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Message-Id: <1CD1762C-C6C0-4840-A4BD-3A77F40CA02A@gmail.com> Date: Sun, 7 Jan 2024 13:03:27 +0200 From: Martin Zaharinov <micron10@...il.com> To: Thomas Gleixner <tglx@...utronix.de> Cc: peterz@...radead.org, netdev <netdev@...r.kernel.org>, Paolo Abeni <pabeni@...hat.com>, patchwork-bot+netdevbpf@...nel.org, Jakub Kicinski <kuba@...nel.org>, Stephen Hemminger <stephen@...workplumber.org>, kuba+netdrv@...nel.org, dsahern@...il.com, Eric Dumazet <edumazet@...gle.com> Subject: Re: Urgent Bug Report Kernel crash 6.5.2 Hi Thomas this is one more report from one machine Here you will see have to bug report in same day: [Sat Jan 6 07:37:23 2024] ------------[ cut here ]------------ [Sat Jan 6 07:37:23 2024] WARNING: CPU: 12 PID: 0 at lib/rcuref.c:294 rcuref_put_slowpath (lib/rcuref.c:294 (discriminator 1)) [Sat Jan 6 07:37:23 2024] Modules linked in: pppoe pppox ppp_generic slhc nft_limit nft_ct nft_nat nft_chain_nat nf_tables netconsole coretemp bonding mlx5_core mlxfw mlx4_en mlx4_core i40e ixgbe mdio nf_nat_sip nf_conntrack_sip nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_ftp nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ipmi_si ipmi_devintf ipmi_msghandler rtc_cmos megaraid_sas [Sat Jan 6 07:37:23 2024] CPU: 12 PID: 0 Comm: swapper/12 Tainted: G O 6.6.10 #1 [Sat Jan 6 07:37:23 2024] Hardware name: Huawei 2288H V5/BC11SPSCB0, BIOS 7.80 10/28/2020 [Sat Jan 6 07:37:23 2024] RIP: 0010:rcuref_put_slowpath (lib/rcuref.c:294 (discriminator 1)) [Sat Jan 6 07:37:23 2024] Code: 07 83 f8 ff 75 19 ba 00 00 00 e0 f0 0f b1 17 83 f8 ff 74 04 31 c0 5b c3 b8 01 00 00 00 5b c3 3d ff ff ff bf 77 14 85 c0 78 06 <0f> 0b 31 c0 eb e6 c7 07 00 00 00 a0 31 c0 eb dc 80 3d b2 4a e3 00 All code ======== 0: 07 (bad) 1: 83 f8 ff cmp $0xffffffff,%eax 4: 75 19 jne 0x1f 6: ba 00 00 00 e0 mov $0xe0000000,%edx b: f0 0f b1 17 lock cmpxchg %edx,(%rdi) f: 83 f8 ff cmp $0xffffffff,%eax 12: 74 04 je 0x18 14: 31 c0 xor %eax,%eax 16: 5b pop %rbx 17: c3 ret 18: b8 01 00 00 00 mov $0x1,%eax 1d: 5b pop %rbx 1e: c3 ret 1f: 3d ff ff ff bf cmp $0xbfffffff,%eax 24: 77 14 ja 0x3a 26: 85 c0 test %eax,%eax 28: 78 06 js 0x30 2a:* 0f 0b ud2 <-- trapping instruction 2c: 31 c0 xor %eax,%eax 2e: eb e6 jmp 0x16 30: c7 07 00 00 00 a0 movl $0xa0000000,(%rdi) 36: 31 c0 xor %eax,%eax 38: eb dc jmp 0x16 3a: 80 .byte 0x80 3b: 3d b2 4a e3 00 cmp $0xe34ab2,%eax Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 31 c0 xor %eax,%eax 4: eb e6 jmp 0xffffffffffffffec 6: c7 07 00 00 00 a0 movl $0xa0000000,(%rdi) c: 31 c0 xor %eax,%eax e: eb dc jmp 0xffffffffffffffec 10: 80 .byte 0x80 11: 3d b2 4a e3 00 cmp $0xe34ab2,%eax [Sat Jan 6 07:37:23 2024] RSP: 0018:ffffa773091ccdd8 EFLAGS: 00010246 [Sat Jan 6 07:37:23 2024] RAX: 0000000000000000 RBX: ffff8f458c192d00 RCX: 0000000000000042 [Sat Jan 6 07:37:23 2024] RDX: ffff8f455ad71800 RSI: 0000000000000000 RDI: ffff8f458c192d00 [Sat Jan 6 07:37:23 2024] RBP: ffff8f455ad71ec0 R08: 0000000000000000 R09: 0000000000000000 [Sat Jan 6 07:37:23 2024] R10: 0000000000000002 R11: ffffa773091ccd90 R12: ffff8f25c68df800 [Sat Jan 6 07:37:23 2024] R13: 000000000000000e R14: 0000000000000010 R15: ffff8f64bf8a4d10 [Sat Jan 6 07:37:23 2024] FS: 0000000000000000(0000) GS:ffff8f64bf880000(0000) knlGS:0000000000000000 [Sat Jan 6 07:37:23 2024] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [Sat Jan 6 07:37:23 2024] CR2: 00007fbd91318650 CR3: 000000177e014005 CR4: 00000000003706e0 [Sat Jan 6 07:37:23 2024] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [Sat Jan 6 07:37:23 2024] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [Sat Jan 6 07:37:23 2024] Call Trace: [Sat Jan 6 07:37:23 2024] <IRQ> [Sat Jan 6 07:37:23 2024] ? __warn (kernel/panic.c:235 kernel/panic.c:673) [Sat Jan 6 07:37:23 2024] ? report_bug (lib/bug.c:180 lib/bug.c:219) [Sat Jan 6 07:37:23 2024] ? handle_bug (arch/x86/kernel/traps.c:237) [Sat Jan 6 07:37:23 2024] ? exc_invalid_op (arch/x86/kernel/traps.c:258 (discriminator 1)) [Sat Jan 6 07:37:23 2024] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [Sat Jan 6 07:37:23 2024] ? rcuref_put_slowpath (lib/rcuref.c:294 (discriminator 1)) [Sat Jan 6 07:37:23 2024] dst_release (net/core/dst.c:166 (discriminator 1)) [Sat Jan 6 07:37:23 2024] __dev_queue_xmit (./include/net/dst.h:283 net/core/dev.c:4327) [Sat Jan 6 07:37:23 2024] ? nf_hook_slow (./include/linux/netfilter.h:144 net/netfilter/core.c:626) [Sat Jan 6 07:37:23 2024] ip_finish_output2 (./include/net/neighbour.h:526 ./include/net/neighbour.h:540 net/ipv4/ip_output.c:233) [Sat Jan 6 07:37:23 2024] process_backlog (net/core/dev.c:6000) [Sat Jan 6 07:37:23 2024] __napi_poll (net/core/dev.c:6559) [Sat Jan 6 07:37:23 2024] net_rx_action (net/core/dev.c:6628 net/core/dev.c:6759) [Sat Jan 6 07:37:23 2024] __do_softirq (./arch/x86/include/asm/preempt.h:27 kernel/softirq.c:564) [Sat Jan 6 07:37:23 2024] irq_exit_rcu (kernel/softirq.c:436 kernel/softirq.c:641 kernel/softirq.c:653) [Sat Jan 6 07:37:23 2024] sysvec_call_function_single (arch/x86/kernel/smp.c:262 (discriminator 47)) [Sat Jan 6 07:37:23 2024] </IRQ> [Sat Jan 6 07:37:23 2024] <TASK> [Sat Jan 6 07:37:23 2024] asm_sysvec_call_function_single (./arch/x86/include/asm/idtentry.h:656) [Sat Jan 6 07:37:23 2024] RIP: 0010:acpi_safe_halt (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:72 drivers/acpi/processor_idle.c:113) [Sat Jan 6 07:37:23 2024] Code: ed c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 65 48 8b 04 25 40 32 02 00 48 8b 00 a8 08 75 0c eb 07 0f 00 2d c7 0c 2c 00 fb f4 <fa> c3 0f 1f 00 0f b6 47 08 3c 01 74 0b 3c 02 74 05 8b 7f 04 eb 9f All code ======== 0: ed in (%dx),%eax 1: c3 ret 2: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 9: 00 00 00 00 d: 66 90 xchg %ax,%ax f: 65 48 8b 04 25 40 32 mov %gs:0x23240,%rax 16: 02 00 18: 48 8b 00 mov (%rax),%rax 1b: a8 08 test $0x8,%al 1d: 75 0c jne 0x2b 1f: eb 07 jmp 0x28 21: 0f 00 2d c7 0c 2c 00 verw 0x2c0cc7(%rip) # 0x2c0cef 28: fb sti 29: f4 hlt 2a:* fa cli <-- trapping instruction 2b: c3 ret 2c: 0f 1f 00 nopl (%rax) 2f: 0f b6 47 08 movzbl 0x8(%rdi),%eax 33: 3c 01 cmp $0x1,%al 35: 74 0b je 0x42 37: 3c 02 cmp $0x2,%al 39: 74 05 je 0x40 3b: 8b 7f 04 mov 0x4(%rdi),%edi 3e: eb 9f jmp 0xffffffffffffffdf Code starting with the faulting instruction =========================================== 0: fa cli 1: c3 ret 2: 0f 1f 00 nopl (%rax) 5: 0f b6 47 08 movzbl 0x8(%rdi),%eax 9: 3c 01 cmp $0x1,%al b: 74 0b je 0x18 d: 3c 02 cmp $0x2,%al f: 74 05 je 0x16 11: 8b 7f 04 mov 0x4(%rdi),%edi 14: eb 9f jmp 0xffffffffffffffb5 [Sat Jan 6 07:37:23 2024] RSP: 0018:ffffa773007fbe80 EFLAGS: 00000246 [Sat Jan 6 07:37:23 2024] RAX: 0000000000004000 RBX: 0000000000000001 RCX: 000000000000001f [Sat Jan 6 07:37:23 2024] RDX: ffff8f64bf880000 RSI: ffff8f454c6f6800 RDI: ffff8f454c6f6864 [Sat Jan 6 07:37:23 2024] RBP: ffffffffaa216ea0 R08: ffffffffaa216ea0 R09: 0000000000000003 [Sat Jan 6 07:37:23 2024] R10: 0000000000000002 R11: 0000000000000007 R12: 0000000000000001 [Sat Jan 6 07:37:23 2024] R13: ffffffffaa216f08 R14: ffffffffaa216f20 R15: 0000000000000000 [Sat Jan 6 07:37:23 2024] acpi_idle_enter (drivers/acpi/processor_idle.c:709) [Sat Jan 6 07:37:23 2024] cpuidle_enter_state (drivers/cpuidle/cpuidle.c:267) [Sat Jan 6 07:37:23 2024] cpuidle_enter (drivers/cpuidle/cpuidle.c:390 (discriminator 2)) [Sat Jan 6 07:37:23 2024] do_idle (kernel/sched/idle.c:134 kernel/sched/idle.c:215 kernel/sched/idle.c:282) [Sat Jan 6 07:37:23 2024] cpu_startup_entry (kernel/sched/idle.c:379) [Sat Jan 6 07:37:23 2024] start_secondary (arch/x86/kernel/smpboot.c:326) [Sat Jan 6 07:37:23 2024] secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:449) [Sat Jan 6 07:37:23 2024] </TASK> [Sat Jan 6 07:37:23 2024] ---[ end trace 0000000000000000 ]--- [Sat Jan 6 21:33:28 2024] ------------[ cut here ]------------ [Sat Jan 6 21:33:28 2024] rcuref - imbalanced put() [Sat Jan 6 21:33:28 2024] WARNING: CPU: 26 PID: 0 at lib/rcuref.c:279 rcuref_put_slowpath (lib/rcuref.c:279 (discriminator 1)) [Sat Jan 6 21:33:28 2024] Modules linked in: pppoe pppox ppp_generic slhc nft_limit nft_ct nft_nat nft_chain_nat nf_tables netconsole coretemp bonding mlx5_core mlxfw mlx4_en mlx4_core i40e ixgbe mdio nf_nat_sip nf_conntrack_sip nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_ftp nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ipmi_si ipmi_devintf ipmi_msghandler rtc_cmos megaraid_sas [Sat Jan 6 21:33:28 2024] CPU: 26 PID: 0 Comm: swapper/26 Tainted: G W O 6.6.10 #1 [Sat Jan 6 21:33:28 2024] Hardware name: Huawei 2288H V5/BC11SPSCB0, BIOS 7.80 10/28/2020 [Sat Jan 6 21:33:28 2024] RIP: 0010:rcuref_put_slowpath (lib/rcuref.c:279 (discriminator 1)) [Sat Jan 6 21:33:28 2024] Code: 31 c0 eb dc 80 3d b2 4a e3 00 00 74 0a c7 03 00 00 00 e0 31 c0 eb c9 48 c7 c7 54 29 e4 a9 c6 05 98 4a e3 00 01 e8 db 7c c3 ff <0f> 0b eb df cc cc cc cc cc cc cc 48 89 fa 83 e2 07 48 85 f6 74 7f All code ======== 0: 31 c0 xor %eax,%eax 2: eb dc jmp 0xffffffffffffffe0 4: 80 3d b2 4a e3 00 00 cmpb $0x0,0xe34ab2(%rip) # 0xe34abd b: 74 0a je 0x17 d: c7 03 00 00 00 e0 movl $0xe0000000,(%rbx) 13: 31 c0 xor %eax,%eax 15: eb c9 jmp 0xffffffffffffffe0 17: 48 c7 c7 54 29 e4 a9 mov $0xffffffffa9e42954,%rdi 1e: c6 05 98 4a e3 00 01 movb $0x1,0xe34a98(%rip) # 0xe34abd 25: e8 db 7c c3 ff call 0xffffffffffc37d05 2a:* 0f 0b ud2 <-- trapping instruction 2c: eb df jmp 0xd 2e: cc int3 2f: cc int3 30: cc int3 31: cc int3 32: cc int3 33: cc int3 34: cc int3 35: 48 89 fa mov %rdi,%rdx 38: 83 e2 07 and $0x7,%edx 3b: 48 85 f6 test %rsi,%rsi 3e: 74 7f je 0xbf Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: eb df jmp 0xffffffffffffffe3 4: cc int3 5: cc int3 6: cc int3 7: cc int3 8: cc int3 9: cc int3 a: cc int3 b: 48 89 fa mov %rdi,%rdx e: 83 e2 07 and $0x7,%edx 11: 48 85 f6 test %rsi,%rsi 14: 74 7f je 0x95 [Sat Jan 6 21:33:28 2024] RSP: 0018:ffffa7730d528dd8 EFLAGS: 00010292 [Sat Jan 6 21:33:28 2024] RAX: 0000000000000019 RBX: ffff8f4573f7d000 RCX: 00000000ffefffff [Sat Jan 6 21:33:28 2024] RDX: 00000000ffefffff RSI: 0000000000000001 RDI: 00000000ffffffea [Sat Jan 6 21:33:28 2024] RBP: ffff8f265f02d6c0 R08: 0000000000000000 R09: 00000000ffefffff [Sat Jan 6 21:33:28 2024] R10: ffff8f64b6800000 R11: 0000000000000003 R12: ffff8f25c68df800 [Sat Jan 6 21:33:28 2024] R13: 000000000000000e R14: 0000000000000010 R15: ffff8f44c0024d10 [Sat Jan 6 21:33:28 2024] FS: 0000000000000000(0000) GS:ffff8f44c0000000(0000) knlGS:0000000000000000 [Sat Jan 6 21:33:28 2024] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [Sat Jan 6 21:33:28 2024] CR2: 00007fd79aca5000 CR3: 000000015d226005 CR4: 00000000003706e0 [Sat Jan 6 21:33:28 2024] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [Sat Jan 6 21:33:28 2024] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [Sat Jan 6 21:33:28 2024] Call Trace: [Sat Jan 6 21:33:28 2024] <IRQ> [Sat Jan 6 21:33:28 2024] ? __warn (kernel/panic.c:235 kernel/panic.c:673) [Sat Jan 6 21:33:28 2024] ? report_bug (lib/bug.c:180 lib/bug.c:219) [Sat Jan 6 21:33:28 2024] ? handle_bug (arch/x86/kernel/traps.c:237) [Sat Jan 6 21:33:28 2024] ? exc_invalid_op (arch/x86/kernel/traps.c:258 (discriminator 1)) [Sat Jan 6 21:33:28 2024] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [Sat Jan 6 21:33:28 2024] ? rcuref_put_slowpath (lib/rcuref.c:279 (discriminator 1)) [Sat Jan 6 21:33:28 2024] ? rcuref_put_slowpath (lib/rcuref.c:279 (discriminator 1)) [Sat Jan 6 21:33:28 2024] dst_release (net/core/dst.c:166 (discriminator 1)) [Sat Jan 6 21:33:28 2024] __dev_queue_xmit (./include/net/dst.h:283 net/core/dev.c:4327) [Sat Jan 6 21:33:28 2024] ? nf_hook_slow (./include/linux/netfilter.h:144 net/netfilter/core.c:626) [Sat Jan 6 21:33:28 2024] ip_finish_output2 (./include/net/neighbour.h:526 ./include/net/neighbour.h:540 net/ipv4/ip_output.c:233) [Sat Jan 6 21:33:28 2024] process_backlog (net/core/dev.c:6000) [Sat Jan 6 21:33:28 2024] __napi_poll (net/core/dev.c:6559) [Sat Jan 6 21:33:28 2024] net_rx_action (net/core/dev.c:6628 net/core/dev.c:6759) [Sat Jan 6 21:33:28 2024] __do_softirq (./arch/x86/include/asm/preempt.h:27 kernel/softirq.c:564) [Sat Jan 6 21:33:28 2024] irq_exit_rcu (kernel/softirq.c:436 kernel/softirq.c:641 kernel/softirq.c:653) [Sat Jan 6 21:33:28 2024] sysvec_call_function_single (arch/x86/kernel/smp.c:262 (discriminator 47)) [Sat Jan 6 21:33:28 2024] </IRQ> [Sat Jan 6 21:33:28 2024] <TASK> [Sat Jan 6 21:33:28 2024] asm_sysvec_call_function_single (./arch/x86/include/asm/idtentry.h:656) [Sat Jan 6 21:33:28 2024] RIP: 0010:acpi_safe_halt (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:72 drivers/acpi/processor_idle.c:113) [Sat Jan 6 21:33:28 2024] Code: ed c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 65 48 8b 04 25 40 32 02 00 48 8b 00 a8 08 75 0c eb 07 0f 00 2d c7 0c 2c 00 fb f4 <fa> c3 0f 1f 00 0f b6 47 08 3c 01 74 0b 3c 02 74 05 8b 7f 04 eb 9f All code ======== 0: ed in (%dx),%eax 1: c3 ret 2: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 9: 00 00 00 00 d: 66 90 xchg %ax,%ax f: 65 48 8b 04 25 40 32 mov %gs:0x23240,%rax 16: 02 00 18: 48 8b 00 mov (%rax),%rax 1b: a8 08 test $0x8,%al 1d: 75 0c jne 0x2b 1f: eb 07 jmp 0x28 21: 0f 00 2d c7 0c 2c 00 verw 0x2c0cc7(%rip) # 0x2c0cef 28: fb sti 29: f4 hlt 2a:* fa cli <-- trapping instruction 2b: c3 ret 2c: 0f 1f 00 nopl (%rax) 2f: 0f b6 47 08 movzbl 0x8(%rdi),%eax 33: 3c 01 cmp $0x1,%al 35: 74 0b je 0x42 37: 3c 02 cmp $0x2,%al 39: 74 05 je 0x40 3b: 8b 7f 04 mov 0x4(%rdi),%edi 3e: eb 9f jmp 0xffffffffffffffdf Code starting with the faulting instruction =========================================== 0: fa cli 1: c3 ret 2: 0f 1f 00 nopl (%rax) 5: 0f b6 47 08 movzbl 0x8(%rdi),%eax 9: 3c 01 cmp $0x1,%al b: 74 0b je 0x18 d: 3c 02 cmp $0x2,%al f: 74 05 je 0x16 11: 8b 7f 04 mov 0x4(%rdi),%edi 14: eb 9f jmp 0xffffffffffffffb5 [Sat Jan 6 21:33:28 2024] RSP: 0018:ffffa77300e7be80 EFLAGS: 00000246 [Sat Jan 6 21:33:28 2024] RAX: 0000000000004000 RBX: 0000000000000001 RCX: 000000000000001f [Sat Jan 6 21:33:28 2024] RDX: ffff8f44c0000000 RSI: ffff8f454c6fc800 RDI: ffff8f454c6fc864 [Sat Jan 6 21:33:28 2024] RBP: ffffffffaa216ea0 R08: ffffffffaa216ea0 R09: 00003fd7b44cb0a0 [Sat Jan 6 21:33:28 2024] R10: 0000000000000002 R11: 0000000000000007 R12: 0000000000000001 [Sat Jan 6 21:33:28 2024] R13: ffffffffaa216f08 R14: ffffffffaa216f20 R15: 0000000000000000 [Sat Jan 6 21:33:28 2024] acpi_idle_enter (drivers/acpi/processor_idle.c:709) [Sat Jan 6 21:33:28 2024] cpuidle_enter_state (drivers/cpuidle/cpuidle.c:267) [Sat Jan 6 21:33:28 2024] cpuidle_enter (drivers/cpuidle/cpuidle.c:390 (discriminator 2)) [Sat Jan 6 21:33:28 2024] do_idle (kernel/sched/idle.c:134 kernel/sched/idle.c:215 kernel/sched/idle.c:282) [Sat Jan 6 21:33:28 2024] cpu_startup_entry (kernel/sched/idle.c:379) [Sat Jan 6 21:33:28 2024] start_secondary (arch/x86/kernel/smpboot.c:326) [Sat Jan 6 21:33:28 2024] secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:449) [Sat Jan 6 21:33:28 2024] </TASK> [Sat Jan 6 21:33:28 2024] ---[ end trace 0000000000000000 ]--- > On 4 Jan 2024, at 22:51, Martin Zaharinov <micron10@...il.com> wrote: > > Hi Thomas , > > Happy New Year! > > here is two debugs from two new installed machins with kernel 6.6.9: > > dmesg1 : > > [ 2257.449125] ------------[ cut here ]------------ > [ 2257.449245] WARNING: CPU: 1 PID: 40622 at lib/rcuref.c:294 rcuref_put_slowpath+0x2f/0x70 > [ 2257.449373] Modules linked in: nft_limit nf_conntrack_netlink pppoe pppox ppp_generic slhc nft_ct nft_nat nft_chain_nat nf_tables netconsole coretemp bonding ixgbe mdio i40e nf_nat_sip nf_conntrack_sip nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_ftp nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ipmi_si ipmi_devintf ipmi_msghandler rtc_cmos > [ 2257.449642] CPU: 1 PID: 40622 Comm: nc Tainted: G O 6.6.9 #1 > [ 2257.449761] Hardware name: Supermicro PIO-5038MR-H8TRF-NODE/X10SRD-F, BIOS 3.3 10/28/2020 > [ 2257.449883] RIP: 0010:rcuref_put_slowpath+0x2f/0x70 > [ 2257.449977] Code: 07 83 f8 ff 75 19 ba 00 00 00 e0 f0 0f b1 17 83 f8 ff 74 04 31 c0 5b c3 b8 01 00 00 00 5b c3 3d ff ff ff bf 77 14 85 c0 78 06 <0f> 0b 31 c0 eb e6 c7 07 00 00 00 a0 31 c0 eb dc 80 3d e2 4c e3 00 > [ 2257.450135] RSP: 0000:ffffb455cef83b78 EFLAGS: 00010246 > [ 2257.450227] RAX: 0000000000000000 RBX: ffff94873bb77dc0 RCX: ffff9486c0d46b80 > [ 2257.450341] RDX: ffff948736578428 RSI: 00000000fffffe01 RDI: ffff94873bb77dc0 > [ 2257.450456] RBP: ffff948736578428 R08: ffff948e1fa64f08 R09: 0000000000000001 > [ 2257.450570] R10: 0000000000028530 R11: 0000000000000001 R12: ffff94873bb77d80 > [ 2257.450685] R13: ffff94873bb77de8 R14: ffff948e1fa64f08 R15: 000000000266f59d > [ 2257.450802] FS: 00007f0cdbc73800(0000) GS:ffff948e1fa40000(0000) knlGS:0000000000000000 > [ 2257.450918] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 2257.451012] CR2: 00007f0cdc3f5c30 CR3: 0000000178ea0002 CR4: 00000000003706e0 > [ 2257.451127] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 2257.451240] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > [ 2257.451353] Call Trace: > [ 2257.451441] <TASK> > [ 2257.451526] ? __warn+0x6c/0x130 > [ 2257.451616] ? report_bug+0x1b8/0x200 > [ 2257.451707] ? handle_bug+0x36/0x70 > [ 2257.451797] ? exc_invalid_op+0x17/0x1a0 > [ 2257.451886] ? asm_exc_invalid_op+0x16/0x20 > [ 2257.452038] ? rcuref_put_slowpath+0x2f/0x70 > [ 2257.452129] dst_release+0x1c/0x40 > [ 2257.452222] rt_cache_route+0xbd/0xf0 > [ 2257.452313] ? kmem_cache_alloc+0x31/0x390 > [ 2257.452404] rt_set_nexthop.isra.0+0x1b6/0x450 > [ 2257.452495] ip_route_input_slow+0x5d9/0xcc0 > [ 2257.452586] ? nft_nat_do_chain+0x7f/0xd0 [nft_chain_nat] > [ 2257.452681] ? nf_conntrack_udp_packet+0xcf/0x240 [nf_conntrack] > [ 2257.452784] ? nf_nat_inet_fn+0x36f/0x3f0 [nf_nat] > [ 2257.452880] ip_route_input_noref+0xe0/0xf0 > [ 2257.452970] ip_rcv_finish_core.isra.0+0xbb/0x440 > [ 2257.453064] ip_rcv+0xd5/0x110 > [ 2257.453151] ? ip_rcv_core+0x360/0x360 > [ 2257.453240] process_backlog+0x107/0x210 > [ 2257.453330] __napi_poll+0x20/0x180 > [ 2257.453420] net_rx_action+0x29f/0x380 > [ 2257.453510] __do_softirq+0xd0/0x202 > [ 2257.453599] irq_exit_rcu+0x82/0xa0 > [ 2257.453689] sysvec_call_function_single+0x32/0x80 > [ 2257.453781] asm_sysvec_call_function_single+0x16/0x20 > [ 2257.453874] RIP: 0033:0x7f0cdc5928b2 > [ 2257.453963] Code: 06 00 00 4c 89 65 88 49 83 fd 08 0f 84 f7 06 00 00 49 83 fd 26 0f 84 05 07 00 00 4d 85 ed 0f 84 5f 01 00 00 41 0f b6 44 24 04 <89> c6 40 c0 ee 04 0f 84 72 06 00 00 41 0f b6 54 24 05 83 e2 03 ff > [ 2257.454121] RSP: 002b:00007ffc04d3e890 EFLAGS: 00000206 > [ 2257.454215] RAX: 0000000000000012 RBX: 00007f0cdc444db8 RCX: 00007f0cdc4e6e60 > [ 2257.454329] RDX: 0000000000000009 RSI: 00007f0cdc57ef30 RDI: 00007f0cdc42c808 > [ 2257.454442] RBP: 00007ffc04d3e9b0 R08: 00007f0cdc445028 R09: 00007ffc04d3e940 > [ 2257.454555] R10: 00007f0cdbf00be8 R11: 0000000000000000 R12: 00007f0cdc42c898 > [ 2257.454670] R13: 0000000000000006 R14: 0000000600000006 R15: 00007f0cdc581000 > [ 2257.454784] </TASK> > [ 2257.454869] ---[ end trace 0000000000000000 ]— > > > [ 2257.449125] ------------[ cut here ]------------ > [ 2257.449245] WARNING: CPU: 1 PID: 40622 at lib/rcuref.c:294 rcuref_put_slowpath (lib/rcuref.c:294 (discriminator 1)) > [ 2257.449373] Modules linked in: nft_limit nf_conntrack_netlink pppoe pppox ppp_generic slhc nft_ct nft_nat nft_chain_nat nf_tables netconsole coretemp bonding ixgbe mdio i40e nf_nat_sip nf_conntrack_sip nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_ftp nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ipmi_si ipmi_devintf ipmi_msghandler rtc_cmos > [ 2257.449642] CPU: 1 PID: 40622 Comm: nc Tainted: G O 6.6.9 #1 > [ 2257.449761] Hardware name: Supermicro PIO-5038MR-H8TRF-NODE/X10SRD-F, BIOS 3.3 10/28/2020 > [ 2257.449883] RIP: 0010:rcuref_put_slowpath (lib/rcuref.c:294 (discriminator 1)) > [ 2257.449977] Code: 07 83 f8 ff 75 19 ba 00 00 00 e0 f0 0f b1 17 83 f8 ff 74 04 31 c0 5b c3 b8 01 00 00 00 5b c3 3d ff ff ff bf 77 14 85 c0 78 06 <0f> 0b 31 c0 eb e6 c7 07 00 00 00 a0 31 c0 eb dc 80 3d e2 4c e3 00 > All code > ======== > 0: 07 (bad) > 1: 83 f8 ff cmp $0xffffffff,%eax > 4: 75 19 jne 0x1f > 6: ba 00 00 00 e0 mov $0xe0000000,%edx > b: f0 0f b1 17 lock cmpxchg %edx,(%rdi) > f: 83 f8 ff cmp $0xffffffff,%eax > 12: 74 04 je 0x18 > 14: 31 c0 xor %eax,%eax > 16: 5b pop %rbx > 17: c3 ret > 18: b8 01 00 00 00 mov $0x1,%eax > 1d: 5b pop %rbx > 1e: c3 ret > 1f: 3d ff ff ff bf cmp $0xbfffffff,%eax > 24: 77 14 ja 0x3a > 26: 85 c0 test %eax,%eax > 28: 78 06 js 0x30 > 2a:* 0f 0b ud2 <-- trapping instruction > 2c: 31 c0 xor %eax,%eax > 2e: eb e6 jmp 0x16 > 30: c7 07 00 00 00 a0 movl $0xa0000000,(%rdi) > 36: 31 c0 xor %eax,%eax > 38: eb dc jmp 0x16 > 3a: 80 .byte 0x80 > 3b: 3d e2 4c e3 00 cmp $0xe34ce2,%eax > > Code starting with the faulting instruction > =========================================== > 0: 0f 0b ud2 > 2: 31 c0 xor %eax,%eax > 4: eb e6 jmp 0xffffffffffffffec > 6: c7 07 00 00 00 a0 movl $0xa0000000,(%rdi) > c: 31 c0 xor %eax,%eax > e: eb dc jmp 0xffffffffffffffec > 10: 80 .byte 0x80 > 11: 3d e2 4c e3 00 cmp $0xe34ce2,%eax > [ 2257.450135] RSP: 0000:ffffb455cef83b78 EFLAGS: 00010246 > [ 2257.450227] RAX: 0000000000000000 RBX: ffff94873bb77dc0 RCX: ffff9486c0d46b80 > [ 2257.450341] RDX: ffff948736578428 RSI: 00000000fffffe01 RDI: ffff94873bb77dc0 > [ 2257.450456] RBP: ffff948736578428 R08: ffff948e1fa64f08 R09: 0000000000000001 > [ 2257.450570] R10: 0000000000028530 R11: 0000000000000001 R12: ffff94873bb77d80 > [ 2257.450685] R13: ffff94873bb77de8 R14: ffff948e1fa64f08 R15: 000000000266f59d > [ 2257.450802] FS: 00007f0cdbc73800(0000) GS:ffff948e1fa40000(0000) knlGS:0000000000000000 > [ 2257.450918] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 2257.451012] CR2: 00007f0cdc3f5c30 CR3: 0000000178ea0002 CR4: 00000000003706e0 > [ 2257.451127] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 2257.451240] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > [ 2257.451353] Call Trace: > [ 2257.451441] <TASK> > [ 2257.451526] ? __warn (kernel/panic.c:235 kernel/panic.c:673) > [ 2257.451616] ? report_bug (lib/bug.c:180 lib/bug.c:219) > [ 2257.451707] ? handle_bug (arch/x86/kernel/traps.c:237) > [ 2257.451797] ? exc_invalid_op (arch/x86/kernel/traps.c:258 (discriminator 1)) > [ 2257.451886] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) > [ 2257.452038] ? rcuref_put_slowpath (lib/rcuref.c:294 (discriminator 1)) > [ 2257.452129] dst_release (net/core/dst.c:166 (discriminator 1)) > [ 2257.452222] rt_cache_route (net/ipv4/route.c:1499) > [ 2257.452313] ? kmem_cache_alloc (mm/slab.h:711 (discriminator 1) mm/slub.c:3461 (discriminator 1) mm/slub.c:3487 (discriminator 1) mm/slub.c:3494 (discriminator 1) mm/slub.c:3503 (discriminator 1)) > [ 2257.452404] rt_set_nexthop.isra.0 (net/ipv4/route.c:1606 (discriminator 1)) > [ 2257.452495] ip_route_input_slow (./include/net/lwtunnel.h:140 net/ipv4/route.c:1875 net/ipv4/route.c:2154 net/ipv4/route.c:2337) > [ 2257.452586] ? nft_nat_do_chain (net/netfilter/nft_chain_nat.c:33) nft_chain_nat > [ 2257.452681] ? nf_conntrack_udp_packet (net/netfilter/nf_conntrack_proto_udp.c:130) nf_conntrack > [ 2257.452784] ? nf_nat_inet_fn (net/netfilter/nf_nat_core.c:844) nf_nat > [ 2257.452880] ip_route_input_noref (net/ipv4/route.c:2499) > [ 2257.452970] ip_rcv_finish_core.isra.0 (net/ipv4/ip_input.c:367 (discriminator 1)) > [ 2257.453064] ip_rcv (net/ipv4/ip_input.c:448 ./include/linux/netfilter.h:304 ./include/linux/netfilter.h:298 net/ipv4/ip_input.c:569) > [ 2257.453151] ? ip_rcv_core (net/ipv4/ip_input.c:436) > [ 2257.453240] process_backlog (net/core/dev.c:6000) > [ 2257.453330] __napi_poll (net/core/dev.c:6559) > [ 2257.453420] net_rx_action (net/core/dev.c:6628 net/core/dev.c:6759) > [ 2257.453510] __do_softirq (./arch/x86/include/asm/preempt.h:27 kernel/softirq.c:564) > [ 2257.453599] irq_exit_rcu (kernel/softirq.c:436 kernel/softirq.c:641 kernel/softirq.c:653) > [ 2257.453689] sysvec_call_function_single (arch/x86/kernel/smp.c:262 (discriminator 69)) > [ 2257.453781] asm_sysvec_call_function_single (./arch/x86/include/asm/idtentry.h:656) > [ 2257.453874] RIP: 0033:0x7f0cdc5928b2 > [ 2257.453963] Code: 06 00 00 4c 89 65 88 49 83 fd 08 0f 84 f7 06 00 00 49 83 fd 26 0f 84 05 07 00 00 4d 85 ed 0f 84 5f 01 00 00 41 0f b6 44 24 04 <89> c6 40 c0 ee 04 0f 84 72 06 00 00 41 0f b6 54 24 05 83 e2 03 ff > All code > ======== > 0: 06 (bad) > 1: 00 00 add %al,(%rax) > 3: 4c 89 65 88 mov %r12,-0x78(%rbp) > 7: 49 83 fd 08 cmp $0x8,%r13 > b: 0f 84 f7 06 00 00 je 0x708 > 11: 49 83 fd 26 cmp $0x26,%r13 > 15: 0f 84 05 07 00 00 je 0x720 > 1b: 4d 85 ed test %r13,%r13 > 1e: 0f 84 5f 01 00 00 je 0x183 > 24: 41 0f b6 44 24 04 movzbl 0x4(%r12),%eax > 2a:* 89 c6 mov %eax,%esi <-- trapping instruction > 2c: 40 c0 ee 04 shr $0x4,%sil > 30: 0f 84 72 06 00 00 je 0x6a8 > 36: 41 0f b6 54 24 05 movzbl 0x5(%r12),%edx > 3c: 83 e2 03 and $0x3,%edx > 3f: ff .byte 0xff > > Code starting with the faulting instruction > =========================================== > 0: 89 c6 mov %eax,%esi > 2: 40 c0 ee 04 shr $0x4,%sil > 6: 0f 84 72 06 00 00 je 0x67e > c: 41 0f b6 54 24 05 movzbl 0x5(%r12),%edx > 12: 83 e2 03 and $0x3,%edx > 15: ff .byte 0xff > [ 2257.454121] RSP: 002b:00007ffc04d3e890 EFLAGS: 00000206 > [ 2257.454215] RAX: 0000000000000012 RBX: 00007f0cdc444db8 RCX: 00007f0cdc4e6e60 > [ 2257.454329] RDX: 0000000000000009 RSI: 00007f0cdc57ef30 RDI: 00007f0cdc42c808 > [ 2257.454442] RBP: 00007ffc04d3e9b0 R08: 00007f0cdc445028 R09: 00007ffc04d3e940 > [ 2257.454555] R10: 00007f0cdbf00be8 R11: 0000000000000000 R12: 00007f0cdc42c898 > [ 2257.454670] R13: 0000000000000006 R14: 0000000600000006 R15: 00007f0cdc581000 > [ 2257.454784] </TASK> > [ 2257.454869] ---[ end trace 0000000000000000 ]— > > > dmesg2 : > > [ 2567.167952] ------------[ cut here ]------------ > [ 2567.168053] WARNING: CPU: 11 PID: 0 at lib/rcuref.c:294 rcuref_put_slowpath+0x2f/0x70 > [ 2567.168175] Modules linked in: nft_limit nf_conntrack_netlink pppoe pppox ppp_generic slhc nft_ct nft_nat nft_chain_nat nf_tables netconsole coretemp bonding ixgbe mdio i40e nf_nat_sip nf_conntrack_sip nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_ftp nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ipmi_si ipmi_devintf ipmi_msghandler rtc_cmos > [ 2567.168445] CPU: 11 PID: 0 Comm: swapper/11 Tainted: G O 6.6.9 #1 > [ 2567.168561] Hardware name: Supermicro X10SRD-F/X10SRD-F, BIOS 3.4 06/05/2021 > [ 2567.168675] RIP: 0010:rcuref_put_slowpath+0x2f/0x70 > [ 2567.168767] Code: 07 83 f8 ff 75 19 ba 00 00 00 e0 f0 0f b1 17 83 f8 ff 74 04 31 c0 5b c3 b8 01 00 00 00 5b c3 3d ff ff ff bf 77 14 85 c0 78 06 <0f> 0b 31 c0 eb e6 c7 07 00 00 00 a0 31 c0 eb dc 80 3d e2 4c e3 00 > [ 2567.168924] RSP: 0018:ffffaeaf80418d00 EFLAGS: 00010246 > [ 2567.169017] RAX: 0000000000000000 RBX: ffff9fef84d6a940 RCX: 0000000000000074 > [ 2567.169132] RDX: ffff9fefe2e30000 RSI: 0000000000000000 RDI: ffff9fef84d6a940 > [ 2567.169246] RBP: ffff9fefe2e306c0 R08: 0000000000000000 R09: 0000000000029300 > [ 2567.169359] R10: 0000000000029300 R11: ffffaeaf80418d90 R12: ffff9fef8aebe000 > [ 2567.169473] R13: ffff9fef80896800 R14: ffff9fef85335200 R15: ffff9fef8ae07080 > [ 2567.169586] FS: 0000000000000000(0000) GS:ffff9ff6dfcc0000(0000) knlGS:0000000000000000 > [ 2567.169702] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 2567.169795] CR2: 00007f4eaa7e6650 CR3: 0000000156dcd006 CR4: 00000000003706e0 > [ 2567.169908] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 2567.170022] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > [ 2567.170137] Call Trace: > [ 2567.170224] <IRQ> > [ 2567.170309] ? __warn+0x6c/0x130 > [ 2567.170399] ? report_bug+0x1b8/0x200 > [ 2567.170488] ? handle_bug+0x36/0x70 > [ 2567.170577] ? exc_invalid_op+0x17/0x1a0 > [ 2567.170667] ? asm_exc_invalid_op+0x16/0x20 > [ 2567.170758] ? rcuref_put_slowpath+0x2f/0x70 > [ 2567.170850] dst_release+0x1c/0x40 > [ 2567.170939] __dev_queue_xmit+0x598/0xce0 > [ 2567.171029] vlan_dev_hard_start_xmit+0x82/0xc0 > [ 2567.171122] dev_hard_start_xmit+0x95/0xe0 > [ 2567.171216] __dev_queue_xmit+0x863/0xce0 > [ 2567.171305] ? eth_header+0x25/0xc0 > [ 2567.171394] ip_finish_output2+0x1a0/0x530 > [ 2567.171485] process_backlog+0x107/0x210 > [ 2567.171575] __napi_poll+0x20/0x180 > [ 2567.171663] net_rx_action+0x29f/0x380 > [ 2567.171752] ? rebalance_domains+0x14c/0x300 > [ 2567.171843] __do_softirq+0xd0/0x202 > [ 2567.171932] irq_exit_rcu+0x82/0xa0 > [ 2567.172022] common_interrupt+0x7a/0xa0 > [ 2567.172111] </IRQ> > [ 2567.172198] <TASK> > [ 2567.172283] asm_common_interrupt+0x22/0x40 > [ 2567.172374] RIP: 0010:cpuidle_enter_state+0xa3/0x6a0 > [ 2567.172467] Code: 46 40 40 0f 84 02 01 00 00 e8 c9 a0 70 ff e8 d4 f6 ff ff 31 ff 49 89 c6 e8 0a b9 6f ff 45 84 ff 0f 85 d9 00 00 00 fb 45 85 ed <0f> 88 b8 00 00 00 49 63 cd 48 8b 04 24 48 6b f1 68 49 29 c6 48 8d > [ 2567.172623] RSP: 0018:ffffaeaf80177e98 EFLAGS: 00000202 > [ 2567.172715] RAX: ffff9ff6dfce3a80 RBX: ffff9fef81338000 RCX: 000000000000001f > [ 2567.172828] RDX: 00000255b721ed84 RSI: 00000000238e3b7a RDI: 0000000000000000 > [ 2567.172942] RBP: ffffffffba216ea0 R08: 0000000000000004 R09: ffff9ff6dfcdef00 > [ 2567.173055] R10: ffff9ff6dfcdef00 R11: 0000000000000007 R12: 0000000000000001 > [ 2567.173168] R13: 0000000000000001 R14: 00000255b721ed84 R15: 0000000000000000 > [ 2567.173283] ? cpuidle_enter_state+0x96/0x6a0 > [ 2567.173374] cpuidle_enter+0x24/0x40 > [ 2567.173464] do_idle+0x1a7/0x210 > [ 2567.173552] cpu_startup_entry+0x21/0x30 > [ 2567.173642] start_secondary+0xe1/0xf0 > [ 2567.173732] secondary_startup_64_no_verify+0x178/0x17b > [ 2567.173825] </TASK> > [ 2567.173910] ---[ end trace 0000000000000000 ]— > > > [ 2567.167952] ------------[ cut here ]------------ > [ 2567.168053] WARNING: CPU: 11 PID: 0 at lib/rcuref.c:294 rcuref_put_slowpath (lib/rcuref.c:294 (discriminator 1)) > [ 2567.168175] Modules linked in: nft_limit nf_conntrack_netlink pppoe pppox ppp_generic slhc nft_ct nft_nat nft_chain_nat nf_tables netconsole coretemp bonding ixgbe mdio i40e nf_nat_sip nf_conntrack_sip nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_ftp nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ipmi_si ipmi_devintf ipmi_msghandler rtc_cmos > [ 2567.168445] CPU: 11 PID: 0 Comm: swapper/11 Tainted: G O 6.6.9 #1 > [ 2567.168561] Hardware name: Supermicro X10SRD-F/X10SRD-F, BIOS 3.4 06/05/2021 > [ 2567.168675] RIP: 0010:rcuref_put_slowpath (lib/rcuref.c:294 (discriminator 1)) > [ 2567.168767] Code: 07 83 f8 ff 75 19 ba 00 00 00 e0 f0 0f b1 17 83 f8 ff 74 04 31 c0 5b c3 b8 01 00 00 00 5b c3 3d ff ff ff bf 77 14 85 c0 78 06 <0f> 0b 31 c0 eb e6 c7 07 00 00 00 a0 31 c0 eb dc 80 3d e2 4c e3 00 > All code > ======== > 0: 07 (bad) > 1: 83 f8 ff cmp $0xffffffff,%eax > 4: 75 19 jne 0x1f > 6: ba 00 00 00 e0 mov $0xe0000000,%edx > b: f0 0f b1 17 lock cmpxchg %edx,(%rdi) > f: 83 f8 ff cmp $0xffffffff,%eax > 12: 74 04 je 0x18 > 14: 31 c0 xor %eax,%eax > 16: 5b pop %rbx > 17: c3 ret > 18: b8 01 00 00 00 mov $0x1,%eax > 1d: 5b pop %rbx > 1e: c3 ret > 1f: 3d ff ff ff bf cmp $0xbfffffff,%eax > 24: 77 14 ja 0x3a > 26: 85 c0 test %eax,%eax > 28: 78 06 js 0x30 > 2a:* 0f 0b ud2 <-- trapping instruction > 2c: 31 c0 xor %eax,%eax > 2e: eb e6 jmp 0x16 > 30: c7 07 00 00 00 a0 movl $0xa0000000,(%rdi) > 36: 31 c0 xor %eax,%eax > 38: eb dc jmp 0x16 > 3a: 80 .byte 0x80 > 3b: 3d e2 4c e3 00 cmp $0xe34ce2,%eax > > Code starting with the faulting instruction > =========================================== > 0: 0f 0b ud2 > 2: 31 c0 xor %eax,%eax > 4: eb e6 jmp 0xffffffffffffffec > 6: c7 07 00 00 00 a0 movl $0xa0000000,(%rdi) > c: 31 c0 xor %eax,%eax > e: eb dc jmp 0xffffffffffffffec > 10: 80 .byte 0x80 > 11: 3d e2 4c e3 00 cmp $0xe34ce2,%eax > [ 2567.168924] RSP: 0018:ffffaeaf80418d00 EFLAGS: 00010246 > [ 2567.169017] RAX: 0000000000000000 RBX: ffff9fef84d6a940 RCX: 0000000000000074 > [ 2567.169132] RDX: ffff9fefe2e30000 RSI: 0000000000000000 RDI: ffff9fef84d6a940 > [ 2567.169246] RBP: ffff9fefe2e306c0 R08: 0000000000000000 R09: 0000000000029300 > [ 2567.169359] R10: 0000000000029300 R11: ffffaeaf80418d90 R12: ffff9fef8aebe000 > [ 2567.169473] R13: ffff9fef80896800 R14: ffff9fef85335200 R15: ffff9fef8ae07080 > [ 2567.169586] FS: 0000000000000000(0000) GS:ffff9ff6dfcc0000(0000) knlGS:0000000000000000 > [ 2567.169702] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 2567.169795] CR2: 00007f4eaa7e6650 CR3: 0000000156dcd006 CR4: 00000000003706e0 > [ 2567.169908] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 2567.170022] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > [ 2567.170137] Call Trace: > [ 2567.170224] <IRQ> > [ 2567.170309] ? __warn (kernel/panic.c:235 kernel/panic.c:673) > [ 2567.170399] ? report_bug (lib/bug.c:180 lib/bug.c:219) > [ 2567.170488] ? handle_bug (arch/x86/kernel/traps.c:237) > [ 2567.170577] ? exc_invalid_op (arch/x86/kernel/traps.c:258 (discriminator 1)) > [ 2567.170667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) > [ 2567.170758] ? rcuref_put_slowpath (lib/rcuref.c:294 (discriminator 1)) > [ 2567.170850] dst_release (net/core/dst.c:166 (discriminator 1)) > [ 2567.170939] __dev_queue_xmit (./include/net/dst.h:283 net/core/dev.c:4327) > [ 2567.171029] vlan_dev_hard_start_xmit (net/8021q/vlan_dev.c:130) > [ 2567.171122] dev_hard_start_xmit (./include/linux/netdevice.h:4926 net/core/dev.c:3576 net/core/dev.c:3592) > [ 2567.171216] __dev_queue_xmit (./include/linux/netdevice.h:3300 (discriminator 25) net/core/dev.c:4373 (discriminator 25)) > [ 2567.171305] ? eth_header (net/ethernet/eth.c:85) > [ 2567.171394] ip_finish_output2 (./include/net/neighbour.h:542 (discriminator 2) net/ipv4/ip_output.c:233 (discriminator 2)) > [ 2567.171485] process_backlog (net/core/dev.c:6000) > [ 2567.171575] __napi_poll (net/core/dev.c:6559) > [ 2567.171663] net_rx_action (net/core/dev.c:6628 net/core/dev.c:6759) > [ 2567.171752] ? rebalance_domains (kernel/sched/fair.c:11719 kernel/sched/fair.c:11895) > [ 2567.171843] __do_softirq (./arch/x86/include/asm/preempt.h:27 kernel/softirq.c:564) > [ 2567.171932] irq_exit_rcu (kernel/softirq.c:436 kernel/softirq.c:641 kernel/softirq.c:653) > [ 2567.172022] common_interrupt (arch/x86/kernel/irq.c:247 (discriminator 47)) > [ 2567.172111] </IRQ> > [ 2567.172198] <TASK> > [ 2567.172283] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:640) > [ 2567.172374] RIP: 0010:cpuidle_enter_state (drivers/cpuidle/cpuidle.c:291) > [ 2567.172467] Code: 46 40 40 0f 84 02 01 00 00 e8 c9 a0 70 ff e8 d4 f6 ff ff 31 ff 49 89 c6 e8 0a b9 6f ff 45 84 ff 0f 85 d9 00 00 00 fb 45 85 ed <0f> 88 b8 00 00 00 49 63 cd 48 8b 04 24 48 6b f1 68 49 29 c6 48 8d > All code > ======== > 0: 46 rex.RX > 1: 40 rex > 2: 40 0f 84 02 01 00 00 rex je 0x10b > 9: e8 c9 a0 70 ff call 0xffffffffff70a0d7 > e: e8 d4 f6 ff ff call 0xfffffffffffff6e7 > 13: 31 ff xor %edi,%edi > 15: 49 89 c6 mov %rax,%r14 > 18: e8 0a b9 6f ff call 0xffffffffff6fb927 > 1d: 45 84 ff test %r15b,%r15b > 20: 0f 85 d9 00 00 00 jne 0xff > 26: fb sti > 27: 45 85 ed test %r13d,%r13d > 2a:* 0f 88 b8 00 00 00 js 0xe8 <-- trapping instruction > 30: 49 63 cd movslq %r13d,%rcx > 33: 48 8b 04 24 mov (%rsp),%rax > 37: 48 6b f1 68 imul $0x68,%rcx,%rsi > 3b: 49 29 c6 sub %rax,%r14 > 3e: 48 rex.W > 3f: 8d .byte 0x8d > > Code starting with the faulting instruction > =========================================== > 0: 0f 88 b8 00 00 00 js 0xbe > 6: 49 63 cd movslq %r13d,%rcx > 9: 48 8b 04 24 mov (%rsp),%rax > d: 48 6b f1 68 imul $0x68,%rcx,%rsi > 11: 49 29 c6 sub %rax,%r14 > 14: 48 rex.W > 15: 8d .byte 0x8d > [ 2567.172623] RSP: 0018:ffffaeaf80177e98 EFLAGS: 00000202 > [ 2567.172715] RAX: ffff9ff6dfce3a80 RBX: ffff9fef81338000 RCX: 000000000000001f > [ 2567.172828] RDX: 00000255b721ed84 RSI: 00000000238e3b7a RDI: 0000000000000000 > [ 2567.172942] RBP: ffffffffba216ea0 R08: 0000000000000004 R09: ffff9ff6dfcdef00 > [ 2567.173055] R10: ffff9ff6dfcdef00 R11: 0000000000000007 R12: 0000000000000001 > [ 2567.173168] R13: 0000000000000001 R14: 00000255b721ed84 R15: 0000000000000000 > [ 2567.173283] ? cpuidle_enter_state (drivers/cpuidle/cpuidle.c:285) > [ 2567.173374] cpuidle_enter (drivers/cpuidle/cpuidle.c:390 (discriminator 2)) > [ 2567.173464] do_idle (kernel/sched/idle.c:134 kernel/sched/idle.c:215 kernel/sched/idle.c:282) > [ 2567.173552] cpu_startup_entry (kernel/sched/idle.c:379) > [ 2567.173642] start_secondary (arch/x86/kernel/smpboot.c:326) > [ 2567.173732] secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:449) > [ 2567.173825] </TASK> > [ 2567.173910] ---[ end trace 0000000000000000 ]— > > best regards, > Martin > > >> On 29 Dec 2023, at 14:00, Martin Zaharinov <micron10@...il.com> wrote: >> >> Hi Thomas, >> >> One more report from second machine: >> >> [21299.954952] ------------[ cut here ]------------ >> [21299.955047] WARNING: CPU: 15 PID: 0 at lib/rcuref.c:294 rcuref_put_slowpath (lib/rcuref.c:294 (discriminator 1)) >> [21299.955153] Modules linked in: nft_limit nft_ct nft_nat nft_chain_nat nf_tables netconsole coretemp virtio_net net_failover failover virtio_pci virtio_pci_legacy_dev virtio_pci_modern_dev virtio virtio_ring e1000e e1000 vmxnet3 i40e ixgbe mdio bnxt_en nf_nat_sip nf_conntrack_sip nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_ftp nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 rtc_cmos >> [21299.955378] CPU: 15 PID: 0 Comm: swapper/15 Tainted: G O 6.6.8 #1 >> [21299.955475] Hardware name: HPE ProLiant DL380 Gen10/ProLiant DL380 Gen10, BIOS U30 02/09/2023 >> [21299.955575] RIP: 0010:rcuref_put_slowpath (lib/rcuref.c:294 (discriminator 1)) >> [21299.955662] Code: 07 83 f8 ff 75 19 ba 00 00 00 e0 f0 0f b1 17 83 f8 ff 74 04 31 c0 5b c3 b8 01 00 00 00 5b c3 3d ff ff ff bf 77 14 85 c0 78 06 <0f> 0b 31 c0 eb e6 c7 07 00 00 00 a0 31 c0 eb dc 80 3d e2 4e e3 00 >> All code >> ======== >> 0: 07 (bad) >> 1: 83 f8 ff cmp $0xffffffff,%eax >> 4: 75 19 jne 0x1f >> 6: ba 00 00 00 e0 mov $0xe0000000,%edx >> b: f0 0f b1 17 lock cmpxchg %edx,(%rdi) >> f: 83 f8 ff cmp $0xffffffff,%eax >> 12: 74 04 je 0x18 >> 14: 31 c0 xor %eax,%eax >> 16: 5b pop %rbx >> 17: c3 ret >> 18: b8 01 00 00 00 mov $0x1,%eax >> 1d: 5b pop %rbx >> 1e: c3 ret >> 1f: 3d ff ff ff bf cmp $0xbfffffff,%eax >> 24: 77 14 ja 0x3a >> 26: 85 c0 test %eax,%eax >> 28: 78 06 js 0x30 >> 2a:* 0f 0b ud2 <-- trapping instruction >> 2c: 31 c0 xor %eax,%eax >> 2e: eb e6 jmp 0x16 >> 30: c7 07 00 00 00 a0 movl $0xa0000000,(%rdi) >> 36: 31 c0 xor %eax,%eax >> 38: eb dc jmp 0x16 >> 3a: 80 .byte 0x80 >> 3b: 3d e2 4e e3 00 cmp $0xe34ee2,%eax >> >> Code starting with the faulting instruction >> =========================================== >> 0: 0f 0b ud2 >> 2: 31 c0 xor %eax,%eax >> 4: eb e6 jmp 0xffffffffffffffec >> 6: c7 07 00 00 00 a0 movl $0xa0000000,(%rdi) >> c: 31 c0 xor %eax,%eax >> e: eb dc jmp 0xffffffffffffffec >> 10: 80 .byte 0x80 >> 11: 3d e2 4e e3 00 cmp $0xe34ee2,%eax >> [21299.955793] RSP: 0018:ffff96a7c0578c30 EFLAGS: 00010246 >> [21299.955879] RAX: 0000000000000000 RBX: ffff8b75d1e49a80 RCX: ffff8b75c6667c80 >> [21299.955974] RDX: ffff8b84bfbe4f08 RSI: 00000000fffffe01 RDI: ffff8b75d1e49a80 >> [21299.956070] RBP: ffff8b84bfbe4f08 R08: ffff8b84bfbe4f08 R09: 0000000000000001 >> [21299.956167] R10: 0000000000028530 R11: 0000000000000001 R12: ffff8b75d1e49a40 >> [21299.956261] R13: ffff8b75d1e49aa8 R14: ffff8b84bfbe4f08 R15: 00000000c26ab667 >> [21299.956358] FS: 0000000000000000(0000) GS:ffff8b84bfbc0000(0000) knlGS:0000000000000000 >> [21299.956457] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >> [21299.956540] CR2: 00007f2e185c73c8 CR3: 0000000950014003 CR4: 00000000003706e0 >> [21299.956635] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 >> [21299.956730] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 >> [21299.956826] Call Trace: >> [21299.956905] <IRQ> >> [21299.956983] ? __warn (kernel/panic.c:235 kernel/panic.c:673) >> [21299.957065] ? report_bug (lib/bug.c:180 lib/bug.c:219) >> [21299.957147] ? handle_bug (arch/x86/kernel/traps.c:237) >> [21299.957228] ? exc_invalid_op (arch/x86/kernel/traps.c:258 (discriminator 1)) >> [21299.957308] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) >> [21299.957393] ? rcuref_put_slowpath (lib/rcuref.c:294 (discriminator 1)) >> [21299.957476] dst_release (net/core/dst.c:166 (discriminator 1)) >> [21299.957559] rt_cache_route (net/ipv4/route.c:1499) >> [21299.957641] rt_set_nexthop.isra.0 (net/ipv4/route.c:1606 (discriminator 1)) >> [21299.957722] ip_route_input_slow (./include/net/lwtunnel.h:140 net/ipv4/route.c:1875 net/ipv4/route.c:2154 net/ipv4/route.c:2337) >> [21299.957804] ? free_unref_page (./include/linux/list.h:150 (discriminator 1) ./include/linux/list.h:169 (discriminator 1) mm/page_alloc.c:2377 (discriminator 1) mm/page_alloc.c:2428 (discriminator 1)) >> [21299.957889] ip_route_input_noref (net/ipv4/route.c:2499) >> [21299.957972] ip_rcv_finish_core.isra.0 (net/ipv4/ip_input.c:367 (discriminator 1)) >> [21299.958058] ip_rcv (net/ipv4/ip_input.c:448 ./include/linux/netfilter.h:304 ./include/linux/netfilter.h:298 net/ipv4/ip_input.c:569) >> [21299.958139] ? ip_rcv_core (net/ipv4/ip_input.c:436) >> [21299.958220] process_backlog (net/core/dev.c:5997) >> [21299.958302] __napi_poll (net/core/dev.c:6556) >> [21299.958384] net_rx_action (net/core/dev.c:6625 net/core/dev.c:6756) >> [21299.958466] __do_softirq (./arch/x86/include/asm/preempt.h:27 kernel/softirq.c:564) >> [21299.958549] irq_exit_rcu (kernel/softirq.c:436 kernel/softirq.c:641 kernel/softirq.c:653) >> [21299.958631] sysvec_call_function_single (arch/x86/kernel/smp.c:262 (discriminator 47)) >> [21299.958714] </IRQ> >> [21299.958792] <TASK> >> [21299.958869] asm_sysvec_call_function_single (./arch/x86/include/asm/idtentry.h:656) >> [21299.958953] RIP: 0010:acpi_safe_halt (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:72 drivers/acpi/processor_idle.c:113) >> [21299.959038] Code: ed c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 65 48 8b 04 25 40 32 02 00 48 8b 00 a8 08 75 0c eb 07 0f 00 2d 57 0f 2c 00 fb f4 <fa> c3 0f 1f 00 0f b6 47 08 3c 01 74 0b 3c 02 74 05 8b 7f 04 eb 9f >> All code >> ======== >> 0: ed in (%dx),%eax >> 1: c3 ret >> 2: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) >> 9: 00 00 00 00 >> d: 66 90 xchg %ax,%ax >> f: 65 48 8b 04 25 40 32 mov %gs:0x23240,%rax >> 16: 02 00 >> 18: 48 8b 00 mov (%rax),%rax >> 1b: a8 08 test $0x8,%al >> 1d: 75 0c jne 0x2b >> 1f: eb 07 jmp 0x28 >> 21: 0f 00 2d 57 0f 2c 00 verw 0x2c0f57(%rip) # 0x2c0f7f >> 28: fb sti >> 29: f4 hlt >> 2a:* fa cli <-- trapping instruction >> 2b: c3 ret >> 2c: 0f 1f 00 nopl (%rax) >> 2f: 0f b6 47 08 movzbl 0x8(%rdi),%eax >> 33: 3c 01 cmp $0x1,%al >> 35: 74 0b je 0x42 >> 37: 3c 02 cmp $0x2,%al >> 39: 74 05 je 0x40 >> 3b: 8b 7f 04 mov 0x4(%rdi),%edi >> 3e: eb 9f jmp 0xffffffffffffffdf >> >> Code starting with the faulting instruction >> =========================================== >> 0: fa cli >> 1: c3 ret >> 2: 0f 1f 00 nopl (%rax) >> 5: 0f b6 47 08 movzbl 0x8(%rdi),%eax >> 9: 3c 01 cmp $0x1,%al >> b: 74 0b je 0x18 >> d: 3c 02 cmp $0x2,%al >> f: 74 05 je 0x16 >> 11: 8b 7f 04 mov 0x4(%rdi),%edi >> 14: eb 9f jmp 0xffffffffffffffb5 >> [21299.959162] RSP: 0018:ffff96a7c015be80 EFLAGS: 00000246 >> [21299.959247] RAX: 0000000000004000 RBX: 0000000000000001 RCX: 000000000000001f >> [21299.959343] RDX: ffff8b84bfbc0000 RSI: ffff8b75c76ba000 RDI: ffff8b75c76ba064 >> [21299.959437] RBP: ffffffffae216ea0 R08: ffffffffae216ea0 R09: 0000000000000003 >> [21299.959533] R10: 0000000000000002 R11: 0000000000000008 R12: 0000000000000001 >> [21299.959630] R13: ffffffffae216f08 R14: ffffffffae216f20 R15: 0000000000000000 >> [21299.959725] acpi_idle_enter (drivers/acpi/processor_idle.c:709) >> [21299.959807] cpuidle_enter_state (drivers/cpuidle/cpuidle.c:267) >> [21299.959890] cpuidle_enter (drivers/cpuidle/cpuidle.c:390 (discriminator 2)) >> [21299.959975] do_idle (kernel/sched/idle.c:134 kernel/sched/idle.c:215 kernel/sched/idle.c:282) >> [21299.960058] cpu_startup_entry (kernel/sched/idle.c:379) >> [21299.960140] start_secondary (arch/x86/kernel/smpboot.c:326) >> [21299.960223] secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:433) >> [21299.960306] </TASK> >> [21299.960384] ---[ end trace 0000000000000000 ]--- >> >>> On 22 Dec 2023, at 19:26, Martin Zaharinov <micron10@...il.com> wrote: >>> >>> Hi Thomas, >>> >>> this is with applyed patch from you. >>> See logs >>> >>> >>> [43040.198064] ------------[ cut here ]------------ >>> [43040.198407] WARNING: CPU: 47 PID: 0 at lib/rcuref.c:294 rcuref_put_slowpath+0x2f/0x70 >>> [43040.198685] Modules linked in: pppoe pppox ppp_generic slhc nft_limit nft_ct nft_nat nft_chain_nat nf_tables netconsole tg3 igb i2c_algo_bit e1000e bnxt_en mlx5_core mlxfw mlx4_en mlx4_core i40e ixgbe mdio nf_nat_sip nf_conntrack_sip nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_ftp nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ipmi_devintf ipmi_msghandler rtc_cmos >>> [43040.199478] CPU: 47 PID: 0 Comm: swapper/47 Tainted: G O 6.6.8 #1 >>> [43040.199660] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020 >>> [43040.199886] RIP: 0010:rcuref_put_slowpath+0x2f/0x70 >>> [43040.200028] Code: 07 83 f8 ff 75 19 ba 00 00 00 e0 f0 0f b1 17 83 f8 ff 74 04 31 c0 5b c3 b8 01 00 00 00 5b c3 3d ff ff ff bf 77 14 85 c0 78 06 <0f> 0b 31 c0 eb e6 c7 07 00 00 00 a0 31 c0 eb dc 80 3d e2 4e e3 00 >>> [43040.200387] RSP: 0018:ffffa39d83e88c30 EFLAGS: 00010246 >>> [43040.200528] RAX: 0000000000000000 RBX: ffff9c58e966b840 RCX: ffff9c5bc4e35680 >>> [43040.200700] RDX: ffff9c5fafde4f08 RSI: 00000000fffffe01 RDI: ffff9c58e966b840 >>> [43040.200871] RBP: ffff9c5fafde4f08 R08: ffff9c5fafde4f08 R09: 0000000000000001 >>> [43040.201044] R10: 00000000000286e0 R11: 0000000000000001 R12: ffff9c58e966b800 >>> [43040.201255] R13: ffff9c58e966b868 R14: ffff9c5fafde4f08 R15: 000000008f5de42b >>> [43040.201439] FS: 0000000000000000(0000) GS:ffff9c5fafdc0000(0000) knlGS:0000000000000000 >>> [43040.201642] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >>> [43040.201799] CR2: 00007f1401217714 CR3: 0000000464b94003 CR4: 00000000001706e0 >>> [43040.201994] Call Trace: >>> [43040.202095] <IRQ> >>> [43040.202187] ? __warn+0x6c/0x130 >>> [43040.202301] ? report_bug+0x1b8/0x200 >>> [43040.202418] ? handle_bug+0x36/0x70 >>> [43040.202534] ? exc_invalid_op+0x17/0x1a0 >>> [43040.202652] ? asm_exc_invalid_op+0x16/0x20 >>> [43040.202781] ? rcuref_put_slowpath+0x2f/0x70 >>> [43040.202909] dst_release+0x1c/0x40 >>> [43040.203026] rt_cache_route+0xbd/0xf0 >>> [43040.203143] rt_set_nexthop.isra.0+0x1b6/0x450 >>> [43040.203272] ip_route_input_slow+0x5d9/0xcc0 >>> [43040.203401] ? nf_conntrack_udp_packet+0x17c/0x240 [nf_conntrack] >>> [43040.203581] ip_route_input_noref+0xe0/0xf0 >>> [43040.203704] ip_rcv_finish_core.isra.0+0xbb/0x440 >>> [43040.203855] ip_rcv+0xd5/0x110 >>> [43040.203962] ? ip_rcv_core+0x360/0x360 >>> [43040.204079] process_backlog+0x107/0x210 >>> [43040.204201] __napi_poll+0x20/0x180 >>> [43040.204315] net_rx_action+0x29f/0x380 >>> [43040.204432] __do_softirq+0xd0/0x202 >>> [43040.204549] irq_exit_rcu+0x82/0xa0 >>> [43040.204667] common_interrupt+0x7a/0xa0 >>> [43040.204786] </IRQ> >>> [43040.204876] <TASK> >>> [43040.204965] asm_common_interrupt+0x22/0x40 >>> [43040.205090] RIP: 0010:acpi_safe_halt+0x1b/0x20 >>> [43040.205220] Code: ed c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 65 48 8b 04 25 40 32 02 00 48 8b 00 a8 08 75 0c eb 07 0f 00 2d 57 0f 2c 00 fb f4 <fa> c3 0f 1f 00 0f b6 47 08 3c 01 74 0b 3c 02 74 05 8b 7f 04 eb 9f >>> [43040.205578] RSP: 0018:ffffa39d8234fe80 EFLAGS: 00000246 >>> [43040.205718] RAX: 0000000000004000 RBX: 0000000000000001 RCX: 000000000000001f >>> [43040.205890] RDX: ffff9c5fafdc0000 RSI: ffff9c5882e95800 RDI: ffff9c5882e95864 >>> [43040.206063] RBP: ffffffffa9216ea0 R08: ffffffffa9216ea0 R09: 0000000000000003 >>> [43040.206246] R10: 0000000000000002 R11: 0000000000000008 R12: 0000000000000001 >>> [43040.206419] R13: ffffffffa9216f08 R14: ffffffffa9216f20 R15: 0000000000000000 >>> [43040.206593] acpi_idle_enter+0x77/0xc0 >>> [43040.206711] cpuidle_enter_state+0x69/0x6a0 >>> [43040.206835] cpuidle_enter+0x24/0x40 >>> [43040.206954] do_idle+0x1a7/0x210 >>> [43040.207066] cpu_startup_entry+0x21/0x30 >>> [43040.207188] start_secondary+0xe1/0xf0 >>> [43040.207310] secondary_startup_64_no_verify+0x166/0x16b >>> [43040.207451] </TASK> >>> [43040.207542] ---[ end trace 0000000000000000 ]--- >>> >>> >>> >>> [43040.198064] ------------[ cut here ]------------ >>> [43040.198407] WARNING: CPU: 47 PID: 0 at lib/rcuref.c:294 rcuref_put_slowpath (lib/rcuref.c:294 (discriminator 1)) >>> [43040.198685] Modules linked in: pppoe pppox ppp_generic slhc nft_limit nft_ct nft_nat nft_chain_nat nf_tables netconsole tg3 igb i2c_algo_bit e1000e bnxt_en mlx5_core mlxfw mlx4_en mlx4_core i40e ixgbe mdio nf_nat_sip nf_conntrack_sip nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_ftp nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ipmi_devintf ipmi_msghandler rtc_cmos >>> [43040.199478] CPU: 47 PID: 0 Comm: swapper/47 Tainted: G O 6.6.8 #1 >>> [43040.199660] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020 >>> [43040.199886] RIP: 0010:rcuref_put_slowpath (lib/rcuref.c:294 (discriminator 1)) >>> [43040.200028] Code: 07 83 f8 ff 75 19 ba 00 00 00 e0 f0 0f b1 17 83 f8 ff 74 04 31 c0 5b c3 b8 01 00 00 00 5b c3 3d ff ff ff bf 77 14 85 c0 78 06 <0f> 0b 31 c0 eb e6 c7 07 00 00 00 a0 31 c0 eb dc 80 3d e2 4e e3 00 >>> All code >>> ======== >>> 0: 07 (bad) >>> 1: 83 f8 ff cmp $0xffffffff,%eax >>> 4: 75 19 jne 0x1f >>> 6: ba 00 00 00 e0 mov $0xe0000000,%edx >>> b: f0 0f b1 17 lock cmpxchg %edx,(%rdi) >>> f: 83 f8 ff cmp $0xffffffff,%eax >>> 12: 74 04 je 0x18 >>> 14: 31 c0 xor %eax,%eax >>> 16: 5b pop %rbx >>> 17: c3 ret >>> 18: b8 01 00 00 00 mov $0x1,%eax >>> 1d: 5b pop %rbx >>> 1e: c3 ret >>> 1f: 3d ff ff ff bf cmp $0xbfffffff,%eax >>> 24: 77 14 ja 0x3a >>> 26: 85 c0 test %eax,%eax >>> 28: 78 06 js 0x30 >>> 2a:* 0f 0b ud2 <-- trapping instruction >>> 2c: 31 c0 xor %eax,%eax >>> 2e: eb e6 jmp 0x16 >>> 30: c7 07 00 00 00 a0 movl $0xa0000000,(%rdi) >>> 36: 31 c0 xor %eax,%eax >>> 38: eb dc jmp 0x16 >>> 3a: 80 .byte 0x80 >>> 3b: 3d e2 4e e3 00 cmp $0xe34ee2,%eax >>> >>> Code starting with the faulting instruction >>> =========================================== >>> 0: 0f 0b ud2 >>> 2: 31 c0 xor %eax,%eax >>> 4: eb e6 jmp 0xffffffffffffffec >>> 6: c7 07 00 00 00 a0 movl $0xa0000000,(%rdi) >>> c: 31 c0 xor %eax,%eax >>> e: eb dc jmp 0xffffffffffffffec >>> 10: 80 .byte 0x80 >>> 11: 3d e2 4e e3 00 cmp $0xe34ee2,%eax >>> [43040.200387] RSP: 0018:ffffa39d83e88c30 EFLAGS: 00010246 >>> [43040.200528] RAX: 0000000000000000 RBX: ffff9c58e966b840 RCX: ffff9c5bc4e35680 >>> [43040.200700] RDX: ffff9c5fafde4f08 RSI: 00000000fffffe01 RDI: ffff9c58e966b840 >>> [43040.200871] RBP: ffff9c5fafde4f08 R08: ffff9c5fafde4f08 R09: 0000000000000001 >>> [43040.201044] R10: 00000000000286e0 R11: 0000000000000001 R12: ffff9c58e966b800 >>> [43040.201255] R13: ffff9c58e966b868 R14: ffff9c5fafde4f08 R15: 000000008f5de42b >>> [43040.201439] FS: 0000000000000000(0000) GS:ffff9c5fafdc0000(0000) knlGS:0000000000000000 >>> [43040.201642] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >>> [43040.201799] CR2: 00007f1401217714 CR3: 0000000464b94003 CR4: 00000000001706e0 >>> [43040.201994] Call Trace: >>> [43040.202095] <IRQ> >>> [43040.202187] ? __warn (kernel/panic.c:235 kernel/panic.c:673) >>> [43040.202301] ? report_bug (lib/bug.c:180 lib/bug.c:219) >>> [43040.202418] ? handle_bug (arch/x86/kernel/traps.c:237) >>> [43040.202534] ? exc_invalid_op (arch/x86/kernel/traps.c:258 (discriminator 1)) >>> [43040.202652] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) >>> [43040.202781] ? rcuref_put_slowpath (lib/rcuref.c:294 (discriminator 1)) >>> [43040.202909] dst_release (net/core/dst.c:166 (discriminator 1)) >>> [43040.203026] rt_cache_route (net/ipv4/route.c:1499) >>> [43040.203143] rt_set_nexthop.isra.0 (net/ipv4/route.c:1606 (discriminator 1)) >>> [43040.203272] ip_route_input_slow (./include/net/lwtunnel.h:140 net/ipv4/route.c:1875 net/ipv4/route.c:2154 net/ipv4/route.c:2337) >>> [43040.203401] ? nf_conntrack_udp_packet (net/netfilter/nf_conntrack_proto_udp.c:124) nf_conntrack >>> [43040.203581] ip_route_input_noref (net/ipv4/route.c:2499) >>> [43040.203704] ip_rcv_finish_core.isra.0 (net/ipv4/ip_input.c:367 (discriminator 1)) >>> [43040.203855] ip_rcv (net/ipv4/ip_input.c:448 ./include/linux/netfilter.h:304 ./include/linux/netfilter.h:298 net/ipv4/ip_input.c:569) >>> [43040.203962] ? ip_rcv_core (net/ipv4/ip_input.c:436) >>> [43040.204079] process_backlog (net/core/dev.c:5997) >>> [43040.204201] __napi_poll (net/core/dev.c:6556) >>> [43040.204315] net_rx_action (net/core/dev.c:6625 net/core/dev.c:6756) >>> [43040.204432] __do_softirq (./arch/x86/include/asm/preempt.h:27 kernel/softirq.c:564) >>> [43040.204549] irq_exit_rcu (kernel/softirq.c:436 kernel/softirq.c:641 kernel/softirq.c:653) >>> [43040.204667] common_interrupt (arch/x86/kernel/irq.c:247 (discriminator 47)) >>> [43040.204786] </IRQ> >>> [43040.204876] <TASK> >>> [43040.204965] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:640) >>> [43040.205090] RIP: 0010:acpi_safe_halt (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:72 drivers/acpi/processor_idle.c:113) >>> [43040.205220] Code: ed c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 65 48 8b 04 25 40 32 02 00 48 8b 00 a8 08 75 0c eb 07 0f 00 2d 57 0f 2c 00 fb f4 <fa> c3 0f 1f 00 0f b6 47 08 3c 01 74 0b 3c 02 74 05 8b 7f 04 eb 9f >>> All code >>> ======== >>> 0: ed in (%dx),%eax >>> 1: c3 ret >>> 2: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) >>> 9: 00 00 00 00 >>> d: 66 90 xchg %ax,%ax >>> f: 65 48 8b 04 25 40 32 mov %gs:0x23240,%rax >>> 16: 02 00 >>> 18: 48 8b 00 mov (%rax),%rax >>> 1b: a8 08 test $0x8,%al >>> 1d: 75 0c jne 0x2b >>> 1f: eb 07 jmp 0x28 >>> 21: 0f 00 2d 57 0f 2c 00 verw 0x2c0f57(%rip) # 0x2c0f7f >>> 28: fb sti >>> 29: f4 hlt >>> 2a:* fa cli <-- trapping instruction >>> 2b: c3 ret >>> 2c: 0f 1f 00 nopl (%rax) >>> 2f: 0f b6 47 08 movzbl 0x8(%rdi),%eax >>> 33: 3c 01 cmp $0x1,%al >>> 35: 74 0b je 0x42 >>> 37: 3c 02 cmp $0x2,%al >>> 39: 74 05 je 0x40 >>> 3b: 8b 7f 04 mov 0x4(%rdi),%edi >>> 3e: eb 9f jmp 0xffffffffffffffdf >>> >>> Code starting with the faulting instruction >>> =========================================== >>> 0: fa cli >>> 1: c3 ret >>> 2: 0f 1f 00 nopl (%rax) >>> 5: 0f b6 47 08 movzbl 0x8(%rdi),%eax >>> 9: 3c 01 cmp $0x1,%al >>> b: 74 0b je 0x18 >>> d: 3c 02 cmp $0x2,%al >>> f: 74 05 je 0x16 >>> 11: 8b 7f 04 mov 0x4(%rdi),%edi >>> 14: eb 9f jmp 0xffffffffffffffb5 >>> [43040.205578] RSP: 0018:ffffa39d8234fe80 EFLAGS: 00000246 >>> [43040.205718] RAX: 0000000000004000 RBX: 0000000000000001 RCX: 000000000000001f >>> [43040.205890] RDX: ffff9c5fafdc0000 RSI: ffff9c5882e95800 RDI: ffff9c5882e95864 >>> [43040.206063] RBP: ffffffffa9216ea0 R08: ffffffffa9216ea0 R09: 0000000000000003 >>> [43040.206246] R10: 0000000000000002 R11: 0000000000000008 R12: 0000000000000001 >>> [43040.206419] R13: ffffffffa9216f08 R14: ffffffffa9216f20 R15: 0000000000000000 >>> [43040.206593] acpi_idle_enter (drivers/acpi/processor_idle.c:709) >>> [43040.206711] cpuidle_enter_state (drivers/cpuidle/cpuidle.c:267) >>> [43040.206835] cpuidle_enter (drivers/cpuidle/cpuidle.c:390 (discriminator 2)) >>> [43040.206954] do_idle (kernel/sched/idle.c:134 kernel/sched/idle.c:215 kernel/sched/idle.c:282) >>> [43040.207066] cpu_startup_entry (kernel/sched/idle.c:379) >>> [43040.207188] start_secondary (arch/x86/kernel/smpboot.c:326) >>> [43040.207310] secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:433) >>> [43040.207451] </TASK> >>> [43040.207542] ---[ end trace 0000000000000000 ]--- >>> >>>> On 19 Dec 2023, at 16:26, Thomas Gleixner <tglx@...utronix.de> wrote: >>>> >>>> On Tue, Dec 19 2023 at 11:25, Martin Zaharinov wrote: >>>>>> On 12 Dec 2023, at 20:16, Thomas Gleixner <tglx@...utronix.de> wrote: >>>>>> Btw, how easy is this to reproduce? >>>>> >>>>> Its not easy this report is generate on machine with 5-6k users , with >>>>> traffic and one time is show on 1 day , other show after 4-5 days… >>>> >>>> I love those bugs ... >>>> >>>>> Apply this patch and will upload image on one machine as fast as >>>>> possible and when get any reports will send you. >>>> >>>> Let's see how that goes! >>>> >>>> Thanks, >>>> >>>> tglx >>> >> >
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