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Message-Id: <7D08EC48-F22C-4CC8-839F-2A9677E93DF0@gmail.com> Date: Fri, 29 Dec 2023 14:00:05 +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, 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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