lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-ID: <202507231021.dcf24373-lkp@intel.com>
Date: Wed, 23 Jul 2025 16:46:15 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Peter Zijlstra <peterz@...radead.org>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, <linux-kernel@...r.kernel.org>,
	<x86@...nel.org>, Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	<linux-mm@...ck.org>, <ltp@...ts.linux.it>, <oliver.sang@...el.com>
Subject: [tip:locking/futex] [futex]  56180dd20c:
 BUG:sleeping_function_called_from_invalid_context_at_kernel/nsproxy.c



Hello,

kernel test robot noticed "BUG:sleeping_function_called_from_invalid_context_at_kernel/nsproxy.c" on:

commit: 56180dd20c19e5b0fa34822997a9ac66b517e7b3 ("futex: Use RCU-based per-CPU reference counting instead of rcuref_t")
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git locking/futex

[test failed on linux-next/master 97987520025658f30bb787a99ffbd9bbff9ffc9d]

in testcase: ltp
version: ltp-x86_64-81ba405df-1_20250719
with following parameters:

	test: mm-oom



config: x86_64-rhel-9.4-ltp
compiler: gcc-12
test machine: 104 threads 2 sockets (Skylake) with 192G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)


the issue (1)(2) happen randomly upon 56180dd20c.

a255b78d14324f8a 56180dd20c19e5b0fa34822997a
---------------- ---------------------------
       fail:runs  %reproduction    fail:runs
           |             |             |
           :50          48%          24:50    dmesg.BUG:scheduling_while_atomic    <---- (2)
           :50          48%          24:50    dmesg.BUG:sleeping_function_called_from_invalid_context_at_kernel/nsproxy.c   <---- (1)
         50:50           0%          50:50    dmesg.Mem-Info
         50:50           0%          50:50    dmesg.invoked_oom-killer:gfp_mask=0x



If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202507231021.dcf24373-lkp@intel.com


[  286.673775][   C97] BUG: sleeping function called from invalid context at kernel/nsproxy.c:233   <---- (1)
[  286.673784][   C97] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 6748, name: oom03
[  286.673787][   C97] preempt_count: 7ffffffe, expected: 0
[  286.673790][   C97] RCU nest depth: 0, expected: 0
[  286.673794][   C97] CPU: 97 UID: 0 PID: 6748 Comm: oom03 Not tainted 6.16.0-rc5-00002-g56180dd20c19 #1 PREEMPT(voluntary)
[  286.673801][   C97] Call Trace:
[  286.673803][   C97]  <TASK>
[ 286.673805][ C97] dump_stack_lvl (lib/dump_stack.c:123 (discriminator 1)) 
[ 286.673817][ C97] __might_resched (kernel/sched/core.c:8806) 
[ 286.673824][ C97] ? free_pid (kernel/pid.c:147) 
[ 286.673830][ C97] switch_task_namespaces (include/linux/kernel.h:61 kernel/nsproxy.c:233) 
[ 286.673836][ C97] copy_process (kernel/fork.c:2450) 
[ 286.673846][ C97] ? __pfx_copy_process (kernel/fork.c:1922) 
[ 286.673851][ C97] ? _inline_copy_from_user (arch/x86/include/asm/uaccess_64.h:134 arch/x86/include/asm/uaccess_64.h:134 arch/x86/include/asm/uaccess_64.h:141 include/linux/uaccess.h:178) 
[ 286.673859][ C97] ? copy_clone_args_from_user (include/linux/uaccess.h:401 kernel/fork.c:2771) 
[ 286.673865][ C97] kernel_clone (include/linux/random.h:26 kernel/fork.c:2604) 
[ 286.673870][ C97] ? __pfx_kernel_clone (kernel/fork.c:2563) 
[ 286.673877][ C97] __do_sys_clone3 (kernel/fork.c:2907) 
[ 286.673880][ C97] ? __pfx___do_sys_clone3 (kernel/fork.c:2887) 
[ 286.673886][ C97] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) 
[ 286.673892][ C97] ? __pfx__raw_spin_lock_irq (kernel/locking/spinlock.c:169) 
[ 286.673897][ C97] ? recalc_sigpending (arch/x86/include/asm/bitops.h:206 arch/x86/include/asm/bitops.h:238 include/asm-generic/bitops/instrumented-non-atomic.h:142 include/linux/thread_info.h:126 kernel/signal.c:180) 
[ 286.673902][ C97] ? sigprocmask (kernel/signal.c:3259) 
[ 286.673906][ C97] ? __pfx_sigprocmask (kernel/signal.c:3236) 
[ 286.673910][ C97] ? wake_up_q (arch/x86/include/asm/atomic.h:93 include/linux/atomic/atomic-arch-fallback.h:949 include/linux/atomic/atomic-instrumented.h:401 include/linux/refcount.h:389 include/linux/refcount.h:432 include/linux/refcount.h:450 include/linux/sched/task.h:134 kernel/sched/core.c:1082) 
[ 286.673916][ C97] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 286.673923][ C97] ? __x64_sys_rt_sigprocmask (kernel/signal.c:3341 kernel/signal.c:3318 kernel/signal.c:3318) 
[ 286.673928][ C97] ? __pfx_rwsem_wake+0x10/0x10 
[ 286.673934][ C97] ? __pfx___x64_sys_rt_sigprocmask (kernel/signal.c:3318) 
[ 286.673938][ C97] ? handle_mm_fault (mm/memory.c:6254 mm/memory.c:6407) 
[ 286.673948][ C97] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 286.673953][ C97] ? exc_page_fault (arch/x86/include/asm/irqflags.h:37 arch/x86/include/asm/irqflags.h:114 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 286.673958][ C97] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  286.673963][   C97] RIP: 0033:0x7fd4206da889
[ 286.673967][ C97] Code: 31 ed e9 44 ff ff ff e8 25 e9 00 00 0f 1f 44 00 00 b8 ea ff ff ff 48 85 ff 74 2c 48 85 d2 74 27 49 89 c8 b8 b3 01 00 00 0f 05 <48> 85 c0 7c 18 74 01 c3 31 ed 48 83 e4 f0 4c 89 c7 ff d2 48 89 c7
All code
========
   0:	31 ed                	xor    %ebp,%ebp
   2:	e9 44 ff ff ff       	jmp    0xffffffffffffff4b
   7:	e8 25 e9 00 00       	call   0xe931
   c:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  11:	b8 ea ff ff ff       	mov    $0xffffffea,%eax
  16:	48 85 ff             	test   %rdi,%rdi
  19:	74 2c                	je     0x47
  1b:	48 85 d2             	test   %rdx,%rdx
  1e:	74 27                	je     0x47
  20:	49 89 c8             	mov    %rcx,%r8
  23:	b8 b3 01 00 00       	mov    $0x1b3,%eax
  28:	0f 05                	syscall
  2a:*	48 85 c0             	test   %rax,%rax		<-- trapping instruction
  2d:	7c 18                	jl     0x47
  2f:	74 01                	je     0x32
  31:	c3                   	ret
  32:	31 ed                	xor    %ebp,%ebp
  34:	48 83 e4 f0          	and    $0xfffffffffffffff0,%rsp
  38:	4c 89 c7             	mov    %r8,%rdi
  3b:	ff d2                	call   *%rdx
  3d:	48 89 c7             	mov    %rax,%rdi

Code starting with the faulting instruction
===========================================
   0:	48 85 c0             	test   %rax,%rax
   3:	7c 18                	jl     0x1d
   5:	74 01                	je     0x8
   7:	c3                   	ret
   8:	31 ed                	xor    %ebp,%ebp
   a:	48 83 e4 f0          	and    $0xfffffffffffffff0,%rsp
   e:	4c 89 c7             	mov    %r8,%rdi
  11:	ff d2                	call   *%rdx
  13:	48 89 c7             	mov    %rax,%rdi
[  286.673970][   C97] RSP: 002b:00007ffe10129188 EFLAGS: 00000206 ORIG_RAX: 00000000000001b3
[  286.673975][   C97] RAX: ffffffffffffffda RBX: 00007fd420659ef0 RCX: 00007fd4206da889
[  286.673978][   C97] RDX: 00007fd420659ef0 RSI: 0000000000000058 RDI: 00007ffe101291d0
[  286.673981][   C97] RBP: 00007fba8a9ff6c0 R08: 00007fba8a9ff6c0 R09: 00007ffe101292c7
[  286.673983][   C97] R10: 0000000000000008 R11: 0000000000000206 R12: ffffffffffffff78
[  286.673986][   C97] R13: 0000000000000000 R14: 00007ffe101291d0 R15: 00007fba8a1ff000
[  286.673991][   C97]  </TASK>
[  286.674639][   C97] BUG: scheduling while atomic: oom03/6748/0x7fffffff        <-------- (2)
[  286.674642][   C97] Modules linked in: intel_rapl_msr intel_rapl_common intel_uncore_frequency intel_uncore_frequency_common skx_edac skx_edac_common nfit libnvdimm btrfs blake2b_generic xor zstd_compress raid6_pq x86_pkg_temp_thermal intel_powerclamp sd_mod sg coretemp kvm_intel irdma kvm snd_pcm irqbypass ghash_clmulni_intel ice snd_timer rapl snd ast ahci intel_cstate gnss soundcore libahci drm_client_lib ib_uverbs nvme mei_me ipmi_ssif drm_shmem_helper intel_uncore ib_core pcspkr acpi_power_meter i2c_i801 nvme_core ioatdma libata drm_kms_helper mei ipmi_si lpc_ich i2c_smbus intel_pch_thermal acpi_ipmi wmi dca ipmi_devintf ipmi_msghandler acpi_pad joydev binfmt_misc drm fuse loop dm_mod ip_tables
[  286.674732][   C97] CPU: 97 UID: 0 PID: 6748 Comm: oom03 Tainted: G        W           6.16.0-rc5-00002-g56180dd20c19 #1 PREEMPT(voluntary)
[  286.674738][   C97] Tainted: [W]=WARN
[  286.674740][   C97] Call Trace:
[  286.674742][   C97]  <TASK>
[ 286.674744][ C97] dump_stack_lvl (lib/dump_stack.c:123 (discriminator 1)) 
[ 286.674748][ C97] __schedule_bug (kernel/sched/core.c:5958) 
[ 286.674753][ C97] ? enqueue_task_fair (kernel/sched/fair.c:7030) 
[ 286.674760][ C97] schedule_debug (arch/x86/include/asm/preempt.h:34 kernel/sched/core.c:5985) 
[ 286.674765][ C97] __schedule (arch/x86/include/asm/jump_label.h:36 include/linux/jump_label.h:208 kernel/sched/features.h:66 kernel/sched/core.c:6689) 
[ 286.674770][ C97] ? __pfx___resched_curr (kernel/sched/core.c:1094) 
[ 286.674774][ C97] ? set_next_entity (kernel/sched/fair.c:892 kernel/sched/fair.c:5553) 
[ 286.674779][ C97] ? __pfx___schedule (kernel/sched/core.c:6667) 
[ 286.674783][ C97] ? mod_memcg_state (arch/x86/include/asm/atomic.h:23 include/linux/atomic/atomic-arch-fallback.h:457 include/linux/atomic/atomic-instrumented.h:33 mm/memcontrol.c:562 mm/memcontrol.c:587 mm/memcontrol.c:566 mm/memcontrol.c:707) 
[ 286.674792][ C97] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) 
[ 286.674796][ C97] ? __pfx__raw_spin_lock_irqsave (kernel/locking/spinlock.c:161) 
[ 286.674800][ C97] ? __memcg_kmem_uncharge_page (include/linux/percpu-refcount.h:174 include/linux/percpu-refcount.h:332 include/linux/percpu-refcount.h:351 include/linux/memcontrol.h:782 include/linux/memcontrol.h:779 mm/memcontrol.c:2872) 
[ 286.674805][ C97] ? do_task_dead (kernel/sched/core.c:6802) 
[ 286.674810][ C97] do_task_dead (kernel/sched/core.c:6808 (discriminator 15)) 
[ 286.674814][ C97] do_exit (include/trace/events/sched.h:335 include/trace/events/sched.h:335 kernel/exit.c:941) 
[ 286.674818][ C97] ? __pfx_do_exit (kernel/exit.c:897) 
[ 286.674821][ C97] ? task_work_run (kernel/task_work.c:230 (discriminator 1)) 
[ 286.674825][ C97] ? _raw_spin_lock_irq (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:120 kernel/locking/spinlock.c:170) 
[ 286.674831][ C97] do_group_exit (kernel/exit.c:1086) 
[ 286.674835][ C97] get_signal (include/linux/list.h:218 include/linux/list.h:287 kernel/signal.c:704 kernel/signal.c:2912) 
[ 286.674840][ C97] ? __do_sys_clone3 (kernel/fork.c:2907) 
[ 286.674843][ C97] ? __pfx___do_sys_clone3 (kernel/fork.c:2887) 
[ 286.674847][ C97] ? __pfx_get_signal (kernel/signal.c:2800) 
[ 286.674852][ C97] arch_do_signal_or_restart (arch/x86/kernel/signal.c:337) 
[ 286.674858][ C97] ? __pfx_arch_do_signal_or_restart (arch/x86/kernel/signal.c:334) 
[ 286.674862][ C97] ? __pfx__raw_spin_lock_irq (kernel/locking/spinlock.c:169) 
[ 286.674867][ C97] ? recalc_sigpending (arch/x86/include/asm/bitops.h:206 arch/x86/include/asm/bitops.h:238 include/asm-generic/bitops/instrumented-non-atomic.h:142 include/linux/thread_info.h:126 kernel/signal.c:180) 
[ 286.674871][ C97] ? sigprocmask (kernel/signal.c:3259) 
[ 286.674875][ C97] ? __pfx_sigprocmask (kernel/signal.c:3236) 
[ 286.674879][ C97] exit_to_user_mode_loop (kernel/entry/common.c:113) 
[ 286.674884][ C97] do_syscall_64 (include/linux/entry-common.h:330 include/linux/entry-common.h:414 include/linux/entry-common.h:449 arch/x86/entry/syscall_64.c:100) 
[ 286.674889][ C97] ? __x64_sys_rt_sigprocmask (kernel/signal.c:3341 kernel/signal.c:3318 kernel/signal.c:3318) 
[ 286.674892][ C97] ? __pfx_rwsem_wake+0x10/0x10 
[ 286.674897][ C97] ? __pfx___x64_sys_rt_sigprocmask (kernel/signal.c:3318) 
[ 286.674901][ C97] ? handle_mm_fault (mm/memory.c:6254 mm/memory.c:6407) 
[ 286.674907][ C97] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 286.674913][ C97] ? exc_page_fault (arch/x86/include/asm/irqflags.h:37 arch/x86/include/asm/irqflags.h:114 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 286.674917][ C97] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  286.674921][   C97] RIP: 0033:0x7fd4206da889
[ 286.674924][ C97] Code: Unable to access opcode bytes at 0x7fd4206da85f.

Code starting with the faulting instruction
===========================================
[  286.674926][   C97] RSP: 002b:00007ffe10129188 EFLAGS: 00000206 ORIG_RAX: 00000000000001b3
[  286.674929][   C97] RAX: fffffffffffffff4 RBX: 00007fd420659ef0 RCX: 00007fd4206da889
[  286.674932][   C97] RDX: 00007fd420659ef0 RSI: 0000000000000058 RDI: 00007ffe101291d0
[  286.674934][   C97] RBP: 00007fba8a9ff6c0 R08: 00007fba8a9ff6c0 R09: 00007ffe101292c7
[  286.674936][   C97] R10: 0000000000000008 R11: 0000000000000206 R12: ffffffffffffff78
[  286.674939][   C97] R13: 0000000000000000 R14: 00007ffe101291d0 R15: 00007fba8a1ff000
[  286.674944][   C97]  </TASK>
[  286.705993][ T6788] oom03 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=0
[  286.707733][ T1358]
[  286.709933][ T6788] CPU: 48 UID: 0 PID: 6788 Comm: oom03 Tainted: G        W           6.16.0-rc5-00002-g56180dd20c19 #1 PREEMPT(voluntary)
[  286.709942][ T6788] Tainted: [W]=WARN
[  286.709944][ T6788] Call Trace:
[  286.709946][ T6788]  <TASK>
[ 286.709948][ T6788] dump_stack_lvl (lib/dump_stack.c:123 (discriminator 1)) 
[ 286.709956][ T6788] dump_header (mm/oom_kill.c:74 mm/oom_kill.c:468) 
[ 286.709964][ T6788] oom_kill_process (mm/oom_kill.c:450 mm/oom_kill.c:1041) 
[ 286.709970][ T6788] out_of_memory (mm/oom_kill.c:1180 (discriminator 4)) 
[ 286.709975][ T6788] ? __pfx_out_of_memory (mm/oom_kill.c:1113) 
[ 286.709980][ T6788] ? try_to_free_mem_cgroup_pages (include/linux/sched/mm.h:339 include/linux/sched/mm.h:440 mm/vmscan.c:6710) 
[ 286.709989][ T6788] mem_cgroup_out_of_memory (mm/memcontrol.c:1654) 
[ 286.709998][ T6788] ? __pfx_mem_cgroup_out_of_memory (mm/memcontrol.c:1634) 
[ 286.710005][ T6788] ? cgroup_file_notify (kernel/cgroup/cgroup.c:4570) 
[ 286.710012][ T6788] try_charge_memcg (mm/memcontrol.c:1677 mm/memcontrol.c:2404) 
[ 286.710018][ T6788] ? __pfx_try_charge_memcg (mm/memcontrol.c:2306) 
[ 286.710023][ T6788] ? folio_alloc_mpol_noprof (arch/x86/include/asm/bitops.h:206 arch/x86/include/asm/bitops.h:238 include/asm-generic/bitops/instrumented-non-atomic.h:142 include/linux/page-flags.h:867 include/linux/page-flags.h:888 mm/internal.h:755 mm/mempolicy.c:2444) 
[ 286.710029][ T6788] ? vma_alloc_folio_noprof (mm/mempolicy.c:2473) 
[ 286.710034][ T6788] charge_memcg (mm/memcontrol.c:4771) 
[ 286.710039][ T6788] __mem_cgroup_charge (include/linux/cgroup_refcnt.h:78 mm/memcontrol.c:4788) 
[ 286.710044][ T6788] alloc_anon_folio (mm/memory.c:1073 mm/memory.c:5014) 
[ 286.710050][ T6788] ? __folio_batch_add_and_move (arch/x86/include/asm/atomic.h:23 include/linux/atomic/atomic-arch-fallback.h:457 include/linux/atomic/atomic-instrumented.h:33 include/linux/swap.h:391 mm/swap.c:195) 
[ 286.710058][ T6788] do_anonymous_page (mm/memory.c:5071) 
[ 286.710063][ T6788] ? ___pte_offset_map (include/linux/pgtable.h:347 include/linux/pgtable.h:624 mm/pgtable-generic.c:289) 
[ 286.710070][ T6788] handle_pte_fault (mm/memory.c:6069) 
[ 286.710074][ T6788] ? reweight_entity (kernel/sched/fair.c:3836) 
[ 286.710079][ T6788] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 286.710083][ T6788] ? __pfx_run_posix_cpu_timers (kernel/time/posix-cpu-timers.c:1403) 
[ 286.710091][ T6788] __handle_mm_fault (mm/memory.c:6212) 
[ 286.710096][ T6788] ? __update_blocked_fair (kernel/sched/fair.c:9813) 
[ 286.710100][ T6788] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 286.710109][ T6788] handle_mm_fault (mm/memory.c:6381) 
[ 286.710113][ T6788] ? irqtime_account_irq (kernel/sched/cputime.c:64) 
[ 286.710118][ T6788] do_user_addr_fault (arch/x86/mm/fault.c:1337) 
[ 286.710127][ T6788] exc_page_fault (arch/x86/include/asm/irqflags.h:37 arch/x86/include/asm/irqflags.h:114 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 286.710132][ T6788] asm_exc_page_fault (arch/x86/include/asm/idtentry.h:574) 
[  286.710136][ T6788] RIP: 0033:0x5597027a6fc8
[ 286.710139][ T6788] Code: f4 ff ff 48 83 f8 ff 0f 84 96 00 00 00 48 89 c5 41 83 fc 02 74 2c 41 83 fc 03 74 6e e8 91 fc ff ff 31 d2 48 98 0f 1f 44 00 00 <c6> 44 15 00 07 48 01 c2 48 39 d3 7f f3 31 c0 5b 5d 41 5c c3 0f 1f
All code
========
   0:	f4                   	hlt
   1:	ff                   	(bad)
   2:	ff 48 83             	decl   -0x7d(%rax)
   5:	f8                   	clc
   6:	ff 0f                	decl   (%rdi)
   8:	84 96 00 00 00 48    	test   %dl,0x48000000(%rsi)
   e:	89 c5                	mov    %eax,%ebp
  10:	41 83 fc 02          	cmp    $0x2,%r12d
  14:	74 2c                	je     0x42
  16:	41 83 fc 03          	cmp    $0x3,%r12d
  1a:	74 6e                	je     0x8a
  1c:	e8 91 fc ff ff       	call   0xfffffffffffffcb2
  21:	31 d2                	xor    %edx,%edx
  23:	48 98                	cltq
  25:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  2a:*	c6 44 15 00 07       	movb   $0x7,0x0(%rbp,%rdx,1)		<-- trapping instruction
  2f:	48 01 c2             	add    %rax,%rdx
  32:	48 39 d3             	cmp    %rdx,%rbx
  35:	7f f3                	jg     0x2a
  37:	31 c0                	xor    %eax,%eax
  39:	5b                   	pop    %rbx
  3a:	5d                   	pop    %rbp
  3b:	41 5c                	pop    %r12
  3d:	c3                   	ret
  3e:	0f                   	.byte 0xf
  3f:	1f                   	(bad)

Code starting with the faulting instruction
===========================================
   0:	c6 44 15 00 07       	movb   $0x7,0x0(%rbp,%rdx,1)
   5:	48 01 c2             	add    %rax,%rdx
   8:	48 39 d3             	cmp    %rdx,%rbx
   b:	7f f3                	jg     0x0
   d:	31 c0                	xor    %eax,%eax
   f:	5b                   	pop    %rbx
  10:	5d                   	pop    %rbp
  11:	41 5c                	pop    %r12
  13:	c3                   	ret
  14:	0f                   	.byte 0xf
  15:	1f                   	(bad)


The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20250723/202507231021.dcf24373-lkp@intel.com



-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki


Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ