====================================== | [ 30.420913][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 30.421109][ C1] | [ 30.421188][ C1] | [ 30.421188][ C1] stack backtrace: [ 30.421705][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 30.422058][ C1] Call Trace: [ 30.422192][ C1] [ 30.422275][ C1] dump_stack_lvl (lib/dump_stack.c:117) [ 30.422522][ C1] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) [ 30.422718][ C1] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 30.422885][ C1] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) [ 30.423080][ C1] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 30.423329][ C1] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 30.423490][ C1] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 30.423650][ C1] mark_lock_irq (kernel/locking/lockdep.c:4244) [ 30.423808][ C1] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) [ 30.423967][ C1] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 30.424126][ C1] ? save_trace (kernel/locking/lockdep.c:586) [ 30.424286][ C1] mark_lock (kernel/locking/lockdep.c:4678) [ 30.424403][ C1] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 30.424647][ C1] mark_usage (kernel/locking/lockdep.c:4567) [ 30.424771][ C1] __lock_acquire (kernel/locking/lockdep.c:5091) [ 30.424930][ C1] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 30.425087][ C1] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) [ 30.425245][ C1] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 30.425490][ C1] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 30.425654][ C1] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 30.425813][ C1] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 30.425969][ C1] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 30.426214][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 30.426371][ C1] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 30.426525][ C1] _raw_write_lock (./include/linux/rwlock_api_smp.h:210 kernel/locking/spinlock.c:300) [ 30.426682][ C1] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 30.426925][ C1] addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 30.427080][ C1] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 30.427239][ C1] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) [ 30.427395][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) [ 30.427550][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 30.427797][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) [ 30.427952][ C1] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) [ 30.428107][ C1] call_timer_fn (kernel/time/timer.c:1793) [ 30.428263][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) [ 30.428504][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) [ 30.428675][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1770) [ 30.428832][ C1] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 30.428955][ C1] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418) [ 30.429203][ C1] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) [ 30.429364][ C1] ? __pfx___run_timers (kernel/time/timer.c:2389) [ 30.429521][ C1] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:115 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) [ 30.429679][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 30.429842][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 30.430000][ C1] ? run_timer_softirq (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) [ 30.430158][ C1] run_timer_softirq (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) [ 30.430318][ C1] __do_softirq (kernel/softirq.c:554) [ 30.430477][ C1] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) [ 30.430688][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) [ 30.430845][ C1] [ 30.430925][ C1] [ 30.431004][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) [ 30.431199][ C1] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) [ 30.431496][ C1] Code: 10 e8 81 21 79 fd 48 89 ef e8 b9 91 79 fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d f5 7b 8d 5f <74> 0e 5b 5d c3 cc cc cc cc e8 0f f0 9c fd eb dc 0f 1f 44 00 00 5b All code ======== 0: 10 e8 adc %ch,%al 2: 81 21 79 fd 48 89 andl $0x8948fd79,(%rcx) 8: ef out %eax,(%dx) 9: e8 b9 91 79 fd call 0xfffffffffd7991c7 e: 81 e3 00 02 00 00 and $0x200,%ebx 14: 75 1d jne 0x33 16: 9c pushf 17: 58 pop %rax 18: f6 c4 02 test $0x2,%ah 1b: 75 29 jne 0x46 1d: 48 85 db test %rbx,%rbx 20: 74 01 je 0x23 22: fb sti 23: 65 ff 0d f5 7b 8d 5f decl %gs:0x5f8d7bf5(%rip) # 0x5f8d7c1f 2a:* 74 0e je 0x3a <-- trapping instruction 2c: 5b pop %rbx 2d: 5d pop %rbp 2e: c3 ret 2f: cc int3 30: cc int3 31: cc int3 32: cc int3 33: e8 0f f0 9c fd call 0xfffffffffd9cf047 38: eb dc jmp 0x16 3a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 3f: 5b pop %rbx Code starting with the faulting instruction =========================================== 0: 74 0e je 0x10 2: 5b pop %rbx 3: 5d pop %rbp 4: c3 ret 5: cc int3 6: cc int3 7: cc int3 8: cc int3 9: e8 0f f0 9c fd call 0xfffffffffd9cf01d e: eb dc jmp 0xffffffffffffffec 10: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 15: 5b pop %rbx [ 30.432054][ C1] RSP: 0018:ffffc90000f6f778 EFLAGS: 00000286 [ 30.432346][ C1] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff44722d9 [ 30.432581][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa0764de1 [ 30.432816][ C1] RBP: ffffffffa1b3fac0 R08: 0000000000000001 R09: fffffbfff4472b5a [ 30.433049][ C1] R10: ffffffffa2395ad7 R11: ffffc90000f6f451 R12: 0000000000000000 [ 30.433290][ C1] R13: 0000000000000246 R14: ffff8880044b93c0 R15: 0000000000000000 [ 30.433704][ C1] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) [ 30.433899][ C1] delete_object_full (mm/kmemleak.c:817) [ 30.434056][ C1] kmem_cache_free (./include/linux/kmemleak.h:48 mm/slub.c:2072 mm/slub.c:4280 mm/slub.c:4344) [ 30.434213][ C1] ? p9_req_put (net/9p/client.c:410) [ 30.434457][ C1] p9_req_put (net/9p/client.c:410) [ 30.434576][ C1] p9_client_readlink (net/9p/client.c:2251) [ 30.434732][ C1] v9fs_vfs_get_link_dotl (fs/9p/vfs_inode_dotl.c:822 fs/9p/vfs_inode_dotl.c:806) [ 30.434894][ C1] ? __pfx_v9fs_vfs_get_link_dotl (fs/9p/vfs_inode_dotl.c:809) [ 30.435089][ C1] ? __lookup_slow (fs/namei.c:1692) [ 30.435337][ C1] pick_link (fs/namei.c:1808) [ 30.435454][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 30.435612][ C1] step_into (fs/namei.c:1874) [ 30.435737][ C1] ? __up_read (./arch/x86/include/asm/atomic64_64.h:79 ./include/linux/atomic/atomic-arch-fallback.h:2749 ./include/linux/atomic/atomic-long.h:184 ./include/linux/atomic/atomic-instrumented.h:3317 kernel/locking/rwsem.c:1347) [ 30.435893][ C1] ? __pfx_step_into (fs/namei.c:1839) [ 30.436058][ C1] ? walk_component (fs/namei.c:2005) [ 30.436219][ C1] link_path_walk.part.0.constprop.0 (fs/namei.c:2331) [ 30.436415][ C1] ? __pfx_link_path_walk.part.0.constprop.0 (fs/namei.c:2249) [ 30.436701][ C1] path_openat (fs/namei.c:3795) [ 30.436857][ C1] ? __pfx_path_openat (fs/namei.c:3781) [ 30.437012][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 30.437169][ C1] do_filp_open (fs/namei.c:3826) [ 30.437414][ C1] ? __pfx_do_filp_open (fs/namei.c:3820) [ 30.437570][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 30.437727][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 30.437886][ C1] ? alloc_fd (fs/file.c:555 (discriminator 10)) [ 30.438005][ C1] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 30.438248][ C1] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 30.438406][ C1] ? alloc_fd (fs/file.c:555 (discriminator 10)) [ 30.438526][ C1] do_sys_openat2 (fs/open.c:1406) [ 30.438713][ C1] ? vfs_fstatat (fs/stat.c:308) [ 30.438957][ C1] ? __pfx_do_sys_openat2 (fs/open.c:1392) [ 30.439114][ C1] ? __pfx___do_sys_newfstatat (fs/stat.c:464) [ 30.439276][ C1] __x64_sys_openat (fs/open.c:1432) [ 30.439435][ C1] ? __pfx___x64_sys_openat (fs/open.c:1432) [ 30.439591][ C1] ? __pfx_do_faccessat (fs/open.c:465) [ 30.439845][ C1] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 30.440004][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 30.440195][ C1] RIP: 0033:0x7f1ac908c0e8 [ 30.440357][ C1] Code: f9 41 89 f0 41 83 e2 40 75 30 89 f0 25 00 00 41 00 3d 00 00 41 00 74 22 44 89 c2 4c 89 ce bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 30 c3 0f 1f 80 00 00 00 00 48 8d 44 24 08 c7 All code ======== 0: f9 stc 1: 41 89 f0 mov %esi,%r8d 4: 41 83 e2 40 and $0x40,%r10d 8: 75 30 jne 0x3a a: 89 f0 mov %esi,%eax c: 25 00 00 41 00 and $0x410000,%eax 11: 3d 00 00 41 00 cmp $0x410000,%eax 16: 74 22 je 0x3a 18: 44 89 c2 mov %r8d,%edx 1b: 4c 89 ce mov %r9,%rsi 1e: bf 9c ff ff ff mov $0xffffff9c,%edi 23: b8 01 01 00 00 mov $0x101,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 30 ja 0x62 32: c3 ret 33: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 3a: 48 8d 44 24 08 lea 0x8(%rsp),%rax 3f: c7 .byte 0xc7 Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 30 ja 0x38 8: c3 ret 9: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 10: 48 8d 44 24 08 lea 0x8(%rsp),%rax 15: c7 .byte 0xc7 [ 30.441003][ C1] RSP: 002b:00007ffed596c1d8 EFLAGS: 00000287 ORIG_RAX: 0000000000000101 [ 30.441337][ C1] RAX: ffffffffffffffda RBX: 00007ffed596c46f RCX: 00007f1ac908c0e8 [ 30.441570][ C1] RDX: 0000000000080000 RSI: 00007ffed596c250 RDI: 00000000ffffff9c [ 30.441804][ C1] RBP: 00007ffed596c240 R08: 0000000000080000 R09: 00007ffed596c250 [ 30.442040][ C1] R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffed596c257 Finger prints: dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage