====================================== | [ 181.227107][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 181.227322][ C0] | [ 181.227404][ C0] | [ 181.227404][ C0] stack backtrace: [ 181.227993][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 181.228600][ C0] Call Trace: [ 181.228736][ C0] [ 181.228838][ C0] dump_stack_lvl (lib/dump_stack.c:117) [ 181.229024][ C0] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) [ 181.229253][ C0] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 181.229432][ C0] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) [ 181.229664][ C0] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 181.229844][ C0] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 181.230026][ C0] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 181.230205][ C0] mark_lock_irq (kernel/locking/lockdep.c:4244) [ 181.230390][ C0] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) [ 181.230687][ C0] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 181.230868][ C0] ? save_trace (kernel/locking/lockdep.c:586) [ 181.231055][ C0] mark_lock (kernel/locking/lockdep.c:4678) [ 181.231186][ C0] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 181.231363][ C0] mark_usage (kernel/locking/lockdep.c:4567) [ 181.231605][ C0] __lock_acquire (kernel/locking/lockdep.c:5091) [ 181.231784][ C0] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 181.231967][ C0] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) [ 181.232134][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 181.232407][ C0] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 181.232595][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 181.232770][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 181.232936][ C0] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 181.233228][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 181.233408][ C0] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 181.233588][ C0] _raw_write_lock (./include/linux/rwlock_api_smp.h:210 kernel/locking/spinlock.c:300) [ 181.233774][ C0] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 181.233938][ C0] addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 181.234224][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 181.234416][ C0] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) [ 181.234595][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) [ 181.234768][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 181.235051][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) [ 181.235225][ C0] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) [ 181.235408][ C0] call_timer_fn (kernel/time/timer.c:1793) [ 181.235579][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) [ 181.235867][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) [ 181.236046][ C0] ? __pfx_call_timer_fn (kernel/time/timer.c:1770) [ 181.236339][ C0] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 181.236510][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 181.236905][ C0] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418) [ 181.237195][ C0] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) [ 181.237501][ C0] ? __pfx___run_timers (kernel/time/timer.c:2389) [ 181.237670][ C0] ? 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) [ 181.237848][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 181.238020][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 181.238194][ C0] ? run_timer_softirq (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) [ 181.238376][ C0] run_timer_softirq (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) [ 181.238550][ C0] __do_softirq (kernel/softirq.c:554) [ 181.238726][ C0] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) [ 181.238858][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) [ 181.239041][ C0] [ 181.239134][ C0] [ 181.239220][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) [ 181.239442][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) [ 181.239681][ C0] Code: 10 e8 11 39 9b fd 48 89 ef e8 49 a9 9b 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 ae 0f 68 <74> 0e 5b 5d c3 cc cc cc cc e8 3f a3 be fd eb dc 0f 1f 44 00 00 5b All code ======== 0: 10 e8 adc %ch,%al 2: 11 39 adc %edi,(%rcx) 4: 9b fwait 5: fd std 6: 48 89 ef mov %rbp,%rdi 9: e8 49 a9 9b fd call 0xfffffffffd9ba957 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 ae 0f 68 decl %gs:0x680faef5(%rip) # 0x680faf1f 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 3f a3 be fd call 0xfffffffffdbea377 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 3f a3 be fd call 0xfffffffffdbea34d e: eb dc jmp 0xffffffffffffffec 10: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 15: 5b pop %rbx [ 181.240291][ C0] RSP: 0018:ffffc9000063f0b0 EFLAGS: 00000282 [ 181.240501][ C0] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff3628320 [ 181.240760][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff97f41921 [ 181.241130][ C0] RBP: ffff888001041080 R08: 0000000000000001 R09: fffffbfff3623caf [ 181.241393][ C0] R10: ffffffff9b11e57f R11: 0000000000001000 R12: ffff888001041080 [ 181.241669][ C0] R13: ffffea00001bba00 R14: ffff8880010433c0 R15: ffff888006eec000 [ 181.242032][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) [ 181.242255][ C0] get_partial_node.part.0 (mm/slub.c:2623) [ 181.242439][ C0] ___slab_alloc (mm/slub.c:2583 mm/slub.c:2701 mm/slub.c:3505) [ 181.242616][ C0] ? fs_reclaim_acquire (mm/page_alloc.c:3715 mm/page_alloc.c:3706) [ 181.242913][ C0] ? p9_fcall_init (net/9p/client.c:232) [ 181.243083][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 181.243265][ C0] ? p9_fcall_init (net/9p/client.c:232) [ 181.243438][ C0] ? __kmalloc (mm/slub.c:3610 mm/slub.c:3663 mm/slub.c:3835 mm/slub.c:3965 mm/slub.c:3979) [ 181.243721][ C0] __kmalloc (mm/slub.c:3610 mm/slub.c:3663 mm/slub.c:3835 mm/slub.c:3965 mm/slub.c:3979) [ 181.243857][ C0] p9_fcall_init (net/9p/client.c:232) [ 181.244026][ C0] p9_tag_alloc (net/9p/client.c:295) [ 181.244190][ C0] ? __pfx_p9_tag_alloc (net/9p/client.c:277) [ 181.244486][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 181.244626][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 181.244801][ C0] p9_client_prepare_req (net/9p/client.c:641) [ 181.244968][ C0] ? __pfx_p9_client_prepare_req (net/9p/client.c:625) [ 181.245190][ C0] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 181.245493][ C0] p9_client_rpc (net/9p/client.c:688 (discriminator 4)) [ 181.245664][ C0] ? 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) [ 181.245842][ C0] ? __pfx_p9_client_rpc (net/9p/client.c:672) [ 181.246015][ C0] ? v9fs_fid_find (fs/9p/fid.c:114) [ 181.246200][ C0] ? 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) [ 181.246393][ C0] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 181.246571][ C0] ? __pfx_v9fs_fid_find (fs/9p/fid.c:114) [ 181.246746][ C0] ? __pfx_make_vfsgid (fs/mnt_idmapping.c:110) [ 181.246930][ C0] ? v9fs_fid_add (fs/9p/fid.c:41) [ 181.247109][ C0] p9_client_readlink (net/9p/client.c:2238) [ 181.247289][ C0] v9fs_vfs_get_link_dotl (fs/9p/vfs_inode_dotl.c:822 fs/9p/vfs_inode_dotl.c:806) [ 181.247588][ C0] ? __pfx_v9fs_vfs_get_link_dotl (fs/9p/vfs_inode_dotl.c:809) [ 181.247811][ C0] ? __lookup_slow (fs/namei.c:1692) [ 181.247993][ C0] pick_link (fs/namei.c:1808) [ 181.248238][ C0] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 181.248418][ C0] step_into (fs/namei.c:1874) [ 181.248551][ C0] ? __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) [ 181.248822][ C0] ? __pfx_step_into (fs/namei.c:1839) [ 181.248997][ C0] ? walk_component (fs/namei.c:2005) [ 181.249167][ C0] link_path_walk.part.0.constprop.0 (fs/namei.c:2331) [ 181.249387][ C0] ? __pfx_link_path_walk.part.0.constprop.0 (fs/namei.c:2249) [ 181.249805][ C0] path_openat (fs/namei.c:3795) [ 181.249981][ C0] ? __pfx_path_openat (fs/namei.c:3781) [ 181.250154][ C0] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 181.250331][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 181.250572][ C0] do_filp_open (fs/namei.c:3826) [ 181.250747][ C0] ? __pfx_do_filp_open (fs/namei.c:3820) [ 181.250928][ C0] ? queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:109 ./include/linux/atomic/atomic-arch-fallback.h:2018 ./include/linux/atomic/atomic-instrumented.h:1196 ./arch/x86/include/asm/qspinlock.h:100 kernel/locking/qspinlock.c:327) [ 181.251107][ C0] ? __create_object (mm/kmemleak.c:756) [ 181.251405][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 181.251579][ C0] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 181.251747][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274) [ 181.251926][ C0] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 181.252140][ C0] do_open_execat (fs/exec.c:930) [ 181.252341][ C0] ? __pfx_do_open_execat (fs/exec.c:913) [ 181.252527][ C0] ? kmem_cache_alloc (mm/slub.c:3858) [ 181.252701][ C0] ? getname_kernel (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 fs/namei.c:251) [ 181.252884][ C0] open_exec (fs/exec.c:974) [ 181.253124][ C0] load_elf_binary (fs/binfmt_elf.c:894) [ 181.253294][ C0] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 181.253457][ C0] ? __lock_release (kernel/locking/lockdep.c:5430) [ 181.253630][ C0] ? search_binary_handler (fs/exec.c:1778) [ 181.253924][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 181.254099][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 181.254279][ C0] ? __pfx_load_elf_binary (fs/binfmt_elf.c:820) [ 181.254564][ C0] ? search_binary_handler (fs/exec.c:1778) [ 181.254744][ C0] search_binary_handler (fs/exec.c:1778) [ 181.254916][ C0] ? __pfx_search_binary_handler (fs/exec.c:1757) [ 181.255135][ C0] ? __task_pid_nr_ns (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 kernel/pid.c:514) [ 181.255312][ C0] ? exec_binprm (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 fs/exec.c:1812) [ 181.255605][ C0] exec_binprm (fs/exec.c:1821) [ 181.255779][ C0] bprm_execve (fs/exec.c:1872 fs/exec.c:1848) [ 181.255908][ C0] do_execveat_common.isra.0 (fs/exec.c:1979) [ 181.256084][ C0] ? getname_flags (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 fs/namei.c:190) [ 181.256261][ C0] __x64_sys_execve (fs/exec.c:2124) [ 181.256531][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 181.256700][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 181.256909][ C0] RIP: 0033:0x7f532f03940b [ 181.257082][ C0] Code: c0 75 03 5f ff e7 c3 48 8b 0d f1 a9 1b 00 f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 80 00 00 00 00 f3 0f 1e fa b8 3b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c5 a9 1b 00 f7 d8 64 89 01 48 All code ======== 0: c0 75 03 5f shlb $0x5f,0x3(%rbp) 4: ff e7 jmp *%rdi 6: c3 ret 7: 48 8b 0d f1 a9 1b 00 mov 0x1ba9f1(%rip),%rcx # 0x1ba9ff e: f7 d8 neg %eax 10: 64 89 01 mov %eax,%fs:(%rcx) 13: 48 83 c8 ff or $0xffffffffffffffff,%rax 17: c3 ret 18: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 1f: f3 0f 1e fa endbr64 23: b8 3b 00 00 00 mov $0x3b,%eax 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 8b 0d c5 a9 1b 00 mov 0x1ba9c5(%rip),%rcx # 0x1ba9ff 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 73 01 jae 0x9 8: c3 ret 9: 48 8b 0d c5 a9 1b 00 mov 0x1ba9c5(%rip),%rcx # 0x1ba9d5 10: f7 d8 neg %eax 12: 64 89 01 mov %eax,%fs:(%rcx) 15: 48 rex.W [ 181.257815][ C0] RSP: 002b:00007fff56736de8 EFLAGS: 00000202 ORIG_RAX: 000000000000003b [ 181.258082][ C0] RAX: ffffffffffffffda RBX: 000055cc7f45c070 RCX: 00007f532f03940b [ 181.258335][ C0] RDX: 000055cc7f45b300 RSI: 000055cc7f4752b0 RDI: 000055cc7f473200 [ 181.258588][ C0] RBP: 00007fff56736f10 R08: 00000000ffffffff R09: 0000000000000000 [ 181.258847][ C0] R10: 00007fff56736db0 R11: 0000000000000202 R12: 000055cc7f48b870 Finger prints: dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage