pkg/report: properly attribute stalls in tasklet's

1 files changed, 185 insertions, 0 deletions

diff --git a/pkg/report/testdata/linux/report/538 b/pkg/report/testdata/linux/report/538
new file mode 100644
index 000000000..4602dc9f4
--- /dev/null
+++ b/pkg/report/testdata/linux/report/538
@@ -0,0 +1,185 @@
+TITLE: BUG: soft lockup in ieee80211_tasklet_handler
+TYPE: HANG
+
+[  516.671899][    C1] watchdog: BUG: soft lockup - CPU#1 stuck for 134s! [syz-executor.3:16401]
+[  516.680923][    C1] Modules linked in:
+[  516.684831][    C1] irq event stamp: 35791815
+[  516.689372][    C1] hardirqs last  enabled at (35791814): [<ffffffff89000d42>] asm_sysvec_irq_work+0x12/0x20
+[  516.699541][    C1] hardirqs last disabled at (35791815): [<ffffffff88e55bbc>] sysvec_apic_timer_interrupt+0xc/0x100
+[  516.710377][    C1] softirqs last  enabled at (27194592): [<ffffffff89000eaf>] asm_call_irq_on_stack+0xf/0x20
+[  516.720433][    C1] softirqs last disabled at (27194595): [<ffffffff89000eaf>] asm_call_irq_on_stack+0xf/0x20
+[  516.731179][    C1] CPU: 1 PID: 16401 Comm: syz-executor.3 Not tainted 5.10.0-rc6-syzkaller #0
+[  516.739924][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  516.750065][    C1] RIP: 0010:__sanitizer_cov_trace_switch+0xe/0x70
+[  516.756468][    C1] Code: 48 89 f2 48 89 fe bf 07 00 00 00 e9 8c fe ff ff 66 90 66 2e 0f 1f 84 00 00 00 00 00 41 54 48 89 fa 55 48 89 f5 53 48 8b 46 08 <48> 83 f8 20 74 52 77 39 48 83 f8 08 74 43 48 83 f8 10 75 28 bf 03
+[  516.776268][    C1] RSP: 0018:ffffc90000d909e8 EFLAGS: 00000246
+[  516.782452][    C1] RAX: 0000000000000020 RBX: ffff88802767c85a RCX: ffffffff83b5e925
+[  516.790411][    C1] RDX: 0000000000000006 RSI: ffffffff899d4fc0 RDI: 0000000000000006
+[  516.798456][    C1] RBP: ffffffff899d4fc0 R08: 000000006581e33e R09: ffffffff8ebae667
+[  516.806590][    C1] R10: 000000000000000c R11: 0000000000000001 R12: 0000000000000006
+[  516.814548][    C1] R13: 00000000442fa233 R14: 00000000442fa233 R15: 00000000442fa233
+[  516.822638][    C1] FS:  00007f8f30af8700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
+[  516.831729][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  516.838301][    C1] CR2: 0000000020eb4000 CR3: 000000001d519000 CR4: 0000000000350ee0
+[  516.846256][    C1] Call Trace:
+[  516.849610][    C1]  <IRQ>
+[  516.852462][    C1]  jhash+0x1d7/0x5d0
+[  516.856438][    C1]  __rhashtable_lookup+0x22b/0x780
+[  516.897170][    C1]  sta_info_get_bss+0x144/0x3f0
+[  516.911609][    C1]  ieee80211_rx_list+0xdd3/0x23d0
+[  516.938278][    C1]  ieee80211_rx_napi+0xf7/0x3d0
+[  516.954196][    C1]  ieee80211_tasklet_handler+0xd3/0x130
+[  516.959733][    C1]  tasklet_action_common.constprop.0+0x22f/0x2d0
+[  516.966051][    C1]  __do_softirq+0x2a0/0x9f6
+[  516.970547][    C1]  asm_call_irq_on_stack+0xf/0x20
+[  516.975552][    C1]  </IRQ>
+[  516.978481][    C1]  do_softirq_own_stack+0xaa/0xd0
+[  516.983491][    C1]  irq_exit_rcu+0x132/0x200
+[  516.987990][    C1]  sysvec_apic_timer_interrupt+0x4d/0x100
+[  516.993697][    C1]  asm_sysvec_apic_timer_interrupt+0x12/0x20
+[  516.999663][    C1] RIP: 0010:preempt_schedule_irq+0x49/0x90
+[  517.005454][    C1] Code: 55 53 65 48 8b 1c 25 00 f0 01 00 48 89 dd 48 c1 ed 03 48 01 c5 bf 01 00 00 00 e8 e2 6c 64 f8 e8 ad d2 8e f8 fb bf 01 00 00 00 <e8> 82 d1 ff ff 9c 58 fa f6 c4 02 75 27 bf 01 00 00 00 e8 50 55 64
+[  517.025042][    C1] RSP: 0018:ffffc900040af818 EFLAGS: 00000206
+[  517.031098][    C1] RAX: 00000000019ef4e1 RBX: ffff8880246ecec0 RCX: ffffffff8155a937
+[  517.039054][    C1] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
+[  517.047016][    C1] RBP: ffffed10048dd9d8 R08: 0000000000000001 R09: ffffffff8ebae70f
+[  517.054973][    C1] R10: fffffbfff1d75ce1 R11: 0000000000000001 R12: 0000000000000000
+[  517.063129][    C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
+[  517.080975][    C1]  irqentry_exit+0x7a/0xa0
+[  517.085464][    C1]  asm_sysvec_apic_timer_interrupt+0x12/0x20
+[  517.091434][    C1] RIP: 0010:preempt_schedule_common+0x19/0xc0
+[  517.097575][    C1] Code: 9b ca f8 e9 78 ff ff ff 66 0f 1f 84 00 00 00 00 00 41 55 41 54 49 bc 00 00 00 00 00 fc ff df 55 53 65 48 8b 1c 25 00 f0 01 00 <48> 89 dd 48 c1 ed 03 4c 01 e5 65 ff 05 26 08 1b 77 65 8b 05 1f 08
+[  517.117428][    C1] RSP: 0018:ffffc900040af8e8 EFLAGS: 00000202
+[  517.123487][    C1] RAX: 0000000000000246 RBX: ffff8880246ecec0 RCX: 0000000000000000
+[  517.131444][    C1] RDX: 0000000000000001 RSI: 0000000000000001 RDI: 0000000000000001
+[  517.139488][    C1] RBP: ffffc900040af958 R08: 0000000000000003 R09: ffffffff8ebae70f
+[  517.147447][    C1] R10: fffffbfff1d75ce1 R11: 0000000000000000 R12: dffffc0000000000
+[  517.155403][    C1] R13: 00000000000382b0 R14: 0000000000000297 R15: 0000000000000001
+[  517.163473][    C1]  preempt_schedule_thunk+0x16/0x18
+[  517.168997][    C1]  put_cpu_partial+0x138/0x200
+[  517.173772][    C1]  qlist_free_all+0x5a/0xc0
+[  517.178279][    C1]  quarantine_reduce+0x17e/0x200
+[  517.183217][    C1]  __kasan_kmalloc.constprop.0+0x9e/0xd0
+[  517.193357][    C1]  kmem_cache_alloc_node+0x13b/0x490
+[  517.198653][    C1]  __alloc_skb+0x71/0x550
+[  517.202995][    C1]  sk_stream_alloc_skb+0x109/0xc30
+[  517.208455][    C1]  tcp_sendmsg_locked+0xbb7/0x2d20
+[  517.228136][    C1]  tcp_sendmsg+0x2b/0x40
+[  517.232377][    C1]  inet_sendmsg+0x99/0xe0
+[  517.241996][    C1]  sock_sendmsg+0xcf/0x120
+[  517.246415][    C1]  __sys_sendto+0x21c/0x320
+[  517.281952][    C1]  __x64_sys_sendto+0xdd/0x1b0
+[  517.297945][    C1]  do_syscall_64+0x2d/0x70
+[  517.302373][    C1]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
+[  517.308265][    C1] RIP: 0033:0x45deb9
+[  517.312153][    C1] Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
+[  517.331754][    C1] RSP: 002b:00007f8f30af7c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
+[  517.340430][    C1] RAX: ffffffffffffffda RBX: 000000000002ea00 RCX: 000000000045deb9
+[  517.348493][    C1] RDX: ffffffffffffffef RSI: 0000000020d7cfcb RDI: 0000000000000005
+[  517.356820][    C1] RBP: 000000000119bf78 R08: 0000000000000000 R09: 0000000009000000
+[  517.364797][    C1] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf2c
+[  517.372765][    C1] R13: 00007ffdae49d00f R14: 00007f8f30af89c0 R15: 000000000119bf2c
+[  517.380742][    C1] Sending NMI from CPU 1 to CPUs 0:
+[  517.386188][    C0] NMI backtrace for cpu 0
+[  517.386194][    C0] CPU: 0 PID: 10 Comm: ksoftirqd/0 Not tainted 5.10.0-rc6-syzkaller #0
+[  517.386199][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  517.386202][    C0] RIP: 0010:pvclock_clocksource_read+0x6b/0x510
+[  517.386211][    C0] Code: c0 0f 95 c0 84 c1 0f 85 80 04 00 00 4c 89 e0 83 e0 07 38 c2 0f 9e c1 84 d2 0f 95 c0 84 c1 0f 85 68 04 00 00 48 8d 43 08 8b 0b <48> bd 00 00 00 00 00 fc ff df 48 8d 7b 1c 48 89 44 24 08 48 c1 e8
+[  517.386214][    C0] RSP: 0018:ffffc90000cf7ce0 EFLAGS: 00000046
+[  517.386222][    C0] RAX: ffffffff8e48d008 RBX: ffffffff8e48d000 RCX: 0000000000000008
+[  517.386226][    C0] RDX: 0000000000000000 RSI: 0000000000000100 RDI: ffffffff8e48d000
+[  517.386230][    C0] RBP: ffff888010d69a40 R08: 0000000000000000 R09: ffff888010d69a47
+[  517.386234][    C0] R10: ffffed10021ad348 R11: 0000000000000001 R12: ffffffff8e48d003
+[  517.386238][    C0] R13: 0000000000000038 R14: 0000000000000006 R15: 0000000000000040
+[  517.386242][    C0] FS:  0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
+[  517.386246][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+[  517.386250][    C0] CR2: 0000563fcd9200c8 CR3: 00000000142dc000 CR4: 0000000000350ef0
+[  517.386252][    C0] Call Trace:
+[  517.386255][    C0]  kvm_sched_clock_read+0x14/0x40
+[  517.386258][    C0]  sched_clock+0x2a/0x40
+[  517.386260][    C0]  sched_clock_cpu+0x18/0x1f0
+[  517.386263][    C0]  irqtime_account_irq+0x71/0x2d0
+[  517.386266][    C0]  __do_softirq+0x5e0/0x9f6
+[  517.386272][    C0]  run_ksoftirqd+0x2d/0x50
+[  517.386274][    C0]  smpboot_thread_fn+0x655/0x9e0
+[  517.386286][    C0]  kthread+0x3b1/0x4a0
+[  517.386292][    C0]  ret_from_fork+0x1f/0x30
+[  517.386957][    C1] Kernel panic - not syncing: softlockup: hung tasks
+[  517.585655][    C1] CPU: 1 PID: 16401 Comm: syz-executor.3 Tainted: G             L    5.10.0-rc6-syzkaller #0
+[  517.595790][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  517.605931][    C1] Call Trace:
+[  517.609207][    C1]  <IRQ>
+[  517.612054][    C1]  dump_stack+0x107/0x163
+[  517.616376][    C1]  panic+0x306/0x73d
+[  517.644735][    C1]  watchdog_timer_fn.cold+0x16/0x25
+[  517.655901][    C1]  __hrtimer_run_queues+0x1ce/0xea0
+[  517.673151][    C1]  hrtimer_interrupt+0x334/0x940
+[  517.678212][    C1]  __sysvec_apic_timer_interrupt+0x146/0x540
+[  517.684192][    C1]  sysvec_apic_timer_interrupt+0x48/0x100
+[  517.689907][    C1]  asm_sysvec_apic_timer_interrupt+0x12/0x20
+[  517.695879][    C1] RIP: 0010:__sanitizer_cov_trace_switch+0xe/0x70
+[  517.702285][    C1] Code: 48 89 f2 48 89 fe bf 07 00 00 00 e9 8c fe ff ff 66 90 66 2e 0f 1f 84 00 00 00 00 00 41 54 48 89 fa 55 48 89 f5 53 48 8b 46 08 <48> 83 f8 20 74 52 77 39 48 83 f8 08 74 43 48 83 f8 10 75 28 bf 03
+[  517.721895][    C1] RSP: 0018:ffffc90000d909e8 EFLAGS: 00000246
+[  517.727959][    C1] RAX: 0000000000000020 RBX: ffff88802767c85a RCX: ffffffff83b5e925
+[  517.736401][    C1] RDX: 0000000000000006 RSI: ffffffff899d4fc0 RDI: 0000000000000006
+[  517.744458][    C1] RBP: ffffffff899d4fc0 R08: 000000006581e33e R09: ffffffff8ebae667
+[  517.752612][    C1] R10: 000000000000000c R11: 0000000000000001 R12: 0000000000000006
+[  517.761208][    C1] R13: 00000000442fa233 R14: 00000000442fa233 R15: 00000000442fa233
+[  517.773436][    C1]  jhash+0x1d7/0x5d0
+[  517.777329][    C1]  __rhashtable_lookup+0x22b/0x780
+[  517.817792][    C1]  sta_info_get_bss+0x144/0x3f0
+[  517.832841][    C1]  ieee80211_rx_list+0xdd3/0x23d0
+[  517.859140][    C1]  ieee80211_rx_napi+0xf7/0x3d0
+[  517.874967][    C1]  ieee80211_tasklet_handler+0xd3/0x130
+[  517.880508][    C1]  tasklet_action_common.constprop.0+0x22f/0x2d0
+[  517.886828][    C1]  __do_softirq+0x2a0/0x9f6
+[  517.891328][    C1]  asm_call_irq_on_stack+0xf/0x20
+[  517.896333][    C1]  </IRQ>
+[  517.899261][    C1]  do_softirq_own_stack+0xaa/0xd0
+[  517.904272][    C1]  irq_exit_rcu+0x132/0x200
+[  517.908768][    C1]  sysvec_apic_timer_interrupt+0x4d/0x100
+[  517.914650][    C1]  asm_sysvec_apic_timer_interrupt+0x12/0x20
+[  517.920619][    C1] RIP: 0010:preempt_schedule_irq+0x49/0x90
+[  517.926409][    C1] Code: 55 53 65 48 8b 1c 25 00 f0 01 00 48 89 dd 48 c1 ed 03 48 01 c5 bf 01 00 00 00 e8 e2 6c 64 f8 e8 ad d2 8e f8 fb bf 01 00 00 00 <e8> 82 d1 ff ff 9c 58 fa f6 c4 02 75 27 bf 01 00 00 00 e8 50 55 64
+[  517.946001][    C1] RSP: 0018:ffffc900040af818 EFLAGS: 00000206
+[  517.952230][    C1] RAX: 00000000019ef4e1 RBX: ffff8880246ecec0 RCX: ffffffff8155a937
+[  517.960186][    C1] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
+[  517.968145][    C1] RBP: ffffed10048dd9d8 R08: 0000000000000001 R09: ffffffff8ebae70f
+[  517.976278][    C1] R10: fffffbfff1d75ce1 R11: 0000000000000001 R12: 0000000000000000
+[  517.984236][    C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
+[  518.001800][    C1]  irqentry_exit+0x7a/0xa0
+[  518.006202][    C1]  asm_sysvec_apic_timer_interrupt+0x12/0x20
+[  518.012172][    C1] RIP: 0010:preempt_schedule_common+0x19/0xc0
+[  518.018226][    C1] Code: 9b ca f8 e9 78 ff ff ff 66 0f 1f 84 00 00 00 00 00 41 55 41 54 49 bc 00 00 00 00 00 fc ff df 55 53 65 48 8b 1c 25 00 f0 01 00 <48> 89 dd 48 c1 ed 03 4c 01 e5 65 ff 05 26 08 1b 77 65 8b 05 1f 08
+[  518.038076][    C1] RSP: 0018:ffffc900040af8e8 EFLAGS: 00000202
+[  518.044130][    C1] RAX: 0000000000000246 RBX: ffff8880246ecec0 RCX: 0000000000000000
+[  518.052354][    C1] RDX: 0000000000000001 RSI: 0000000000000001 RDI: 0000000000000001
+[  518.060317][    C1] RBP: ffffc900040af958 R08: 0000000000000003 R09: ffffffff8ebae70f
+[  518.068277][    C1] R10: fffffbfff1d75ce1 R11: 0000000000000000 R12: dffffc0000000000
+[  518.076501][    C1] R13: 00000000000382b0 R14: 0000000000000297 R15: 0000000000000001
+[  518.084735][    C1]  preempt_schedule_thunk+0x16/0x18
+[  518.089927][    C1]  put_cpu_partial+0x138/0x200
+[  518.094683][    C1]  qlist_free_all+0x5a/0xc0
+[  518.099349][    C1]  quarantine_reduce+0x17e/0x200
+[  518.104450][    C1]  __kasan_kmalloc.constprop.0+0x9e/0xd0
+[  518.114568][    C1]  kmem_cache_alloc_node+0x13b/0x490
+[  518.119844][    C1]  __alloc_skb+0x71/0x550
+[  518.124171][    C1]  sk_stream_alloc_skb+0x109/0xc30
+[  518.129362][    C1]  tcp_sendmsg_locked+0xbb7/0x2d20
+[  518.149451][    C1]  tcp_sendmsg+0x2b/0x40
+[  518.153687][    C1]  inet_sendmsg+0x99/0xe0
+[  518.163102][    C1]  sock_sendmsg+0xcf/0x120
+[  518.167510][    C1]  __sys_sendto+0x21c/0x320
+[  518.203064][    C1]  __x64_sys_sendto+0xdd/0x1b0
+[  518.218911][    C1]  do_syscall_64+0x2d/0x70
+[  518.223319][    C1]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
+[  518.229218][    C1] RIP: 0033:0x45deb9
+[  518.233103][    C1] Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
+[  518.252807][    C1] RSP: 002b:00007f8f30af7c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
+[  518.261210][    C1] RAX: ffffffffffffffda RBX: 000000000002ea00 RCX: 000000000045deb9
+[  518.269171][    C1] RDX: ffffffffffffffef RSI: 0000000020d7cfcb RDI: 0000000000000005
+[  518.277129][    C1] RBP: 000000000119bf78 R08: 0000000000000000 R09: 0000000009000000
+[  518.285086][    C1] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf2c
+[  518.293217][    C1] R13: 00007ffdae49d00f R14: 00007f8f30af89c0 R15: 000000000119bf2c
+[  518.304895][    C1] Kernel Offset: disabled
+[  518.309866][    C1] Rebooting in 86400 seconds..