Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported |
---|---|---|---|---|---|---|
INFO: task can't die in blk_mq_freeze_queue_wait block | 221 | 1053d | 1061d |
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[syzbot] INFO: task hung in loop_set_status | 0 (1) | 2021/11/18 15:46 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | INFO: task can't die in blk_mq_freeze_queue_wait block | 221 | 1053d | 1061d | 20/28 | fixed on 2022/03/08 16:11 |
INFO: task syz-executor.5:13368 blocked for more than 143 seconds. Not tainted 5.16.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:22448 pid:13368 ppid: 24894 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:4972 [inline] __schedule+0xb72/0x1460 kernel/sched/core.c:6253 schedule+0x12b/0x1f0 kernel/sched/core.c:6326 blk_mq_freeze_queue_wait+0x105/0x190 block/blk-mq.c:178 loop_set_status+0x183/0xa50 drivers/block/loop.c:1264 lo_ioctl+0xbc9/0x1f40 blkdev_ioctl+0x3ac/0x790 block/ioctl.c:609 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fa9011a8ae9 RSP: 002b:00007fa8fe71e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fa9012bbf60 RCX: 00007fa9011a8ae9 RDX: 0000000020000780 RSI: 0000000000004c02 RDI: 0000000000000007 RBP: 00007fa901202f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffff857d3df R14: 00007fa8fe71e300 R15: 0000000000022000 </TASK> INFO: task syz-executor.5:13372 blocked for more than 143 seconds. Not tainted 5.16.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:24496 pid:13372 ppid: 24894 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:4972 [inline] __schedule+0xb72/0x1460 kernel/sched/core.c:6253 schedule+0x12b/0x1f0 kernel/sched/core.c:6326 __bio_queue_enter+0x35a/0x690 block/blk-core.c:441 bio_queue_enter block/blk.h:91 [inline] blk_mq_get_request block/blk-mq.c:2588 [inline] blk_mq_submit_bio+0x7c9/0x2750 block/blk-mq.c:2632 __submit_bio+0x15d/0x330 block/blk-core.c:849 __submit_bio_noacct_mq block/blk-core.c:924 [inline] submit_bio_noacct+0x844/0x9e0 block/blk-core.c:950 submit_bio+0x2d2/0x520 block/blk-core.c:1011 submit_bh fs/buffer.c:3060 [inline] block_read_full_page+0xeda/0x1230 fs/buffer.c:2339 filemap_read_page+0x174/0x400 mm/filemap.c:2391 filemap_update_page mm/filemap.c:2470 [inline] filemap_get_pages+0x150f/0x1ac0 mm/filemap.c:2579 filemap_read+0x3f6/0x10f0 mm/filemap.c:2642 call_read_iter include/linux/fs.h:2156 [inline] generic_file_splice_read+0x482/0x760 fs/splice.c:311 do_splice_to fs/splice.c:796 [inline] splice_direct_to_actor+0x45f/0xd00 fs/splice.c:870 do_splice_direct+0x291/0x3e0 fs/splice.c:979 do_sendfile+0x6fe/0x1040 fs/read_write.c:1245 __do_sys_sendfile64 fs/read_write.c:1310 [inline] __se_sys_sendfile64+0x171/0x1d0 fs/read_write.c:1296 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fa9011a8ae9 RSP: 002b:00007fa8fe6fd188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fa9012bc020 RCX: 00007fa9011a8ae9 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000007 RBP: 00007fa901202f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000024002da8 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffff857d3df R14: 00007fa8fe6fd300 R15: 0000000000022000 </TASK> Showing all locks held in the system: 3 locks held by kworker/u4:0/8: #0: ffff8880b9a395d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110 kernel/sched/core.c:478 #1: ffff8880b9a27888 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x4c1/0x780 kernel/sched/psi.c:880 #2: ffff8880b9a29198 (&base->lock){-.-.}-{2:2}, at: __mod_timer+0x6d3/0xd20 kernel/time/timer.c:1043 1 lock held by khungtaskd/27: #0: ffffffff8cb1dc00 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by systemd-udevd/2973: #0: ffff88801b0c1118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfc/0xb80 block/bdev.c:819 #1: ffff88801b044b60 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_open+0x68/0x100 drivers/block/loop.c:1733 1 lock held by in:imklog/6177: #0: ffff888079331c70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:990 1 lock held by syz-executor.5/13368: #0: ffff88801b044b60 (&lo->lo_mutex){+.+.}-{3:3}, at: loop_set_status+0x2a/0xa50 drivers/block/loop.c:1248 1 lock held by syz-executor.5/13372: #0: ffff888145a7dbc8 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline] #0: ffff888145a7dbc8 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: filemap_update_page mm/filemap.c:2441 [inline] #0: ffff888145a7dbc8 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: filemap_get_pages+0x94c/0x1ac0 mm/filemap.c:2579 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106 nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline] watchdog+0xc82/0xcd0 kernel/hung_task.c:295 kthread+0x468/0x490 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 </TASK> Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 8163 Comm: kworker/u4:6 Not tainted 5.16.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: 0x0 (bat_events) RIP: 0010:__lock_acquire+0x4aa/0x2b00 kernel/locking/lockdep.c:4965 Code: 0f 44 0f b7 c0 41 83 e5 03 41 c1 e5 10 8b 4c 24 70 83 e1 01 c1 e1 12 31 d2 83 7c 24 54 00 0f 95 c2 c1 e2 13 8b 45 20 c1 e0 14 <45> 09 c5 41 09 d5 41 09 c5 41 09 cd 45 09 f5 41 09 dd 48 8b 44 24 RSP: 0018:ffffc90016977720 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000080000 RSI: dffffc0000000000 RDI: ffff888087811d00 RBP: ffffc90016977870 R08: 0000000000000000 R09: 0000000000000001 R10: fffffbfff1bfd14e R11: 0000000000000000 R12: ffff888087812744 R13: 0000000000020000 R14: 0000000000000028 R15: ffff8880878127a0 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f42bc021130 CR3: 000000000c88e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> lock_acquire+0x19f/0x4d0 kernel/locking/lockdep.c:5637 rcu_lock_acquire+0x20/0x30 include/linux/rcupdate.h:268 rcu_read_lock include/linux/rcupdate.h:688 [inline] cgroup_account_cputime include/linux/cgroup.h:794 [inline] update_curr+0x418/0xd40 kernel/sched/fair.c:877 dequeue_entity+0x27/0xd90 kernel/sched/fair.c:4337 dequeue_task_fair+0x289/0x1360 kernel/sched/fair.c:5688 dequeue_task kernel/sched/core.c:2019 [inline] deactivate_task kernel/sched/core.c:2033 [inline] __schedule+0x63c/0x1460 kernel/sched/core.c:6207 schedule+0x12b/0x1f0 kernel/sched/core.c:6326 worker_thread+0xfd5/0x1320 kernel/workqueue.c:2466 kthread+0x468/0x490 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 </TASK> ---------------- Code disassembly (best guess): 0: 0f 44 0f cmove (%rdi),%ecx 3: b7 c0 mov $0xc0,%bh 5: 41 83 e5 03 and $0x3,%r13d 9: 41 c1 e5 10 shl $0x10,%r13d d: 8b 4c 24 70 mov 0x70(%rsp),%ecx 11: 83 e1 01 and $0x1,%ecx 14: c1 e1 12 shl $0x12,%ecx 17: 31 d2 xor %edx,%edx 19: 83 7c 24 54 00 cmpl $0x0,0x54(%rsp) 1e: 0f 95 c2 setne %dl 21: c1 e2 13 shl $0x13,%edx 24: 8b 45 20 mov 0x20(%rbp),%eax 27: c1 e0 14 shl $0x14,%eax * 2a: 45 09 c5 or %r8d,%r13d <-- trapping instruction 2d: 41 09 d5 or %edx,%r13d 30: 41 09 c5 or %eax,%r13d 33: 41 09 cd or %ecx,%r13d 36: 45 09 f5 or %r14d,%r13d 39: 41 09 dd or %ebx,%r13d 3c: 48 rex.W 3d: 8b .byte 0x8b 3e: 44 rex.R 3f: 24 .byte 0x24
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/11/20 23:34 | upstream | a90af8f15bdc | 4eb20a4e | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | INFO: task hung in loop_set_status | |||
2021/11/20 12:57 | upstream | a90af8f15bdc | 4eb20a4e | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | INFO: task hung in loop_set_status | |||
2021/11/20 04:43 | upstream | 9539ba4308ad | 3a9d0024 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/20 00:47 | upstream | 9539ba4308ad | 3a9d0024 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/19 23:04 | upstream | 9539ba4308ad | 3a9d0024 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/19 21:07 | upstream | 4c388a8e740d | 3a9d0024 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | INFO: task hung in loop_set_status | |||
2021/11/19 19:16 | upstream | 4c388a8e740d | 3a9d0024 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/19 14:31 | upstream | 4c388a8e740d | 3a9d0024 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/19 06:34 | upstream | 4c388a8e740d | 31a30fc0 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/19 05:22 | upstream | 6fdf886424cf | 31a30fc0 | .config | console log | report | info | ci-upstream-kasan-gce-selinux-root | INFO: task hung in loop_set_status | |||
2021/11/18 23:29 | upstream | 6fdf886424cf | 31a30fc0 | .config | console log | report | info | ci-upstream-kasan-gce | INFO: task hung in loop_set_status | |||
2021/11/18 21:35 | upstream | 42eb8fdac2fc | 31a30fc0 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/18 17:31 | upstream | 42eb8fdac2fc | 31a30fc0 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | INFO: task hung in loop_set_status | |||
2021/11/18 14:20 | upstream | 42eb8fdac2fc | 31a30fc0 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | INFO: task hung in loop_set_status | |||
2021/11/18 07:47 | upstream | 42eb8fdac2fc | cafff8b6 | .config | console log | report | info | ci-upstream-kasan-gce | INFO: task hung in loop_set_status | |||
2021/11/18 05:13 | upstream | ee1703cda8dc | cafff8b6 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | INFO: task hung in loop_set_status | |||
2021/11/18 03:21 | upstream | ee1703cda8dc | cafff8b6 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/17 19:55 | upstream | ee1703cda8dc | cafff8b6 | .config | console log | report | info | ci-upstream-kasan-gce | INFO: task hung in loop_set_status | |||
2021/11/17 18:46 | upstream | ee1703cda8dc | cafff8b6 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/17 13:48 | upstream | 8ab774587903 | cafff8b6 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | INFO: task hung in loop_set_status | |||
2021/11/17 01:38 | upstream | 8ab774587903 | cafff8b6 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/17 00:30 | upstream | 8ab774587903 | cafff8b6 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/16 22:51 | upstream | 8ab774587903 | cafff8b6 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | INFO: task hung in loop_set_status | |||
2021/11/16 21:41 | upstream | 8ab774587903 | 600426bd | .config | console log | report | info | ci-upstream-kasan-gce | INFO: task hung in loop_set_status | |||
2021/11/16 13:38 | upstream | 8ab774587903 | 600426bd | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/16 12:13 | upstream | 8ab774587903 | 600426bd | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/16 11:11 | upstream | 8ab774587903 | 600426bd | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/16 04:34 | upstream | 8ab774587903 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/15 17:38 | upstream | 8ab774587903 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/15 16:17 | upstream | 8ab774587903 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/15 12:54 | upstream | fa55b7dcdc43 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce | INFO: task hung in loop_set_status | |||
2021/11/15 04:28 | upstream | fa55b7dcdc43 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/15 02:42 | upstream | c8c109546a19 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce | INFO: task hung in loop_set_status | |||
2021/11/15 02:33 | upstream | c8c109546a19 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce | INFO: task hung in loop_set_status | |||
2021/11/15 01:33 | upstream | c8c109546a19 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce | INFO: task hung in loop_set_status | |||
2021/11/15 01:23 | upstream | c8c109546a19 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/14 22:08 | upstream | c8c109546a19 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce | INFO: task hung in loop_set_status | |||
2021/11/14 18:32 | upstream | c8c109546a19 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce | INFO: task hung in loop_set_status | |||
2021/11/14 16:19 | upstream | c8c109546a19 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce | INFO: task hung in loop_set_status | |||
2021/11/14 15:59 | upstream | c8c109546a19 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/14 15:53 | upstream | c8c109546a19 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce | INFO: task hung in loop_set_status | |||
2021/11/14 15:42 | upstream | c8c109546a19 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce-root | INFO: task hung in loop_set_status | |||
2021/11/14 15:31 | upstream | c8c109546a19 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce | INFO: task hung in loop_set_status | |||
2021/11/14 00:50 | upstream | ccfff0a2bd2a | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | INFO: task hung in loop_set_status | |||
2021/11/20 19:32 | upstream | a90af8f15bdc | 4eb20a4e | .config | console log | report | info | ci-upstream-kasan-gce-386 | INFO: task hung in loop_set_status | |||
2021/11/19 16:15 | upstream | 4c388a8e740d | 3a9d0024 | .config | console log | report | info | ci-upstream-kasan-gce-386 | INFO: task hung in loop_set_status | |||
2021/11/19 11:15 | upstream | 4c388a8e740d | 31a30fc0 | .config | console log | report | info | ci-upstream-kasan-gce-386 | INFO: task hung in loop_set_status | |||
2021/11/18 16:07 | upstream | 42eb8fdac2fc | 31a30fc0 | .config | console log | report | info | ci-upstream-kasan-gce-386 | INFO: task hung in loop_set_status | |||
2021/11/18 10:50 | upstream | 42eb8fdac2fc | cafff8b6 | .config | console log | report | info | ci-upstream-kasan-gce-386 | INFO: task hung in loop_set_status | |||
2021/11/18 09:48 | upstream | 42eb8fdac2fc | cafff8b6 | .config | console log | report | info | ci-upstream-kasan-gce-386 | INFO: task hung in loop_set_status | |||
2021/11/16 19:01 | upstream | 8ab774587903 | 600426bd | .config | console log | report | info | ci-upstream-kasan-gce-386 | INFO: task hung in loop_set_status | |||
2021/11/16 07:48 | upstream | 8ab774587903 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce-386 | INFO: task hung in loop_set_status | |||
2021/11/16 06:10 | upstream | 8ab774587903 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce-386 | INFO: task hung in loop_set_status | |||
2021/11/15 22:37 | upstream | 8ab774587903 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce-386 | INFO: task hung in loop_set_status | |||
2021/11/14 20:00 | upstream | c8c109546a19 | 83f5c9b5 | .config | console log | report | info | ci-upstream-kasan-gce-386 | INFO: task hung in loop_set_status |