Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2023/09/18 | upstream (ToT) | ce9ecca0238b | C | [report] INFO: task hung in blkdev_put |
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Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2023/09/18 | upstream (ToT) | ce9ecca0238b | C | [report] INFO: task hung in blkdev_put |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-5.15 | INFO: task hung in blkdev_flush_mapping | 1 | 192d | 192d | 0/3 | auto-obsoleted due to no activity on 2024/07/04 14:18 | |||
upstream | INFO: task hung in blkdev_flush_mapping block | C | unreliable | 11 | 15d | 291d | 0/28 | upstream: reported C repro on 2023/12/18 10:31 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2024/09/18 23:52 | 2h28m | bisect fix | linux-6.1.y | OK (0) job log log | |
2024/05/12 23:55 | 1h23m | bisect fix | linux-6.1.y | OK (0) job log log | |
2024/04/07 05:07 | 1h58m | bisect fix | linux-6.1.y | OK (0) job log log | |
2024/03/07 11:45 | 1h23m | bisect fix | linux-6.1.y | OK (0) job log log | |
2024/01/29 03:39 | 2h04m | bisect fix | linux-6.1.y | OK (0) job log log | |
2023/12/27 03:08 | 1h22m | bisect fix | linux-6.1.y | OK (0) job log log | |
2023/11/26 04:34 | 1h24m | bisect fix | linux-6.1.y | OK (0) job log log | |
2023/10/24 17:35 | 1h51m | bisect fix | linux-6.1.y | OK (0) job log log |
INFO: task udevd:3574 blocked for more than 143 seconds. Not tainted 6.1.53-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:24416 pid:3574 ppid:3004 flags:0x00004006 Call Trace: <TASK> context_switch kernel/sched/core.c:5241 [inline] __schedule+0x132c/0x4330 kernel/sched/core.c:6554 schedule+0xbf/0x180 kernel/sched/core.c:6630 io_schedule+0x88/0x100 kernel/sched/core.c:8782 folio_wait_bit_common+0x868/0x1280 mm/filemap.c:1296 __filemap_get_folio+0x44a/0xe30 mm/filemap.c:1931 truncate_inode_pages_range+0x598/0x1340 mm/truncate.c:378 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x154/0x2b0 block/bdev.c:662 blkdev_put_whole block/bdev.c:693 [inline] blkdev_put+0x4c0/0x750 block/bdev.c:953 blkdev_close+0x56/0x80 block/fops.c:514 __fput+0x3b7/0x890 fs/file_table.c:320 task_work_run+0x246/0x300 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x6fb/0x2300 kernel/exit.c:869 do_group_exit+0x202/0x2b0 kernel/exit.c:1019 get_signal+0x16f7/0x17d0 kernel/signal.c:2862 arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7c4ef169a4 RSP: 002b:00007ffc356f9b40 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: 0000000000000008 RBX: 000056190c3d6cf0 RCX: 00007f7c4ef169a4 RDX: 00000000000a0800 RSI: 000056190c3c8070 RDI: 00000000ffffff9c RBP: 000056190c3c8070 R08: 0000000000000001 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800 R13: 000056190c3ca5a0 R14: 0000000000000001 R15: 000056190c3b5910 </TASK> INFO: task syz-executor256:3592 blocked for more than 143 seconds. Not tainted 6.1.53-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor256 state:D stack:27560 pid:3592 ppid:3570 flags:0x00004006 Call Trace: <TASK> context_switch kernel/sched/core.c:5241 [inline] __schedule+0x132c/0x4330 kernel/sched/core.c:6554 schedule+0xbf/0x180 kernel/sched/core.c:6630 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6689 __mutex_lock_common+0xe2b/0x2520 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799 blkdev_get_by_dev+0x148/0xa10 block/bdev.c:813 blkdev_open+0x12e/0x2e0 block/fops.c:500 do_dentry_open+0x7f9/0x10f0 fs/open.c:882 do_open fs/namei.c:3557 [inline] path_openat+0x2644/0x2e60 fs/namei.c:3714 do_filp_open+0x230/0x480 fs/namei.c:3741 do_sys_openat2+0x13b/0x500 fs/open.c:1318 do_sys_open fs/open.c:1334 [inline] __do_sys_openat fs/open.c:1350 [inline] __se_sys_openat fs/open.c:1345 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1345 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc08e12d570 RSP: 002b:00007fc08e0ebd90 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc08e12d570 RDX: 0000000000000000 RSI: 00007fc08e0ebe10 RDI: 00000000ffffff9c RBP: 00007fc08e0ebe10 R08: 0000000000000000 R09: 002364626e2f7665 R10: 0000000000000000 R11: 0000000000000293 R12: 6666666666666667 R13: 00007fc08e1821a4 R14: 64626e2f7665642f R15: 00007fff7155f268 </TASK> Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8d12a1b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:516 1 lock held by rcu_tasks_trace/13: #0: ffffffff8d12a9b0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:516 1 lock held by khungtaskd/28: #0: ffffffff8d129fe0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by getty/3307: #0: ffff888028cb7098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2188 1 lock held by udevd/3574: #0: ffff88801f6ef4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x100/0x750 block/bdev.c:911 1 lock held by syz-executor256/3592: #0: ffff88801f6ef4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x148/0xa10 block/bdev.c:813 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.53-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1b0/0x3f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline] watchdog+0xf18/0xf60 kernel/hung_task.c:377 kthread+0x26e/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 </TASK> Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 56 Comm: kworker/u4:4 Not tainted 6.1.53-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:inat_immediate_size arch/x86/include/asm/inat.h:188 [inline] RIP: 0010:insn_get_immediate+0xf1/0x1390 arch/x86/lib/insn.c:647 Code: f7 89 e8 25 00 00 02 00 0f 85 50 01 00 00 89 ee 81 e6 00 38 00 00 31 ff e8 9c 53 06 f7 89 e8 25 00 38 00 00 0f 84 80 03 00 00 <c1> ed 0b 83 e5 07 48 89 ef 48 c7 c6 50 73 5d 8e e8 7a 54 06 f7 ff RSP: 0018:ffffc90001577880 EFLAGS: 00000206 RAX: 0000000000003000 RBX: 1ffff920002aef39 RCX: ffff8880162c9dc0 RDX: ffff8880162c9dc0 RSI: 0000000000003000 RDI: 0000000000000000 RBP: 000000000000b000 R08: ffffffff8a83c3f4 R09: ffffc90001577980 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90001577980 R13: ffffc900015779bc R14: 1ffff920002aef37 R15: ffffc900015779cc FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055cd9c84f680 CR3: 000000000ce8e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <NMI> </NMI> <TASK> insn_get_length arch/x86/lib/insn.c:707 [inline] insn_decode+0x36c/0x500 arch/x86/lib/insn.c:747 arch_jump_entry_size arch/x86/kernel/jump_label.c:24 [inline] __jump_label_patch+0xe4/0x440 arch/x86/kernel/jump_label.c:45 arch_jump_label_transform_queue+0x4a/0xd0 arch/x86/kernel/jump_label.c:137 __jump_label_update+0x177/0x3a0 kernel/jump_label.c:447 static_key_disable_cpuslocked+0xca/0x1b0 kernel/jump_label.c:207 static_key_disable+0x16/0x20 kernel/jump_label.c:215 toggle_allocation_gate+0x3e0/0x480 mm/kfence/core.c:818 process_one_work+0x8aa/0x11f0 kernel/workqueue.c:2292 worker_thread+0xa5f/0x1210 kernel/workqueue.c:2439 kthread+0x26e/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 </TASK> INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.322 msecs
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2023/09/18 10:49 | linux-6.1.y | 09045dae0d90 | 0b6a67ac | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | |
2024/08/15 19:00 | linux-6.1.y | 117ac406ba90 | e4bacdaf | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2024/07/23 07:24 | linux-6.1.y | 9b3f9a5b12dc | 708c10c4 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2024/07/22 12:30 | linux-6.1.y | 9b3f9a5b12dc | df655b64 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2024/07/05 15:03 | linux-6.1.y | 7753af06eebf | 2a40360c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2024/07/04 07:21 | linux-6.1.y | 99e6a620de00 | 3f2748a3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2024/07/02 11:11 | linux-6.1.y | 99e6a620de00 | 07f0a0a0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2024/06/10 05:17 | linux-6.1.y | 88690811da69 | 82c05ab8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2024/06/08 09:10 | linux-6.1.y | 88690811da69 | 82c05ab8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2024/06/08 08:56 | linux-6.1.y | 88690811da69 | 82c05ab8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2024/05/26 16:22 | linux-6.1.y | 88690811da69 | a10a183e | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2024/05/24 08:34 | linux-6.1.y | 4078fa637fcd | 8f98448e | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2024/05/18 11:11 | linux-6.1.y | 4078fa637fcd | c0f1611a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2024/05/18 00:46 | linux-6.1.y | 4078fa637fcd | c0f1611a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2024/05/17 23:48 | linux-6.1.y | 4078fa637fcd | a12e99e7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2024/05/17 23:46 | linux-6.1.y | 4078fa637fcd | a12e99e7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2024/05/17 23:45 | linux-6.1.y | 4078fa637fcd | a12e99e7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2024/05/17 23:45 | linux-6.1.y | 4078fa637fcd | a12e99e7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping | ||
2023/09/09 22:50 | linux-6.1.y | 59b13c2b647e | 6654cf89 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in blkdev_flush_mapping |