Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/05/12 | upstream (ToT) | ba16c1cf11c9 | C | [report] INFO: task hung in exfat_write_inode |
syzbot |
sign-in | mailing list | source | docs |
Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/05/12 | upstream (ToT) | ba16c1cf11c9 | C | [report] INFO: task hung in exfat_write_inode |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | INFO: task hung in exfat_write_inode exfat | C | done | error | 3315 | 6d00h | 905d | 0/28 | upstream: reported C repro on 2022/12/22 18:53 |
linux-5.15 | INFO: task hung in exfat_write_inode origin:upstream | C | error | 17 | 153d | 427d | 0/3 | upstream: reported C repro on 2024/04/13 19:03 | |
linux-6.1 | INFO: task hung in exfat_write_inode | 3 | 608d | 672d | 0/3 | auto-obsoleted due to no activity on 2024/01/23 18:02 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2025/05/29 13:09 | 1h45m | bisect fix | linux-6.1.y | OK (0) job log log | |
2025/04/26 06:13 | 2h41m | bisect fix | linux-6.1.y | OK (0) job log log | |
2025/03/23 01:44 | 1h32m | bisect fix | linux-6.1.y | OK (0) job log log | |
2025/02/18 09:22 | 2h09m | bisect fix | linux-6.1.y | OK (0) job log log | |
2025/01/18 03:31 | 1h20m | bisect fix | linux-6.1.y | OK (0) job log log | |
2024/10/26 16:20 | 1h35m | bisect fix | linux-6.1.y | OK (0) job log log | |
2024/09/01 17:11 | 1h52m | bisect fix | linux-6.1.y | OK (0) job log log |
INFO: task kworker/u4:3:46 blocked for more than 143 seconds. Not tainted 6.1.90-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:3 state:D stack:19224 pid:46 ppid:2 flags:0x00004000 Workqueue: writeback wb_workfn (flush-7:0) Call Trace: <TASK> context_switch kernel/sched/core.c:5245 [inline] __schedule+0x142d/0x4550 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747 exfat_write_inode+0x65/0x110 fs/exfat/inode.c:94 write_inode fs/fs-writeback.c:1460 [inline] __writeback_single_inode+0x67d/0x11e0 fs/fs-writeback.c:1677 writeback_sb_inodes+0xc2b/0x1b20 fs/fs-writeback.c:1903 __writeback_inodes_wb+0x114/0x400 fs/fs-writeback.c:1974 wb_writeback+0x4b1/0xe10 fs/fs-writeback.c:2079 wb_check_background_flush fs/fs-writeback.c:2145 [inline] wb_do_writeback fs/fs-writeback.c:2233 [inline] wb_workfn+0xc9e/0x1020 fs/fs-writeback.c:2260 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8d12ae50 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516 1 lock held by rcu_tasks_trace/13: #0: ffffffff8d12b650 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516 1 lock held by khungtaskd/28: #0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline] #0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline] #0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6494 4 locks held by kworker/u4:3/46: #0: ffff888142eee938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #1: ffffc90000b77d20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267 #2: ffff88807a8fe0e0 (&type->s_umount_key#42){.+.+}-{3:3}, at: trylock_super+0x1b/0xf0 fs/super.c:415 #3: ffff88807a8fc0e0 (&sbi->s_lock){+.+.}-{3:3}, at: exfat_write_inode+0x65/0x110 fs/exfat/inode.c:94 2 locks held by getty/3304: #0: ffff888028bbb098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2188 3 locks held by syz-executor204/3585: ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.90-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 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+0xf88/0xfd0 kernel/hung_task.c:377 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3585 Comm: syz-executor204 Not tainted 6.1.90-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:__this_cpu_preempt_check+0x0/0x10 lib/smp_processor_id.c:65 Code: 4c 89 fe 4c 89 f2 e8 4f e3 fd ff 48 8b 74 24 30 48 c7 c7 60 44 3d 8b e8 3e e3 fd ff e8 15 9b ff ff eb a9 e8 92 e6 ff ff 66 90 <48> 89 fe 48 c7 c7 e0 43 3d 8b e9 e1 fe ff ff cc eb 1e 0f 1f 00 48 RSP: 0018:ffffc90003cff598 EFLAGS: 00000046 RAX: 0000000000000200 RBX: 0000000000000200 RCX: ffff888028c13b80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8afa0180 RBP: ffffc90003cff6c8 R08: ffffffff82010392 R09: ffffed100e69bd69 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 1ffff9200079febc R14: 0000000000000200 R15: 0000000000036938 FS: 0000555556328380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ae7cc55c78 CR3: 000000002280d000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <NMI> </NMI> <TASK> lookup_bh_lru fs/buffer.c:1274 [inline] __find_get_block+0x1ac/0x1120 fs/buffer.c:1303 __getblk_gfp+0x2d/0xa20 fs/buffer.c:1329 __bread_gfp+0x2a/0x370 fs/buffer.c:1367 sb_bread include/linux/buffer_head.h:338 [inline] __exfat_ent_get fs/exfat/fatent.c:48 [inline] exfat_ent_get+0x149/0x400 fs/exfat/fatent.c:97 exfat_readdir fs/exfat/dir.c:183 [inline] exfat_iterate+0xccc/0x3280 fs/exfat/dir.c:257 iterate_dir+0x224/0x560 __do_sys_getdents64 fs/readdir.c:369 [inline] __se_sys_getdents64+0x209/0x4f0 fs/readdir.c:354 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f993f5da0a3 Code: c1 66 0f 1f 44 00 00 48 83 c4 08 48 89 ef 5b 5d e9 82 48 fb ff 66 90 b8 ff ff ff 7f 48 39 c2 48 0f 47 d0 b8 d9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 c7 c2 b8 ff ff ff f7 d8 RSP: 002b:00007fffc1323a48 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9 RAX: ffffffffffffffda RBX: 0000555556331730 RCX: 00007f993f5da0a3 RDX: 0000000000008000 RSI: 0000555556331730 RDI: 0000000000000004 RBP: 0000555556331704 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000001000 R11: 0000000000000293 R12: ffffffffffffffb8 R13: 0000000000000010 R14: 0000555556331700 R15: 00007fffc1325cc0 </TASK> INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.459 msecs
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/05/12 16:18 | linux-6.1.y | 909ba1f1b414 | 9026e142 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | |
2024/12/04 03:40 | linux-6.1.y | e4d90d63d385 | b50eb251 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/12/04 00:48 | linux-6.1.y | e4d90d63d385 | b50eb251 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/12/03 07:55 | linux-6.1.y | e4d90d63d385 | 578925bc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/12/02 23:20 | linux-6.1.y | e4d90d63d385 | b499ea68 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/12/01 01:45 | linux-6.1.y | e4d90d63d385 | 68914665 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/09/26 10:00 | linux-6.1.y | e526b12bf916 | 0d19f247 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/29 16:29 | linux-6.1.y | c1cec4dad96b | 5187fc86 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/26 21:21 | linux-6.1.y | c18e82d3ee44 | 46eb10b7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/26 02:49 | linux-6.1.y | c18e82d3ee44 | 3f86dfed | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/24 19:27 | linux-6.1.y | 9b3f9a5b12dc | d1a1b0ca | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/24 06:29 | linux-6.1.y | 9b3f9a5b12dc | 57b2edb1 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/23 14:45 | linux-6.1.y | 9b3f9a5b12dc | e50e8da5 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/20 12:30 | linux-6.1.y | 9b3f9a5b12dc | b88348e9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/19 20:36 | linux-6.1.y | 9b3f9a5b12dc | 890ce4f3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/19 07:16 | linux-6.1.y | 9b3f9a5b12dc | ee4e11c8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/18 17:31 | linux-6.1.y | 9b3f9a5b12dc | 71884c12 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/18 00:32 | linux-6.1.y | cac15753b8ce | 0f902625 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/17 05:42 | linux-6.1.y | cac15753b8ce | 215bec2d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/16 20:04 | linux-6.1.y | cac15753b8ce | b66b37bd | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/15 12:07 | linux-6.1.y | cac15753b8ce | c605e6a2 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/12 00:50 | linux-6.1.y | 266ee8e06d5b | eaeb5c15 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/11 07:51 | linux-6.1.y | 7753af06eebf | c699c2eb | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/10 22:22 | linux-6.1.y | 7753af06eebf | 6f7fa383 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/09 22:01 | linux-6.1.y | 7753af06eebf | 79d68ada | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/09 01:20 | linux-6.1.y | 7753af06eebf | bc23a442 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/07/04 10:53 | 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 exfat_write_inode | ||
2024/07/02 11:20 | 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 exfat_write_inode | ||
2024/06/27 15:10 | linux-6.1.y | 99e6a620de00 | 6ef39602 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/06/26 06:32 | linux-6.1.y | eb44d83053d6 | dec8bc94 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/06/21 20:23 | linux-6.1.y | eb44d83053d6 | edc5149a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/06/20 11:30 | linux-6.1.y | eb44d83053d6 | dac2aa43 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/06/19 03:03 | linux-6.1.y | eb44d83053d6 | 639d6cdf | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/06/18 15:39 | linux-6.1.y | eb44d83053d6 | 639d6cdf | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/06/18 03:33 | linux-6.1.y | eb44d83053d6 | ce6011bc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/06/17 17:25 | linux-6.1.y | eb44d83053d6 | 1f11cfd7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/06/17 05:40 | linux-6.1.y | eb44d83053d6 | f429ab00 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/06/16 16:29 | linux-6.1.y | eb44d83053d6 | f429ab00 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/06/16 00:45 | linux-6.1.y | ae9f2a70d69e | f429ab00 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/06/15 19:52 | linux-6.1.y | ae9f2a70d69e | f429ab00 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/06/14 11:30 | linux-6.1.y | ae9f2a70d69e | 8d849073 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/06/14 09:50 | linux-6.1.y | ae9f2a70d69e | 8d849073 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2024/04/15 01:38 | linux-6.1.y | cd5d98c0556c | c8349e48 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in exfat_write_inode | ||
2025/02/20 16:29 | linux-6.1.y | 0cbb5f65e52f | 50668798 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-arm64 | INFO: task hung in exfat_write_inode | ||
2024/11/29 09:36 | linux-6.1.y | e4d90d63d385 | 5df23865 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-arm64 | INFO: task hung in exfat_write_inode |