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[syzbot] [f2fs?] INFO: task hung in f2fs_issue_checkpoint (2) | 0 (2) | 2025/07/15 07:45 |
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[syzbot] [f2fs?] INFO: task hung in f2fs_issue_checkpoint (2) | 0 (2) | 2025/07/15 07:45 |
Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|---|
upstream | INFO: task hung in f2fs_issue_checkpoint f2fs | 1 | C | error | inconclusive | 86 | 608d | 988d | 0/29 | auto-obsoleted due to no activity on 2024/02/10 19:41 |
linux-6.1 | INFO: task hung in f2fs_issue_checkpoint | 1 | 6 | 267d | 374d | 0/3 | auto-obsoleted due to no activity on 2025/01/29 10:18 | |||
linux-5.15 | INFO: task hung in f2fs_issue_checkpoint (2) | 1 | 1 | 337d | 337d | 0/3 | auto-obsoleted due to no activity on 2024/11/20 23:40 | |||
linux-5.15 | INFO: task hung in f2fs_issue_checkpoint | 1 | 3 | 442d | 469d | 0/3 | auto-obsoleted due to no activity on 2024/08/07 22:27 |
INFO: task syz-executor288:5860 blocked for more than 143 seconds. Not tainted 6.16.0-rc6-next-20250714-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor288 state:D stack:24648 pid:5860 tgid:5860 ppid:5859 task_flags:0x400140 flags:0x00004006 Call Trace: <TASK> context_switch kernel/sched/core.c:5314 [inline] __schedule+0x16f5/0x4d00 kernel/sched/core.c:6697 __schedule_loop kernel/sched/core.c:6775 [inline] schedule+0x165/0x360 kernel/sched/core.c:6790 schedule_timeout+0x9a/0x270 kernel/time/sleep_timeout.c:75 do_wait_for_common kernel/sched/completion.c:100 [inline] __wait_for_common kernel/sched/completion.c:121 [inline] wait_for_common kernel/sched/completion.c:132 [inline] wait_for_completion+0x2bf/0x5d0 kernel/sched/completion.c:153 f2fs_issue_checkpoint+0x376/0x570 fs/f2fs/checkpoint.c:-1 f2fs_do_sync_file+0x869/0x1860 fs/f2fs/file.c:346 generic_write_sync include/linux/fs.h:3038 [inline] f2fs_file_write_iter+0x74d/0x2410 fs/f2fs/file.c:5252 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x548/0xa90 fs/read_write.c:686 ksys_pwrite64 fs/read_write.c:793 [inline] __do_sys_pwrite64 fs/read_write.c:801 [inline] __se_sys_pwrite64 fs/read_write.c:798 [inline] __x64_sys_pwrite64+0x193/0x220 fs/read_write.c:798 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9b43976b19 RSP: 002b:00007ffee8c2a118 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 0000200000000040 RCX: 00007f9b43976b19 RDX: 000000000000fdef RSI: 0000200000000140 RDI: 0000000000000004 RBP: 0031656c69662f2e R08: 0000555559c514c0 R09: 0000555559c514c0 R10: 0000000000000e7c R11: 0000000000000246 R12: 00007ffee8c2a140 R13: 00007ffee8c2a368 R14: 431bde82d7b634db R15: 00007f9b439bf03b </TASK> Showing all locks held in the system: 1 lock held by khungtaskd/31: #0: ffffffff8e13eca0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline] #0: ffffffff8e13eca0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline] #0: ffffffff8e13eca0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6770 3 locks held by kworker/u8:6/1102: #0: ffff8881404f4948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline] #0: ffff8881404f4948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0 kernel/workqueue.c:3322 #1: ffffc90003c6fbc0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3215 [inline] #1: ffffc90003c6fbc0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0 kernel/workqueue.c:3322 #2: ffff8880292d40e0 (&type->s_umount_key#42){.+.+}-{4:4}, at: super_trylock_shared+0x20/0xf0 fs/super.c:563 2 locks held by getty/5605: #0: ffff88803009b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 drivers/tty/n_tty.c:2222 1 lock held by syz-executor288/5860: #0: ffff8880292d4428 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:3103 [inline] #0: ffff8880292d4428 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x211/0xa90 fs/read_write.c:682 2 locks held by f2fs_ckpt-7:0/5861: ============================================= NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250714-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: <TASK> dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 nmi_cpu_backtrace+0x39e/0x3d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:328 [inline] watchdog+0xfee/0x1030 kernel/hung_task.c:491 kthread+0x70e/0x8a0 kernel/kthread.c:463 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 </TASK> Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5861 Comm: f2fs_ckpt-7:0 Not tainted 6.16.0-rc6-next-20250714-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:xa_entry include/linux/xarray.h:1226 [inline] RIP: 0010:xas_reload+0x19a/0x470 include/linux/xarray.h:1630 Code: ff e8 ba 15 7f 09 89 c5 31 ff 89 c6 e8 1f a4 c7 ff 85 ed 0f 84 14 01 00 00 e8 d2 9f c7 ff e9 5a 02 00 00 e8 c8 9f c7 ff eb 1d <e8> 31 53 ad ff 89 c5 31 ff 89 c6 e8 f6 a3 c7 ff 85 ed 0f 84 27 01 RSP: 0018:ffffc9000414f528 EFLAGS: 00000246 RAX: ffffffff81f82547 RBX: ffffea0001c272c0 RCX: 0000000000000000 RDX: ffff8880792bbc00 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffea0001c272f7 R09: 1ffffd4000384e5e R10: dffffc0000000000 R11: fffff94000384e5f R12: ffff888075e30240 R13: 1ffff92000829eb0 R14: ffffc9000414f580 R15: ffff888025979e40 FS: 0000000000000000(0000) GS:ffff888125bed000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe4c0415fb3 CR3: 000000000df38000 CR4: 00000000003526f0 Call Trace: <TASK> filemap_get_entry+0x1c4/0x2f0 mm/filemap.c:1884 __filemap_get_folio+0x68/0xaf0 mm/filemap.c:1916 f2fs_grab_cache_folio+0x2b/0x380 fs/f2fs/f2fs.h:2870 __get_node_folio+0x194/0x1410 fs/f2fs/node.c:1505 f2fs_update_inode_page+0x82/0x190 fs/f2fs/inode.c:766 f2fs_sync_inode_meta fs/f2fs/checkpoint.c:1156 [inline] block_operations fs/f2fs/checkpoint.c:1263 [inline] f2fs_write_checkpoint+0xb6e/0x1df0 fs/f2fs/checkpoint.c:1638 __write_checkpoint_sync fs/f2fs/checkpoint.c:1756 [inline] __checkpoint_and_complete_reqs+0xd9/0x3b0 fs/f2fs/checkpoint.c:1775 issue_checkpoint_thread+0xd9/0x260 fs/f2fs/checkpoint.c:1806 kthread+0x70e/0x8a0 kernel/kthread.c:463 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 </TASK>
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2025/07/15 07:44 | linux-next | 0be23810e32e | 03fcfc4b | .config | strace log | report | syz / log | C | [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] | ci-upstream-linux-next-kasan-gce-root | INFO: task hung in f2fs_issue_checkpoint | |
2025/07/15 08:18 | upstream | 155a3c003e55 | 03fcfc4b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-root | INFO: task hung in f2fs_issue_checkpoint | ||
2025/07/11 01:00 | upstream | bc9ff192a6c9 | 3cda49cf | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/07/10 00:44 | upstream | 733923397fd9 | f4e5e155 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-root | INFO: task hung in f2fs_issue_checkpoint | ||
2025/07/09 17:19 | upstream | 733923397fd9 | f4e5e155 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/07/09 04:47 | upstream | d006330be3f7 | 4d9fdfa4 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/07/06 16:45 | upstream | 1f988d0788f5 | 4f67c4ae | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/07/01 18:34 | upstream | 66701750d556 | 091a06cd | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/06/30 10:24 | upstream | d0b3b7b22dfa | fc9d8ee5 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/06/30 09:52 | upstream | d0b3b7b22dfa | fc9d8ee5 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/06/30 09:10 | upstream | d0b3b7b22dfa | fc9d8ee5 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/06/30 03:30 | upstream | afa9a6f4f574 | fc9d8ee5 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/06/29 05:52 | upstream | dfba48a70cb6 | fc9d8ee5 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/06/26 03:22 | upstream | 92ca6c498a5e | 26d77996 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-root | INFO: task hung in f2fs_issue_checkpoint | ||
2025/06/25 22:27 | upstream | 92ca6c498a5e | 26d77996 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/06/14 19:45 | upstream | 4774cfe3543a | 5f4b362d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-root | INFO: task hung in f2fs_issue_checkpoint | ||
2025/06/14 11:10 | upstream | 02adc1490e6d | 0e8da31f | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/05/26 02:06 | upstream | 0f8c0258bf04 | 2d4582d0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/05/24 14:49 | upstream | 4856ebd99715 | ed351ea7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/05/14 19:18 | upstream | 1a80a098c606 | a4fa04ef | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/05/11 11:48 | upstream | 3ce9925823c7 | 77908e5f | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/05/08 11:17 | upstream | d76bb1ebb558 | dbf35fa1 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/04/30 11:52 | upstream | b6ea1680d0ac | 85a5a23f | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/04/24 11:10 | upstream | a79be02bba5c | 9882047a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/03/18 08:06 | upstream | fc444ada1310 | ce3352cd | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2024/12/28 18:54 | upstream | fd0584d220fe | d3ccff63 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2024/10/22 22:33 | upstream | c2ee9f594da8 | a93682b3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2024/10/22 01:53 | upstream | d12937763990 | f1e4447c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2024/10/22 01:13 | upstream | d12937763990 | f1e4447c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2024/10/02 00:23 | upstream | e32cde8d2bd7 | ea2b66a6 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2024/09/17 20:25 | upstream | 2f27fce67173 | c673ca06 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2024/09/11 14:47 | upstream | 8d8d276ba2fb | 8ab55d0e | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2024/09/09 16:28 | upstream | da3ea35007d0 | 073f8be2 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2024/09/09 16:19 | upstream | da3ea35007d0 | 073f8be2 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2024/08/10 10:15 | upstream | afdab700f65e | 6f4edef4 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2024/07/07 14:55 | upstream | c6653f49e4fd | 2a40360c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2024/07/07 14:54 | upstream | c6653f49e4fd | 2a40360c | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2024/04/21 03:58 | upstream | 977b1ef51866 | af24b050 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | INFO: task hung in f2fs_issue_checkpoint | ||
2025/07/15 04:38 | linux-next | 0be23810e32e | 03fcfc4b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | INFO: task hung in f2fs_issue_checkpoint | ||
2025/07/15 04:37 | linux-next | 0be23810e32e | 03fcfc4b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | INFO: task hung in f2fs_issue_checkpoint | ||
2025/06/14 21:28 | linux-next | bc6e0ba6c9ba | 5f4b362d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | INFO: task hung in f2fs_issue_checkpoint |