Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/04/28 | linux-6.1.y (ToT) | f2295faba5e8 | C | [report] INFO: task hung in f2fs_balance_fs |
2024/04/28 | upstream (ToT) | e67572cd2204 | C | Didn't crash |
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Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/04/28 | linux-6.1.y (ToT) | f2295faba5e8 | C | [report] INFO: task hung in f2fs_balance_fs |
2024/04/28 | upstream (ToT) | e67572cd2204 | C | Didn't crash |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-4.19 | INFO: task hung in f2fs_balance_fs f2fs | C | 199 | 423d | 563d | 0/1 | upstream: reported C repro on 2022/10/18 13:55 | ||
linux-6.1 | INFO: task hung in f2fs_balance_fs (2) | 2 | 158d | 179d | 0/3 | auto-obsoleted due to no activity on 2024/03/06 18:04 | |||
linux-4.14 | INFO: task hung in f2fs_balance_fs | 3 | 532d | 559d | 0/1 | auto-obsoleted due to no activity on 2023/03/18 03:56 | |||
upstream | INFO: task hung in f2fs_balance_fs f2fs | C | done | inconclusive | 434 | 17h40m | 415d | 0/26 | upstream: reported C repro on 2023/03/15 03:28 |
linux-6.1 | INFO: task hung in f2fs_balance_fs | 20 | 359d | 423d | 0/3 | auto-obsoleted due to no activity on 2023/08/22 15:19 | |||
linux-5.15 | INFO: task hung in f2fs_balance_fs origin:upstream | C | 81 | 5h17m | 422d | 0/3 | upstream: reported C repro on 2023/03/08 13:34 |
INFO: task kworker/u4:3:46 blocked for more than 143 seconds. Not tainted 6.1.88-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:3 state:D stack:21216 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 rwsem_down_write_slowpath+0xea1/0x14b0 kernel/locking/rwsem.c:1189 f2fs_down_write fs/f2fs/f2fs.h:2176 [inline] f2fs_balance_fs+0x4fb/0x6c0 fs/f2fs/segment.c:428 f2fs_write_inode+0x4c3/0x540 fs/f2fs/inode.c:730 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: ffff888014ee6938 ((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: ffff88807b18a0e0 (&type->s_umount_key#42){.+.+}-{3:3}, at: trylock_super+0x1b/0xf0 fs/super.c:415 #3: ffff88801b7ad140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2176 [inline] #3: ffff88801b7ad140 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_balance_fs+0x4fb/0x6c0 fs/f2fs/segment.c:428 2 locks held by getty/3302: #0: ffff888028cca098 (&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 5 locks held by syz-executor575/3566: ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.88-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 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: 3566 Comm: syz-executor575 Not tainted 6.1.88-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:memset+0x23/0x40 mm/kasan/shadow.c:47 Code: 00 00 e9 c0 ec ff ff 55 41 56 53 48 89 d3 41 89 f6 48 89 fd 48 8b 4c 24 18 48 89 d6 ba 01 00 00 00 e8 a1 ec ff ff 84 c0 74 12 <48> 89 ef 44 89 f6 48 89 da 5b 41 5e 5d e9 0b 8b a6 08 31 c0 5b 41 RSP: 0018:ffffc90003b3ee00 EFLAGS: 00000202 RAX: 1ffff1100e407201 RBX: 0000000000000028 RCX: ffffffff83cbe8f0 RDX: 0000000000000001 RSI: 0000000000000028 RDI: ffffc90003b3ee80 RBP: ffffc90003b3ee80 R08: dffffc0000000000 R09: fffff52000767dd5 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 R13: ffffc90003b3eed0 R14: 0000000000000000 R15: 1ffff92000767dcc FS: 0000555555700380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000557239d5b600 CR3: 000000007dd5b000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <NMI> </NMI> <TASK> f2fs_get_read_data_page+0xd0/0x8c0 fs/f2fs/data.c:1213 gc_data_segment fs/f2fs/gc.c:1601 [inline] do_garbage_collect+0x44d8/0x8210 fs/f2fs/gc.c:1769 f2fs_gc+0x1169/0x32a0 fs/f2fs/gc.c:1868 f2fs_balance_fs+0x506/0x6c0 fs/f2fs/segment.c:429 f2fs_map_blocks+0x2871/0x3ab0 fs/f2fs/data.c:1705 expand_inode_data+0x56d/0xaf0 fs/f2fs/file.c:1741 f2fs_fallocate+0x3fc/0x6d0 fs/f2fs/file.c:1836 vfs_fallocate+0x547/0x6b0 fs/open.c:323 ksys_fallocate fs/open.c:346 [inline] __do_sys_fallocate fs/open.c:354 [inline] __se_sys_fallocate fs/open.c:352 [inline] __x64_sys_fallocate+0xb9/0x100 fs/open.c:352 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: 0033:0x7f98c097bb59 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff843014e8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f98c097bb59 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007f98c09f45f0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000002000402 R11: 0000000000000246 R12: 00007fff84301520 R13: 00007fff84301748 R14: 431bde82d7b634db R15: 00007f98c09c403b </TASK> INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.442 msecs
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/04/28 19:23 | linux-6.1.y | f2295faba5e8 | 07b455f9 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | |
2024/05/03 03:38 | linux-6.1.y | 909ba1f1b414 | ddfc15a1 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/30 04:01 | linux-6.1.y | dcbc050cb0d3 | f10afd69 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/30 01:48 | linux-6.1.y | dcbc050cb0d3 | f10afd69 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/29 04:05 | linux-6.1.y | f2295faba5e8 | 07b455f9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/29 04:00 | linux-6.1.y | f2295faba5e8 | 07b455f9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/29 02:57 | linux-6.1.y | f2295faba5e8 | 07b455f9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/29 01:18 | linux-6.1.y | f2295faba5e8 | 07b455f9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/28 16:17 | linux-6.1.y | f2295faba5e8 | 07b455f9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/27 09:22 | linux-6.1.y | 6741e066ec76 | 07b455f9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/27 09:10 | linux-6.1.y | 6741e066ec76 | 07b455f9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/27 09:10 | linux-6.1.y | 6741e066ec76 | 07b455f9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/25 00:01 | linux-6.1.y | 6741e066ec76 | 8bdc0f22 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/24 14:53 | linux-6.1.y | 6741e066ec76 | 21339d7b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/24 08:29 | linux-6.1.y | 6741e066ec76 | 21339d7b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/24 08:28 | linux-6.1.y | 6741e066ec76 | 21339d7b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/24 08:17 | linux-6.1.y | 6741e066ec76 | 21339d7b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/23 12:22 | linux-6.1.y | 6741e066ec76 | 21339d7b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/23 12:22 | linux-6.1.y | 6741e066ec76 | 21339d7b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/23 09:34 | linux-6.1.y | 6741e066ec76 | 21339d7b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/23 09:34 | linux-6.1.y | 6741e066ec76 | 21339d7b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/22 11:42 | linux-6.1.y | 6741e066ec76 | 36c961ad | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/22 11:41 | linux-6.1.y | 6741e066ec76 | 36c961ad | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/21 16:35 | linux-6.1.y | 6741e066ec76 | af24b050 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/19 15:33 | linux-6.1.y | 6741e066ec76 | af24b050 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/03/27 06:52 | linux-6.1.y | e5cd595e23c1 | 454571b6 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: task hung in f2fs_balance_fs | ||
2024/04/24 10:30 | linux-6.1.y | 6741e066ec76 | 21339d7b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-arm64 | INFO: task hung in f2fs_balance_fs |