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[syzbot] [reiserfs?] INFO: task hung in __bread_gfp (4) | 0 (1) | 2022/12/25 06:15 |
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[syzbot] [reiserfs?] INFO: task hung in __bread_gfp (4) | 0 (1) | 2022/12/25 06:15 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | INFO: task hung in __bread_gfp (5) ntfs3 | 1 | 223d | 223d | 0/28 | auto-obsoleted due to no activity on 2024/07/30 08:01 | |||
upstream | INFO: task hung in __bread_gfp (3) fs | 1 | 1131d | 1131d | 0/28 | auto-closed as invalid on 2022/02/04 04:37 | |||
upstream | INFO: task hung in __bread_gfp exfat | 4 | 2348d | 2443d | 0/28 | auto-closed as invalid on 2019/02/22 10:29 | |||
linux-5.15 | INFO: task hung in __bread_gfp | 3 | 235d | 250d | 0/3 | auto-obsoleted due to no activity on 2024/07/28 07:35 | |||
android-49 | INFO: task hung in __bread_gfp | 2 | 2429d | 2443d | 0/3 | auto-closed as invalid on 2019/02/22 14:34 | |||
upstream | INFO: task hung in __bread_gfp (2) jfs | 5 | 1665d | 1671d | 0/28 | auto-closed as invalid on 2020/07/20 01:01 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2023/07/25 23:18 | 22m | retest repro | linux-next | OK log | |
2023/07/25 23:18 | 21m | retest repro | linux-next | OK log | |
2023/05/16 22:30 | 12m | retest repro | linux-next | error | |
2023/05/16 22:30 | 12m | retest repro | linux-next | error |
INFO: task syz-executor419:5082 blocked for more than 143 seconds. Not tainted 6.2.0-next-20230223-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor419 state:D stack:27440 pid:5082 ppid:5081 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5304 [inline] __schedule+0x24b4/0x5ac0 kernel/sched/core.c:6622 schedule+0xde/0x1a0 kernel/sched/core.c:6698 io_schedule+0xbe/0x130 kernel/sched/core.c:8884 bit_wait_io+0x16/0xe0 kernel/sched/wait_bit.c:209 __wait_on_bit+0x64/0x180 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0xd9/0x110 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] __wait_on_buffer fs/buffer.c:123 [inline] wait_on_buffer include/linux/buffer_head.h:388 [inline] __bread_slow fs/buffer.c:1221 [inline] __bread_gfp+0x29e/0x330 fs/buffer.c:1413 sb_bread include/linux/buffer_head.h:341 [inline] read_super_block+0x83/0x930 fs/reiserfs/super.c:1604 reiserfs_fill_super+0x75a/0x2ea0 fs/reiserfs/super.c:1959 mount_bdev+0x351/0x410 fs/super.c:1371 legacy_get_tree+0x109/0x220 fs/fs_context.c:610 vfs_get_tree+0x8d/0x350 fs/super.c:1501 do_new_mount fs/namespace.c:3042 [inline] path_mount+0x1342/0x1e40 fs/namespace.c:3372 do_mount fs/namespace.c:3385 [inline] __do_sys_mount fs/namespace.c:3594 [inline] __se_sys_mount fs/namespace.c:3571 [inline] __x64_sys_mount+0x283/0x300 fs/namespace.c:3571 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f04d36f13d9 RSP: 002b:00007ffed770c1a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f04d36f13d9 RDX: 00000000200003c0 RSI: 0000000020000380 RDI: 0000000020000340 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffed770c348 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f04d36b06f0 R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 </TASK> Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8c796bf0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510 1 lock held by rcu_tasks_trace/13: #0: ffffffff8c7968f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510 1 lock held by khungtaskd/28: #0: ffffffff8c797740 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x390 kernel/locking/lockdep.c:6495 2 locks held by getty/4758: #0: ffff88802c224098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177 1 lock held by syz-executor419/5082: #0: ffff88807bbce0e0 (&type->s_umount_key#25/1){+.+.}-{3:3}, at: alloc_super+0x22e/0xb60 fs/super.c:228 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.2.0-next-20230223-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 nmi_cpu_backtrace+0x316/0x3e0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x3a7/0x460 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xe94/0x11e0 kernel/hung_task.c:379 kthread+0x2e8/0x3a0 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 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline] NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x40/0x50 drivers/acpi/processor_idle.c:112
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2023/02/24 05:30 | linux-next | 0222aa9800b2 | 9e2ebb3c | .config | strace log | report | syz | C | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | INFO: task hung in __bread_gfp | |
2022/12/21 06:09 | linux-next | e45fb347b630 | d3e76707 | .config | strace log | report | syz | C | ci-upstream-linux-next-kasan-gce-root | INFO: task hung in __bread_gfp | ||
2022/12/21 01:30 | linux-next | e45fb347b630 | d3e76707 | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | INFO: task hung in __bread_gfp |