syzbot |
sign-in | mailing list | source | docs |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | INFO: task hung in blk_freeze_queue (4) block | 2 | 584d | 587d | 0/28 | auto-obsoleted due to no activity on 2023/07/28 15:48 | |||
upstream | INFO: task hung in blk_freeze_queue block | C | 188 | 2341d | 2491d | 8/28 | fixed on 2018/07/09 18:05 | ||
upstream | INFO: task hung in blk_freeze_queue (5) block | 1 | 249d | 249d | 0/28 | auto-obsoleted due to no activity on 2024/06/27 12:04 | |||
upstream | INFO: task hung in blk_freeze_queue (2) block | 1 | 2243d | 2243d | 0/28 | auto-closed as invalid on 2019/04/12 00:55 | |||
linux-6.1 | INFO: task hung in blk_freeze_queue origin:upstream | C | error | 1 | 84d | 544d | 0/3 | upstream: reported C repro on 2023/06/08 14:42 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2022/09/03 00:47 | 12m | hdanton@sina.com | patch | https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master | report log |
2022/09/02 23:54 | 12m | hdanton@sina.com | patch | https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master | report log |
INFO: task syz-executor898:3778 blocked for more than 143 seconds. Not tainted 6.1.0-rc5-syzkaller-32269-g9500fc6e9e60 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor898 state:D stack:0 pid:3778 ppid:3109 flags:0x00000001 Call trace: __switch_to+0x180/0x298 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5191 [inline] __schedule+0x408/0x594 kernel/sched/core.c:6503 schedule+0x64/0xa4 kernel/sched/core.c:6579 blk_mq_freeze_queue_wait+0x94/0xf4 block/blk-mq.c:180 blk_freeze_queue+0x94/0xa8 block/blk-mq.c:207 blk_mq_freeze_queue+0x20/0x30 block/blk-mq.c:216 nbd_add_socket+0x78/0x27c drivers/block/nbd.c:1121 __nbd_ioctl+0x80/0x334 drivers/block/nbd.c:1464 nbd_ioctl+0xec/0x13c drivers/block/nbd.c:1521 blkdev_ioctl+0x24c/0x6d8 block/ioctl.c:614 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0xd0/0x140 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 INFO: task syz-executor898:3779 blocked for more than 143 seconds. Not tainted 6.1.0-rc5-syzkaller-32269-g9500fc6e9e60 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor898 state:D stack:0 pid:3779 ppid:3109 flags:0x00000001 Call trace: __switch_to+0x180/0x298 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5191 [inline] __schedule+0x408/0x594 kernel/sched/core.c:6503 schedule+0x64/0xa4 kernel/sched/core.c:6579 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6638 __mutex_lock_common+0x788/0xca8 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 nbd_ioctl+0x70/0x13c drivers/block/nbd.c:1514 blkdev_ioctl+0x24c/0x6d8 block/ioctl.c:614 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0xd0/0x140 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 INFO: task syz-executor898:3780 blocked for more than 143 seconds. Not tainted 6.1.0-rc5-syzkaller-32269-g9500fc6e9e60 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor898 state:D stack:0 pid:3780 ppid:3109 flags:0x00000001 Call trace: __switch_to+0x180/0x298 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5191 [inline] __schedule+0x408/0x594 kernel/sched/core.c:6503 schedule+0x64/0xa4 kernel/sched/core.c:6579 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6638 __mutex_lock_common+0x788/0xca8 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 nbd_ioctl+0x70/0x13c drivers/block/nbd.c:1514 blkdev_ioctl+0x24c/0x6d8 block/ioctl.c:614 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0xd0/0x140 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/11: #0: ffff80000d4d4768 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/12: #0: ffff80000d4d4db8 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507 1 lock held by khungtaskd/27: #0: ffff80000d4d4640 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:303 1 lock held by klogd/2592: #0: ffff0001fefeee98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:537 [inline] #0: ffff0001fefeee98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1354 [inline] #0: ffff0001fefeee98 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1644 [inline] #0: ffff0001fefeee98 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0xa4/0x594 kernel/sched/core.c:6420 2 locks held by getty/2756: #0: ffff0000c7d60898 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 drivers/tty/tty_ldisc.c:244 #1: ffff80000f6ee2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x19c/0x89c drivers/tty/n_tty.c:2177 1 lock held by syz-executor898/3778: #0: ffff0000c62c4d98 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x70/0x13c drivers/block/nbd.c:1514 1 lock held by syz-executor898/3779: #0: ffff0000c62c4d98 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x70/0x13c drivers/block/nbd.c:1514 1 lock held by syz-executor898/3780: #0: ffff0000c62c4d98 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x70/0x13c drivers/block/nbd.c:1514 =============================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2022/11/19 09:18 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 9500fc6e9e60 | 5bb70014 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | INFO: task hung in blk_freeze_queue | |
2022/10/16 10:19 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | bbed346d5a96 | 67cb024c | .config | console log | report | syz | C | [disk image] [vmlinux] | ci-upstream-gce-arm64 | INFO: task hung in blk_freeze_queue | |
2022/10/15 22:31 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | bbed346d5a96 | 67cb024c | .config | console log | report | syz | C | [disk image] [vmlinux] | ci-upstream-gce-arm64 | INFO: task hung in blk_freeze_queue | |
2022/10/12 08:57 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | bbed346d5a96 | 16a9c9e0 | .config | console log | report | syz | C | [disk image] [vmlinux] | ci-upstream-gce-arm64 | INFO: task hung in blk_freeze_queue | |
2022/09/08 09:21 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 25050c56fa3c | 435aeef7 | .config | console log | report | syz | C | ci-upstream-gce-arm64 | INFO: task hung in blk_freeze_queue | ||
2022/09/05 15:09 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 85413d1e802e | 922294ab | .config | console log | report | syz | C | ci-upstream-gce-arm64 | INFO: task hung in blk_freeze_queue | ||
2022/08/27 14:24 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | a41a877bc12d | 07177916 | .config | console log | report | syz | C | ci-upstream-gce-arm64 | INFO: task hung in blk_freeze_queue | ||
2022/09/14 07:53 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | a6b443748715 | b884348d | .config | console log | report | info | ci-upstream-gce-arm64 | INFO: task hung in blk_freeze_queue |