syzbot


INFO: task hung in lmLogClose

Status: upstream: reported on 2024/05/12 07:21
Reported-by: syzbot+160e3f0132bdb5ec04a9@syzkaller.appspotmail.com
First crash: 182d, last: 5d16h
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in lmLogClose jfs 1 572d 572d 0/28 auto-obsoleted due to no activity on 2023/07/16 16:14
upstream INFO: task hung in lmLogClose (3) jfs C error 123 2d15h 236d 0/28 upstream: reported C repro on 2024/03/19 10:13
upstream INFO: task hung in lmLogClose (2) jfs C inconclusive done 5 304d 397d 25/28 fixed on 2024/02/24 00:02
linux-5.15 INFO: task hung in lmLogClose 8 13d 219d 0/3 upstream: reported on 2024/04/05 11:21

Sample crash report:
INFO: task syz-executor:4244 blocked for more than 143 seconds.
      Not tainted 6.1.115-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:19552 pid:4244  ppid:1      flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5241 [inline]
 __schedule+0x143f/0x4570 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
 lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1444
 jfs_umount+0x298/0x370 fs/jfs/jfs_umount.c:116
 jfs_put_super+0x86/0x180 fs/jfs/super.c:194
 generic_shutdown_super+0x130/0x340 fs/super.c:501
 kill_block_super+0x7a/0xe0 fs/super.c:1470
 deactivate_locked_super+0xa0/0x110 fs/super.c:332
 cleanup_mnt+0x490/0x520 fs/namespace.c:1186
 task_work_run+0x246/0x300 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f12aa77fa47
RSP: 002b:00007ffe547b1228 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f12aa7f123c RCX: 00007f12aa77fa47
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe547b12e0
RBP: 00007ffe547b12e0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe547b2360
R13: 00007f12aa7f123c R14: 000000000001af21 R15: 00007ffe547b23a0
 </TASK>
INFO: task syz-executor:5688 blocked for more than 143 seconds.
      Not tainted 6.1.115-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:20088 pid:5688  ppid:1      flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5241 [inline]
 __schedule+0x143f/0x4570 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
 lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1444
 jfs_umount+0x298/0x370 fs/jfs/jfs_umount.c:116
 jfs_put_super+0x86/0x180 fs/jfs/super.c:194
 generic_shutdown_super+0x130/0x340 fs/super.c:501
 kill_block_super+0x7a/0xe0 fs/super.c:1470
 deactivate_locked_super+0xa0/0x110 fs/super.c:332
 cleanup_mnt+0x490/0x520 fs/namespace.c:1186
 task_work_run+0x246/0x300 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f9a3b17fa47
RSP: 002b:00007ffcc76c0fd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f9a3b1f123c RCX: 00007f9a3b17fa47
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcc76c1090
RBP: 00007ffcc76c1090 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffcc76c2110
R13: 00007f9a3b1f123c R14: 00000000000280f3 R15: 00007ffcc76c2150
 </TASK>
INFO: task syz-executor:5713 blocked for more than 144 seconds.
      Not tainted 6.1.115-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:20760 pid:5713  ppid:1      flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5241 [inline]
 __schedule+0x143f/0x4570 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
 lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1444
 jfs_umount+0x298/0x370 fs/jfs/jfs_umount.c:116
 jfs_put_super+0x86/0x180 fs/jfs/super.c:194
 generic_shutdown_super+0x130/0x340 fs/super.c:501
 kill_block_super+0x7a/0xe0 fs/super.c:1470
 deactivate_locked_super+0xa0/0x110 fs/super.c:332
 cleanup_mnt+0x490/0x520 fs/namespace.c:1186
 task_work_run+0x246/0x300 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa30557fa47
RSP: 002b:00007ffdd3c39878 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fa3055f123c RCX: 00007fa30557fa47
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdd3c39930
RBP: 00007ffdd3c39930 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffdd3c3a9b0
R13: 00007fa3055f123c R14: 0000000000028853 R15: 00007ffdd3c3a9f0
 </TASK>
INFO: task syz-executor:5723 blocked for more than 144 seconds.
      Not tainted 6.1.115-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:21248 pid:5723  ppid:1      flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5241 [inline]
 __schedule+0x143f/0x4570 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
 lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1444
 jfs_umount+0x298/0x370 fs/jfs/jfs_umount.c:116
 jfs_put_super+0x86/0x180 fs/jfs/super.c:194
 generic_shutdown_super+0x130/0x340 fs/super.c:501
 kill_block_super+0x7a/0xe0 fs/super.c:1470
 deactivate_locked_super+0xa0/0x110 fs/super.c:332
 cleanup_mnt+0x490/0x520 fs/namespace.c:1186
 task_work_run+0x246/0x300 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f581e97fa47
RSP: 002b:00007ffdbc258838 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f581e9f123c RCX: 00007f581e97fa47
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdbc2588f0
RBP: 00007ffdbc2588f0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffdbc259970
R13: 00007f581e9f123c R14: 0000000000028f52 R15: 00007ffdbc2599b0
 </TASK>
INFO: task syz-executor:6511 blocked for more than 144 seconds.
      Not tainted 6.1.115-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:21176 pid:6511  ppid:1      flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5241 [inline]
 __schedule+0x143f/0x4570 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
 lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1444
 jfs_umount+0x298/0x370 fs/jfs/jfs_umount.c:116
 jfs_put_super+0x86/0x180 fs/jfs/super.c:194
 generic_shutdown_super+0x130/0x340 fs/super.c:501
 kill_block_super+0x7a/0xe0 fs/super.c:1470
 deactivate_locked_super+0xa0/0x110 fs/super.c:332
 cleanup_mnt+0x490/0x520 fs/namespace.c:1186
 task_work_run+0x246/0x300 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f166b97fa47
RSP: 002b:00007ffe1342af48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f166b9f123c RCX: 00007f166b97fa47
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe1342b000
RBP: 00007ffe1342b000 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe1342c080
R13: 00007f166b9f123c R14: 0000000000028dff R15: 00007ffe1342c0c0
 </TASK>

Showing all locks held in the system:
2 locks held by kworker/u4:0/9:
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff8d32b1d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:517
1 lock held by rcu_tasks_trace/13:
 #0: ffffffff8d32b9d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:517
1 lock held by khungtaskd/28:
 #0: ffffffff8d32b000 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 #0: ffffffff8d32b000 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
 #0: ffffffff8d32b000 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6510
2 locks held by getty/4001:
 #0: ffff88814cc36098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
 #1: ffffc900032462f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2198
2 locks held by syz-executor/4244:
 #0: ffff8880568480e0 (&type->s_umount_key#79){++++}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:362
 #1: ffffffff8d713048 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/4245:
 #0: ffff8880768500e0 (&type->s_umount_key#79){++++}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:362
 #1: ffffffff8d713048 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1444
3 locks held by syz-executor/4258:
 #0: ffff88802aed10b8 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:508 [inline]
 #0: ffff88802aed10b8 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1ff/0x500 net/bluetooth/hci_core.c:2707
 #1: ffff88802aed0078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x48d/0x1020 net/bluetooth/hci_sync.c:5053
 #2: ffffffff8e652688 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1800 [inline]
 #2: ffffffff8e652688 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xb8/0x2a0 net/bluetooth/hci_conn.c:2444
5 locks held by kworker/u5:9/4263:
 #0: ffff88803007e938 ((wq_completion)hci14){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
 #1: ffffc90003ebfd20 ((work_completion)(&hdev->error_reset)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
 #2: ffff88805b8a50b8 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:508 [inline]
 #2: ffff88805b8a50b8 (&hdev->req_lock){+.+.}-{3:3}, at: hci_error_reset+0x124/0x3c0 net/bluetooth/hci_core.c:1021
 #3: ffff88805b8a4078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x48d/0x1020 net/bluetooth/hci_sync.c:5053
 #4: ffffffff8e652688 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1800 [inline]
 #4: ffffffff8e652688 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xb8/0x2a0 net/bluetooth/hci_conn.c:2444
2 locks held by kworker/0:4/4293:
 #0: ffff888017c72138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
 #1: ffffc9000432fd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7a9/0x11d0 kernel/workqueue.c:2267
2 locks held by kworker/u4:7/4690:
2 locks held by syz-executor/5688:
 #0: ffff8880448d20e0 (&type->s_umount_key#79){++++}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:362
 #1: ffffffff8d713048 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/5713:
 #0: ffff8880294ec0e0 (&type->s_umount_key#79){++++}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:362
 #1: ffffffff8d713048 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/5723:
 #0: ffff888075d6c0e0 (&type->s_umount_key#79){++++}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:362
 #1: ffffffff8d713048 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/6511:
 #0: ffff888056b620e0 (&type->s_umount_key#79){++++}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:362
 #1: ffffffff8d713048 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1444
3 locks held by syz.2.955/7416:
 #0: ffff88801ebe10b8 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:508 [inline]
 #0: ffff88801ebe10b8 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1ff/0x500 net/bluetooth/hci_core.c:2707
 #1: ffff88801ebe0078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x48d/0x1020 net/bluetooth/hci_sync.c:5053
 #2: ffffffff8d3305f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
 #2: ffffffff8d3305f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x360/0x930 kernel/rcu/tree_exp.h:962
2 locks held by syz-executor/7747:
 #0: ffff888055da80e0 (&type->s_umount_key#79){++++}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:362
 #1: ffffffff8d713048 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz.0.1855/10195:
 #0: ffff888030e7e0e0 (&type->s_umount_key#78/1){+.+.}-{3:3}, at: alloc_super+0x217/0x930 fs/super.c:228
 #1: ffffffff8d713048 (jfs_log_mutex){+.+.}-{3:3}, at: open_dummy_log fs/jfs/jfs_logmgr.c:1191 [inline]
 #1: ffffffff8d713048 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogOpen+0x1a6/0x1030 fs/jfs/jfs_logmgr.c:1066

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.115-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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+0x1ae/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:295
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4690 Comm: kworker/u4:7 Not tainted 6.1.115-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound nsim_dev_trap_report_work
RIP: 0010:get_stack_info+0x4f/0xf0 arch/x86/kernel/dumpstack_64.c:208
Code: d1 7e 48 85 ff 74 3f 48 89 ee 48 89 da e8 c9 5c 76 09 84 c0 74 30 45 31 ff 4d 85 f6 74 34 4d 8b 2e 44 8b 23 49 83 fc 40 73 4d <4d> 0f a3 e5 73 61 65 48 8b 05 23 c4 d1 7e 48 39 c5 75 09 80 3d 36
RSP: 0018:ffffc900057d75e8 EFLAGS: 00000283
RAX: 00000000057d7601 RBX: ffffc900057d7680 RCX: ffffc900057d0000
RDX: ffffc900057d7680 RSI: ffffc900057d8000 RDI: ffffc900057d7620
RBP: ffff88801e2f5940 R08: dffffc0000000001 R09: ffffc900057d7680
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: 0000000000000000 R14: ffffc900057d76a0 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f69d1107d38 CR3: 00000000252a4000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __unwind_start+0x437/0x720 arch/x86/kernel/unwind_orc.c:686
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0xdb/0x140 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
 kasan_slab_free include/linux/kasan.h:177 [inline]
 slab_free_hook mm/slub.c:1724 [inline]
 slab_free_freelist_hook mm/slub.c:1750 [inline]
 slab_free mm/slub.c:3661 [inline]
 __kmem_cache_free+0x25c/0x3c0 mm/slub.c:3674
 skb_free_head net/core/skbuff.c:762 [inline]
 skb_release_data+0x5de/0x7a0 net/core/skbuff.c:791
 skb_release_all net/core/skbuff.c:856 [inline]
 __kfree_skb net/core/skbuff.c:870 [inline]
 consume_skb+0xa3/0x140 net/core/skbuff.c:1035
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:821 [inline]
 nsim_dev_trap_report_work+0x75d/0xab0 drivers/net/netdevsim/dev.c:851
 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:295
 </TASK>

Crashes (10):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/11/04 20:49 linux-6.1.y 7c15117f9468 509da429 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: task hung in lmLogClose
2024/10/27 20:12 linux-6.1.y 7ec6f9fa3d97 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: task hung in lmLogClose
2024/10/15 23:42 linux-6.1.y aa4cd140bba5 bde2d81c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: task hung in lmLogClose
2024/07/04 09:47 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 lmLogClose
2024/07/02 13:08 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 lmLogClose
2024/06/11 09:25 linux-6.1.y 88690811da69 b7d9eb04 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: task hung in lmLogClose
2024/05/31 23:18 linux-6.1.y 88690811da69 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: task hung in lmLogClose
2024/05/31 23:18 linux-6.1.y 88690811da69 3113787f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: task hung in lmLogClose
2024/07/29 06:58 linux-6.1.y c1cec4dad96b 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: task hung in lmLogClose
2024/05/12 07:20 linux-6.1.y 909ba1f1b414 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: task hung in lmLogClose
* Struck through repros no longer work on HEAD.