INFO: task syz-executor.1:5045 blocked for more than 143 seconds.
Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:24024 pid:5045 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x1d15/0x5790 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
schedule_timeout+0x14e/0x2b0 kernel/time/timer.c:2167
gfs2_gl_hash_clear+0x247/0x270 fs/gfs2/glock.c:2198
gfs2_put_super+0x497/0x670 fs/gfs2/super.c:642
generic_shutdown_super+0x158/0x480 fs/super.c:500
kill_block_super+0xa1/0x100 fs/super.c:1407
gfs2_kill_sb+0x378/0x430 fs/gfs2/ops_fstype.c:1804
deactivate_locked_super+0x98/0x160 fs/super.c:331
deactivate_super+0xb1/0xd0 fs/super.c:362
cleanup_mnt+0x2ae/0x3d0 fs/namespace.c:1177
task_work_run+0x16f/0x270 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f52ff68d5d7
RSP: 002b:00007fffecaa4888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f52ff68d5d7
RDX: 00007fffecaa495b RSI: 000000000000000a RDI: 00007fffecaa4950
RBP: 00007fffecaa4950 R08: 00000000ffffffff R09: 00007fffecaa4720
R10: 0000555556f6e893 R11: 0000000000000246 R12: 00007f52ff6e6cdc
R13: 00007fffecaa5a10 R14: 0000555556f6e810 R15: 00007fffecaa5a50
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8c798530 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8c798230 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/28:
#0: ffffffff8c799140 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x390 kernel/locking/lockdep.c:6559
2 locks held by klogd/4445:
#0: ffff8880b983c5d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2f/0x120 kernel/sched/core.c:558
#1: ffff8880b9828848 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: fs_reclaim_acquire+0xb6/0x160 mm/page_alloc.c:3943
2 locks held by getty/4759:
#0: ffff88814a7fa098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2176
1 lock held by syz-executor.1/5045:
#0: ffff88802c2fe0e0 (&type->s_umount_key#89){+.+.}-{3:3}, at: deactivate_super+0xa9/0xd0 fs/super.c:361
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
nmi_cpu_backtrace+0x29c/0x350 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x2a4/0x300 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+0xe16/0x1090 kernel/hung_task.c:379
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2844 Comm: kworker/u4:5 Not tainted 6.4.0-rc2-next-20230515-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xb/0x70 kernel/kcov.c:207
Code: 0f 1e fa 48 8b be a8 01 00 00 e8 b0 ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 65 8b 05 0d 98 7f 7e <89> c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 c0 bb 03 00 a9
RSP: 0018:ffffc9000ca27b90 EFLAGS: 00000283
RAX: 0000000080000000 RBX: 0000000000000400 RCX: ffffffff89d6d273
RDX: ffff888029a3bb80 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 0000000000000000 R08: 0000000000000004 R09: 000000000000034f
R10: 0000000000000400 R11: 000000003eebce57 R12: ffff88808446c8a4
R13: dffffc0000000000 R14: ffff888082e00c80 R15: 000000000000034f
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001fa5000 CR3: 00000000215d3000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
batadv_iv_ogm_slide_own_bcast_window net/batman-adv/bat_iv_ogm.c:752 [inline]
batadv_iv_ogm_schedule_buff+0x588/0x1520 net/batman-adv/bat_iv_ogm.c:825
batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:868 [inline]
batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:861 [inline]
batadv_iv_send_outstanding_bat_ogm_packet+0x333/0x960 net/batman-adv/bat_iv_ogm.c:1712
process_one_work+0x99a/0x15e0 kernel/workqueue.c:2407
worker_thread+0x67d/0x10c0 kernel/workqueue.c:2554
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308