INFO: task syz-executor:5095 blocked for more than 147 seconds.
      Not tainted 6.10.0-rc7-next-20240712-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:21704 pid:5095  tgid:5095  ppid:1      flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5239 [inline]
 __schedule+0x1800/0x4a60 kernel/sched/core.c:6603
 __schedule_loop kernel/sched/core.c:6680 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6695
 bit_wait+0x12/0xd0 kernel/sched/wait_bit.c:199
 __wait_on_bit+0xb0/0x2f0 kernel/sched/wait_bit.c:49
 out_of_line_wait_on_bit+0x1d5/0x260 kernel/sched/wait_bit.c:64
 wait_on_bit include/linux/wait_bit.h:76 [inline]
 gfs2_glock_wait+0xc7/0x2b0 fs/gfs2/glock.c:1363
 gfs2_glock_nq_init fs/gfs2/glock.h:238 [inline]
 __gfs2_lookup+0x11b/0x280 fs/gfs2/inode.c:905
 __lookup_slow+0x28c/0x3f0 fs/namei.c:1718
 lookup_slow+0x53/0x70 fs/namei.c:1735
 walk_component+0x2e1/0x410 fs/namei.c:2030
 lookup_last fs/namei.c:2499 [inline]
 path_lookupat+0x16f/0x450 fs/namei.c:2523
 filename_lookup+0x256/0x610 fs/namei.c:2552
 user_path_at+0x3a/0x60 fs/namei.c:2959
 ksys_umount fs/namespace.c:2032 [inline]
 __do_sys_umount fs/namespace.c:2040 [inline]
 __se_sys_umount fs/namespace.c:2038 [inline]
 __x64_sys_umount+0xf1/0x170 fs/namespace.c:2038
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5351776f07
RSP: 002b:00007fff33ce6538 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 00007f53517e3515 RCX: 00007f5351776f07
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff33ce65f0
RBP: 00007fff33ce65f0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff33ce76e0
R13: 00007f53517e3515 R14: 000000000001bb7c R15: 000000000001af30
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc7-next-20240712-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
 watchdog+0xfee/0x1030 kernel/hung_task.c:379
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:144
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 7417 Comm: kworker/u8:10 Not tainted 6.10.0-rc7-next-20240712-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: bat_events batadv_nc_worker
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:124 [inline]
RIP: 0010:__local_bh_disable_ip+0xd4/0x220 kernel/softirq.c:309
Code: 19 a4 00 48 c7 44 24 60 00 00 00 00 9c 8f 44 24 60 42 80 3c 23 00 74 08 4c 89 f7 e8 26 18 a4 00 48 8d 7c 24 40 4c 8b 74 24 60 <fa> 65 44 01 3d 2b 9e ac 7e 65 8b 05 24 9e ac 7e 44 31 f8 a9 00 ff
RSP: 0018:ffffc900040af9c0 EFLAGS: 00000246
RAX: 0000000080000000 RBX: 1ffff92000815f44 RCX: 0000000000000015
RDX: 1ffff1100c660471 RSI: 0000000000000201 RDI: ffffc900040afa00
RBP: ffffc900040afa98 R08: ffffffff8faffd6f R09: 1ffffffff1f5ffad
R10: dffffc0000000000 R11: fffffbfff1f5ffae R12: dffffc0000000000
R13: 1ffff92000815f3c R14: 0000000000000246 R15: 0000000000000201
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32e05ff8 CR3: 000000006bac6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:125 [inline]
 _raw_spin_lock_bh+0x1c/0x50 kernel/locking/spinlock.c:178
 spin_lock_bh include/linux/spinlock.h:356 [inline]
 batadv_nc_purge_paths+0xe8/0x3b0 net/batman-adv/network-coding.c:442
 batadv_nc_worker+0x365/0x610 net/batman-adv/network-coding.c:722
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd40 kernel/workqueue.c:3390
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:144
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>