INFO: task syz-executor:6703 blocked for more than 143 seconds.
      Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:21832 pid:6703  tgid:6703  ppid:1      flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1850/0x4c30 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
 rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
 __down_read_common kernel/locking/rwsem.c:1248 [inline]
 __down_read kernel/locking/rwsem.c:1261 [inline]
 down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
 __gfs2_trans_begin+0x55d/0x950 fs/gfs2/trans.c:87
 gfs2_trans_begin+0x71/0xe0 fs/gfs2/trans.c:118
 gfs2_write_jdata_batch fs/gfs2/aops.c:194 [inline]
 gfs2_write_cache_jdata+0x60e/0x1fa0 fs/gfs2/aops.c:323
 gfs2_jdata_writepages+0x85/0x160 fs/gfs2/aops.c:366
 gfs2_ail1_start_one fs/gfs2/log.c:134 [inline]
 gfs2_ail1_flush+0xb85/0xf40 fs/gfs2/log.c:215
 gfs2_ail1_start fs/gfs2/log.c:246 [inline]
 empty_ail1_list+0x1a5/0x3c0 fs/gfs2/log.c:978
 gfs2_log_flush+0x20f2/0x2610 fs/gfs2/log.c:1130
 gfs2_kill_sb+0x5b/0x350 fs/gfs2/ops_fstype.c:1775
 deactivate_locked_super+0xc6/0x130 fs/super.c:473
 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373
 task_work_run+0x251/0x310 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6544b7fb47
RSP: 002b:00007ffc4aa42a68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f6544b7fb47
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc4aa42b20
RBP: 00007ffc4aa42b20 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc4aa43ba0
R13: 00007f6544bf15fc R14: 000000000001c7b8 R15: 00007ffc4aa43be0
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
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+0xff4/0x1040 kernel/hung_task.c:379
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 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: 80 Comm: kworker/u8:4 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Workqueue: events_unbound nsim_dev_trap_report_work
RIP: 0010:lockdep_hardirqs_on_prepare+0x488/0x780 kernel/locking/lockdep.c:4408
Code: 48 c7 44 24 20 0e 36 e0 45 4a c7 04 3a 00 00 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 60 0f 85 ab 02 00 00 48 8d 65 d8 5b <41> 5c 41 5d 41 5e 41 5f 5d e9 c5 f8 7f 0a 90 0f 0b 90 48 c7 c7 a0
RSP: 0018:ffffc900020ef968 EFLAGS: 00000046
RAX: 1d64c732f54ac600 RBX: ffff88805e23c000 RCX: ffffffff819cc06c
RDX: dffffc0000000000 RSI: ffffffff8c612b40 RDI: ffffffff8c612b00
RBP: ffffc900020ef988 R08: ffffffff901de177 R09: 1ffffffff203bc2e
R10: dffffc0000000000 R11: fffffbfff203bc2f R12: ffff88801ac42140
R13: ffff88805e23c000 R14: 0000000000069fc0 R15: 1ffff9200041df20
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faa9e5ff000 CR3: 0000000036cbe000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 trace_hardirqs_on+0x28/0x40 kernel/trace/trace_preemptirq.c:61
 kasan_quarantine_put+0xdc/0x230 mm/kasan/quarantine.c:234
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:2342 [inline]
 slab_free mm/slub.c:4579 [inline]
 kfree+0x1a0/0x440 mm/slub.c:4727
 skb_kfree_head net/core/skbuff.c:1086 [inline]
 skb_free_head net/core/skbuff.c:1098 [inline]
 skb_release_data+0x6a0/0x8a0 net/core/skbuff.c:1125
 skb_release_all net/core/skbuff.c:1190 [inline]
 __kfree_skb net/core/skbuff.c:1204 [inline]
 consume_skb+0x9f/0xf0 net/core/skbuff.c:1436
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:821 [inline]
 nsim_dev_trap_report_work+0x765/0xab0 drivers/net/netdevsim/dev.c:851
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>