INFO: task syz-executor.2:3642 blocked for more than 143 seconds.
Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:25040 pid:3642 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xda/0x1b0 kernel/sched/core.c:6579
rwsem_down_read_slowpath+0x59f/0xb10 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe2/0x450 kernel/locking/rwsem.c:1511
__gfs2_trans_begin+0x51f/0xaf0 fs/gfs2/trans.c:87
gfs2_trans_begin+0x6c/0xe0 fs/gfs2/trans.c:118
gfs2_write_jdata_pagevec fs/gfs2/aops.c:220 [inline]
gfs2_write_cache_jdata+0x397/0x1ac0 fs/gfs2/aops.c:349
gfs2_jdata_writepages+0x8d/0x170 fs/gfs2/aops.c:391
do_writepages+0x1ab/0x690 mm/page-writeback.c:2469
filemap_fdatawrite_wbc mm/filemap.c:388 [inline]
filemap_fdatawrite_wbc+0x143/0x1b0 mm/filemap.c:378
gfs2_ail1_start_one fs/gfs2/log.c:134 [inline]
gfs2_ail1_flush+0x6da/0x1220 fs/gfs2/log.c:214
gfs2_ail1_start+0x9d/0xd0 fs/gfs2/log.c:245
empty_ail1_list fs/gfs2/log.c:977 [inline]
gfs2_log_flush+0x1cd5/0x2890 fs/gfs2/log.c:1122
gfs2_kill_sb+0x54/0x160 fs/gfs2/ops_fstype.c:1732
deactivate_locked_super+0x94/0x160 fs/super.c:331
deactivate_super+0xad/0xd0 fs/super.c:362
cleanup_mnt+0x2ae/0x3d0 fs/namespace.c:1186
task_work_run+0x16b/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+0x23c/0x250 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:296
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd71be8ca17
RSP: 002b:00007fffad9b2d48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd71be8ca17
RDX: 00007fffad9b2e1b RSI: 000000000000000a RDI: 00007fffad9b2e10
RBP: 00007fffad9b2e10 R08: 00000000ffffffff R09: 00007fffad9b2be0
R10: 00005555572198b3 R11: 0000000000000246 R12: 00007fd71bee5826
R13: 00007fffad9b3ed0 R14: 0000555557219810 R15: 00007fffad9b3f10
INFO: task syz-executor.3:31539 blocked for more than 143 seconds.
Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:29664 pid:31539 ppid:3639 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xda/0x1b0 kernel/sched/core.c:6579
rwsem_down_read_slowpath+0x59f/0xb10 kernel/locking/rwsem.c:1095
__down_read_common kernel/locking/rwsem.c:1260 [inline]
__down_read kernel/locking/rwsem.c:1269 [inline]
down_read+0xe2/0x450 kernel/locking/rwsem.c:1511
iterate_supers+0xdb/0x290 fs/super.c:721
ksys_sync+0x86/0x150 fs/sync.c:102
__do_sys_sync+0xa/0x10 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f8a78e8b5a9
RSP: 002b:00007f8a79c97168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f8a78fac050 RCX: 00007f8a78e8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f8a78ee67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff424d984f R14: 00007f8a79c97300 R15: 0000000000022000
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x32f/0x3c0 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+0xc71/0xfc0 kernel/hung_task.c:377
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3724 Comm: kworker/u4:5 Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Workqueue: bat_events batadv_nc_worker
RIP: 0010:rcu_read_lock_held_common kernel/rcu/update.c:104 [inline]
RIP: 0010:rcu_read_lock_sched_held+0xd/0x70 kernel/rcu/update.c:123
Code: 01 44 89 e0 41 5c c3 45 31 e4 44 89 e0 41 5c c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 41 54 41 bc 01 00 00 00 e8 53 ad 28 08 <85> c0 75 06 44 89 e0 41 5c c3 e8 e4 bf 00 00 84 c0 74 41 e8 5b e2
RSP: 0018:ffffc9000441fb80 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff92000883f75 RCX: ffffffff815fb9ac
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff8de21a10
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8de21a17
R10: fffffbfff1bc4342 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000000 R14: ffffffff8bf889c0 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0088cabc8 CR3: 000000002053a000 CR4: 0000000000350ef0
Call Trace:
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0x4fc/0x630 kernel/locking/lockdep.c:5639
rcu_lock_acquire include/linux/rcupdate.h:304 [inline]
rcu_read_lock include/linux/rcupdate.h:738 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0x12d/0xfa0 net/batman-adv/network-coding.c:719
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306