INFO: task syz-executor:9134 blocked for more than 145 seconds.
Not tainted 6.12.0-rc6-next-20241108-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:21584 pid:9134 tgid:9134 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6753
__schedule_loop kernel/sched/core.c:6830 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6845
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6902
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+0xb8b/0xf50 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+0xc4/0x130 fs/super.c:473
cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373
task_work_run+0x24f/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: 0033:0x7f25baf7fa47
RSP: 002b:00007ffe0e2f18c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f25baf7fa47
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe0e2f1980
RBP: 00007ffe0e2f1980 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe0e2f2a00
R13: 00007f25baff123c R14: 000000000003d14b R15: 00007ffe0e2f2a40
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc6-next-20241108-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
__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:234 [inline]
watchdog+0xffb/0x1040 kernel/hung_task.c:397
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 11939 Comm: syz-executor Not tainted 6.12.0-rc6-next-20241108-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:lock_acquire+0x287/0x550 kernel/locking/lockdep.c:5853
Code: 44 24 40 0e 36 e0 45 4b c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25 11 00 00 00 00 66 43 c7 44 25 15 00 00 <43> c6 44 25 17 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 00 01 00
RSP: 0018:ffffc90003ebf020 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff817aa244
RDX: 0000000000000000 RSI: ffffffff8c605b40 RDI: ffffffff8c605b00
RBP: ffffc90003ebf178 R08: ffffffff901c8877 R09: 1ffffffff203910e
R10: dffffc0000000000 R11: fffffbfff203910f R12: 1ffff920007d7e0c
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffea0001a46580
FS: 000055557ad9a500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020082030 CR3: 0000000054562000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
page_ext_get+0x3d/0x2a0 mm/page_ext.c:525
page_table_check_set+0x4f/0x540 mm/page_table_check.c:114
__page_table_check_ptes_set+0x30f/0x410 mm/page_table_check.c:225
page_table_check_ptes_set include/linux/page_table_check.h:74 [inline]
set_ptes include/linux/pgtable.h:288 [inline]
__copy_present_ptes mm/memory.c:967 [inline]
copy_present_ptes mm/memory.c:1050 [inline]
copy_pte_range mm/memory.c:1173 [inline]
copy_pmd_range+0x457c/0x7eb0 mm/memory.c:1261
copy_pud_range mm/memory.c:1298 [inline]
copy_p4d_range mm/memory.c:1322 [inline]
copy_page_range+0x99f/0xe90 mm/memory.c:1420
dup_mmap kernel/fork.c:745 [inline]
dup_mm kernel/fork.c:1672 [inline]
copy_mm+0x122b/0x1f60 kernel/fork.c:1721
copy_process+0x1845/0x3d50 kernel/fork.c:2372
kernel_clone+0x226/0x8f0 kernel/fork.c:2784
__do_sys_clone kernel/fork.c:2927 [inline]
__se_sys_clone kernel/fork.c:2911 [inline]
__x64_sys_clone+0x258/0x2a0 kernel/fork.c:2911
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: 0033:0x7f8a83f74f93
Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffe49e36978 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8a83f74f93
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 000055557ad9a7d0 R11: 0000000000000246 R12: 0000000000000000
R13: 00000000000628cf R14: 00000000000625d8 R15: 00007ffe49e36b00