INFO: task syz-executor.0:5410 blocked for more than 143 seconds.
Not tainted 6.12.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:22728 pid:5410 tgid:5408 ppid:5341 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x17fa/0x4bb0 kernel/sched/core.c:6693
__schedule_loop kernel/sched/core.c:6770 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6785
io_schedule+0x8d/0x110 kernel/sched/core.c:7577
folio_wait_bit_common+0x882/0x12a0 mm/filemap.c:1309
folio_wait_locked include/linux/pagemap.h:1223 [inline]
gfs2_jhead_process_page+0x194/0x750 fs/gfs2/lops.c:470
gfs2_find_jhead+0x9c9/0xf10 fs/gfs2/lops.c:576
check_journal_clean+0x195/0x360 fs/gfs2/util.c:76
init_journal+0x1881/0x2410 fs/gfs2/ops_fstype.c:806
init_inodes+0xdc/0x320 fs/gfs2/ops_fstype.c:864
gfs2_fill_super+0x1bd1/0x24d0 fs/gfs2/ops_fstype.c:1249
get_tree_bdev_flags+0x48c/0x5c0 fs/super.c:1636
gfs2_get_tree+0x54/0x220 fs/gfs2/ops_fstype.c:1330
vfs_get_tree+0x90/0x290 fs/super.c:1814
do_new_mount+0x2be/0xb40 fs/namespace.c:3507
do_mount fs/namespace.c:3847 [inline]
__do_sys_mount fs/namespace.c:4057 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f7ee947e22a
RSP: 002b:00007f7ee87fdee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f7ee87fdf80 RCX: 00007f7ee947e22a
RDX: 000000002001f680 RSI: 000000002001f6c0 RDI: 00007f7ee87fdf40
RBP: 000000002001f680 R08: 00007f7ee87fdf80 R09: 0000000000000600
R10: 0000000000000600 R11: 0000000000000246 R12: 000000002001f6c0
R13: 00007f7ee87fdf40 R14: 000000000001f679 R15: 0000000020000080
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8df352e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8df352e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8df352e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6720
2 locks held by getty/4794:
#0: ffff88814b61d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
1 lock held by syz-executor.0/5410:
#0: ffff88806d1fa0e0 (&type->s_umount_key#50/1){+.+.}-{3:3}, at: alloc_super+0x221/0x9d0 fs/super.c:344
2 locks held by syz-executor.0/6332:
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc7-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+0x198/0x300 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+0xfec/0x1030 kernel/hung_task.c:379
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: 6332 Comm: syz-executor.0 Not tainted 6.12.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:86 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x79/0x290 mm/kasan/generic.c:189
Code: 4d 89 c1 49 c1 e9 03 49 be 01 00 00 00 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 <4c> 89 cd 48 f7 d5 48 01 dd 41 80 3b 00 0f 85 c9 01 00 00 49 ff c3
RSP: 0018:ffffc90009ea70e8 EFLAGS: 00000002
RAX: 0000000000000001 RBX: 1ffffffff255b2f4 RCX: ffffffff816f2fca
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff92ad97a0
RBP: 0000000000000001 R08: ffffffff92ad97a7 R09: 1ffffffff255b2f4
R10: dffffc0000000000 R11: fffffbfff255b2f4 R12: ffff8880213d8b28
R13: dffffc0000000000 R14: dffffc0000000001 R15: fffffbfff255b2f5
FS: 00007f67208496c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f67177ff000 CR3: 0000000029224000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
hlock_class kernel/locking/lockdep.c:228 [inline]
mark_lock+0x9a/0x350 kernel/locking/lockdep.c:4703
mark_held_locks kernel/locking/lockdep.c:4321 [inline]
__trace_hardirqs_on_caller kernel/locking/lockdep.c:4339 [inline]
lockdep_hardirqs_on_prepare+0x282/0x7a0 kernel/locking/lockdep.c:4406
trace_hardirqs_on+0x28/0x40 kernel/trace/trace_preemptirq.c:61
seqcount_lockdep_reader_access+0x13b/0x1e0 include/linux/seqlock.h:74
read_seqbegin include/linux/seqlock.h:757 [inline]
zone_span_seqbegin include/linux/memory_hotplug.h:103 [inline]
page_outside_zone_boundaries mm/page_alloc.c:437 [inline]
bad_range+0x5f/0x270 mm/page_alloc.c:456
rmqueue mm/page_alloc.c:3091 [inline]
get_page_from_freelist+0x35d8/0x3740 mm/page_alloc.c:3471
__alloc_pages_noprof+0x261/0x6a0 mm/page_alloc.c:4750
alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
folio_alloc_mpol_noprof+0x36/0x50 mm/mempolicy.c:2283
shmem_alloc_folio mm/shmem.c:1771 [inline]
shmem_alloc_and_add_folio+0x49b/0x13d0 mm/shmem.c:1810
shmem_get_folio_gfp+0x5a9/0x2090 mm/shmem.c:2332
shmem_get_folio mm/shmem.c:2438 [inline]
shmem_write_begin+0x17e/0x460 mm/shmem.c:3040
generic_perform_write+0x345/0xbf0 mm/filemap.c:4054
shmem_file_write_iter+0xf9/0x120 mm/shmem.c:3215
new_sync_write fs/read_write.c:590 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:683
ksys_write+0x183/0x2b0 fs/read_write.c:736
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x82/0x160 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f671fa7b86f
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 b9 80 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 0c 81 02 00 48
RSP: 002b:00007f6720848e70 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000001000000 RCX: 00007f671fa7b86f
RDX: 0000000001000000 RSI: 00007f6716800000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000001f672
R10: 0000000000000002 R11: 0000000000000293 R12: 0000000000000003
R13: 00007f6720848f3c R14: 00007f6720848f40 R15: 00007f6716800000