INFO: task syz.0.17:6035 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.17        state:D stack:24744 pid:6035  tgid:6035  ppid:5973   task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x1798/0x4cc0 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:7058
 io_schedule+0x80/0xd0 kernel/sched/core.c:7903
 folio_wait_bit_common+0x6b0/0xb90 mm/filemap.c:1317
 folio_lock include/linux/pagemap.h:1139 [inline]
 writeback_get_folio mm/page-writeback.c:2468 [inline]
 writeback_iter+0x8d8/0x12a0 mm/page-writeback.c:2562
 iomap_writepages+0x14d/0x2d0 fs/iomap/buffered-io.c:1761
 gfs2_writepages+0x177/0x250 fs/gfs2/aops.c:175
 do_writepages+0x32e/0x550 mm/page-writeback.c:2634
 filemap_fdatawrite_wbc mm/filemap.c:386 [inline]
 __filemap_fdatawrite_range mm/filemap.c:419 [inline]
 __filemap_fdatawrite mm/filemap.c:425 [inline]
 filemap_fdatawrite+0x199/0x240 mm/filemap.c:430
 gfs2_ordered_write fs/gfs2/log.c:733 [inline]
 gfs2_log_flush+0x966/0x24c0 fs/gfs2/log.c:1102
 gfs2_trans_end+0x37c/0x570 fs/gfs2/trans.c:158
 gfs2_page_mkwrite+0x14a8/0x1910 fs/gfs2/file.c:535
 do_page_mkwrite+0x14d/0x310 mm/memory.c:3489
 do_shared_fault mm/memory.c:5779 [inline]
 do_fault mm/memory.c:5841 [inline]
 do_pte_missing mm/memory.c:4362 [inline]
 handle_pte_fault mm/memory.c:6182 [inline]
 __handle_mm_fault+0x1916/0x5400 mm/memory.c:6323
 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6492
 do_user_addr_fault+0xa81/0x1390 arch/x86/mm/fault.c:1336
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x82/0x100 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f59a96550b3
RSP: 002b:00007ffe629b0770 EFLAGS: 00010246
RAX: 0000200000000180 RBX: 0000000000000008 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00005555652fc3c8
RBP: 00007ffe629b0878 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f59a99b5fac
R13: 00007f59a99b5fa0 R14: fffffffffffffffe R15: 0000000000000006
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x39e/0x3d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:332 [inline]
 watchdog+0xf60/0xfa0 kernel/hung_task.c:495
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x47c/0x820 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6792 Comm: syz.1.255 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:seqcount_lockdep_reader_access+0x0/0x1c0 include/linux/seqlock.h:67
Code: 46 9c d2 09 cc e8 70 a5 11 00 90 0f 0b 90 e9 08 fd ff ff e8 82 b7 cf 09 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 55 48 89 e5 41 57 41 56 41 54 53 48 83 e4 e0 48 81 ec
RSP: 0018:ffffc90000a08e20 EFLAGS: 00000802
RAX: 1ffff110170e4f9d RBX: 1ffff110170e4f7d RCX: ffff8880303f8000
RDX: 0000000000010000 RSI: ffff8880b8727be8 RDI: ffff8880b8727ac8
RBP: ffff8880b8727ce8 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520001411b0 R12: ffff8880b8727ad0
R13: 0000000000000000 R14: ffff8880b8727c68 R15: 1ffff110170e4f59
FS:  0000555569cc3500(0000) GS:ffff888125aff000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3f1b14e000 CR3: 000000007ba72000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 ktime_get_update_offsets_now+0x60/0x3d0 kernel/time/timekeeping.c:2550
 hrtimer_update_base kernel/time/hrtimer.c:640 [inline]
 hrtimer_interrupt+0x132/0xaa0 kernel/time/hrtimer.c:1869
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline]
 __sysvec_apic_timer_interrupt+0x108/0x410 arch/x86/kernel/apic/apic.c:1056
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1050
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:2061 [inline]
RIP: 0010:vprintk_emit+0x58f/0x7a0 kernel/printk/printk.c:2449
Code: 85 32 01 00 00 e8 a1 81 1f 00 41 89 df 4d 85 f6 48 8b 1c 24 75 07 e8 90 81 1f 00 eb 06 e8 89 81 1f 00 fb 48 c7 c7 80 02 33 8e <31> f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00 45 31 c9 53 e8 b9 35
RSP: 0018:ffffc9000acd74a0 EFLAGS: 00000293
RAX: ffffffff81a10d47 RBX: ffffffff81a10c04 RCX: ffff8880303f8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e330280
RBP: ffffc9000acd75b0 R08: ffffffff8fc40337 R09: 1ffffffff1f88066
R10: dffffc0000000000 R11: fffffbfff1f88067 R12: dffffc0000000000
R13: 1ffff9200159ae98 R14: 0000000000000200 R15: 000000000000003a
 _printk+0xcf/0x120 kernel/printk/printk.c:2475
 sysfs_warn_dup fs/sysfs/dir.c:29 [inline]
 sysfs_create_dir_ns+0x254/0x280 fs/sysfs/dir.c:63
 create_dir lib/kobject.c:73 [inline]
 kobject_add_internal+0x59f/0xb40 lib/kobject.c:240
 kobject_add_varg lib/kobject.c:374 [inline]
 kobject_init_and_add+0x125/0x190 lib/kobject.c:457
 gfs2_sys_fs_add+0x234/0x450 fs/gfs2/sys.c:737
 gfs2_fill_super+0x13c0/0x20d0 fs/gfs2/ops_fstype.c:1206
 get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1692
 gfs2_get_tree+0x51/0x1e0 fs/gfs2/ops_fstype.c:1335
 vfs_get_tree+0x92/0x2b0 fs/super.c:1752
 do_new_mount+0x2a2/0xa30 fs/namespace.c:3810
 do_mount fs/namespace.c:4138 [inline]
 __do_sys_mount fs/namespace.c:4349 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4326
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2fdbf9038a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffcb361f7c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffcb361f850 RCX: 00007f2fdbf9038a
RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ffcb361f810
RBP: 000020000001f680 R08: 00007ffcb361f850 R09: 0000000000000094
R10: 0000000000000094 R11: 0000000000000246 R12: 0000200000000040
R13: 00007ffcb361f810 R14: 000000000001f790 R15: 00002000000001c0
 </TASK>