INFO: task kworker/u8:10:3532 blocked for more than 143 seconds.
Not tainted 6.12.0-rc5-next-20241101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:10 state:D stack:22576 pid:3532 tgid:3532 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn
(flush-7:2)
Call Trace:
context_switch kernel/sched/core.c:5327 [inline]
__schedule+0x184f/0x4c30 kernel/sched/core.c:6707
__schedule_loop kernel/sched/core.c:6784 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6799
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6856
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
hfs_find_init+0x16e/0x1f0
hfs_ext_write_extent+0x12c/0x1d0 fs/hfs/extent.c:141
hfs_write_inode+0xbc/0xec0 fs/hfs/inode.c:429
write_inode fs/fs-writeback.c:1501 [inline]
__writeback_single_inode+0x711/0x10d0 fs/fs-writeback.c:1721
writeback_sb_inodes+0x80c/0x1370 fs/fs-writeback.c:1952
__writeback_inodes_wb+0x11b/0x260 fs/fs-writeback.c:2023
wb_writeback+0x42f/0xbd0 fs/fs-writeback.c:2134
wb_check_background_flush fs/fs-writeback.c:2204 [inline]
wb_do_writeback fs/fs-writeback.c:2292 [inline]
wb_workfn+0xc58/0x1090 fs/fs-writeback.c:2319
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
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
INFO: task syz.2.3:5930 blocked for more than 144 seconds.
Not tainted 6.12.0-rc5-next-20241101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.3 state:D stack:24976 pid:5930 tgid:5930 ppid:5858 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5327 [inline]
__schedule+0x184f/0x4c30 kernel/sched/core.c:6707
__schedule_loop kernel/sched/core.c:6784 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6799
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6856
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
hfs_find_init+0x16e/0x1f0
hfs_file_truncate+0x52f/0xa20 fs/hfs/extent.c:512
hfs_file_release+0xce/0x110 fs/hfs/inode.c:585
__fput+0x23c/0xa50 fs/file_table.c:450
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:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff48af7e719
RSP: 002b:00007ffe21d0a508 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007ff48b137a80 RCX: 00007ff48af7e719
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007ff48b137a80 R08: 0000000000000006 R09: 00007ffe21d0a7ff
R10: 00000000003fd79c R11: 0000000000000246 R12: 000000000000eeeb
R13: 00007ffe21d0a610 R14: 0000000000000032 R15: ffffffffffffffff
INFO: task syz.2.3:5932 blocked for more than 144 seconds.
Not tainted 6.12.0-rc5-next-20241101-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.3 state:D stack:24656 pid:5932 tgid:5930 ppid:5858 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5327 [inline]
__schedule+0x184f/0x4c30 kernel/sched/core.c:6707
__schedule_loop kernel/sched/core.c:6784 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6799
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6856
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
hfs_find_init+0x16e/0x1f0
hfs_ext_read_extent fs/hfs/extent.c:200 [inline]
hfs_extend_file+0x31b/0x1450 fs/hfs/extent.c:401
hfs_bmap_reserve+0xd9/0x400 fs/hfs/btree.c:234
__hfs_ext_write_extent+0x22e/0x4f0 fs/hfs/extent.c:121
__hfs_ext_cache_extent+0x6a/0x990 fs/hfs/extent.c:174
hfs_ext_read_extent fs/hfs/extent.c:202 [inline]
hfs_extend_file+0x344/0x1450 fs/hfs/extent.c:401
hfs_get_block+0x3e4/0xb60 fs/hfs/extent.c:353
__block_write_begin_int+0x50c/0x1a70 fs/buffer.c:2116
block_write_begin fs/buffer.c:2226 [inline]
cont_write_begin+0x6e2/0x9d0 fs/buffer.c:2577
hfs_write_begin+0x68/0xb0 fs/hfs/inode.c:52
cont_expand_zero fs/buffer.c:2504 [inline]
cont_write_begin+0x338/0x9d0 fs/buffer.c:2567
hfs_write_begin+0x68/0xb0 fs/hfs/inode.c:52
hfs_file_truncate+0x1ed/0xa20 fs/hfs/extent.c:494
hfs_inode_setattr+0x458/0x620 fs/hfs/inode.c:654
notify_change+0xbca/0xe90 fs/attr.c:552
do_truncate fs/open.c:65 [inline]
do_ftruncate+0x462/0x580 fs/open.c:181
do_sys_ftruncate fs/open.c:199 [inline]
__do_sys_ftruncate fs/open.c:207 [inline]
__se_sys_ftruncate fs/open.c:205 [inline]
__x64_sys_ftruncate+0x95/0xf0 fs/open.c:205
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: 0033:0x7ff48af7e719
RSP: 002b:00007ff48bd76038 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007ff48b136058 RCX: 00007ff48af7e719
RDX: 0000000000000000 RSI: 0000000008208200 RDI: 000000000000000c
RBP: 00007ff48aff132e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff48b136058 R15: 00007ffe21d0a3a8
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc5-next-20241101-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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: 29 Comm: kauditd Not tainted 6.12.0-rc5-next-20241101-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:rdtsc_ordered arch/x86/include/asm/msr.h:217 [inline]
RIP: 0010:delay_tsc+0x31/0xe0 arch/x86/lib/delay.c:72
Code: 41 56 53 49 89 fe bf 01 00 00 00 e8 a9 03 a3 f5 e8 f4 f2 03 00 41 89 c7 0f 01 f9 66 90 48 89 d3 48 c1 e3 20 48 09 c3 0f 01 f9 <66> 90 48 89 d5 48 c1 e5 20 48 09 c5 48 29 dd 4c 39 f5 73 67 bf 01
RSP: 0018:ffffc90000a57618 EFLAGS: 00000006
RAX: 000000000ebb3d7a RBX: 000000710ebb3d56 RCX: 0000000000000001
RDX: 0000000000000071 RSI: ffffffff8c6054a0 RDI: ffffffff8c605460
RBP: ffffc90000a57810 R08: ffffffff85430854 R09: 1ffff11004961046
R10: dffffc0000000000 R11: ffffffff8bc0c840 R12: dffffc0000000000
R13: ffffffff9a418f30 R14: 0000000000000899 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff6dec5f378 CR3: 00000000331e0000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
udelay include/asm-generic/delay.h:62 [inline]
wait_for_lsr drivers/tty/serial/8250/8250_port.c:2093 [inline]
serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3334 [inline]
serial8250_console_write+0x1328/0x1ed0 drivers/tty/serial/8250/8250_port.c:3412
console_emit_next_record kernel/printk/printk.c:3110 [inline]
console_flush_all+0x869/0xeb0 kernel/printk/printk.c:3198
__console_flush_and_unlock kernel/printk/printk.c:3257 [inline]
console_unlock+0x14f/0x3b0 kernel/printk/printk.c:3297
vprintk_emit+0x730/0xa10 kernel/printk/printk.c:2425
_printk+0xd5/0x120 kernel/printk/printk.c:2450
kauditd_printk_skb kernel/audit.c:546 [inline]
kauditd_hold_skb+0x1be/0x210 kernel/audit.c:581
kauditd_send_queue+0x2b1/0x310 kernel/audit.c:766
kauditd_thread+0x74a/0x9b0 kernel/audit.c:890
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