INFO: task syz-executor.5:448 blocked for more than 143 seconds.
Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:23384 pid:448 tgid:390 ppid:5085 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf12/0x5c00 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6817
io_schedule+0xbe/0x130 kernel/sched/core.c:9023
bit_wait_io+0x16/0xe0 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0x112/0x1a0 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0xdb/0x110 kernel/sched/wait_bit.c:117
wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline]
__lock_buffer+0x67/0x70 fs/buffer.c:71
lock_buffer include/linux/buffer_head.h:401 [inline]
ext4_quota_write+0x573/0x650 fs/ext4/super.c:7240
qtree_write_dquot+0x268/0x570 fs/quota/quota_tree.c:431
v2_write_dquot+0x1d6/0x250 fs/quota/quota_v2.c:358
dquot_commit+0x36d/0x590 fs/quota/dquot.c:512
ext4_write_dquot+0x259/0x320 fs/ext4/super.c:6866
ext4_mark_dquot_dirty fs/ext4/super.c:6914 [inline]
ext4_mark_dquot_dirty+0x113/0x1b0 fs/ext4/super.c:6908
mark_dquot_dirty fs/quota/dquot.c:372 [inline]
mark_all_dquot_dirty fs/quota/dquot.c:410 [inline]
dquot_alloc_inode+0x35c/0x730 fs/quota/dquot.c:1780
ext4_xattr_inode_alloc_quota fs/ext4/xattr.c:932 [inline]
ext4_xattr_set_entry+0xa25/0x3ce0 fs/ext4/xattr.c:1715
ext4_xattr_block_set+0x678/0x3180 fs/ext4/xattr.c:1970
ext4_xattr_set_handle+0xd70/0x1420 fs/ext4/xattr.c:2456
ext4_xattr_set+0x149/0x370 fs/ext4/xattr.c:2558
__vfs_setxattr+0x173/0x1d0 fs/xattr.c:201
__vfs_setxattr_noperm+0x127/0x5e0 fs/xattr.c:235
__vfs_setxattr_locked+0x17e/0x250 fs/xattr.c:296
vfs_setxattr+0x146/0x350 fs/xattr.c:322
do_setxattr+0x142/0x170 fs/xattr.c:630
setxattr+0x159/0x170 fs/xattr.c:653
__do_sys_fsetxattr fs/xattr.c:709 [inline]
__se_sys_fsetxattr fs/xattr.c:698 [inline]
__x64_sys_fsetxattr+0x25e/0x310 fs/xattr.c:698
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fcd1f27cda9
RSP: 002b:00007fcd200340c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000be
RAX: ffffffffffffffda RBX: 00007fcd1f3ac050 RCX: 00007fcd1f27cda9
RDX: 00000000200001c0 RSI: 0000000020000100 RDI: 0000000000000008
RBP: 00007fcd1f2c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001001 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fcd1f3ac050 R15: 00007ffdfc51fb78
INFO: task syz-executor.5:463 blocked for more than 144 seconds.
Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:29136 pid:463 tgid:390 ppid:5085 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf12/0x5c00 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6817
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6874
rwsem_down_write_slowpath kernel/locking/rwsem.c:1178 [inline]
__down_write_common+0x948/0x1400 kernel/locking/rwsem.c:1306
inode_lock_nested include/linux/fs.h:837 [inline]
lock_two_nondirectories+0xed/0x200 fs/inode.c:1111
swap_inode_boot_loader fs/ext4/ioctl.c:391 [inline]
__ext4_ioctl+0x118d/0x4570 fs/ext4/ioctl.c:1437
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl fs/ioctl.c:857 [inline]
__x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:857
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fcd1f27cda9
RSP: 002b:00007fcd200130c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fcd1f3ac120 RCX: 00007fcd1f27cda9
RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000008
RBP: 00007fcd1f2c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fcd1f3ac120 R15: 00007ffdfc51fb78
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x299/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xf87/0x1210 kernel/hung_task.c:379
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x1b/0x20 drivers/acpi/processor_idle.c:112