INFO: task kworker/u4:8:3472 blocked for more than 143 seconds.
Not tainted 6.5.0-syzkaller-12821-g6099776f9f26 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:8 state:D stack:21672 pid:3472 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn (flush-7:0)
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6695
schedule+0xc3/0x180 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
__mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
hfsplus_find_init+0x14a/0x1c0
hfsplus_ext_read_extent fs/hfsplus/extents.c:216 [inline]
hfsplus_file_extend+0x454/0x1b70 fs/hfsplus/extents.c:461
hfsplus_bmap_reserve+0x105/0x4e0 fs/hfsplus/btree.c:358
__hfsplus_ext_write_extent+0x2a4/0x5b0 fs/hfsplus/extents.c:104
hfsplus_ext_write_extent_locked fs/hfsplus/extents.c:139 [inline]
hfsplus_ext_write_extent+0x16a/0x1f0 fs/hfsplus/extents.c:150
hfsplus_write_inode+0x22/0x5e0 fs/hfsplus/super.c:154
write_inode fs/fs-writeback.c:1456 [inline]
__writeback_single_inode+0x69b/0xfa0 fs/fs-writeback.c:1668
writeback_sb_inodes+0x8e3/0x11d0 fs/fs-writeback.c:1894
wb_writeback+0x44d/0xc60 fs/fs-writeback.c:2070
wb_do_writeback fs/fs-writeback.c:2217 [inline]
wb_workfn+0x400/0xff0 fs/fs-writeback.c:2257
process_one_work+0x781/0x1130 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0xabf/0x1060 kernel/workqueue.c:2784
kthread+0x2b8/0x350 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
INFO: task syz-executor.0:5380 blocked for more than 143 seconds.
Not tainted 6.5.0-syzkaller-12821-g6099776f9f26 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:21128 pid:5380 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6695
schedule+0xc3/0x180 kernel/sched/core.c:6771
wb_wait_for_completion+0x166/0x290 fs/fs-writeback.c:192
__writeback_inodes_sb_nr+0x2d2/0x370 fs/fs-writeback.c:2650
sync_filesystem+0xa4/0x220 fs/sync.c:54
generic_shutdown_super+0x72/0x2c0 fs/super.c:666
kill_block_super+0x41/0x70 fs/super.c:1646
deactivate_locked_super+0xa4/0x110 fs/super.c:481
cleanup_mnt+0x426/0x4c0 fs/namespace.c:1254
task_work_run+0x24a/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296
do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f498347dc07
RSP: 002b:00007ffedfcb9fb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f498347dc07
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffedfcba070
RBP: 00007ffedfcba070 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffedfcbb130
R13: 00007f49834d7af2 R14: 00000000000108b2 R15: 0000000000000004
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.5.0-syzkaller-12821-g6099776f9f26 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x310 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+0xdf5/0xe40 kernel/hung_task.c:379
kthread+0x2b8/0x350 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 674 Comm: kworker/u4:5 Not tainted 6.5.0-syzkaller-12821-g6099776f9f26 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:insn_get_prefixes+0x8c/0x18a0
Code: 24 40 4d 8d 67 68 4c 89 e0 48 c1 e8 03 48 bb 00 00 00 00 00 fc ff df 48 89 44 24 28 80 3c 18 00 74 08 4c 89 e7 e8 b4 bf 20 f7 <4d> 8b 6f 68 49 8d 4d 01 49 8d 6f 60 48 89 e8 48 c1 e8 03 48 89 44
RSP: 0018:ffffc9000368f680 EFLAGS: 00000246
RAX: 1ffff920006d1f45 RBX: dffffc0000000000 RCX: ffff88801bf38000
RDX: ffff88801bf38000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8ac6d16c R09: 0000000000000000
R10: ffffc9000368f9c0 R11: fffff520006d1f43 R12: ffffc9000368fa28
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc9000368f9c0
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000560f0ead2680 CR3: 000000000d130000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
insn_get_opcode+0x1b2/0xa50 arch/x86/lib/insn.c:272
insn_get_modrm+0x22e/0x7a0 arch/x86/lib/insn.c:343
insn_get_sib arch/x86/lib/insn.c:421 [inline]
insn_get_displacement+0x13e/0x980 arch/x86/lib/insn.c:464
insn_get_immediate+0x382/0x13d0 arch/x86/lib/insn.c:632
insn_get_length arch/x86/lib/insn.c:707 [inline]
insn_decode+0x370/0x500 arch/x86/lib/insn.c:747
arch_jump_entry_size arch/x86/kernel/jump_label.c:24 [inline]
__jump_label_patch+0xe8/0x480 arch/x86/kernel/jump_label.c:45
arch_jump_label_transform_queue+0x64/0xf0 arch/x86/kernel/jump_label.c:137
__jump_label_update+0x177/0x3a0 kernel/jump_label.c:475
static_key_disable_cpuslocked+0xce/0x1b0 kernel/jump_label.c:235
static_key_disable+0x1a/0x20 kernel/jump_label.c:243
toggle_allocation_gate+0x1b8/0x250 mm/kfence/core.c:835
process_one_work+0x781/0x1130 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0xabf/0x1060 kernel/workqueue.c:2784
kthread+0x2b8/0x350 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304