INFO: task jbd2/sda1-8:5169 blocked for more than 143 seconds.
Tainted: G U 6.13.0-syzkaller-09485-g72deda0abee6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jbd2/sda1-8 state:D stack:26704 pid:5169 tgid:5169 ppid:2 task_flags:0x240040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5377 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6764
__schedule_loop kernel/sched/core.c:6841 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6856
io_schedule+0xbf/0x130 kernel/sched/core.c:7689
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
__wait_on_buffer+0x64/0x70 fs/buffer.c:123
wait_on_buffer include/linux/buffer_head.h:414 [inline]
jbd2_journal_commit_transaction+0x3823/0x6760 fs/jbd2/commit.c:810
kjournald2+0x1f8/0x760 fs/jbd2/journal.c:201
kthread+0x3af/0x750 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task syz-executor:5819 blocked for more than 143 seconds.
Tainted: G U 6.13.0-syzkaller-09485-g72deda0abee6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:22720 pid:5819 tgid:5819 ppid:5817 task_flags:0x440100 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5377 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6764
__schedule_loop kernel/sched/core.c:6841 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6856
io_schedule+0xbf/0x130 kernel/sched/core.c:7689
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
__ext4_journal_get_write_access+0x6a/0x340 fs/ext4/ext4_jbd2.c:239
ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5831
__ext4_mark_inode_dirty+0x1ab/0x860 fs/ext4/inode.c:6005
ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:6042
__mark_inode_dirty+0x1ec/0xe50 fs/fs-writeback.c:2515
generic_update_time+0xcf/0xf0 fs/inode.c:2112
inode_update_time fs/inode.c:2125 [inline]
__file_update_time fs/inode.c:2353 [inline]
file_update_time+0x17d/0x1c0 fs/inode.c:2383
ext4_page_mkwrite+0x368/0x1760 fs/ext4/inode.c:6160
do_page_mkwrite+0x177/0x380 mm/memory.c:3244
wp_page_shared mm/memory.c:3645 [inline]
do_wp_page+0xc0f/0x4560 mm/memory.c:3795
handle_pte_fault mm/memory.c:5905 [inline]
__handle_mm_fault+0x1c7c/0x2c60 mm/memory.c:6032
handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6201
do_user_addr_fault+0x60d/0x13f0 arch/x86/mm/fault.c:1338
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f0b1907623f
RSP: 002b:00007ffea17744e0 EFLAGS: 00010202
RAX: 00007f0b17320000 RBX: 0000555565c2c6b0 RCX: 0000000000000006
RDX: 1ffffffff11c6dae RSI: 0000555565c2ff38 RDI: 0000000000000040
RBP: 00007ffea17747d0 R08: 0000555565c2ff38 R09: 0000000000000db5
R10: 0000000000000001 R11: 00007ffea17749e0 R12: 00007ffea1774830
R13: 0000000000000004 R14: 00007ffea1774550 R15: 00007ffea1774620
INFO: task syz.0.868:9261 blocked for more than 144 seconds.
Tainted: G U 6.13.0-syzkaller-09485-g72deda0abee6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.868 state:D stack:25232 pid:9261 tgid:9261 ppid:5830 task_flags:0x440040 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5377 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6764
__schedule_loop kernel/sched/core.c:6841 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6856
io_schedule+0xbf/0x130 kernel/sched/core.c:7689
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
__ext4_journal_get_write_access+0x6a/0x340 fs/ext4/ext4_jbd2.c:239
ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5831
__ext4_mark_inode_dirty+0x1ab/0x860 fs/ext4/inode.c:6005
ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:6042
__mark_inode_dirty+0x1ec/0xe50 fs/fs-writeback.c:2515
generic_update_time+0xcf/0xf0 fs/inode.c:2112
inode_update_time fs/inode.c:2125 [inline]
__file_update_time fs/inode.c:2353 [inline]
file_update_time+0x17d/0x1c0 fs/inode.c:2383
ext4_page_mkwrite+0x368/0x1760 fs/ext4/inode.c:6160
do_page_mkwrite+0x177/0x380 mm/memory.c:3244
do_shared_fault mm/memory.c:5468 [inline]
do_fault mm/memory.c:5530 [inline]
do_pte_missing+0x29e/0x3e10 mm/memory.c:4047
handle_pte_fault mm/memory.c:5889 [inline]
__handle_mm_fault+0x1166/0x2c60 mm/memory.c:6032
handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6201
do_user_addr_fault+0x60d/0x13f0 arch/x86/mm/fault.c:1338
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f4f6c46d11a
RSP: 002b:00007ffe42561fb0 EFLAGS: 00010202
RAX: 0000001b30012000 RBX: 00007f4f6d2d5720 RCX: 0000001b30011ff8
RDX: 0000001b2fc20220 RSI: 0000000000000008 RDI: 00007f4f6d2d5720
RBP: ffffffff81b4cf8b R08: 00007f4f6c7a6038 R09: 00007f4f6c792000
R10: 00007f4f6bbff008 R11: 0000000000000009 R12: 0000000000000009
R13: 0000000000000070 R14: ffffffff81b4c452 R15: 0000000000000073
INFO: task syz.2.869:9265 blocked for more than 144 seconds.
Tainted: G U 6.13.0-syzkaller-09485-g72deda0abee6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.869 state:D stack:24272 pid:9265 tgid:9265 ppid:5838 task_flags:0x440040 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5377 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6764
__schedule_loop kernel/sched/core.c:6841 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6856
io_schedule+0xbf/0x130 kernel/sched/core.c:7689
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
__ext4_journal_get_write_access+0x6a/0x340 fs/ext4/ext4_jbd2.c:239
ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5831
__ext4_mark_inode_dirty+0x1ab/0x860 fs/ext4/inode.c:6005
ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:6042
__mark_inode_dirty+0x1ec/0xe50 fs/fs-writeback.c:2515
generic_update_time+0xcf/0xf0 fs/inode.c:2112
inode_update_time fs/inode.c:2125 [inline]
__file_update_time fs/inode.c:2353 [inline]
file_update_time+0x17d/0x1c0 fs/inode.c:2383
ext4_page_mkwrite+0x368/0x1760 fs/ext4/inode.c:6160
do_page_mkwrite+0x177/0x380 mm/memory.c:3244
do_shared_fault mm/memory.c:5468 [inline]
do_fault mm/memory.c:5530 [inline]
do_pte_missing+0x29e/0x3e10 mm/memory.c:4047
handle_pte_fault mm/memory.c:5889 [inline]
__handle_mm_fault+0x1166/0x2c60 mm/memory.c:6032
handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6201
do_user_addr_fault+0x60d/0x13f0 arch/x86/mm/fault.c:1338
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7ffac8e6d11a
RSP: 002b:00007fff6686c0b0 EFLAGS: 00010202
RAX: 0000001b30200000 RBX: 00007ffac9cd5720 RCX: 0000001b301ffff8
RDX: 0000001b2fe20220 RSI: 0000000000000008 RDI: 00007ffac9cd5720
RBP: ffffffff815edcb1 R08: 00007ffac91a61f8 R09: 00007ffac9192000
R10: 00007ffac7dfb008 R11: 0000000000000017 R12: 0000000000000017
R13: 00000000000006e4 R14: ffffffff815edaac R15: 00000000000366ec
INFO: task syz.1.871:9275 blocked for more than 144 seconds.
Tainted: G U 6.13.0-syzkaller-09485-g72deda0abee6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.871 state:D stack:28368 pid:9275 tgid:9275 ppid:5828 task_flags:0x440040 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5377 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6764
__schedule_loop kernel/sched/core.c:6841 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6856
io_schedule+0xbf/0x130 kernel/sched/core.c:7689
bit_wait_io+0x15/0xe0 kernel/sched/wait_bit.c:247
__wait_on_bit+0x62/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0xda/0x110 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
do_get_write_access+0x933/0x1270 fs/jbd2/transaction.c:1096
jbd2_journal_get_write_access+0x1d6/0x280 fs/jbd2/transaction.c:1245
__ext4_journal_get_write_access+0x6a/0x340 fs/ext4/ext4_jbd2.c:239
ext4_reserve_inode_write+0x13b/0x270 fs/ext4/inode.c:5831
__ext4_mark_inode_dirty+0x1ab/0x860 fs/ext4/inode.c:6005
ext4_dirty_inode+0xd9/0x130 fs/ext4/inode.c:6042
__mark_inode_dirty+0x1ec/0xe50 fs/fs-writeback.c:2515
generic_update_time+0xcf/0xf0 fs/inode.c:2112
inode_update_time fs/inode.c:2125 [inline]
__file_update_time fs/inode.c:2353 [inline]
file_update_time+0x17d/0x1c0 fs/inode.c:2383
ext4_page_mkwrite+0x368/0x1760 fs/ext4/inode.c:6160
do_page_mkwrite+0x177/0x380 mm/memory.c:3244
do_shared_fault mm/memory.c:5468 [inline]
do_fault mm/memory.c:5530 [inline]
do_pte_missing+0x29e/0x3e10 mm/memory.c:4047
handle_pte_fault mm/memory.c:5889 [inline]
__handle_mm_fault+0x1166/0x2c60 mm/memory.c:6032
handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6201
do_user_addr_fault+0x60d/0x13f0 arch/x86/mm/fault.c:1338
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f28eb463c52
RSP: 002b:00007ffcbb9c6fe0 EFLAGS: 00010246
RAX: 00000000003ffde8 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000001b2fd20000 RSI: 0000000000400000 RDI: 00007f28eb6967b0
RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000040000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 00000000000927c0 R14: 0000000000041e88 R15: 00007ffcbb9c72a0
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e1bc040 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e1bc040 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e1bc040 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6746
2 locks held by klogd/5196:
#0: ffff8880b863ed18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:598
#1: ffff8880b8628a88 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:598
3 locks held by syz-executor/5819:
#0: ffff888031c39b68 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:717 [inline]
#0: ffff888031c39b68 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x13e/0x980 mm/memory.c:6367
#1: ffff888034a10518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x177/0x380 mm/memory.c:3244
#2: ffff888034a14950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448
6 locks held by kworker/u8:19/6917:
#0: ffff8880212bc948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x12cd/0x1b30 kernel/workqueue.c:3211
#1: ffffc9001930fd18 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8bb/0x1b30 kernel/workqueue.c:3212
#2: ffff888034a100e0 (&type->s_umount_key#32){++++}-{4:4}, at: super_trylock_shared+0x1e/0xf0 fs/super.c:562
#3: ffff888034a12b98 (&sbi->s_writepages_rwsem){++++}-{0:0}, at: do_writepages+0x1b3/0x820 mm/page-writeback.c:2687
#4: ffff888034a14950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448
#5: ffff8880780bc7e0 (&ei->i_data_sem){++++}-{4:4}, at: ext4_map_blocks+0x352/0x1370 fs/ext4/inode.c:701
2 locks held by getty/7750:
#0: ffff8880310b50a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90004d1b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211
3 locks held by kworker/u8:31/9056:
3 locks held by syz.0.868/9261:
#0: ffff8880290a24a8 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:717 [inline]
#0: ffff8880290a24a8 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x13e/0x980 mm/memory.c:6367
#1: ffff888034a10518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x177/0x380 mm/memory.c:3244
#2: ffff888034a14950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448
3 locks held by syz.2.869/9265:
#0: ffff888029363ec8 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:717 [inline]
#0: ffff888029363ec8 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x13e/0x980 mm/memory.c:6367
#1: ffff888034a10518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x177/0x380 mm/memory.c:3244
#2: ffff888034a14950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448
3 locks held by syz.1.871/9275:
#0: ffff888034048df0 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:717 [inline]
#0: ffff888034048df0 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x13e/0x980 mm/memory.c:6367
#1: ffff888034a10518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x177/0x380 mm/memory.c:3244
#2: ffff888034a14950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf6c/0x1430 fs/jbd2/transaction.c:448
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Tainted: G U 6.13.0-syzkaller-09485-g72deda0abee6 #0
Tainted: [U]=USER
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:236 [inline]
watchdog+0xf62/0x12b0 kernel/hung_task.c:399
kthread+0x3af/0x750 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
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:106 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:111