INFO: task kworker/u8:3:52 blocked for more than 143 seconds.
Not tainted 6.12.0-next-20241125-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:3 state:D stack:21528 pid:52 tgid:52 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn (flush-8:0)
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
io_schedule+0x8d/0x110 kernel/sched/core.c:7681
bit_wait_io+0x12/0xd0 kernel/sched/wait_bit.c:247
__wait_on_bit+0xb0/0x2f0 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0x1d5/0x260 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
do_get_write_access+0x121/0xe60 fs/jbd2/transaction.c:1096
jbd2_journal_get_write_access+0x1ee/0x240 fs/jbd2/transaction.c:1245
__ext4_journal_get_write_access+0x1c8/0x680 fs/ext4/ext4_jbd2.c:239
ext4_mb_mark_context+0x196/0xfb0 fs/ext4/mballoc.c:4003
ext4_mb_mark_diskspace_used+0x3c8/0x960 fs/ext4/mballoc.c:4133
ext4_mb_new_blocks+0x1494/0x4e30 fs/ext4/mballoc.c:6235
ext4_ext_map_blocks+0x1beb/0x7e40 fs/ext4/extents.c:4379
ext4_map_create_blocks fs/ext4/inode.c:516 [inline]
ext4_map_blocks+0x8bf/0x1990 fs/ext4/inode.c:702
mpage_map_one_extent fs/ext4/inode.c:2219 [inline]
mpage_map_and_submit_extent fs/ext4/inode.c:2272 [inline]
ext4_do_writepages+0x20ef/0x3d10 fs/ext4/inode.c:2735
ext4_writepages+0x213/0x3c0 fs/ext4/inode.c:2824
do_writepages+0x35f/0x880 mm/page-writeback.c:2702
__writeback_single_inode+0x14f/0x10d0 fs/fs-writeback.c:1680
writeback_sb_inodes+0x80c/0x1370 fs/fs-writeback.c:1976
__writeback_inodes_wb+0x11b/0x260 fs/fs-writeback.c:2047
wb_writeback+0x427/0xbc0 fs/fs-writeback.c:2158
wb_check_old_data_flush fs/fs-writeback.c:2262 [inline]
wb_do_writeback fs/fs-writeback.c:2315 [inline]
wb_workfn+0xba1/0x1090 fs/fs-writeback.c:2343
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 jbd2/sda1-8:5167 blocked for more than 144 seconds.
Not tainted 6.12.0-next-20241125-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jbd2/sda1-8 state:D stack:23856 pid:5167 tgid:5167 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
io_schedule+0x8d/0x110 kernel/sched/core.c:7681
bit_wait_io+0x12/0xd0 kernel/sched/wait_bit.c:247
__wait_on_bit+0xb0/0x2f0 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0x1d5/0x260 kernel/sched/wait_bit.c:64
wait_on_buffer include/linux/buffer_head.h:414 [inline]
jbd2_journal_commit_transaction+0x34cb/0x66d0 fs/jbd2/commit.c:810
kjournald2+0x41c/0x7b0 fs/jbd2/journal.c:201
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-executor:5817 blocked for more than 144 seconds.
Not tainted 6.12.0-next-20241125-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:20400 pid:5817 tgid:5817 ppid:5815 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
io_schedule+0x8d/0x110 kernel/sched/core.c:7681
bit_wait_io+0x12/0xd0 kernel/sched/wait_bit.c:247
__wait_on_bit+0xb0/0x2f0 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0x1d5/0x260 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:105 [inline]
do_get_write_access+0x121/0xe60 fs/jbd2/transaction.c:1096
jbd2_journal_get_write_access+0x1ee/0x240 fs/jbd2/transaction.c:1245
__ext4_journal_get_write_access+0x1c8/0x680 fs/ext4/ext4_jbd2.c:239
ext4_reserve_inode_write+0x271/0x360 fs/ext4/inode.c:5830
__ext4_mark_inode_dirty+0x1ec/0x880 fs/ext4/inode.c:6004
ext4_dirty_inode+0xce/0x110 fs/ext4/inode.c:6041
__mark_inode_dirty+0x2ee/0xe90 fs/fs-writeback.c:2515
generic_update_time fs/inode.c:2112 [inline]
inode_update_time fs/inode.c:2125 [inline]
__file_update_time fs/inode.c:2353 [inline]
file_update_time+0x3d2/0x450 fs/inode.c:2383
ext4_page_mkwrite+0x206/0xdf0 fs/ext4/inode.c:6159
do_page_mkwrite+0x198/0x480 mm/memory.c:3176
do_shared_fault mm/memory.c:5398 [inline]
do_fault mm/memory.c:5460 [inline]
do_pte_missing mm/memory.c:3979 [inline]
handle_pte_fault+0x122e/0x66b0 mm/memory.c:5801
__handle_mm_fault mm/memory.c:5944 [inline]
handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6112
do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x459/0x8c0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f1f37b4654a
RSP: 002b:00007fff603d7858 EFLAGS: 00010206
RAX: 00007f1f34400000 RBX: 0000555563da5c80 RCX: 000000000000c363
RDX: 000000000001f363 RSI: 0000555563e87530 RDI: 00007f1f34413000
RBP: 0000555563da5f80 R08: 00007f1f34400000 R09: 0000555563db71e0
R10: a4418e8142d6ec07 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000000 R14: 00007fff603d7870 R15: 0000000000000000
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-next-20241125-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: 1160 Comm: kworker/u8:6 Not tainted 6.12.0-next-20241125-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: bat_events batadv_nc_worker
RIP: 0010:kasan_mem_to_shadow include/linux/kasan.h:64 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:130 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x4f/0x290 mm/kasan/generic.c:189
Code: 89 fd 48 c1 ed 2f 81 fd fe ff 01 00 0f 86 43 02 00 00 48 89 fb 48 c1 eb 03 49 ba 00 00 00 00 00 fc ff df 4e 8d 1c 13 49 ff c8 <4d> 89 c1 49 c1 e9 03 49 be 01 00 00 00 00 fc ff df 4f 8d 3c 31 4c
RSP: 0018:ffffc9000429f9f0 EFLAGS: 00000282
RAX: 0000000000000001 RBX: 1ffffffff20332c6 RCX: ffffffff817ad260
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90199630
RBP: 000000000001ffff R08: ffffffff90199637 R09: 1ffffffff20332c6
R10: dffffc0000000000 R11: fffffbfff20332c6 R12: 1ffff92000853f50
R13: ffffffff8b9f5eeb R14: ffff888031d0ce40 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055dde5ab9600 CR3: 000000000e736000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
cpumask_test_cpu include/linux/cpumask.h:570 [inline]
cpu_online include/linux/cpumask.h:1117 [inline]
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0xb0/0xa30 kernel/locking/lockdep.c:5860
rcu_lock_release include/linux/rcupdate.h:347 [inline]
rcu_read_unlock include/linux/rcupdate.h:880 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline]
batadv_nc_worker+0x28b/0x610 net/batman-adv/network-coding.c:719
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