INFO: task syz-executor.0:3927 blocked for more than 143 seconds.
Not tainted 6.3.0-syzkaller-12570-g7df047b3f0aa #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:24992 pid:3927 ppid:5024 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
io_schedule+0x8c/0x100 kernel/sched/core.c:8979
bit_wait_io+0x12/0xc0 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0xbd/0x1a0 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0x1d4/0x250 kernel/sched/wait_bit.c:117
wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline]
__lock_buffer fs/buffer.c:70 [inline]
lock_buffer include/linux/buffer_head.h:406 [inline]
__sync_dirty_buffer+0x120/0x380 fs/buffer.c:2807
__ext4_handle_dirty_metadata+0x2a6/0x820 fs/ext4/ext4_jbd2.c:387
ext4_convert_inline_data_nolock+0xaba/0xd80 fs/ext4/inline.c:1252
ext4_convert_inline_data+0x4da/0x620 fs/ext4/inline.c:2063
ext4_page_mkwrite+0x288/0x1290 fs/ext4/inode.c:6044
do_page_mkwrite+0x1a4/0x600 mm/memory.c:2931
wp_page_shared mm/memory.c:3280 [inline]
do_wp_page+0x501/0x3690 mm/memory.c:3362
handle_pte_fault mm/memory.c:4964 [inline]
__handle_mm_fault mm/memory.c:5089 [inline]
handle_mm_fault+0x2371/0x5860 mm/memory.c:5243
do_user_addr_fault arch/x86/mm/fault.c:1440 [inline]
handle_page_fault arch/x86/mm/fault.c:1534 [inline]
exc_page_fault+0x7d2/0x910 arch/x86/mm/fault.c:1590
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7fa56dc86cc5
RSP: 002b:00007fff6d7b5718 EFLAGS: 00010206
RAX: 00000000200000c0 RBX: 0000000000000000 RCX: 00000000004e455a
RDX: 0000000000000007 RSI: 000000005a4f5246 RDI: 00000000200000c0
RBP: 00007fff6d7b57d8 R08: 00007fa56dc00000 R09: 00007fa56d800000
R10: 00007fa56d8015d0 R11: 000000000003fed8 R12: 0000000000164b59
R13: 00007fff6d7b5800 R14: 00007fff6d7b5820 R15: 0000000000000032
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cf277b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8cf27b70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/28:
#0: ffffffff8cf275e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:2/41:
#0: ffff888145245938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
#1: ffffc90000b27d20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
#2: ffff8880142760e0 (&type->s_umount_key#41){.+.+}-{3:3}, at: trylock_super+0x1f/0xf0 fs/super.c:414
2 locks held by kworker/u4:4/62:
2 locks held by getty/4753:
#0: ffff88802ccf2098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176
2 locks held by kworker/u4:8/1321:
4 locks held by syz-executor.0/3927:
#0: ffff88801e042568 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:161 [inline]
#0: ffff88801e042568 (&mm->mmap_lock){++++}-{3:3}, at: do_user_addr_fault arch/x86/mm/fault.c:1381 [inline]
#0: ffff88801e042568 (&mm->mmap_lock){++++}-{3:3}, at: handle_page_fault arch/x86/mm/fault.c:1534 [inline]
#0: ffff88801e042568 (&mm->mmap_lock){++++}-{3:3}, at: exc_page_fault+0x1b9/0x910 arch/x86/mm/fault.c:1590
#1: ffff88802063e558 (sb_pagefaults){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1494 [inline]
#1: ffff88802063e558 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs.h:1598 [inline]
#1: ffff88802063e558 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x244/0x1290 fs/ext4/inode.c:6039
#2: ffff888078a8dfa0 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:830 [inline]
#2: ffff888078a8dfa0 (mapping.invalidate_lock){++++}-{3:3}, at: ext4_page_mkwrite+0x27b/0x1290 fs/ext4/inode.c:6042
#3: ffff888078a8dac8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
#3: ffff888078a8dac8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x3b6/0x620 fs/ext4/inline.c:2061
1 lock held by syz-executor.0/4062:
#0: ffff88801ec3e4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x145/0xa30 block/bdev.c:736
1 lock held by syz-executor.2/5397:
#0: ffff88801ec3e4c8 (&disk->open_mutex){+.+.}-{3:3}, at: sync_bdevs+0x1a9/0x320 block/bdev.c:975
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.3.0-syzkaller-12570-g7df047b3f0aa #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
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+0x187/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 1216 Comm: aoe_tx0 Not tainted 6.3.0-syzkaller-12570-g7df047b3f0aa #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:__sanitizer_cov_trace_switch+0x97/0x110 kernel/kcov.c:340
Code: 00 00 41 b8 05 00 00 00 4d 85 d2 0f 84 8a 00 00 00 4c 8b 4c 24 20 65 4c 8b 1d 05 23 78 7e 31 d2 eb 08 48 ff c2 49 39 d2 74 71 <4c> 8b 74 d6 10 65 8b 05 f5 22 78 7e a9 00 01 ff 00 74 11 a9 00 01
RSP: 0018:ffffc90005796dd8 EFLAGS: 00000212
RAX: 0000000000000000 RBX: 0000000000000004 RCX: ffff888021945940
RDX: 0000000000000005 RSI: ffffffff8e3ee7e0 RDI: 0000000000000009
RBP: ffffc90005796ef0 R08: 0000000000000001 R09: ffffffff8aa8ea9f
R10: 0000000000000012 R11: ffff888021945940 R12: ffffffff8aeb4ce5
R13: dffffc0000000000 R14: 0000000000000004 R15: ffffffff8aeb4ce1
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f01c7485440 CR3: 000000000cd30000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
vsnprintf+0x17f/0x1d80 lib/vsprintf.c:2773
sprintf+0xda/0x120 lib/vsprintf.c:3021
print_time kernel/printk/printk.c:1327 [inline]
info_print_prefix+0x16b/0x300 kernel/printk/printk.c:1353
record_print_text kernel/printk/printk.c:1402 [inline]
printk_get_next_message+0x408/0xce0 kernel/printk/printk.c:2809
console_emit_next_record kernel/printk/printk.c:2844 [inline]
console_flush_all+0x3aa/0xd70 kernel/printk/printk.c:2933
console_unlock+0xff/0x270 kernel/printk/printk.c:3007
vprintk_emit+0xd5/0x1f0 kernel/printk/printk.c:2307
dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4840
dev_printk_emit+0xdd/0x120 drivers/base/core.c:4851
__netdev_printk+0x3e5/0x4c0 net/core/dev.c:11263
netdev_warn+0x122/0x170 net/core/dev.c:11316
ieee802154_subif_start_xmit+0x130/0x190 net/mac802154/tx.c:245
__netdev_start_xmit include/linux/netdevice.h:4915 [inline]
netdev_start_xmit include/linux/netdevice.h:4929 [inline]
xmit_one net/core/dev.c:3578 [inline]
dev_hard_start_xmit+0x241/0x750 net/core/dev.c:3594
sch_direct_xmit+0x2b6/0x5f0 net/sched/sch_generic.c:342
__dev_xmit_skb net/core/dev.c:3805 [inline]
__dev_queue_xmit+0x18d2/0x38b0 net/core/dev.c:4210
dev_queue_xmit include/linux/netdevice.h:3085 [inline]
tx+0x6a/0x110 drivers/block/aoe/aoenet.c:63
kthread+0x238/0x440 drivers/block/aoe/aoecmd.c:1229
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308