INFO: task jbd2/sda1-8:2934 blocked for more than 143 seconds.
Not tainted 5.16.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jbd2/sda1-8 state:D stack:26144 pid: 2934 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
jbd2_journal_commit_transaction+0x89e/0x6be0 fs/jbd2/commit.c:496
kjournald2+0x1d0/0x930 fs/jbd2/journal.c:213
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8bb83e20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
2 locks held by getty/3285:
#0: ffff88814ad95098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:252
#1: ffffc90002b962e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2113
3 locks held by syz-executor.1/3629:
#0: ffff88814afba460 (sb_writers#5){.+.+}-{0:0}, at: filename_create+0xf3/0x480 fs/namei.c:3649
#1: ffff8880746fabd0 (&type->i_mutex_dir_key#4/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:818 [inline]
#1: ffff8880746fabd0 (&type->i_mutex_dir_key#4/1){+.+.}-{3:3}, at: filename_create+0x158/0x480 fs/namei.c:3654
#2: ffff88814afbe990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xf82/0x1380 fs/jbd2/transaction.c:466
4 locks held by kworker/u4:63/22014:
#0: ffff8880b9c39a98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:478
#1: ffffc9000546fdb0 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
#2: ffff8880b9c28298 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x5a/0x1f0 kernel/time/timer.c:946
#3: ffffffff8bb83e20 (rcu_read_lock){....}-{1:2}, at: batadv_iv_ogm_slide_own_bcast_window net/batman-adv/bat_iv_ogm.c:753 [inline]
#3: ffffffff8bb83e20 (rcu_read_lock){....}-{1:2}, at: batadv_iv_ogm_schedule_buff+0x598/0x1430 net/batman-adv/bat_iv_ogm.c:826
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:295
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3673 Comm: kworker/0:8 Not tainted 5.16.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:__sanitizer_cov_trace_cmp8+0xc/0x70 kernel/kcov.c:266
Code: 4c 38 f0 48 c7 44 38 e0 04 00 00 00 48 89 74 38 e8 4e 89 54 c8 20 48 89 10 c3 0f 1f 40 00 49 89 f8 bf 03 00 00 00 4c 8b 14 24 <48> 89 f1 65 48 8b 34 25 40 70 02 00 e8 c3 f7 ff ff 84 c0 74 48 48
RSP: 0018:ffffc90002b6fb20 EFLAGS: 00000282
RAX: 0000000000000000 RBX: ffff88823bd46f00 RCX: 0000000000000000
RDX: ffff888022cc0000 RSI: ffff88823bd46e1c RDI: 0000000000000003
RBP: ffff88823bd46e1c R08: ffff88823bd46f00 R09: 00000000ffffffa9
R10: ffffffff81be8cdb R11: 00000000000000a9 R12: ffffffff9051b0a0
R13: ffff88823bd46f00 R14: 00000000ffffffa9 R15: 00000000000000a9
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c003379d40 CR3: 000000000b88e000 CR4: 0000000000350ef0
Call Trace:
for_each_canary mm/kfence/core.c:345 [inline]
kfence_guarded_free+0x20b/0x930 mm/kfence/core.c:497
__kfence_free+0x70/0x150 mm/kfence/core.c:947
do_slab_free mm/slub.c:3501 [inline]
slab_free mm/slub.c:3514 [inline]
kmem_cache_free+0x4df/0x5d0 mm/slub.c:3530
kfree_skbmem+0xef/0x1b0 net/core/skbuff.c:700
__kfree_skb net/core/skbuff.c:757 [inline]
consume_skb net/core/skbuff.c:912 [inline]
consume_skb+0xcf/0x160 net/core/skbuff.c:906
nsim_dev_trap_report drivers/net/netdevsim/dev.c:818 [inline]
nsim_dev_trap_report_work+0x85d/0xbc0 drivers/net/netdevsim/dev.c:843
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: 4c 38 f0 rex.WR cmp %r14b,%al
3: 48 c7 44 38 e0 04 00 movq $0x4,-0x20(%rax,%rdi,1)
a: 00 00
c: 48 89 74 38 e8 mov %rsi,-0x18(%rax,%rdi,1)
11: 4e 89 54 c8 20 mov %r10,0x20(%rax,%r9,8)
16: 48 89 10 mov %rdx,(%rax)
19: c3 retq
1a: 0f 1f 40 00 nopl 0x0(%rax)
1e: 49 89 f8 mov %rdi,%r8
21: bf 03 00 00 00 mov $0x3,%edi
26: 4c 8b 14 24 mov (%rsp),%r10
* 2a: 48 89 f1 mov %rsi,%rcx <-- trapping instruction
2d: 65 48 8b 34 25 40 70 mov %gs:0x27040,%rsi
34: 02 00
36: e8 c3 f7 ff ff callq 0xfffff7fe
3b: 84 c0 test %al,%al
3d: 74 48 je 0x87
3f: 48 rex.W