INFO: task syz-executor.0:31838 blocked for more than 143 seconds.
Not tainted 5.19.0-rc2-syzkaller-00060-g30306f6194ca #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:26776 pid:31838 ppid: 3645 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
io_schedule+0xba/0x130 kernel/sched/core.c:8615
folio_wait_bit_common+0x4f2/0xa90 mm/filemap.c:1324
folio_wait_bit mm/filemap.c:1473 [inline]
folio_wait_locked include/linux/pagemap.h:1028 [inline]
folio_wait_locked include/linux/pagemap.h:1025 [inline]
do_read_cache_folio+0x4ff/0x760 mm/filemap.c:3521
do_read_cache_page mm/filemap.c:3593 [inline]
read_cache_page+0x59/0x2a0 mm/filemap.c:3602
read_mapping_page include/linux/pagemap.h:759 [inline]
read_part_sector+0xf6/0x920 block/partitions/core.c:715
adfspart_check_ICS+0x9a/0x690 block/partitions/acorn.c:360
check_partition block/partitions/core.c:147 [inline]
blk_add_partitions block/partitions/core.c:600 [inline]
bdev_disk_changed block/partitions/core.c:686 [inline]
bdev_disk_changed+0x629/0xf60 block/partitions/core.c:653
blkdev_get_whole+0x18a/0x2d0 block/bdev.c:686
blkdev_get_by_dev.part.0+0x5ec/0xb90 block/bdev.c:823
blkdev_get_by_dev+0x6b/0x80 block/bdev.c:857
blkdev_open+0x13c/0x2c0 block/fops.c:481
do_dentry_open+0x4a1/0x11f0 fs/open.c:848
do_open fs/namei.c:3520 [inline]
path_openat+0x1c71/0x2910 fs/namei.c:3653
do_filp_open+0x1aa/0x400 fs/namei.c:3680
do_sys_openat2+0x16d/0x4c0 fs/open.c:1278
do_sys_open fs/open.c:1294 [inline]
__do_sys_openat fs/open.c:1310 [inline]
__se_sys_openat fs/open.c:1305 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1305
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fbb5823c024
RSP: 002b:00007fbb59382ca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007fbb5823c024
RDX: 0000000000000000 RSI: 00007fbb59382d40 RDI: 00000000ffffff9c
RBP: 00007fbb59382d40 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ffc033c3c5f R14: 00007fbb59383300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by ksoftirqd/1/22:
#0: ffff8880b9b39fd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:544
1 lock held by khungtaskd/29:
#0: ffffffff8bd84020 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6491
2 locks held by udevd/2978:
2 locks held by getty/3287:
#0: ffff888022fb6098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90001c382e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 drivers/tty/n_tty.c:2124
1 lock held by syz-executor.0/31838:
#0: ffff88801e4fa118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb90 block/bdev.c:814
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 5.19.0-rc2-syzkaller-00060-g30306f6194ca #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+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc22/0xf90 kernel/hung_task.c:378
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 25463 Comm: kworker/u4:1 Not tainted 5.19.0-rc2-syzkaller-00060-g30306f6194ca #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
RIP: 0010:__lock_acquire+0xbeb/0x5660 kernel/locking/lockdep.c:5050
Code: 00 a9 67 90 e8 36 a3 68 00 48 0f a3 1d 9e 81 0a 0f 0f 83 c6 0c 00 00 48 8d 1c 5b 48 c1 e3 06 48 81 c3 20 ad 67 90 48 8d 7b 40 <48> b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f
RSP: 0018:ffffc90006197a38 EFLAGS: 00000082
RAX: 0000000000000001 RBX: ffffffff9067ce20 RCX: ffffffff815d275a
RDX: fffffbfff20cf521 RSI: 0000000000000008 RDI: ffffffff9067ce60
RBP: 0000000000000004 R08: 0000000000000000 R09: ffffffff9067a907
R10: fffffbfff20cf520 R11: 0000000000000001 R12: ffff8880211decb0
R13: ffff8880211de200 R14: 0000000000000000 R15: b89dd58e5d211294
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0045759b0 CR3: 000000007d947000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
rcu_lock_acquire include/linux/rcupdate.h:269 [inline]
rcu_read_lock include/linux/rcupdate.h:695 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0x12d/0xfa0 net/batman-adv/network-coding.c:719
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
----------------
Code disassembly (best guess):
0: 00 a9 67 90 e8 36 add %ch,0x36e89067(%rcx)
6: a3 68 00 48 0f a3 1d movabs %eax,0x819e1da30f480068
d: 9e 81
f: 0a 0f or (%rdi),%cl
11: 0f 83 c6 0c 00 00 jae 0xcdd
17: 48 8d 1c 5b lea (%rbx,%rbx,2),%rbx
1b: 48 c1 e3 06 shl $0x6,%rbx
1f: 48 81 c3 20 ad 67 90 add $0xffffffff9067ad20,%rbx
26: 48 8d 7b 40 lea 0x40(%rbx),%rdi
* 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction
31: fc ff df
34: 48 89 fa mov %rdi,%rdx
37: 48 c1 ea 03 shr $0x3,%rdx
3b: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
3f: 0f .byte 0xf