INFO: task syz-executor.5:5956 blocked for more than 143 seconds.
Not tainted 6.7.0-rc8-next-20240105-syzkaller-12662-ge2425464bc87 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:29128 pid:5956 tgid:5955 ppid:5915 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf15/0x5c80 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0xe7/0x270 kernel/sched/core.c:6817
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6874
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b4/0x9c0 kernel/locking/mutex.c:752
blk_trace_ioctl+0xc9/0x290 kernel/trace/blktrace.c:736
blkdev_ioctl+0x111/0x760 block/ioctl.c:625
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl fs/ioctl.c:857 [inline]
__x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:857
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd0/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7f8e4b27cae9
RSP: 002b:00007f8e4bff10c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f8e4b39bf80 RCX: 00007f8e4b27cae9
RDX: 0000000020000380 RSI: 00000000c0481273 RDI: 0000000000000004
RBP: 00007f8e4b2c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f8e4b39bf80 R15: 00007ffd92413fc8
INFO: task syz-executor.5:5957 blocked for more than 143 seconds.
Not tainted 6.7.0-rc8-next-20240105-syzkaller-12662-ge2425464bc87 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:30200 pid:5957 tgid:5955 ppid:5915 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf15/0x5c80 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0xe7/0x270 kernel/sched/core.c:6817
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6874
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b4/0x9c0 kernel/locking/mutex.c:752
blk_trace_ioctl+0xc9/0x290 kernel/trace/blktrace.c:736
blkdev_common_ioctl+0x1590/0x1cc0 block/ioctl.c:565
blkdev_ioctl+0x243/0x760 block/ioctl.c:630
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl fs/ioctl.c:857 [inline]
__x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:857
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd0/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x62/0x6a
RIP: 0033:0x7f8e4b27cae9
RSP: 002b:00007f8e4bfd00c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f8e4b39c050 RCX: 00007f8e4b27cae9
RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000004
RBP: 00007f8e4b2c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8e4b39c050 R15: 00007ffd92413fc8
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc8-next-20240105-syzkaller-12662-ge2425464bc87 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x299/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xf86/0x1210 kernel/hung_task.c:379
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 135 Comm: kworker/u4:5 Not tainted 6.7.0-rc8-next-20240105-syzkaller-12662-ge2425464bc87 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
RIP: 0010:__sanitizer_cov_trace_pc+0x18/0x60 kernel/kcov.c:203
Code: ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 65 48 8b 15 c4 9e 7b 7e 65 8b 05 c5 9e 7b 7e a9 00 01 ff 00 <48> 8b 34 24 74 0f f6 c4 01 74 35 8b 82 fc 15 00 00 85 c0 74 2b 8b
RSP: 0018:ffffc90002577640 EFLAGS: 00000246
RAX: 0000000080000202 RBX: ffffffff8f4b6abc RCX: ffffffff813a3a05
RDX: ffff88801af8bb80 RSI: ffffffff813a3a12 RDI: 0000000000000005
RBP: ffffffff8f4b6abc R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 2400ff003eaaaaaa R12: ffffffff815600e5
R13: ffffffff8fc78ff4 R14: dffffc0000000000 R15: ffffc9000257774d
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc00900ed58 CR3: 000000000cf78000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__orc_find+0x7a/0x130 arch/x86/kernel/unwind_orc.c:100
orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
unwind_next_frame+0x329/0x2390 arch/x86/kernel/unwind_orc.c:494
arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x50 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:634
poison_slab_object mm/kasan/common.c:241 [inline]
__kasan_slab_free+0x121/0x1b0 mm/kasan/common.c:257
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2121 [inline]
slab_free mm/slub.c:4299 [inline]
kfree+0x129/0x370 mm/slub.c:4409
batadv_tvlv_realloc_packet_buff net/batman-adv/tvlv.c:290 [inline]
batadv_tvlv_container_ogm_append+0x1c1/0x510 net/batman-adv/tvlv.c:324
batadv_iv_ogm_schedule_buff+0x1195/0x14f0 net/batman-adv/bat_iv_ogm.c:812
batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:868 [inline]
batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:861 [inline]
batadv_iv_send_outstanding_bat_ogm_packet+0x31e/0x8d0 net/batman-adv/bat_iv_ogm.c:1712
process_one_work+0x8a4/0x15f0 kernel/workqueue.c:2633
process_scheduled_works kernel/workqueue.c:2706 [inline]
worker_thread+0x8b6/0x1290 kernel/workqueue.c:2787
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242