IPVS: nq: UDP 224.0.0.2:0 - no destination available
IPVS: nq: UDP 224.0.0.2:0 - no destination available
IPVS: nq: UDP 224.0.0.2:0 - no destination available
IPVS: nq: UDP 224.0.0.2:0 - no destination available
IPVS: nq: UDP 224.0.0.2:0 - no destination available
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P4969/1:b..l P13/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=149677, q=579 ncpus=1)
task:kworker/u8:1 state:R running task stack:22840 pid:13 tgid:13 ppid:2 task_flags:0x24248160 flags:0x00080000
Workqueue: writeback wb_workfn (flush-8:0)
Call Trace:
context_switch kernel/sched/core.c:5520 [inline]
__schedule+0x1259/0x6920 kernel/sched/core.c:7270
preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:7592
irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:468 [inline]
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x205/0xa10 kernel/entry/common.c:167
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:scsi_mq_set_rq_budget_token+0x3d/0x60 drivers/scsi/scsi_lib.c:1845
Code: e4 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 0d <89> ab e4 01 00 00 5b 5d e9 d6 e0 41 05 e8 51 e4 ef fb eb ec 66 66
RSP: 0018:ffffc90000126b00 EFLAGS: 00000246
RAX: 0000000000000007 RBX: ffff88802edbb400 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff868ed4d0 RDI: ffff88802edbb5e4
RBP: 00000000000000ea R08: 0000000000000000 R09: ffffed1005d56e25
R10: ffff88802eab712b R11: 0000000000000000 R12: ffff88802e4ea800
R13: dffffc0000000000 R14: ffff8880284befc0 R15: ffffc90000126be0
blk_mq_set_rq_budget_token block/blk-mq.h:284 [inline]
__blk_mq_do_dispatch_sched block/blk-mq-sched.c:130 [inline]
blk_mq_do_dispatch_sched block/blk-mq-sched.c:182 [inline]
__blk_mq_sched_dispatch_requests+0xb7a/0x1620 block/blk-mq-sched.c:307
blk_mq_sched_dispatch_requests+0xd7/0x1c0 block/blk-mq-sched.c:329
blk_mq_run_hw_queue+0x34b/0x670 block/blk-mq.c:2355
blk_mq_dispatch_list+0x51d/0x1360 block/blk-mq.c:2918
blk_mq_flush_plug_list block/blk-mq.c:2966 [inline]
blk_mq_flush_plug_list+0x130/0x600 block/blk-mq.c:2938
blk_add_rq_to_plug+0x1ca/0x540 block/blk-mq.c:1386
blk_mq_submit_bio+0x1e3a/0x3000 block/blk-mq.c:3198
__submit_bio+0x90/0x3d0 block/blk-core.c:673
__submit_bio_noacct_mq block/blk-core.c:756 [inline]
submit_bio_noacct_nocheck+0x549/0xc00 block/blk-core.c:790
submit_bio_noacct+0xc93/0x2130 block/blk-core.c:925
blk_crypto_submit_bio include/linux/blk-crypto.h:212 [inline]
ext4_io_submit+0xf7/0x1a0 fs/ext4/page-io.c:396
ext4_do_writepages+0x9d8/0x3e80 fs/ext4/inode.c:2888
ext4_writepages+0x34a/0x750 fs/ext4/inode.c:3032
do_writepages+0x278/0x600 mm/page-writeback.c:2560
__writeback_single_inode+0x164/0x1560 fs/fs-writeback.c:1788
writeback_sb_inodes+0x766/0x1c50 fs/fs-writeback.c:2099
__writeback_inodes_wb+0xf8/0x2d0 fs/fs-writeback.c:2175
wb_writeback+0x6f6/0xb50 fs/fs-writeback.c:2286
wb_check_old_data_flush fs/fs-writeback.c:2390 [inline]
wb_do_writeback fs/fs-writeback.c:2469 [inline]
wb_workfn+0x93f/0xc80 fs/fs-writeback.c:2497
process_one_work+0xac7/0x1b10 kernel/workqueue.c:3387
process_scheduled_works kernel/workqueue.c:3470 [inline]
worker_thread+0x5ef/0xe50 kernel/workqueue.c:3551
kthread+0x373/0x450 kernel/kthread.c:436
ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
task:udevd state:R running task stack:22760 pid:4969 tgid:4969 ppid:1 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5520 [inline]
__schedule+0x1259/0x6920 kernel/sched/core.c:7270
preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:7592
irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:468 [inline]
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x205/0xa10 kernel/entry/common.c:167
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__kasan_check_byte+0x6/0x50 mm/kasan/common.c:572
Code: 00 5d ba fe 00 00 00 41 5c 41 5d e9 e4 2a 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 41 54 <49> 89 f4 55 48 89 fd 53 e8 7d 1e 00 00 89 c3 84 c0 74 0b 89 d8 5b
RSP: 0018:ffffc90003dcf280 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000002
RDX: 0000000000000000 RSI: ffffffff81b98181 RDI: ffffffff8edec060
RBP: ffffffff8edec060 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000200 R11: 0000000000017314 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
kasan_check_byte include/linux/kasan.h:402 [inline]
lock_acquire kernel/locking/lockdep.c:5860 [inline]
lock_acquire+0x132/0x370 kernel/locking/lockdep.c:5843
rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
class_rcu_constructor include/linux/rcupdate.h:1216 [inline]
unwind_next_frame+0xd1/0x2090 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
kasan_save_track+0x14/0x30 mm/kasan/common.c:78
poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415
kasan_kmalloc include/linux/kasan.h:263 [inline]
__do_kmalloc_node mm/slub.c:5414 [inline]
__kmalloc_noprof+0x32f/0x840 mm/slub.c:5439
_kmalloc_noprof include/linux/slab.h:995 [inline]
tomoyo_realpath_from_path+0xb6/0x690 security/tomoyo/realpath.c:251
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_check_open_permission+0x2af/0x3c0 security/tomoyo/file.c:776
tomoyo_file_open+0x6b/0x90 security/tomoyo/tomoyo.c:334
security_file_open+0xb5/0x1e0 security/security.c:2739
do_dentry_open+0x588/0x14d0 fs/open.c:973
vfs_open+0x82/0x3f0 fs/open.c:1101
do_open fs/namei.c:4837 [inline]
path_openat+0x19fa/0x2440 fs/namei.c:5000
do_file_open+0x20e/0x430 fs/namei.c:5029
do_sys_openat2+0x10f/0x1e0 fs/open.c:1417
do_sys_open fs/open.c:1423 [inline]
__do_sys_openat fs/open.c:1439 [inline]
__se_sys_openat fs/open.c:1434 [inline]
__x64_sys_openat+0x12d/0x210 fs/open.c:1434
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc119715c3a
RSP: 002b:00007ffd81388bc8 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000558b5adc9300 RCX: 00007fc119715c3a
RDX: 0000000000090800 RSI: 0000558b5ad9e2b0 RDI: 00000000ffffff9c
RBP: 0000558b5ad9e2b0 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000206 R12: 0000558b5ada2170
R13: 00000000000000ff R14: 0000558b44ce9be0 R15: 00007ffd81388e50
rcu: rcu_preempt kthread starved for 1068 jiffies! g149677 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->cpu=0
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:27576 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5520 [inline]
__schedule+0x1259/0x6920 kernel/sched/core.c:7270
__schedule_loop kernel/sched/core.c:7347 [inline]
schedule+0xdd/0x2c0 kernel/sched/core.c:7362
schedule_timeout+0x127/0x280 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x1a9/0x8f0 kernel/rcu/tree.c:2122
rcu_gp_kthread+0x17a/0x220 kernel/rcu/tree.c:2330
kthread+0x373/0x450 kernel/kthread.c:436
ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 3223 Comm: kworker/R-bat_e Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026
Workqueue: bat_events batadv_dat_purge
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:211 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:221
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 c6 a6 16 f6 48 89 df e8 de fc 16 f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 01 00 00 00 e8 d5 06 06 f6 65 48 83 3d 64 c5 ba 08 00 74 16 5b
RSP: 0018:ffffc90000007c60 EFLAGS: 00000246
RAX: 0000000000000012 RBX: ffff88802b3ac000 RCX: 0000000000000004
RDX: 0000000000000102 RSI: ffffffff8e3eb0b9 RDI: ffffffff8c61f080
RBP: 0000000000000246 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88819c28cd10
R13: ffff88819c28cd08 R14: ffff88802b58b4a3 R15: ffff88802b58b410
FS: 0000000000000000(0000) GS:ffff888123b6d000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6c10335486 CR3: 000000002adcc000 CR4: 00000000003526f0
Call Trace:
spin_unlock_irqrestore include/linux/spinlock.h:425 [inline]
dummy_timer+0x1d89/0x3700 drivers/usb/gadget/udc/dummy_hcd.c:2036
__run_hrtimer kernel/time/hrtimer.c:2067 [inline]
__hrtimer_run_queues+0x462/0x9c0 kernel/time/hrtimer.c:2124
hrtimer_run_softirq+0x1ca/0x360 kernel/time/hrtimer.c:2141
handle_softirqs+0x1e6/0x9d0 kernel/softirq.c:645
do_softirq kernel/softirq.c:546 [inline]
do_softirq+0xaf/0xf0 kernel/softirq.c:533
__local_bh_enable_ip+0xff/0x120 kernel/softirq.c:473
spin_unlock_bh include/linux/spinlock.h:407 [inline]
__batadv_dat_purge.part.0+0x294/0x3c0 net/batman-adv/distributed-arp-table.c:252
__batadv_dat_purge net/batman-adv/distributed-arp-table.c:233 [inline]
batadv_dat_purge+0x4b/0xa0 net/batman-adv/distributed-arp-table.c:271
process_one_work+0xac7/0x1b10 kernel/workqueue.c:3387
process_scheduled_works kernel/workqueue.c:3470 [inline]
rescuer_thread+0x918/0x14e0 kernel/workqueue.c:3694
kthread+0x373/0x450 kernel/kthread.c:436
ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245