INFO: rcu_preempt detected stalls on CPUs/tasks:
Tasks blocked on level-0 rcu_node (CPUs 0-1): P31274
(detected by 1, t=10503 jiffies, g=17608, c=17607, q=126)
syz-executor.4 R running task 27728 31274 7314 0x0000000c
Call Trace:
sched_show_task kernel/sched/core.c:5168 [inline]
sched_show_task.cold+0x2f0/0x351 kernel/sched/core.c:5143
rcu_print_detail_task_stall_rnp+0xc7/0x103 kernel/rcu/tree_plugin.h:568
rcu_print_detail_task_stall kernel/rcu/tree_plugin.h:581 [inline]
print_other_cpu_stall kernel/rcu/tree.c:1488 [inline]
check_cpu_stall kernel/rcu/tree.c:1616 [inline]
__rcu_pending kernel/rcu/tree.c:3390 [inline]
rcu_pending kernel/rcu/tree.c:3452 [inline]
rcu_check_callbacks.cold+0x74c/0xd0a kernel/rcu/tree.c:2792
update_process_times+0x31/0x70 kernel/time/timer.c:1590
tick_sched_handle+0x85/0x160 kernel/time/tick-sched.c:161
tick_sched_timer+0x43/0x130 kernel/time/tick-sched.c:1219
__run_hrtimer kernel/time/hrtimer.c:1223 [inline]
__hrtimer_run_queues+0x270/0xbc0 kernel/time/hrtimer.c:1287
hrtimer_interrupt+0x1d8/0x5d0 kernel/time/hrtimer.c:1321
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline]
smp_apic_timer_interrupt+0x11c/0x5e0 arch/x86/kernel/apic/apic.c:1100
apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
RIP: 0010:kasan_kmalloc+0x0/0xf0 mm/kasan/kasan.c:531
RSP: 0018:ffff8880aed07b20 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff10
RAX: ffff88808424f200 RBX: ffff8880aed07bc0 RCX: 0000000001090220
RDX: 0000000000000240 RSI: ffff88808424f200 RDI: ffff8880aa800ac0
RBP: ffff8880aed07b48 R08: 00000000cf7bd4ac R09: 0000000000000004
R10: 0000000000000000 R11: ffff88808398e080 R12: 0000000000000240
R13: 0000000001090220 R14: ffff8880aa800ac0 R15: ffff88808424f200
__kmalloc_reserve.isra.0+0x40/0xe0 net/core/skbuff.c:137
__alloc_skb+0xcf/0x500 net/core/skbuff.c:205
alloc_skb include/linux/skbuff.h:980 [inline]
new_skb+0x28/0x1d0 drivers/block/aoe/aoecmd.c:67
aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:427 [inline]
aoecmd_cfg+0x180/0x5c0 drivers/block/aoe/aoecmd.c:1392
discover_timer drivers/block/aoe/aoemain.c:44 [inline]
discover_timer+0xcd/0x170 drivers/block/aoe/aoemain.c:21
call_timer_fn+0x161/0x670 kernel/time/timer.c:1279
expire_timers kernel/time/timer.c:1318 [inline]
__run_timers kernel/time/timer.c:1636 [inline]
__run_timers kernel/time/timer.c:1604 [inline]
run_timer_softirq+0x5b7/0x1520 kernel/time/timer.c:1649
__do_softirq+0x244/0x9a0 kernel/softirq.c:288
invoke_softirq kernel/softirq.c:368 [inline]
irq_exit+0x160/0x1b0 kernel/softirq.c:409
exiting_irq arch/x86/include/asm/apic.h:648 [inline]
smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102
apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
RIP: 0010:preempt_schedule_common+0x0/0xe0 kernel/sched/core.c:3491
RSP: 0018:ffff88806f217898 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000282 RBX: 0000000000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000003 RDI: 0000000000000001
RBP: ffff88806f2178a0 R08: ffff88808398e080 R09: 0000000000000002
R10: 0000000000000000 R11: ffff88808398e080 R12: ffff88808824aa08
R13: ffff88808824aa08 R14: ffff8880a12df340 R15: ffff88808824a280
___preempt_schedule+0x16/0x18
__raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline]
_raw_spin_unlock+0x41/0x50 kernel/locking/spinlock.c:184
spin_unlock include/linux/spinlock.h:357 [inline]
task_unlock include/linux/sched/task.h:138 [inline]
get_task_umask fs/proc/array.c:154 [inline]
task_state fs/proc/array.c:181 [inline]
proc_pid_status+0x1e33/0x2240 fs/proc/array.c:400
proc_single_show+0xf0/0x160 fs/proc/base.c:761
seq_read+0x51a/0x1280 fs/seq_file.c:237
do_loop_readv_writev fs/read_write.c:695 [inline]
do_loop_readv_writev fs/read_write.c:682 [inline]
do_iter_read+0x3e2/0x5b0 fs/read_write.c:919
vfs_readv+0xd3/0x130 fs/read_write.c:981
do_preadv+0x15d/0x200 fs/read_write.c:1065
SYSC_preadv fs/read_write.c:1115 [inline]
SyS_preadv+0x31/0x40 fs/read_write.c:1110
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45af49
RSP: 002b:00007fd129e1ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045af49
RDX: 00000000000001a8 RSI: 00000000200017c0 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd129e1b6d4
R13: 00000000004c950f R14: 00000000004e1bd0 R15: 00000000ffffffff
syz-executor.4 R running task 27728 31274 7314 0x0000000c
Call Trace:
sched_show_task kernel/sched/core.c:5168 [inline]
sched_show_task.cold+0x2f0/0x351 kernel/sched/core.c:5143
rcu_print_detail_task_stall_rnp+0xc7/0x103 kernel/rcu/tree_plugin.h:568
rcu_print_detail_task_stall kernel/rcu/tree_plugin.h:583 [inline]
print_other_cpu_stall kernel/rcu/tree.c:1488 [inline]
check_cpu_stall kernel/rcu/tree.c:1616 [inline]
__rcu_pending kernel/rcu/tree.c:3390 [inline]
rcu_pending kernel/rcu/tree.c:3452 [inline]
rcu_check_callbacks.cold+0x7a4/0xd0a kernel/rcu/tree.c:2792
update_process_times+0x31/0x70 kernel/time/timer.c:1590
tick_sched_handle+0x85/0x160 kernel/time/tick-sched.c:161
tick_sched_timer+0x43/0x130 kernel/time/tick-sched.c:1219
__run_hrtimer kernel/time/hrtimer.c:1223 [inline]
__hrtimer_run_queues+0x270/0xbc0 kernel/time/hrtimer.c:1287
hrtimer_interrupt+0x1d8/0x5d0 kernel/time/hrtimer.c:1321
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline]
smp_apic_timer_interrupt+0x11c/0x5e0 arch/x86/kernel/apic/apic.c:1100
apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
RIP: 0010:kasan_kmalloc+0x0/0xf0 mm/kasan/kasan.c:531
RSP: 0018:ffff8880aed07b20 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff10
RAX: ffff88808424f200 RBX: ffff8880aed07bc0 RCX: 0000000001090220
RDX: 0000000000000240 RSI: ffff88808424f200 RDI: ffff8880aa800ac0
RBP: ffff8880aed07b48 R08: 00000000cf7bd4ac R09: 0000000000000004
R10: 0000000000000000 R11: ffff88808398e080 R12: 0000000000000240
R13: 0000000001090220 R14: ffff8880aa800ac0 R15: ffff88808424f200
__kmalloc_reserve.isra.0+0x40/0xe0 net/core/skbuff.c:137
__alloc_skb+0xcf/0x500 net/core/skbuff.c:205
alloc_skb include/linux/skbuff.h:980 [inline]
new_skb+0x28/0x1d0 drivers/block/aoe/aoecmd.c:67
aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:427 [inline]
aoecmd_cfg+0x180/0x5c0 drivers/block/aoe/aoecmd.c:1392
discover_timer drivers/block/aoe/aoemain.c:44 [inline]
discover_timer+0xcd/0x170 drivers/block/aoe/aoemain.c:21
call_timer_fn+0x161/0x670 kernel/time/timer.c:1279
expire_timers kernel/time/timer.c:1318 [inline]
__run_timers kernel/time/timer.c:1636 [inline]
__run_timers kernel/time/timer.c:1604 [inline]
run_timer_softirq+0x5b7/0x1520 kernel/time/timer.c:1649
__do_softirq+0x244/0x9a0 kernel/softirq.c:288
invoke_softirq kernel/softirq.c:368 [inline]
irq_exit+0x160/0x1b0 kernel/softirq.c:409
exiting_irq arch/x86/include/asm/apic.h:648 [inline]
smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102
apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
RIP: 0010:preempt_schedule_common+0x0/0xe0 kernel/sched/core.c:3491
RSP: 0018:ffff88806f217898 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000282 RBX: 0000000000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000003 RDI: 0000000000000001
RBP: ffff88806f2178a0 R08: ffff88808398e080 R09: 0000000000000002
R10: 0000000000000000 R11: ffff88808398e080 R12: ffff88808824aa08
R13: ffff88808824aa08 R14: ffff8880a12df340 R15: ffff88808824a280
___preempt_schedule+0x16/0x18
__raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline]
_raw_spin_unlock+0x41/0x50 kernel/locking/spinlock.c:184
spin_unlock include/linux/spinlock.h:357 [inline]
task_unlock include/linux/sched/task.h:138 [inline]
get_task_umask fs/proc/array.c:154 [inline]
task_state fs/proc/array.c:181 [inline]
proc_pid_status+0x1e33/0x2240 fs/proc/array.c:400
proc_single_show+0xf0/0x160 fs/proc/base.c:761
seq_read+0x51a/0x1280 fs/seq_file.c:237
do_loop_readv_writev fs/read_write.c:695 [inline]
do_loop_readv_writev fs/read_write.c:682 [inline]
do_iter_read+0x3e2/0x5b0 fs/read_write.c:919
vfs_readv+0xd3/0x130 fs/read_write.c:981
do_preadv+0x15d/0x200 fs/read_write.c:1065
SYSC_preadv fs/read_write.c:1115 [inline]
SyS_preadv+0x31/0x40 fs/read_write.c:1110
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45af49
RSP: 002b:00007fd129e1ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045af49
RDX: 00000000000001a8 RSI: 00000000200017c0 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd129e1b6d4
R13: 00000000004c950f R14: 00000000004e1bd0 R15: 00000000ffffffff