INFO: rcu_preempt self-detected stall on CPU
1-...: (10500 ticks this GP) idle=1a2/140000000000002/0 softirq=10882/10882 fqs=0
(t=10500 jiffies g=1616 c=1615 q=1327)
rcu_preempt kthread starved for 10500 jiffies! g1616 c1615 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=1
rcu_preempt R running task 29824 8 2 0x80000000
Call Trace:
context_switch kernel/sched/core.c:2808 [inline]
__schedule+0x7b8/0x1cd0 kernel/sched/core.c:3384
schedule+0x92/0x1c0 kernel/sched/core.c:3428
schedule_timeout+0x43e/0xe10 kernel/time/timer.c:1746
rcu_gp_kthread+0xbf4/0x1ec0 kernel/rcu/tree.c:2255
kthread+0x319/0x430 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
NMI backtrace for cpu 1
CPU: 1 PID: 7376 Comm: syz-executor.2 Not tainted 4.14.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x142/0x197 lib/dump_stack.c:58
nmi_cpu_backtrace.cold+0x57/0x94 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x141/0x189 lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
trigger_single_cpu_backtrace include/linux/nmi.h:158 [inline]
rcu_dump_cpu_stacks+0x186/0x1d2 kernel/rcu/tree.c:1396
print_cpu_stall kernel/rcu/tree.c:1542 [inline]
check_cpu_stall kernel/rcu/tree.c:1610 [inline]
__rcu_pending kernel/rcu/tree.c:3390 [inline]
rcu_pending kernel/rcu/tree.c:3452 [inline]
rcu_check_callbacks.cold+0x43d/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:skb_cloned include/linux/skbuff.h:1452 [inline]
RIP: 0010:__skb_pad+0x3e/0x5f0 net/core/skbuff.c:1631
RSP: 0018:ffff8880aed07c40 EFLAGS: 00000a03 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000000 RBX: 0000000000000028 RCX: 0000000000000000
RDX: ffff88808270528e RSI: 0000000000000028 RDI: ffff88808270528e
RBP: ffff8880aed07c88 R08: ffff888050294380 R09: ffff888050294cc0
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888082705200
R13: ffff8880a0c0f800 R14: 000000000000001a R15: 0000000000000286
__skb_put_padto include/linux/skbuff.h:3009 [inline]
skb_put_padto include/linux/skbuff.h:3028 [inline]
send_hsr_supervision_frame+0xbcf/0xec0 net/hsr/hsr_device.c:316
hsr_announce+0xf5/0x340 net/hsr/hsr_device.c:348
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_irq+0xab/0x140 kernel/sched/core.c:3611
RSP: 0018:ffff8880502a75e8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
RAX: 1ffffffff0fe2d2b RBX: dffffc0000000000 RCX: 1ffff1100a05298e
RDX: 0000000000000000 RSI: ffff888050294c78 RDI: ffff888050294bfc
RBP: ffff8880502a7608 R08: 0000003c62478a9f R09: ffff888050294c70
R10: 0000000000000000 R11: 0000000000000000 R12: ffffed100a052870
R13: ffff888050294380 R14: ffffffff87f16958 R15: 0000000000000000
retint_kernel+0x1b/0x2d
RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline]
RIP: 0010:get_mem_cgroup_from_mm+0x80/0x470 mm/memcontrol.c:724
RSP: 0018:ffff8880502a76c0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
RAX: ffffed10148c996b RBX: ffff8880a464c640 RCX: 1ffffffff0f831ad
RDX: 0000000000000000 RSI: ffffffff830ea93c RDI: ffff8880aed2394c
RBP: ffff8880502a76f8 R08: 0000000000000000 R09: ffff888050294c98
R10: ffff888050294c78 R11: ffff888050294380 R12: ffffea0001c98fc0
R13: dffffc0000000000 R14: 1ffff110148c996b R15: ffff8880a464cb58
mem_cgroup_try_charge+0x32d/0x530 mm/memcontrol.c:5564
__add_to_page_cache_locked+0x183/0x8c0 mm/filemap.c:764
add_to_page_cache_lru+0xf4/0x310 mm/filemap.c:830
pagecache_get_page+0x1f5/0x9e0 mm/filemap.c:1512
grab_cache_page_write_begin+0x74/0xa0 mm/filemap.c:2997
mext_page_double_lock fs/ext4/move_extent.c:156 [inline]
move_extent_per_page fs/ext4/move_extent.c:313 [inline]
ext4_move_extents+0x11ce/0x3050 fs/ext4/move_extent.c:686
ext4_ioctl+0x1d8f/0x3920 fs/ext4/ioctl.c:826
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:500 [inline]
do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45af49
RSP: 002b:00007fc6c69fac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045af49
RDX: 0000000020000040 RSI: 00000000c028660f RDI: 0000000000000004
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc6c69fb6d4
R13: 00000000004c380c R14: 00000000004d9df8 R15: 00000000ffffffff
INFO: rcu_sched detected stalls on CPUs/tasks:
1-...: (10501 ticks this GP) idle=1a2/140000000000002/0 softirq=10882/10882 fqs=0
(detected by 0, t=10566 jiffies, g=1025, c=1024, q=5)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 7376 Comm: syz-executor.2 Not tainted 4.14.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888050294380 task.stack: ffff8880502a0000
RIP: 0010:lock_acquire+0x13/0x430 kernel/locking/lockdep.c:3983
RSP: 0018:ffff8880aed07ca0 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffffffff89ba9440 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff89ba9460
RBP: ffff8880aed07ca8 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff89ba9448
R13: 0000000000000086 R14: ffffffff89ba9448 R15: dffffc0000000000
FS: 00007fc6c69fb700(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000008cf4a000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:160
__debug_check_no_obj_freed lib/debugobjects.c:738 [inline]
debug_check_no_obj_freed+0x12d/0x7b7 lib/debugobjects.c:776
kmem_cache_free+0x1ff/0x2b0 mm/slab.c:3757
put_cred_rcu+0x236/0x300 kernel/cred.c:126
__rcu_reclaim kernel/rcu/rcu.h:195 [inline]
rcu_do_batch kernel/rcu/tree.c:2699 [inline]
invoke_rcu_callbacks kernel/rcu/tree.c:2962 [inline]
__rcu_process_callbacks kernel/rcu/tree.c:2929 [inline]
rcu_process_callbacks+0x7b8/0x12b0 kernel/rcu/tree.c:2946
__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_irq+0xab/0x140 kernel/sched/core.c:3611
RSP: 0018:ffff8880502a75e8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
RAX: 1ffffffff0fe2d2b RBX: dffffc0000000000 RCX: 1ffff1100a05298e
RDX: 0000000000000000 RSI: ffff888050294c78 RDI: ffff888050294bfc
RBP: ffff8880502a7608 R08: 0000003c62478a9f R09: ffff888050294c70
R10: 0000000000000000 R11: 0000000000000000 R12: ffffed100a052870
R13: ffff888050294380 R14: ffffffff87f16958 R15: 0000000000000000
retint_kernel+0x1b/0x2d
RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline]
RIP: 0010:get_mem_cgroup_from_mm+0x80/0x470 mm/memcontrol.c:724
RSP: 0018:ffff8880502a76c0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
RAX: ffffed10148c996b RBX: ffff8880a464c640 RCX: 1ffffffff0f831ad
RDX: 0000000000000000 RSI: ffffffff830ea93c RDI: ffff8880aed2394c
RBP: ffff8880502a76f8 R08: 0000000000000000 R09: ffff888050294c98
R10: ffff888050294c78 R11: ffff888050294380 R12: ffffea0001c98fc0
R13: dffffc0000000000 R14: 1ffff110148c996b R15: ffff8880a464cb58
mem_cgroup_try_charge+0x32d/0x530 mm/memcontrol.c:5564
__add_to_page_cache_locked+0x183/0x8c0 mm/filemap.c:764
add_to_page_cache_lru+0xf4/0x310 mm/filemap.c:830
pagecache_get_page+0x1f5/0x9e0 mm/filemap.c:1512
grab_cache_page_write_begin+0x74/0xa0 mm/filemap.c:2997
mext_page_double_lock fs/ext4/move_extent.c:156 [inline]
move_extent_per_page fs/ext4/move_extent.c:313 [inline]
ext4_move_extents+0x11ce/0x3050 fs/ext4/move_extent.c:686
ext4_ioctl+0x1d8f/0x3920 fs/ext4/ioctl.c:826
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:500 [inline]
do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45af49
RSP: 002b:00007fc6c69fac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045af49
RDX: 0000000020000040 RSI: 00000000c028660f RDI: 0000000000000004
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc6c69fb6d4
R13: 00000000004c380c R14: 00000000004d9df8 R15: 00000000ffffffff
Code: e8 c3 3c 3f 00 4c 8b 45 90 e9 94 fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 45 89 c3 48 89 e5 41 57 <41> 89 cf 41 56 41 89 d6 41 55 41 89 f5 41 54 49 89 fc 53 65 48
rcu_sched kthread starved for 10567 jiffies! g1025 c1024 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=1
rcu_sched I29824 9 2 0x80000000
Call Trace:
context_switch kernel/sched/core.c:2808 [inline]
__schedule+0x7b8/0x1cd0 kernel/sched/core.c:3384
schedule+0x92/0x1c0 kernel/sched/core.c:3428
rcu_gp_kthread+0x16f8/0x1ec0 kernel/rcu/tree.c:2223
kthread+0x319/0x430 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404