REISERFS warning (device loop5): sh-2021 reiserfs_fill_super: can not find reiserfs on loop5
binder: 16329:16332 BC_FREE_BUFFER u0000000020004000 no match
binder: send failed reply for transaction 27 to 16329:16332
binder: undelivered TRANSACTION_COMPLETE
binder: undelivered TRANSACTION_ERROR: 29189
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (2 ticks this GP) idle=b82/1/0x4000000000000002 softirq=29838/29840 fqs=0 
rcu: 	 (t=11044 jiffies g=36741 q=202)
rcu: rcu_preempt kthread starved for 11044 jiffies! g36741 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: RCU grace-period kthread stack dump:
rcu_preempt     I22568    10      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2831 [inline]
 __schedule+0x8cf/0x21d0 kernel/sched/core.c:3472
 schedule+0xfe/0x460 kernel/sched/core.c:3516
 schedule_timeout+0x140/0x260 kernel/time/timer.c:1804
 rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1934
 rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2090
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
NMI backtrace for cpu 1
CPU: 1 PID: 6056 Comm: syz-fuzzer Not tainted 4.20.0-rc6+ #153
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x244/0x39d lib/dump_stack.c:113
 nmi_cpu_backtrace.cold.2+0x5c/0xa1 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x1e8/0x22a 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:164 [inline]
 rcu_dump_cpu_stacks+0x16f/0x1bc kernel/rcu/tree.c:1195
 print_cpu_stall.cold.67+0x1f3/0x3c7 kernel/rcu/tree.c:1334
 check_cpu_stall kernel/rcu/tree.c:1408 [inline]
 rcu_pending kernel/rcu/tree.c:2961 [inline]
 rcu_check_callbacks+0xf3b/0x13f0 kernel/rcu/tree.c:2506
 update_process_times+0x2d/0x70 kernel/time/timer.c:1636
 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1460
 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1518
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1034 [inline]
 smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1059
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
 </IRQ>
RIP: 0010:do_user_addr_fault arch/x86/mm/fault.c:1295 [inline]
RIP: 0010:__do_page_fault+0x6e3/0xe60 arch/x86/mm/fault.c:1489
Code: 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 de 06 00 00 48 83 3d 2f 83 19 08 00 0f 84 20 06 00 00 e8 94 06 47 00 fb 66 0f 1f 44 00 00 <4d> 89 ef 31 ff 41 83 e7 04 4c 89 fe e8 ac 07 47 00 4d 85 ff c7 45
RSP: 0000:ffff8881bff4fd78 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13
RAX: ffff8881bfe00400 RBX: 00007f7253e23ac1 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81387ddc RDI: ffffffff89520100
RBP: ffff8881bff4fde8 R08: ffff8881bfe00400 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881bff4ff58
R13: 0000000000000007 R14: 00007f7253e23000 R15: 0000000000000003
 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1520
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143
RIP: 0033:0x41e321
Code: 0f 95 c7 44 89 c9 e9 ec fe ff ff 8b 0d c4 6f 18 01 85 c9 7e 09 48 8b 4b 30 49 39 c8 73 42 84 07 41 0f b6 0c 31 44 84 d1 75 2c <f0> 44 08 17 0f b6 4b 62 f6 c1 01 0f 84 04 ff ff ff 48 8b 44 24 60
RSP: 002b:000000c4200226e0 EFLAGS: 00010246
RAX: 000000c43bc23080 RBX: 00007f7253e7e728 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00007f7253e23aa0 RDI: 00007f7253e23ac1
RBP: 000000c420022700 R08: 0000000000000108 R09: 0000000000000021
R10: 0000000000000001 R11: 000000c43a7fef90 R12: 0000000000000000
R13: 00000000000000f3 R14: 0000000000000033 R15: 0000000000000003