rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=077/1/0x4000000000000000 softirq=49351/49353 fqs=0
(detected by 1, t=10502 jiffies, g=66153, q=86)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2265 Comm: syz-executor.5 Not tainted 5.16.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:135 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x122/0x180 mm/kasan/generic.c:189
Code: 4c 89 d8 4c 39 da 74 0e 80 3a 00 74 ef 49 8d 04 2c 48 85 d2 75 0b 48 89 da 48 29 c2 e9 55 ff ff ff 49 39 d2 75 17 49 0f be 02 <41> 83 e1 07 49 39 c1 7d 0a 5b b8 01 00 00 00 5d 41 5c c3 44 89 c2
RSP: 0018:ffffc90000007d88 EFLAGS: 00000046
RAX: 0000000000000004 RBX: fffff52000000fbb RCX: ffffffff815c4e40
RDX: fffff52000000fba RSI: 0000000000000004 RDI: ffffc90000007dd0
RBP: fffff52000000fba R08: 0000000000000001 R09: ffffc90000007dd3
R10: fffff52000000fba R11: 0000000000000001 R12: ffff8880b9c2a408
R13: ffff8880b9c2a410 R14: ffff8880b9c2a400 R15: 0000000000000001
FS: 00005555566ff400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556708848 CR3: 000000008ac85000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:512 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:82 [inline]
do_raw_spin_lock+0x120/0x2b0 kernel/locking/spinlock_debug.c:115
__run_hrtimer kernel/time/hrtimer.c:1689 [inline]
__hrtimer_run_queues+0x243/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:56 [inline]
RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:342 [inline]
RIP: 0010:deref_stack_reg+0x5c/0x150 arch/x86/kernel/unwind_orc.c:352
Code: 00 00 41 8b 04 24 85 c0 74 62 49 8d 7c 24 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 c3 00 00 00 <49> 8d 7c 24 10 4d 8b 6c 24 08 48 b8 00 00 00 00 00 fc ff df 48 89
RSP: 0018:ffffc900039c7270 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffffc900039c7410 RCX: ffffffff8e0b2019
RDX: 1ffff92000738e7a RSI: ffffc900039c7458 RDI: ffffc900039c73d0
RBP: ffffc900039c7458 R08: ffffffff8e0b2014 R09: 0000000000000001
R10: fffff52000738e84 R11: 000000000008808a R12: ffffc900039c73c8
R13: ffffc900039c73fd R14: ffffc900039c73c8 R15: ffffffff8e0b2018
unwind_next_frame+0xcdc/0x1ce0 arch/x86/kernel/unwind_orc.c:534
__unwind_start+0x51b/0x800 arch/x86/kernel/unwind_orc.c:712
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0x5c/0xe0 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:434 [inline]
__kasan_slab_alloc+0x85/0xb0 mm/kasan/common.c:467
kasan_slab_alloc include/linux/kasan.h:259 [inline]
slab_post_alloc_hook mm/slab.h:519 [inline]
slab_alloc mm/slab.c:3323 [inline]
kmem_cache_alloc+0x265/0x560 mm/slab.c:3507
ext4_free_blocks+0x9a5/0x1de0 fs/ext4/mballoc.c:6033
ext4_remove_blocks fs/ext4/extents.c:2541 [inline]
ext4_ext_rm_leaf fs/ext4/extents.c:2707 [inline]
ext4_ext_remove_space+0x1f84/0x4520 fs/ext4/extents.c:2955
ext4_ext_truncate+0x205/0x260 fs/ext4/extents.c:4417
ext4_truncate+0xecc/0x1440 fs/ext4/inode.c:4201
ext4_evict_inode+0xa71/0x1950 fs/ext4/inode.c:287
evict+0x2ed/0x6b0 fs/inode.c:590
iput_final fs/inode.c:1670 [inline]
iput.part.0+0x562/0x820 fs/inode.c:1696
iput+0x58/0x70 fs/inode.c:1686
dentry_unlink_inode+0x2b1/0x460 fs/dcache.c:376
d_delete fs/dcache.c:2505 [inline]
d_delete+0x16b/0x1c0 fs/dcache.c:2494
vfs_rmdir.part.0+0x3ae/0x4b0 fs/namei.c:3982
vfs_rmdir fs/namei.c:3954 [inline]
do_rmdir+0x3a6/0x430 fs/namei.c:4030
__do_sys_rmdir fs/namei.c:4049 [inline]
__se_sys_rmdir fs/namei.c:4047 [inline]
__x64_sys_rmdir+0xc6/0x110 fs/namei.c:4047
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f1ba6d2b807
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 54 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffadf94a68 EFLAGS: 00000207 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007f1ba6d2b807
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007fffadf95bf0
RBP: 00007fffadf94b30 R08: 0000000000000000 R09: 00007fffadf94900
R10: 00005555567008e3 R11: 0000000000000207 R12: 00007f1ba6d85172
R13: 00007fffadf95bf0 R14: 0000555556700810 R15: 00007fffadf95c30
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g66153 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=1 timer-softirq=34808
rcu: rcu_preempt kthread starved for 10502 jiffies! g66153 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
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:I stack:28632 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4900 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1955
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2128
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 1
CPU: 1 PID: 3706 Comm: syz-executor.0 Not tainted 5.16.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_check_gp_kthread_starvation.cold+0x1fb/0x200 kernel/rcu/tree_stall.h:481
print_other_cpu_stall kernel/rcu/tree_stall.h:586 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:729 [inline]
rcu_pending kernel/rcu/tree.c:3878 [inline]
rcu_sched_clock_irq+0x1f7c/0x2150 kernel/rcu/tree.c:2597
update_process_times+0x16d/0x200 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1428
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:csd_lock_wait kernel/smp.c:440 [inline]
RIP: 0010:smp_call_function_many_cond+0x452/0xc20 kernel/smp.c:969
Code: 0b 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 70 7e 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 33 06 00 00 8b 43 08 31
RSP: 0018:ffffc90003b27c20 EFLAGS: 00000246
RAX: 0000000000040000 RBX: ffffe8ffffc0b640 RCX: ffffc90002d19000
RDX: 0000000000040000 RSI: ffffffff816b4fa0 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff816b4fc6 R11: 0000000000000000 R12: fffff91ffff816c9
R13: 0000000000000000 R14: ffffe8ffffc0b648 R15: 0000000000000001
clock_was_set+0x599/0x790 kernel/time/hrtimer.c:974
do_settimeofday64 kernel/time/timekeeping.c:1326 [inline]
do_settimeofday64+0x3b9/0x5b0 kernel/time/timekeeping.c:1293
do_sys_settimeofday64 kernel/time/time.c:195 [inline]
do_sys_settimeofday64+0x1de/0x260 kernel/time/time.c:169
__do_sys_clock_settime kernel/time/posix-timers.c:1079 [inline]
__se_sys_clock_settime kernel/time/posix-timers.c:1067 [inline]
__x64_sys_clock_settime+0x1a1/0x280 kernel/time/posix-timers.c:1067
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f3aa5c22e99
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3aa4598168 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3
RAX: ffffffffffffffda RBX: 00007f3aa5d35f60 RCX: 00007f3aa5c22e99
RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000000
RBP: 00007f3aa5c7cff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe912b697f R14: 00007f3aa4598300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 4c 89 d8 mov %r11,%rax
3: 4c 39 da cmp %r11,%rdx
6: 74 0e je 0x16
8: 80 3a 00 cmpb $0x0,(%rdx)
b: 74 ef je 0xfffffffc
d: 49 8d 04 2c lea (%r12,%rbp,1),%rax
11: 48 85 d2 test %rdx,%rdx
14: 75 0b jne 0x21
16: 48 89 da mov %rbx,%rdx
19: 48 29 c2 sub %rax,%rdx
1c: e9 55 ff ff ff jmpq 0xffffff76
21: 49 39 d2 cmp %rdx,%r10
24: 75 17 jne 0x3d
26: 49 0f be 02 movsbq (%r10),%rax
* 2a: 41 83 e1 07 and $0x7,%r9d <-- trapping instruction
2e: 49 39 c1 cmp %rax,%r9
31: 7d 0a jge 0x3d
33: 5b pop %rbx
34: b8 01 00 00 00 mov $0x1,%eax
39: 5d pop %rbp
3a: 41 5c pop %r12
3c: c3 retq
3d: 44 89 c2 mov %r8d,%edx