rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...0: (1 ticks this GP) idle=2c9/1/0x4000000000000000 softirq=420385/420387 fqs=5136
(detected by 0, t=10502 jiffies, g=663449, q=19597)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 1 Comm: systemd Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:rcu_lockdep_current_cpu_online+0x0/0x150 kernel/rcu/tree.c:1166
Code: 4c 8b 44 24 38 4c 8b 4c 24 30 4c 8b 54 24 28 48 8b 54 24 20 48 8b 44 24 18 e9 41 fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 <65> 8b 15 09 40 9f 7e 81 e2 00 00 f0 00 b8 01 00 00 00 75 0a 8b 15
RSP: 0018:ffffc90000dc0d28 EFLAGS: 00000002
RAX: 0000000000000001 RBX: 1ffff920001b81aa RCX: ffffffff815cc618
RDX: 0000000000000000 RSI: 0000000000010004 RDI: ffffffff8b5628a8
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8d912e17
R10: fffffbfff1b225c2 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: ffff8880b9d2a418 R15: 0000000000000000
FS: 00007fe783a72500(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f028d7b9020 CR3: 000000007ec3e000 CR4: 0000000000350ee0
Call Trace:
rcu_read_lock_held_common kernel/rcu/update.c:112 [inline]
rcu_read_lock_held_common kernel/rcu/update.c:102 [inline]
rcu_read_lock_sched_held+0x25/0x70 kernel/rcu/update.c:123
trace_lock_acquire include/trace/events/lock.h:13 [inline]
lock_acquire+0x442/0x510 kernel/locking/lockdep.c:5608
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
_raw_spin_lock_irq+0x32/0x50 kernel/locking/spinlock.c:170
__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:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:read_mems_allowed_begin include/linux/cpuset.h:151 [inline]
RIP: 0010:get_any_partial mm/slub.c:2213 [inline]
RIP: 0010:get_partial mm/slub.c:2256 [inline]
RIP: 0010:___slab_alloc+0x2c9/0xfe0 mm/slub.c:3017
Code: ff ff ff 00 0f 85 7d 01 00 00 9c 58 f6 c4 02 0f 85 2d 08 00 00 48 83 bd 68 ff ff ff 00 44 8b ad 70 ff ff ff 0f 85 57 01 00 00 <65> 48 8b 04 25 40 70 02 00 44 89 ad 70 ff ff ff 48 89 85 38 ff ff
RSP: 0018:ffffc90000c67b00 EFLAGS: 00000206
RAX: 0000000000000002 RBX: ffff8880b9d409a0 RCX: 1ffffffff1b22051
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000c67be0 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817def48 R11: 0000000000000000 R12: ffff888010dd03c0
R13: 00000000ffffffff R14: 0000000000000001 R15: ffffea0000aa4a00
__slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3109
slab_alloc_node mm/slub.c:3200 [inline]
slab_alloc mm/slub.c:3242 [inline]
kmem_cache_alloc+0x35c/0x3a0 mm/slub.c:3247
getname_flags.part.0+0x50/0x4f0 fs/namei.c:138
getname_flags+0x9a/0xe0 include/linux/audit.h:323
user_path_at_empty+0x2b/0x60 fs/namei.c:2800
user_path_at include/linux/namei.h:57 [inline]
vfs_statx+0x142/0x390 fs/stat.c:221
vfs_fstatat fs/stat.c:243 [inline]
vfs_stat include/linux/fs.h:3353 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:385
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: 0033:0x7fe78203b295
Code: 00 00 00 e8 5d 01 00 00 48 83 c4 18 c3 0f 1f 84 00 00 00 00 00 83 ff 01 48 89 f0 77 30 48 89 c7 48 89 d6 b8 04 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 03 f3 c3 90 48 8b 15 d1 db 2b 00 f7 d8 64 89
RSP: 002b:00007ffe39826508 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00007fe7820c3011 RCX: 00007fe78203b295
RDX: 00007ffe39826590 RSI: 00007ffe39826590 RDI: 00007fe7820c3011
RBP: 0000000000000001 R08: 000055730209f240 R09: 0000000000000020
R10: 0000000039826500 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ffe39826770 R15: 00005573020a2b28
----------------
Code disassembly (best guess):
0: 4c 8b 44 24 38 mov 0x38(%rsp),%r8
5: 4c 8b 4c 24 30 mov 0x30(%rsp),%r9
a: 4c 8b 54 24 28 mov 0x28(%rsp),%r10
f: 48 8b 54 24 20 mov 0x20(%rsp),%rdx
14: 48 8b 44 24 18 mov 0x18(%rsp),%rax
19: e9 41 fe ff ff jmpq 0xfffffe5f
1e: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1)
25: 00 00 00 00
29: 90 nop
* 2a: 65 8b 15 09 40 9f 7e mov %gs:0x7e9f4009(%rip),%edx # 0x7e9f403a <-- trapping instruction
31: 81 e2 00 00 f0 00 and $0xf00000,%edx
37: b8 01 00 00 00 mov $0x1,%eax
3c: 75 0a jne 0x48
3e: 8b .byte 0x8b
3f: 15 .byte 0x15