rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-....: (10498 ticks this GP) idle=3ad/1/0x4000000000000000 softirq=162062/162062 fqs=4963
(t=10500 jiffies g=302145 q=86801)
NMI backtrace for cpu 1
CPU: 1 PID: 27151 Comm: syz-executor.3 Not tainted 5.15.0-rc3-next-20211001-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<IRQ>
__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:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
print_cpu_stall kernel/rcu/tree_stall.h:604 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:688 [inline]
rcu_pending kernel/rcu/tree.c:3889 [inline]
rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2608
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
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:charge_memcg+0x17c/0x360 mm/memcontrol.c:6724
Code: e2 01 00 00 48 8b 45 00 48 83 f8 ff 0f 84 55 01 00 00 48 8b 75 00 4c 89 e7 48 c1 ee 3a e8 cc 33 ff ff e8 87 d8 b9 ff fb 31 c0 <5b> 5d 41 5c 41 5d c3 e8 88 32 9f ff 31 d2 45 31 c9 45 31 c0 31 f6
RSP: 0018:ffffc900041af548 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 1ffffffff1fb6156
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffea00085b1540 R08: 0000000000000001 R09: ffffffff8fd17ad7
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88814076c000
R13: 0000000001100cca R14: 0000000000000080 R15: 0000000000000000
__mem_cgroup_charge+0x27/0x90 mm/memcontrol.c:6732
mem_cgroup_charge include/linux/memcontrol.h:720 [inline]
__filemap_add_folio+0x724/0xe20 mm/filemap.c:899
filemap_add_folio+0xab/0x1d0 mm/filemap.c:992
do_read_cache_page+0x512/0x11a0 mm/filemap.c:3443
read_mapping_page include/linux/pagemap.h:602 [inline]
dir_get_page fs/minix/dir.c:70 [inline]
minix_find_entry+0x203/0x7e0 fs/minix/dir.c:170
minix_inode_by_name+0x6d/0x460 fs/minix/dir.c:454
minix_lookup fs/minix/namei.c:30 [inline]
minix_lookup+0x103/0x190 fs/minix/namei.c:22
lookup_open.isra.0+0x69f/0x13d0 fs/namei.c:3260
open_last_lookups fs/namei.c:3352 [inline]
path_openat+0x9a5/0x2740 fs/namei.c:3558
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_creat fs/open.c:1290 [inline]
__se_sys_creat fs/open.c:1284 [inline]
__x64_sys_creat+0xc9/0x120 fs/open.c:1284
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: 0033:0x7ff70a6d58d9
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:00007ff707c4c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007ff70a7d9f60 RCX: 00007ff70a6d58d9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000140
RBP: 00007ff70a72fcb4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcde728dff R14: 00007ff707c4c300 R15: 0000000000022000
</TASK>
----------------
Code disassembly (best guess):
0: e2 01 loop 0x3
2: 00 00 add %al,(%rax)
4: 48 8b 45 00 mov 0x0(%rbp),%rax
8: 48 83 f8 ff cmp $0xffffffffffffffff,%rax
c: 0f 84 55 01 00 00 je 0x167
12: 48 8b 75 00 mov 0x0(%rbp),%rsi
16: 4c 89 e7 mov %r12,%rdi
19: 48 c1 ee 3a shr $0x3a,%rsi
1d: e8 cc 33 ff ff callq 0xffff33ee
22: e8 87 d8 b9 ff callq 0xffb9d8ae
27: fb sti
28: 31 c0 xor %eax,%eax
* 2a: 5b pop %rbx <-- trapping instruction
2b: 5d pop %rbp
2c: 41 5c pop %r12
2e: 41 5d pop %r13
30: c3 retq
31: e8 88 32 9f ff callq 0xff9f32be
36: 31 d2 xor %edx,%edx
38: 45 31 c9 xor %r9d,%r9d
3b: 45 31 c0 xor %r8d,%r8d
3e: 31 f6 xor %esi,%esi