rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-...!: (10493 ticks this GP) idle=497/1/0x4000000000000000 softirq=20776/20776 fqs=7
(t=10501 jiffies g=27729 q=270)
rcu: rcu_preempt kthread timer wakeup didn't happen for 10486 jiffies! g27729 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=13110
rcu: rcu_preempt kthread starved for 10489 jiffies! g27729 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
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:26576 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x1fd/0x770 kernel/rcu/tree.c:1955
rcu_gp_kthread+0xa5/0x350 kernel/rcu/tree.c:2128
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7612 Comm: syz-executor.1 Not tainted 5.16.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x0/0xa0 kernel/kcov.c:288
Code: 54 f9 08 48 c1 e0 03 48 83 c8 18 48 89 34 01 4c 89 44 f9 18 49 ff c2 4c 89 11 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 <4c> 8b 04 24 65 48 8b 14 25 c0 6f 02 00 65 8b 05 94 df 7d 7e a9 00
RSP: 0018:ffffc90005aaee38 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000001
RDX: ffff88802e998000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90005aaef10 R08: ffffffff8417363f R09: 0000000000000001
R10: ffffed102812ffb4 R11: 0000000000000000 R12: ffff88807ece4000
R13: ffff88807ece6000 R14: ffff88807ece6c08 R15: ffff888140895108
FS: 00007f2a94160700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e22d000 CR3: 000000001e867000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ext4_check_bdev_write_error fs/ext4/ext4_jbd2.c:210 [inline]
__ext4_journal_get_write_access+0x1a7/0x6b0 fs/ext4/ext4_jbd2.c:230
ext4_reserve_inode_write+0x280/0x380 fs/ext4/inode.c:5716
__ext4_mark_inode_dirty+0x13b/0x720 fs/ext4/inode.c:5882
ext4_dirty_inode+0xbe/0x100 fs/ext4/inode.c:5919
__mark_inode_dirty+0xb6/0x8f0 fs/fs-writeback.c:2399
mark_inode_dirty include/linux/fs.h:2451 [inline]
generic_write_end+0x218/0x360 fs/buffer.c:2202
ext4_da_write_end+0x7bb/0x870 fs/ext4/inode.c:3059
generic_perform_write+0x3da/0x600 mm/filemap.c:3765
ext4_buffered_write_iter+0x391/0x520 fs/ext4/file.c:269
ext4_file_write_iter+0x8f7/0x1bd0
do_iter_readv_writev+0x54f/0x740
do_iter_write+0x21e/0x7b0 fs/read_write.c:851
iter_file_splice_write+0x7eb/0xfa0 fs/splice.c:689
do_splice_from fs/splice.c:767 [inline]
direct_splice_actor+0xe6/0x1c0 fs/splice.c:936
splice_direct_to_actor+0x529/0xd00 fs/splice.c:891
do_splice_direct+0x291/0x3e0 fs/splice.c:979
do_sendfile+0x6fe/0x1040 fs/read_write.c:1245
__do_sys_sendfile64 fs/read_write.c:1310 [inline]
__se_sys_sendfile64+0x171/0x1d0 fs/read_write.c:1296
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f2a957eae99
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:00007f2a94160168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f2a958fdf60 RCX: 00007f2a957eae99
RDX: 0000000000000000 RSI: 0000000000000014 RDI: 0000000000000006
RBP: 00007f2a95844ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 00008400fffffffb R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe80614dbf R14: 00007f2a94160300 R15: 0000000000022000
NMI backtrace for cpu 1
CPU: 1 PID: 7608 Comm: syz-executor.3 Not tainted 5.16.0-rc6-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+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x22d/0x390 kernel/rcu/tree_stall.h:343
print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
rcu_pending kernel/rcu/tree.c:3878 [inline]
rcu_sched_clock_irq+0x1e33/0x2bc0 kernel/rcu/tree.c:2597
update_process_times+0x197/0x200 kernel/time/timer.c:1785
tick_sched_handle kernel/time/tick-sched.c:226 [inline]
tick_sched_timer+0x27d/0x420 kernel/time/tick-sched.c:1428
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x4cb/0xa60 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x3b3/0x1040 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0xf9/0x270 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:rmqueue_pcplist+0x288/0x4e0 mm/page_alloc.c:3656
Code: 60 42 80 3c 2b 00 74 08 4c 89 e7 e8 c2 fd 09 00 f6 44 24 61 02 0f 85 8f 01 00 00 41 f7 c6 00 02 00 00 74 01 fb 48 8b 5c 24 10 <48> 85 db 0f 84 29 01 00 00 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74
RSP: 0018:ffffc9000544ebc0 EFLAGS: 00000206
RAX: 172d7ac727621a00 RBX: ffffea00020f7300 RCX: ffffffff81667321
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000544ecb0 R08: dffffc0000000000 R09: fffffbfff1ff3ff0
R10: fffffbfff1ff3ff0 R11: 0000000000000000 R12: ffffc9000544ec20
R13: dffffc0000000000 R14: 0000000000000246 R15: ffff88813fffa700
rmqueue+0x1f04/0x2330 mm/page_alloc.c:3682
get_page_from_freelist+0x493/0x9e0 mm/page_alloc.c:4146
__alloc_pages+0x255/0x580 mm/page_alloc.c:5369
folio_alloc+0x1a/0x50 mm/mempolicy.c:2201
filemap_alloc_folio+0x7e/0x1c0 mm/filemap.c:1036
__filemap_get_folio+0x7fe/0x1060 mm/filemap.c:1951
pagecache_get_page+0x28/0x170 mm/folio-compat.c:125
ext4_da_write_begin+0x561/0x9b0 fs/ext4/inode.c:2958
generic_perform_write+0x2dd/0x600 mm/filemap.c:3754
ext4_buffered_write_iter+0x391/0x520 fs/ext4/file.c:269
ext4_file_write_iter+0x8f7/0x1bd0
do_iter_readv_writev+0x54f/0x740
do_iter_write+0x21e/0x7b0 fs/read_write.c:851
iter_file_splice_write+0x7eb/0xfa0 fs/splice.c:689
do_splice_from fs/splice.c:767 [inline]
direct_splice_actor+0xe6/0x1c0 fs/splice.c:936
splice_direct_to_actor+0x529/0xd00 fs/splice.c:891
do_splice_direct+0x291/0x3e0 fs/splice.c:979
do_sendfile+0x6fe/0x1040 fs/read_write.c:1245
__do_sys_sendfile64 fs/read_write.c:1310 [inline]
__se_sys_sendfile64+0x171/0x1d0 fs/read_write.c:1296
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f07a5e2be99
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:00007f07a47a1168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f07a5f3ef60 RCX: 00007f07a5e2be99
RDX: 0000000000000000 RSI: 0000000000000014 RDI: 0000000000000006
RBP: 00007f07a5e85ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 00008400fffffffb R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd1f0d2a4f R14: 00007f07a47a1300 R15: 0000000000022000
sched: RT throttling activated
----------------
Code disassembly (best guess):
0: 54 push %rsp
1: f9 stc
2: 08 48 c1 or %cl,-0x3f(%rax)
5: e0 03 loopne 0xa
7: 48 83 c8 18 or $0x18,%rax
b: 48 89 34 01 mov %rsi,(%rcx,%rax,1)
f: 4c 89 44 f9 18 mov %r8,0x18(%rcx,%rdi,8)
14: 49 ff c2 inc %r10
17: 4c 89 11 mov %r10,(%rcx)
1a: c3 retq
1b: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
22: 00 00 00
25: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
* 2a: 4c 8b 04 24 mov (%rsp),%r8 <-- trapping instruction
2e: 65 48 8b 14 25 c0 6f mov %gs:0x26fc0,%rdx
35: 02 00
37: 65 8b 05 94 df 7d 7e mov %gs:0x7e7ddf94(%rip),%eax # 0x7e7ddfd2
3e: a9 .byte 0xa9