rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-...!: (1 GPs behind) idle=e1f/1/0x4000000000000000 softirq=140195/140196 fqs=46
(t=10500 jiffies g=239689 q=603)
rcu: rcu_preempt kthread starved for 10387 jiffies! g239689 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R running task stack:28896 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4969 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6250
schedule+0xd2/0x260 kernel/sched/core.c:6323
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:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 26246 Comm: syz-executor.4 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__sanitizer_cov_trace_pc+0x4c/0x60 kernel/kcov.c:202
Code: 0e 85 c9 74 35 8b 82 a4 15 00 00 85 c0 74 2b 8b 82 80 15 00 00 83 f8 02 75 20 48 8b 8a 88 15 00 00 8b 92 84 15 00 00 48 8b 01 <48> 83 c0 01 48 39 c2 76 07 48 89 34 c1 48 89 01 c3 0f 1f 00 41 55
RSP: 0018:ffffc900150af990 EFLAGS: 00000246
RAX: 000000000003ffff RBX: 0000000000000001 RCX: ffffc900117d1000
RDX: 0000000000040000 RSI: ffffffff828d90eb RDI: 0000000000000003
RBP: ffffc900151c9000 R08: 00000000ffffffff R09: 0000000000000000
R10: ffffffff828d90db R11: 0000000000000000 R12: ffff88805883ce68
R13: ffff88805883ceb8 R14: ffff888022290800 R15: dffffc0000000000
FS: 00007fe341d63700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3d2b202fe8 CR3: 0000000073b0f000 CR4: 0000000000350ef0
Call Trace:
ntfs_lookup_inode_by_name+0x64b/0x34b0 fs/ntfs/dir.c:246
load_and_init_usnjrnl+0xda/0x1180 fs/ntfs/super.c:1450
load_system_files fs/ntfs/super.c:2146 [inline]
ntfs_fill_super+0x7c20/0x8440 fs/ntfs/super.c:2891
mount_bdev+0x34d/0x410 fs/super.c:1368
legacy_get_tree+0x105/0x220 fs/fs_context.c:610
vfs_get_tree+0x89/0x2f0 fs/super.c:1498
do_new_mount fs/namespace.c:2988 [inline]
path_mount+0x1320/0x1fa0 fs/namespace.c:3318
do_mount fs/namespace.c:3331 [inline]
__do_sys_mount fs/namespace.c:3539 [inline]
__se_sys_mount fs/namespace.c:3516 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3516
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: 0033:0x7fe3447ef01a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 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:00007fe341d62fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fe3447ef01a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fe341d63000
RBP: 00007fe341d63040 R08: 00007fe341d63040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007fe341d63000 R15: 0000000020086400
NMI backtrace for cpu 1
CPU: 1 PID: 26215 Comm: syz-executor.2 Not tainted 5.15.0-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: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:627 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
rcu_pending kernel/rcu/tree.c:3878 [inline]
rcu_sched_clock_irq.cold+0x9d/0x746 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:1421
__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:check_kcov_mode+0x2c/0x40 kernel/kcov.c:174
Code: 05 29 b4 8a 7e 89 c2 81 e2 00 01 00 00 a9 00 01 ff 00 74 10 31 c0 85 d2 74 15 8b 96 a4 15 00 00 85 d2 74 0b 8b 86 80 15 00 00 <39> f8 0f 94 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 31 c0
RSP: 0018:ffffc90014eef980 EFLAGS: 00000246
RAX: 0000000000000002 RBX: 0000000000000000 RCX: ffff88807113ba00
RDX: 0000000000000000 RSI: ffff88807113ba00 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff828d8f0f R11: 0000000000000000 R12: ffff888094c73e68
R13: ffff888094c73eb8 R14: ffff88801dea4000 R15: dffffc0000000000
write_comp_data kernel/kcov.c:218 [inline]
__sanitizer_cov_trace_const_cmp2+0x22/0x80 kernel/kcov.c:277
ntfs_lookup_inode_by_name+0x46f/0x34b0 fs/ntfs/dir.c:134
load_and_init_usnjrnl+0xda/0x1180 fs/ntfs/super.c:1450
load_system_files fs/ntfs/super.c:2146 [inline]
ntfs_fill_super+0x7c20/0x8440 fs/ntfs/super.c:2891
mount_bdev+0x34d/0x410 fs/super.c:1368
legacy_get_tree+0x105/0x220 fs/fs_context.c:610
vfs_get_tree+0x89/0x2f0 fs/super.c:1498
do_new_mount fs/namespace.c:2988 [inline]
path_mount+0x1320/0x1fa0 fs/namespace.c:3318
do_mount fs/namespace.c:3331 [inline]
__do_sys_mount fs/namespace.c:3539 [inline]
__se_sys_mount fs/namespace.c:3516 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3516
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: 0033:0x7fd30982b01a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 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:00007fd306d9efa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fd30982b01a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fd306d9f000
RBP: 00007fd306d9f040 R08: 00007fd306d9f040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007fd306d9f000 R15: 0000000020086400
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 85 c9 test %ecx,%ecx
2: 74 35 je 0x39
4: 8b 82 a4 15 00 00 mov 0x15a4(%rdx),%eax
a: 85 c0 test %eax,%eax
c: 74 2b je 0x39
e: 8b 82 80 15 00 00 mov 0x1580(%rdx),%eax
14: 83 f8 02 cmp $0x2,%eax
17: 75 20 jne 0x39
19: 48 8b 8a 88 15 00 00 mov 0x1588(%rdx),%rcx
20: 8b 92 84 15 00 00 mov 0x1584(%rdx),%edx
26: 48 8b 01 mov (%rcx),%rax
* 29: 48 83 c0 01 add $0x1,%rax <-- trapping instruction
2d: 48 39 c2 cmp %rax,%rdx
30: 76 07 jbe 0x39
32: 48 89 34 c1 mov %rsi,(%rcx,%rax,8)
36: 48 89 01 mov %rax,(%rcx)
39: c3 retq
3a: 0f 1f 00 nopl (%rax)
3d: 41 55 push %r13