rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P8408/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=29761, q=376 ncpus=2)
task:syz-executor.3 state:R running task stack:24672 pid:8408 tgid:8408 ppid:5299 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 kernel/sched/core.c:6745
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__sanitizer_cov_trace_switch+0x90/0x120 kernel/kcov.c:340
Code: 85 d2 75 14 e9 9a 00 00 00 41 b8 05 00 00 00 4d 85 d2 0f 84 8b 00 00 00 4c 8b 4c 24 20 65 4c 8b 1c 25 80 d4 03 00 31 d2 eb 08 <48> ff c2 49 39 d2 74 71 4c 8b 74 d6 10 65 8b 05 c4 a9 6d 7e a9 00
RSP: 0018:ffffc90003c47678 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffffc90003c47798 RCX: ffffffff8b7302c1
RDX: 0000000000000002 RSI: ffffffff8f93acd0 RDI: 0000000000000001
RBP: ffffc90003c47890 R08: 0000000000000005 R09: ffffffff8b730305
R10: 0000000000000003 R11: ffff88802b150000 R12: 1ffff92000788ef7
R13: ffff88801cb3c800 R14: 0000000000000003 R15: ffff88802af4a0f8
mas_data_end lib/maple_tree.c:1446 [inline]
mt_validate_nulls lib/maple_tree.c:7552 [inline]
mt_validate+0x4375/0x4aa0 lib/maple_tree.c:7599
validate_mm+0xe7/0x530 mm/mmap.c:288
__split_vma+0xa69/0xc30 mm/mmap.c:2440
split_vma mm/mmap.c:2466 [inline]
vma_modify+0x194/0x350 mm/mmap.c:2500
vma_modify_flags include/linux/mm.h:3347 [inline]
mprotect_fixup+0x3ea/0xa90 mm/mprotect.c:637
do_mprotect_pkey+0x908/0xe00 mm/mprotect.c:820
__do_sys_mprotect mm/mprotect.c:841 [inline]
__se_sys_mprotect mm/mprotect.c:838 [inline]
__x64_sys_mprotect+0x80/0x90 mm/mprotect.c:838
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7feed967d167
RSP: 002b:00007ffca4623a18 EFLAGS: 00000206 ORIG_RAX: 000000000000000a
RAX: ffffffffffffffda RBX: 00007feeda38c6c0 RCX: 00007feed967d167
RDX: 0000000000000003 RSI: 0000000000020000 RDI: 00007feeda36d000
RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000021000 R11: 0000000000000206 R12: 00007ffca4623c70
R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000
rcu: rcu_preempt kthread starved for 10537 jiffies! g29761 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:24912 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2000
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2202
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
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: 8407 Comm: syz-executor.0 Not tainted 6.10.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:__lock_acquire+0x6e/0x1fd0 kernel/locking/lockdep.c:5005
Code: 30 84 c0 0f 85 4b 16 00 00 83 3d 48 e8 39 0e 00 0f 84 1c 11 00 00 83 3d bf 9d ad 0c 00 74 2c 4c 89 e0 48 c1 e8 03 80 3c 30 00 <74> 12 4c 89 e7 e8 e8 1c 86 00 48 be 00 00 00 00 00 fc ff df 48 c7
RSP: 0018:ffffc90003e27450 EFLAGS: 00000046
RAX: 1ffffffff1c667f4 RBX: 0000000000000000 RCX: 0000000000000002
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: ffffffff8e333fa0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: dffffc0000000000 R11: fffffbfff1f58426 R12: ffffffff8e333fa0
R13: 0000000000000001 R14: ffff88802265bc00 R15: 0000000000000002
FS: 00007f61815d56c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32d26000 CR3: 000000005db1e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
rcu_read_lock include/linux/rcupdate.h:781 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2402 [inline]
bpf_trace_run4+0x261/0x590 kernel/trace/bpf_trace.c:2446
__traceiter_sched_switch+0x98/0xd0 include/trace/events/sched.h:222
trace_sched_switch include/trace/events/sched.h:222 [inline]
__schedule+0x2535/0x49d0 kernel/sched/core.c:6742
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
futex_wait_queue+0x14e/0x1d0 kernel/futex/waitwake.c:370
__futex_wait+0x17f/0x320 kernel/futex/waitwake.c:669
futex_wait+0x101/0x360 kernel/futex/waitwake.c:697
do_futex+0x33b/0x560 kernel/futex/syscalls.c:102
__do_sys_futex kernel/futex/syscalls.c:179 [inline]
__se_sys_futex+0x3f9/0x480 kernel/futex/syscalls.c:160
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f618087d0a9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f61815d5178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f61809b3f88 RCX: 00007f618087d0a9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f61809b3f88
RBP: 00007f61809b3f80 R08: 00007f61815d56c0 R09: 00007f61815d56c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f61809b3f8c
R13: 000000000000000b R14: 00007ffeddd354c0 R15: 00007ffeddd355a8