rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P7204/1:b..l
rcu: (detected by 0, t=10503 jiffies, g=27813, q=727 ncpus=2)
task:syz-executor.3 state:R running task stack:24664 pid:7204 tgid:7204 ppid:6307 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a50 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:lock_is_held_type+0x20/0x190 kernel/locking/lockdep.c:5810
Code: 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 41 57 41 56 41 55 41 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 ff ff ff ff 83 3d b0 34 22 04 00 0f 84 00 01 00 00 65 8b 05 b7
RSP: 0018:ffffc9000348f628 EFLAGS: 00000286
RAX: b285b5747f7f6b00 RBX: ffff88802e898b18 RCX: ffff88801dcd8000
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff88802e898b18
RBP: 0000000000000300 R08: ffffffff8b830b55 R09: ffffffff8b830a8b
R10: 0000000000000004 R11: ffff88801dcd8000 R12: ffff88802e8989c0
R13: 00007f5ac957efff R14: ffff88806c330aa8 R15: dffffc0000000000
lock_is_held include/linux/lockdep.h:231 [inline]
mt_locked lib/maple_tree.c:781 [inline]
mt_slot lib/maple_tree.c:788 [inline]
mas_slot lib/maple_tree.c:821 [inline]
mas_get_slot+0x15e/0x250 lib/maple_tree.c:7057
mt_validate+0x27d2/0x4aa0 lib/maple_tree.c:7596
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+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5ac887cfa7
RSP: 002b:00007ffe31928228 EFLAGS: 00000206 ORIG_RAX: 000000000000000a
RAX: ffffffffffffffda RBX: 00007f5ac957d6c0 RCX: 00007f5ac887cfa7
RDX: 0000000000000003 RSI: 0000000000020000 RDI: 00007f5ac955e000
RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000021000 R11: 0000000000000206 R12: 00007ffe31928480
R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000
rcu: rcu_preempt kthread starved for 10535 jiffies! g27813 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:25072 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a50 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/0x1370 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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 57 Comm: kworker/1:1H Not tainted 6.9.0-next-20240516-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: 0x0 (kblockd)
RIP: 0010:__sanitizer_cov_trace_switch+0x109/0x120 kernel/kcov.c:342
Code: e3 48 c1 e3 05 48 8d 43 28 4c 39 f8 77 a3 49 ff c4 4c 89 21 4c 89 44 0b 08 4c 89 74 0b 10 48 89 7c 0b 18 4c 89 4c 0b 20 eb 87 <5b> 41 5c 41 5e 41 5f c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00
RSP: 0018:ffffc9000132f240 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000b2c RCX: dffffc0000000000
RDX: 0000000000000020 RSI: ffffffff8e381ae0 RDI: 0000000000000004
RBP: 0000000000000004 R08: 0000000000000005 R09: ffffffff819a07d2
R10: 0000000000000020 R11: ffff888016315a00 R12: ffff888017a8c54c
R13: 000000000000053c R14: 000000000000001f R15: 0000000000095364
FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd3b976ff80 CR3: 000000007ba58000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
check_buffer+0x2c2/0xae0 kernel/trace/ring_buffer.c:3462
__rb_reserve_next kernel/trace/ring_buffer.c:3582 [inline]
rb_reserve_next_event kernel/trace/ring_buffer.c:3714 [inline]
ring_buffer_lock_reserve+0x11fc/0x2110 kernel/trace/ring_buffer.c:3773
__trace_buffer_lock_reserve kernel/trace/trace.c:1008 [inline]
trace_event_buffer_lock_reserve+0x2ab/0x6a0 kernel/trace/trace.c:2715
trace_event_buffer_reserve+0x2b7/0x3f0 kernel/trace/trace_events.c:515
trace_event_raw_event_bpf_trace_printk+0x102/0x260 kernel/trace/./bpf_trace.h:11
trace_bpf_trace_printk+0x186/0x1f0 kernel/trace/./bpf_trace.h:11
____bpf_trace_printk kernel/trace/bpf_trace.c:392 [inline]
bpf_trace_printk+0x1bf/0x230 kernel/trace/bpf_trace.c:375
bpf_prog_0605f9f479290f07+0x37/0x3b
bpf_dispatcher_nop_func include/linux/bpf.h:1243 [inline]
__bpf_prog_run include/linux/filter.h:691 [inline]
bpf_prog_run include/linux/filter.h:698 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2403 [inline]
bpf_trace_run1+0x2ca/0x520 kernel/trace/bpf_trace.c:2443
__traceiter_rcu_utilization+0x74/0xb0 include/trace/events/rcu.h:27
trace_rcu_utilization+0x1b4/0x1e0 include/trace/events/rcu.h:27
rcu_note_context_switch+0xca/0xff0 kernel/rcu/tree_plugin.h:318
__schedule+0x348/0x4a50 kernel/sched/core.c:6634
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
worker_thread+0xa2c/0xd70 kernel/workqueue.c:3408
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