rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (1 GPs behind) idle=2d64/1/0x4000000000000000 softirq=161165/161167 fqs=42
rcu: (detected by 0, t=10502 jiffies, g=101397, q=920 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 24415 Comm: syz.7.5638 Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__lock_is_held kernel/locking/lockdep.c:5590 [inline]
RIP: 0010:lock_is_held_type+0xb0/0x150 kernel/locking/lockdep.c:5921
Code: 00 41 83 c7 01 45 3b bc 24 d8 0a 00 00 0f 8d 80 00 00 00 49 63 c7 48 89 ee 48 8d 04 80 49 8d 5c c5 00 48 89 df e8 80 fe ff ff <85> c0 74 d3 41 83 fe ff 41 bd 01 00 00 00 74 13 31 c0 f6 43 22 03
RSP: 0018:ffffc90000a18d40 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff888052838ae0 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffff888034c07300 RDI: ffff888052838ae0
RBP: ffff888034c07300 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888052838000
R13: ffff888052838ae0 R14: 00000000ffffffff R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fabf2ea56c0 CR3: 0000000077ba8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_is_held include/linux/lockdep.h:249 [inline]
advance_sched+0x790/0xc60 net/sched/sch_taprio.c:927
__run_hrtimer kernel/time/hrtimer.c:1739 [inline]
__hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1803
hrtimer_interrupt+0x392/0x8e0 kernel/time/hrtimer.c:1865
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x10f/0x400 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_is_held_type+0x107/0x150 kernel/locking/lockdep.c:5926
Code: 00 00 b8 ff ff ff ff 65 0f c1 05 4c d2 d8 74 83 f8 01 75 2d 9c 58 f6 c4 02 75 43 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 45 31 ed eb
RSP: 0018:ffffc9000471f920 EFLAGS: 00000292
RAX: 0000000000000046 RBX: ffff888052838ae0 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8b6cdce0 RDI: ffffffff8bd1ed60
RBP: ffffffff8e1bb840 R08: 0000000000000001 R09: fffffbfff2dca39f
R10: ffffffff96e51cff R11: 0000000000000001 R12: ffff888052838000
R13: 0000000000000000 R14: 00000000ffffffff R15: 0000000000000001
lock_is_held include/linux/lockdep.h:249 [inline]
__might_resched+0x4ca/0x5e0 kernel/sched/core.c:8720
exit_mmap+0x4f5/0xb20 mm/mmap.c:1694
__mmput+0x12a/0x4c0 kernel/fork.c:1348
mmput+0x62/0x70 kernel/fork.c:1370
exit_mm kernel/exit.c:570 [inline]
do_exit+0x9ba/0x2d70 kernel/exit.c:925
do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
get_signal+0x24ed/0x26c0 kernel/signal.c:3017
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fba83385d29
Code: Unable to access opcode bytes at 0x7fba83385cff.
RSP: 002b:00007fba841700e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fba83576088 RCX: 00007fba83385d29
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fba83576088
RBP: 00007fba83576080 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fba8357608c
R13: 0000000000000000 R14: 00007ffc4e758eb0 R15: 00007ffc4e758f98
rcu: rcu_preempt kthread starved for 10418 jiffies! g101397 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:26416 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6848
schedule_timeout+0x124/0x280 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2045
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2247
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 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:
CPU: 0 UID: 0 PID: 24434 Comm: syz.8.5649 Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x8/0x20 kernel/kcov.c:314
Code: bf 03 00 00 00 e9 58 fe ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 0c 24 <89> f2 89 fe bf 05 00 00 00 e9 2a fe ff ff 66 2e 0f 1f 84 00 00 00
RSP: 0018:ffffc90004cdf5a0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffff8880b8744a40 RCX: ffffffff818e071c
RDX: 0000000000080000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000005 R12: ffffed10170e8949
R13: 0000000000000001 R14: ffff8880b8744a48 R15: ffff8880b863fe40
FS: 00007fabf2fab6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f882fa462cb CR3: 00000000593b0000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
csd_lock_wait kernel/smp.c:340 [inline]
smp_call_function_many_cond+0x47c/0x1300 kernel/smp.c:884
on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1051
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:2114 [inline]
text_poke_bp_batch+0x22b/0x760 arch/x86/kernel/alternative.c:2324
text_poke_bp+0xa3/0xd0 arch/x86/kernel/alternative.c:2551
__static_call_transform+0x34d/0x770 arch/x86/kernel/static_call.c:111
arch_static_call_transform+0x5d/0xb0 arch/x86/kernel/static_call.c:163
__static_call_update+0xee/0x660 kernel/static_call_inline.c:147
tracepoint_update_call kernel/tracepoint.c:271 [inline]
tracepoint_add_func+0xa90/0xeb0 kernel/tracepoint.c:312
tracepoint_probe_register_prio_may_exist+0xbd/0x110 kernel/tracepoint.c:435
tracepoint_probe_register_may_exist include/linux/tracepoint.h:50 [inline]
bpf_probe_register+0x189/0x200 kernel/trace/bpf_trace.c:2430
bpf_raw_tp_link_attach+0x2cd/0x5f0 kernel/bpf/syscall.c:3981
bpf_raw_tracepoint_open kernel/bpf/syscall.c:4012 [inline]
__sys_bpf+0x3a4/0x49c0 kernel/bpf/syscall.c:5832
__do_sys_bpf kernel/bpf/syscall.c:5897 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5895 [inline]
__x64_sys_bpf+0x78/0xc0 kernel/bpf/syscall.c:5895
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fabf2185d29
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fabf2fab038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fabf2375fa0 RCX: 00007fabf2185d29
RDX: 0000000000000010 RSI: 0000000020000180 RDI: 0000000000000011
RBP: 00007fabf2201aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fabf2375fa0 R15: 00007ffd97a75ea8