rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=ddd4/1/0x4000000000000000 softirq=88369/88371 fqs=107
rcu: (detected by 1, t=10502 jiffies, g=161109, q=298 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 31031 Comm: syz-executor.1 Not tainted 6.6.0-syzkaller-14263-gaea6bf908d73 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
RIP: 0010:lock_acquire+0x1f/0x510 kernel/locking/lockdep.c:5721
Code: 1f 84 00 00 00 00 00 0f 1f 40 00 f3 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 41 57 4d 89 cf 41 56 49 89 fe 41 55 41 89 d5 41 54 <45> 89 c4 55 53 48 81 ec b0 00 00 00 48 8d 5c 24 10 89 34 24 48 c1
RSP: 0018:ffffc90000007ce0 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffffff8da29240
RBP: ffffc90000007e00 R08: 0000000000000001 R09: 0000000000000000
R10: ffffc90000007d30 R11: 0000000000000000 R12: ffffffff8466d664
R13: 0000000000000001 R14: ffffffff8da29240 R15: 0000000000000000
FS: 00007f47e5fff6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6189cc56be CR3: 000000001dc82000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
debug_objects_fill_pool lib/debugobjects.c:614 [inline]
debug_object_activate+0x144/0x490 lib/debugobjects.c:713
debug_hrtimer_activate kernel/time/hrtimer.c:422 [inline]
debug_activate kernel/time/hrtimer.c:477 [inline]
enqueue_hrtimer+0x23/0x310 kernel/time/hrtimer.c:1087
__run_hrtimer kernel/time/hrtimer.c:1705 [inline]
__hrtimer_run_queues+0xa0a/0xc10 kernel/time/hrtimer.c:1752
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline]
__sysvec_apic_timer_interrupt+0x105/0x3f0 arch/x86/kernel/apic/apic.c:1082
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1076
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x70 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 06 6a e4 f6 48 89 df e8 fe e8 e4 f6 f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f 01 00 00 00 e8 45 35 d6 f6 65 8b 05 46 36 80 75 85 c0 74 12 5b
RSP: 0018:ffffc9000476fa78 EFLAGS: 00000246
RAX: 0000000000000006 RBX: ffff8880b982b940 RCX: 1ffffffff23e1116
RDX: 0000000000000000 RSI: ffffffff8acca9a0 RDI: ffffffff8b2e5700
RBP: 0000000000000282 R08: 0000000000000001 R09: fffffbfff23e0fd0
R10: ffffffff91f07e87 R11: 0000000000000002 R12: fe232cd0f172c5fd
R13: 0000000000000000 R14: 000003209f255e15 R15: dffffc0000000000
clock_was_set+0x592/0x850 kernel/time/hrtimer.c:972
timekeeping_inject_offset+0x4d1/0x640 kernel/time/timekeeping.c:1395
do_adjtimex+0x373/0xaa0 kernel/time/timekeeping.c:2444
do_clock_adjtime kernel/time/posix-timers.c:1159 [inline]
__do_sys_clock_adjtime+0x173/0x280 kernel/time/posix-timers.c:1171
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f47e527cae9
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:00007f47e5fff0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007f47e539c050 RCX: 00007f47e527cae9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f47e52c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f47e539c050 R15: 00007fff7d71c678
rcu: rcu_preempt kthread starved for 10287 jiffies! g161109 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:28224 pid:16 tgid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0xee2/0x59a0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xe7/0x270 kernel/sched/core.c:6778
schedule_timeout+0x157/0x2c0 kernel/time/timer.c:2167
rcu_gp_fqs_loop+0x1ec/0xb10 kernel/rcu/tree.c:1626
rcu_gp_kthread+0x249/0x380 kernel/rcu/tree.c:1825
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 30275 Comm: kworker/1:15 Not tainted 6.6.0-syzkaller-14263-gaea6bf908d73 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
Workqueue: events bpf_prog_free_deferred
RIP: 0010:csd_lock_wait kernel/smp.c:311 [inline]
RIP: 0010:smp_call_function_many_cond+0x4d6/0x1570 kernel/smp.c:855
Code: 0b 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 fc 4c 89 fd 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 cc c4 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 3c 0e 00 00 8b 43 08 31
RSP: 0018:ffffc90010d77870 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff8880b98414c0 RCX: ffffffff817bcdea
RDX: ffff88807cf82100 RSI: ffffffff817bcdc4 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffed1017308299
R13: 0000000000000001 R14: ffff8880b993d900 R15: ffff8880b98414c8
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc3dff75198 CR3: 000000001dc82000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1023
__purge_vmap_area_lazy+0x203/0x2160 mm/vmalloc.c:1749
_vm_unmap_aliases+0x693/0x9b0 mm/vmalloc.c:2306
vm_reset_perms mm/vmalloc.c:2753 [inline]
vfree mm/vmalloc.c:2832 [inline]
vfree+0x954/0xe40 mm/vmalloc.c:2807
bpf_prog_unlock_free include/linux/filter.h:924 [inline]
bpf_jit_free include/linux/filter.h:1210 [inline]
bpf_prog_free_deferred+0x534/0x720 kernel/bpf/core.c:2740
process_one_work+0x884/0x15c0 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242