rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (0 ticks this GP) idle=7fb/1/0x4000000000000000 softirq=58649/58649 fqs=0
(detected by 1, t=10502 jiffies, g=85017, q=48)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 22979 Comm: syz-executor.2 Not tainted 5.17.0-rc2-next-20220204-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_release kernel/locking/lockdep.c:5344 [inline]
RIP: 0010:lock_release+0x2e5/0x720 kernel/locking/lockdep.c:5659
Code: 04 02 84 c0 74 08 3c 03 0f 8e 7f 03 00 00 48 89 da 45 89 a7 60 0a 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 <0f> 85 aa 03 00 00 49 8d bf 58 0a 00 00 48 8b 1b 48 b8 00 00 00 00
RSP: 0018:ffffc90000007cf8 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffff88807c0f4560 RCX: ffffc90000007d48
RDX: 1ffff1100f81e8ac RSI: 0000000000000000 RDI: ffff88807c0f4582
RBP: 1ffff92000000fa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000003
R13: 0000000000000004 R14: ffff88807c0f44e0 R15: ffff88807c0f3a80
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f302a0ca718 CR3: 00000000249ff000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline]
_raw_spin_unlock+0x12/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:394 [inline]
advance_sched+0x435/0x9a0 net/sched/sch_taprio.c:763
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x609/0xe50 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:constant_test_bit arch/x86/include/asm/bitops.h:207 [inline]
RIP: 0010:test_bit include/asm-generic/bitops/instrumented-non-atomic.h:135 [inline]
RIP: 0010:folio_test_slab include/linux/page-flags.h:497 [inline]
RIP: 0010:__folio_memcg include/linux/memcontrol.h:396 [inline]
RIP: 0010:folio_memcg include/linux/memcontrol.h:448 [inline]
RIP: 0010:folio_memcg_lock+0xfb/0x6c0 mm/memcontrol.c:2023
Code: 8b 7d d0 0f 85 07 03 00 00 e8 11 bc fe ff be 08 00 00 00 49 89 c5 48 89 c7 e8 f1 30 f9 ff 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 <0f> 85 f8 04 00 00 49 8b 45 00 f6 c4 02 0f 85 37 04 00 00 48 83 e3
RSP: 0018:ffffc9000434f6c8 EFLAGS: 00000246
RAX: 1ffffd40000e5b18 RBX: 0000000000000000 RCX: ffffffff81caf02f
RDX: fffff940000e5b19 RSI: 0000000000000008 RDI: ffffea000072d8c0
RBP: ffffc9000434f718 R08: 0000000000000000 R09: ffffea000072d8c7
R10: fffff940000e5b18 R11: 0000000000000000 R12: dffffc0000000000
R13: ffffea000072d8c0 R14: ffffea000072d8f8 R15: ffffea000072d8c8
page_remove_rmap+0x25/0x1d10 mm/rmap.c:1379
zap_pte_range mm/memory.c:1380 [inline]
zap_pmd_range mm/memory.c:1490 [inline]
zap_pud_range mm/memory.c:1519 [inline]
zap_p4d_range mm/memory.c:1540 [inline]
unmap_page_range+0xf35/0x32a0 mm/memory.c:1561
unmap_single_vma+0x198/0x310 mm/memory.c:1606
unmap_vmas+0x16b/0x2f0 mm/memory.c:1638
exit_mmap+0x200/0x670 mm/mmap.c:3178
__mmput+0x122/0x4b0 kernel/fork.c:1115
mmput+0x56/0x60 kernel/fork.c:1136
exit_mm kernel/exit.c:507 [inline]
do_exit+0xa0d/0x2aa0 kernel/exit.c:793
do_group_exit+0xd2/0x2f0 kernel/exit.c:935
get_signal+0x4b0/0x28c0 kernel/signal.c:2862
arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
handle_signal_work kernel/entry/common.c:148 [inline]
exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fd452556059
Code: Unable to access opcode bytes at RIP 0x7fd45255602f.
RSP: 002b:00007fd4514aa218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007fd452669038 RCX: 00007fd452556059
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fd45266903c
RBP: 00007fd452669030 R08: 00007fff6b9a1080 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fd45266903c
R13: 00007fff6b81ffff R14: 00007fd4514aa300 R15: 0000000000022000
rcu: rcu_preempt kthread starved for 10502 jiffies! g85017 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:28752 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5000 [inline]
__schedule+0xab2/0x4db0 kernel/sched/core.c:6309
schedule+0xd2/0x1f0 kernel/sched/core.c:6381
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1972
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2145
kthread+0x2e9/0x3a0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 1
CPU: 1 PID: 3679 Comm: kworker/1:9 Not tainted 5.17.0-rc2-next-20220204-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events bpf_prog_free_deferred
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:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_check_gp_kthread_starvation.cold+0x1fb/0x200 kernel/rcu/tree_stall.h:490
print_other_cpu_stall kernel/rcu/tree_stall.h:595 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:741 [inline]
rcu_pending kernel/rcu/tree.c:3926 [inline]
rcu_sched_clock_irq+0x1f7c/0x2150 kernel/rcu/tree.c:2626
update_process_times+0x16d/0x200 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:243
tick_sched_timer+0xee/0x120 kernel/time/tick-sched.c:1445
__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+0x2e/0x40 kernel/kcov.c:177
Code: cb 89 7e 89 c2 81 e2 00 01 00 00 a9 00 01 ff 00 74 10 31 c0 85 d2 74 15 8b 96 ac 15 00 00 85 d2 74 0b 8b 86 88 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 65 8b
RSP: 0018:ffffc90002bbf970 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff8880b9c42400 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffff88801ed08000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff816d207a R11: 0000000000000000 R12: ffffed1017388481
R13: 0000000000000000 R14: ffff8880b9c42408 R15: 0000000000000001
write_comp_data kernel/kcov.c:221 [inline]
__sanitizer_cov_trace_const_cmp4+0x1c/0x70 kernel/kcov.c:287
csd_lock_wait kernel/smp.c:440 [inline]
smp_call_function_many_cond+0x50a/0xc90 kernel/smp.c:969
on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1135
__purge_vmap_area_lazy+0x1f6/0x1c50 mm/vmalloc.c:1696
_vm_unmap_aliases.part.0+0x3f0/0x500 mm/vmalloc.c:2122
_vm_unmap_aliases mm/vmalloc.c:2096 [inline]
vm_remove_mappings mm/vmalloc.c:2621 [inline]
__vunmap+0x620/0xc50 mm/vmalloc.c:2648
__vfree+0x3c/0xd0 mm/vmalloc.c:2707
vfree+0x5a/0x90 mm/vmalloc.c:2738
bpf_jit_binary_free kernel/bpf/core.c:908 [inline]
bpf_jit_free+0xbb/0x1c0 kernel/bpf/core.c:921
bpf_prog_free_deferred+0x5c1/0x790 kernel/bpf/core.c:2292
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: 04 02 add $0x2,%al
2: 84 c0 test %al,%al
4: 74 08 je 0xe
6: 3c 03 cmp $0x3,%al
8: 0f 8e 7f 03 00 00 jle 0x38d
e: 48 89 da mov %rbx,%rdx
11: 45 89 a7 60 0a 00 00 mov %r12d,0xa60(%r15)
18: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1f: fc ff df
22: 48 c1 ea 03 shr $0x3,%rdx
26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
* 2a: 0f 85 aa 03 00 00 jne 0x3da <-- trapping instruction
30: 49 8d bf 58 0a 00 00 lea 0xa58(%r15),%rdi
37: 48 8b 1b mov (%rbx),%rbx
3a: 48 rex.W
3b: b8 00 00 00 00 mov $0x0,%eax