rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (10499 ticks this GP) idle=c404/1/0x4000000000000000 softirq=17454/2509368 fqs=4892
rcu: hardirqs softirqs csw/system
rcu: number: 17 1250397 0
rcu: cputime: 1071 50035 1375 ==> 52490(ms)
rcu: (t=10500 jiffies g=13749 q=3179 ncpus=2)
CPU: 0 UID: 0 PID: 6939 Comm: syz.0.217 Not tainted 6.12.0-syzkaller-g27802ca14cae #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:246 [inline]
RIP: 0010:__sanitizer_cov_trace_switch+0xb2/0x120 kernel/kcov.c:351
Code: c0 d4 03 00 31 d2 eb 08 48 ff c2 49 39 d2 74 71 4c 8b 74 d6 10 65 8b 05 94 ee 6d 7e 25 00 01 ff 00 74 11 3d 00 01 00 00 75 de <41> 83 bb 1c 16 00 00 00 74 d4 41 8b 83 f8 15 00 00 83 f8 03 75 c8
RSP: 0018:ffffc90000007348 EFLAGS: 00000246
RAX: 0000000000000100 RBX: 0000000000000004 RCX: ffff888025818000
RDX: 0000000000000006 RSI: ffffffff8e9920e0 RDI: 0000000000000004
RBP: 000000000000000a R08: 0000000000000005 R09: ffffffff8197d395
R10: 0000000000000020 R11: ffff888025818000 R12: dffffc0000000000
R13: 00000000000000b4 R14: 0000000000000006 R15: 00000000000642e4
FS: 00007f157a1f66c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff2a08c1fe4 CR3: 000000006069e000 CR4: 00000000003526f0
DR0: 0000000020000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
rb_event_length+0x45/0x400 kernel/trace/ring_buffer.c:218
rb_read_data_buffer+0x3fd/0x520 kernel/trace/ring_buffer.c:1749
check_buffer+0x35e/0x850 kernel/trace/ring_buffer.c:4221
__rb_reserve_next kernel/trace/ring_buffer.c:4320 [inline]
rb_reserve_next_event kernel/trace/ring_buffer.c:4452 [inline]
ring_buffer_lock_reserve+0x12a9/0x21c0 kernel/trace/ring_buffer.c:4511
__trace_buffer_lock_reserve kernel/trace/trace.c:1020 [inline]
trace_event_buffer_lock_reserve+0x2ab/0x6a0 kernel/trace/trace.c:2746
trace_event_buffer_reserve+0x2b7/0x3f0 kernel/trace/trace_events.c:515
do_trace_event_raw_event_bpf_trace_printk kernel/trace/bpf_trace.h:11 [inline]
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:391 [inline]
bpf_trace_printk+0x1bf/0x230 kernel/trace/bpf_trace.c:374
bpf_prog_0605f9f479290f07+0x38/0x3c
bpf_dispatcher_nop_func include/linux/bpf.h:1290 [inline]
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run include/linux/filter.h:708 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2351 [inline]
bpf_trace_run1+0x2ca/0x520 kernel/trace/bpf_trace.c:2391
trace_rcu_utilization+0x1b4/0x1e0 include/trace/events/rcu.h:27
rcu_core+0x133/0x17a0 kernel/rcu/tree.c:2795
handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu+0xf7/0x220 kernel/softirq.c:655
irq_exit_rcu+0x9/0x30 kernel/softirq.c:671
instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17
asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738
RIP: 0010:rcu_read_unlock_special+0x88/0x570 kernel/rcu/tree_plugin.h:693
Code: f1 f1 f1 00 f2 f2 f2 49 89 04 14 66 41 c7 44 14 09 f3 f3 41 c6 44 14 0b f3 65 44 8b 3d 19 7b 87 7e 41 f7 c7 00 00 f0 00 74 49 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 22 00 00 00 00 66 42 c7 44 22
RSP: 0018:ffffc90003366620 EFLAGS: 00000206
RAX: c773d6b88dbb2400 RBX: 1ffff9200066cccc RCX: ffffffff9a426903
RDX: dffffc0000000000 RSI: ffffffff8c0ad880 RDI: ffffffff8c615460
RBP: ffffc900033666f8 R08: ffffffff901e4037 R09: 1ffffffff203c806
R10: dffffc0000000000 R11: fffffbfff203c807 R12: 1ffff9200066ccc8
R13: ffff888025818460 R14: ffffc90003366660 R15: ffffffff8e941300
__rcu_read_unlock+0xa1/0x110 kernel/rcu/tree_plugin.h:437
rcu_read_unlock include/linux/rcupdate.h:882 [inline]
trace_call_bpf+0x607/0x8a0 kernel/trace/bpf_trace.c:148
perf_trace_run_bpf_submit+0x82/0x180 kernel/events/core.c:10473
do_perf_trace_lock_acquire include/trace/events/lock.h:24 [inline]
perf_trace_lock_acquire+0x3c3/0x4f0 include/trace/events/lock.h:24
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0x51b/0x550 kernel/locking/lockdep.c:5820
__fs_reclaim_acquire mm/page_alloc.c:3851 [inline]
fs_reclaim_acquire+0x88/0x130 mm/page_alloc.c:3865
might_alloc include/linux/sched/mm.h:318 [inline]
slab_pre_alloc_hook mm/slub.c:4036 [inline]
slab_alloc_node mm/slub.c:4114 [inline]
__do_kmalloc_node mm/slub.c:4263 [inline]
__kmalloc_node_track_caller_noprof+0xab/0x440 mm/slub.c:4283
__do_krealloc mm/slab_common.c:1229 [inline]
krealloc_noprof+0x88/0x120 mm/slab_common.c:1278
copy_array kernel/bpf/verifier.c:1243 [inline]
copy_stack_state kernel/bpf/verifier.c:1298 [inline]
copy_func_state kernel/bpf/verifier.c:1480 [inline]
copy_verifier_state+0x865/0xec0 kernel/bpf/verifier.c:1519
is_state_visited kernel/bpf/verifier.c:18413 [inline]
do_check+0x4522/0xfcd0 kernel/bpf/verifier.c:18575
do_check_common+0x1564/0x2010 kernel/bpf/verifier.c:21848
do_check_main kernel/bpf/verifier.c:21939 [inline]
bpf_check+0x19380/0x1f1b0 kernel/bpf/verifier.c:22656
bpf_prog_load+0x1667/0x20f0 kernel/bpf/syscall.c:2947
__sys_bpf+0x4ee/0x810 kernel/bpf/syscall.c:5790
__do_sys_bpf kernel/bpf/syscall.c:5897 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5895 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5895
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: 0033:0x7f157937e819
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:00007f157a1f6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f1579535fa0 RCX: 00007f157937e819
RDX: 0000000000000048 RSI: 00000000200017c0 RDI: 0000000000000005
RBP: 00007f15793f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1579535fa0 R15: 00007fff41f26098