| TITLE: INFO: rcu detected stall in perf_mmap |
| |
| [ 323.391020] INFO: rcu_sched self-detected stall on CPU |
| [ 323.396363] 1-...: (64999 ticks this GP) idle=97a/140000000000001/0 softirq=7370/7370 fqs=16241 |
| [ 323.405345] (t=65000 jiffies g=4163 c=4162 q=64) |
| [ 323.410286] NMI backtrace for cpu 1 |
| [ 323.413913] CPU: 1 PID: 1885 Comm: syz-executor921 Not tainted 4.14.49+ #8 |
| [ 323.420908] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 |
| [ 323.430246] Call Trace: |
| [ 323.432801] <IRQ> |
| [ 323.434933] dump_stack+0x114/0x1cf |
| [ 323.457051] nmi_cpu_backtrace.cold.2+0x19/0x95 |
| [ 323.471164] nmi_trigger_cpumask_backtrace+0x102/0x143 |
| [ 323.476417] arch_trigger_cpumask_backtrace+0x19/0x20 |
| [ 323.481585] rcu_dump_cpu_stacks+0x177/0x1c4 |
| [ 323.485974] check_cpu_stall.isra.56.cold.74+0x289/0x4c3 |
| [ 323.569083] rcu_check_callbacks+0x2e4/0xe20 |
| [ 323.620799] update_process_times+0x35/0x70 |
| [ 323.625119] tick_sched_handle+0x8a/0x150 |
| [ 323.629243] tick_sched_timer+0x47/0x120 |
| [ 323.637661] __hrtimer_run_queues+0x4ea/0x1150 |
| [ 323.715212] hrtimer_interrupt+0x1b1/0x5b0 |
| [ 323.719432] smp_apic_timer_interrupt+0x1f9/0x870 |
| [ 323.756898] apic_timer_interrupt+0x8e/0xa0 |
| [ 323.761194] </IRQ> |
| [ 323.763409] RIP: 0010:lock_is_held_type+0x115/0x160 |
| [ 323.768396] RSP: 0018:ffff8801c5abf228 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10 |
| [ 323.776082] RAX: 0000000000000000 RBX: 1ffff10038b57e46 RCX: 0000000000000000 |
| [ 323.783326] RDX: 0000000000000000 RSI: ffffffff83efc6c0 RDI: 0000000000000246 |
| [ 323.790578] RBP: ffff8801c5abf2b0 R08: ffffffff81566839 R09: ffffffff8518b320 |
| [ 323.797822] R10: ffff8801c5abf700 R11: 0000000000000000 R12: 0000000000000000 |
| [ 323.805074] R13: ffffffff8385a220 R14: 00000000000002eb R15: 0000000000000000 |
| [ 323.832368] __might_sleep+0x9a/0x190 |
| [ 323.848601] __mutex_lock+0x143/0x19c0 |
| [ 323.917528] mutex_lock_nested+0x1b/0x20 |
| [ 323.925769] perf_mmap+0x689/0x17f0 |
| [ 323.969686] mmap_region+0xba0/0x1660 |
| [ 323.998425] do_mmap+0x730/0xea0 |
| [ 324.018118] vm_mmap_pgoff+0x1e3/0x270 |
| [ 324.033674] SyS_mmap_pgoff+0x46d/0x630 |
| [ 324.055175] SyS_mmap+0x1b/0x30 |
| [ 324.058439] do_syscall_64+0x251/0x750 |
| [ 324.087114] entry_SYSCALL_64_after_hwframe+0x42/0xb7 |
| [ 324.092288] RIP: 0033:0x445e09 |
| [ 324.095451] RSP: 002b:00007eff4d398d98 EFLAGS: 00000212 ORIG_RAX: 0000000000000009 |
| [ 324.103133] RAX: ffffffffffffffda RBX: 00000000006dac5c RCX: 0000000000445e09 |
| [ 324.110376] RDX: 0000000000000000 RSI: 0000000000001000 RDI: 00000000201bf000 |
| [ 324.117619] RBP: 00000000006dac58 R08: 0000000000000301 R09: 0000000000000000 |
| [ 324.124872] R10: 0080000000004011 R11: 0000000000000212 R12: 7479625f6e695f65 |
| [ 324.132116] R13: 676173752e424d32 R14: 2e626c7465677568 R15: 0000000000000009 |
