WARNING: CPU: 1 PID: 2749 at kernel/kcov.c:684 kcov_remote_start.cold+0xc/0x26 kernel/kcov.c:684
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 2749 Comm: udevd Not tainted 5.3.0-rc7+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xca/0x13e lib/dump_stack.c:113
 panic+0x2a3/0x6da kernel/panic.c:219
 __warn.cold+0x20/0x4a kernel/panic.c:576
 report_bug+0x262/0x2a0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x12b/0x1e0 arch/x86/kernel/traps.c:272
 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:291
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028
RIP: 0010:kcov_remote_start.cold+0xc/0x26 kernel/kcov.c:684
Code: b0 f8 ff ff 48 c7 c7 d8 dd a4 86 e8 54 93 ea ff 0f 0b 5b 4c 89 e7 5d 41 5c e9 9d e7 2f 04 48 c7 c7 d8 dd a4 86 e8 3a 93 ea ff <0f> 0b e9 93 fd ff ff 48 c7 c7 d8 dd a4 86 e8 27 93 ea ff 0f 0b e9
RSP: 0018:ffff8881db309ae8 EFLAGS: 00010082
RAX: 0000000000000024 RBX: ffff8881d56ac400 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81288ddd RDI: ffffed103b66134f
RBP: ffff8881d56ac400 R08: 0000000000000024 R09: ffffed103b665d58
R10: ffffed103b665d57 R11: ffff8881db32eabf R12: ffff8881c94edf08
R13: ffff8881d5608038 R14: dffffc0000000000 R15: ffff8881d28b3900
 dummy_timer+0x125f/0x301a drivers/usb/gadget/udc/dummy_hcd.c:1965
 call_timer_fn+0x179/0x650 kernel/time/timer.c:1322
 expire_timers kernel/time/timer.c:1366 [inline]
 __run_timers kernel/time/timer.c:1685 [inline]
 __run_timers kernel/time/timer.c:1653 [inline]
 run_timer_softirq+0x5cc/0x14b0 kernel/time/timer.c:1698
 __do_softirq+0x221/0x912 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x178/0x1a0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:537 [inline]
 smp_apic_timer_interrupt+0x12f/0x500 arch/x86/kernel/apic/apic.c:1133
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:85 [inline]
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x40/0x50 kernel/locking/spinlock.c:191
Code: e8 95 a1 b7 fb 48 89 ef e8 3d 82 b8 fb f6 c7 02 75 11 53 9d e8 f1 34 d5 fb 65 ff 0d 82 1d 94 7a 5b 5d c3 e8 02 33 d5 fb 53 9d <eb> ed 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 fd 65 ff
RSP: 0018:ffff8881c854f850 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000007 RBX: 0000000000000a02 RCX: 0000000000000006
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881c9290844
RBP: ffffffff8914a648 R08: ffff8881c9290000 R09: fffffbfff11ad795
R10: fffffbfff11ad794 R11: ffffffff88d6bca7 R12: ffff8881c9ae7000
R13: ffffffff8914a648 R14: 0000000000000000 R15: 0000000000000000
 __debug_check_no_obj_freed lib/debugobjects.c:973 [inline]
 debug_check_no_obj_freed+0x20f/0x443 lib/debugobjects.c:994
 slab_free_hook mm/slub.c:1420 [inline]
 slab_free_freelist_hook mm/slub.c:1474 [inline]
 slab_free mm/slub.c:3016 [inline]
 kmem_cache_free+0x1ce/0x380 mm/slub.c:3032
 pgtable_page_dtor include/linux/mm.h:1986 [inline]
 ___pte_free_tlb+0x19/0xb0 arch/x86/mm/pgtable.c:48
 __pte_free_tlb arch/x86/include/asm/pgalloc.h:60 [inline]
 free_pte_range mm/memory.c:200 [inline]
 free_pmd_range mm/memory.c:218 [inline]
 free_pud_range mm/memory.c:252 [inline]
 free_p4d_range mm/memory.c:286 [inline]
 free_pgd_range+0x494/0xcf0 mm/memory.c:366
 free_pgtables+0x230/0x2f0 mm/memory.c:398
 exit_mmap+0x287/0x4d0 mm/mmap.c:3146
 __mmput kernel/fork.c:1064 [inline]
 mmput+0xce/0x3d0 kernel/fork.c:1085
 exec_mmap fs/exec.c:1047 [inline]
 flush_old_exec+0x86f/0x1ea0 fs/exec.c:1280
 load_elf_binary+0x99b/0x5090 fs/binfmt_elf.c:867
 search_binary_handler fs/exec.c:1658 [inline]
 search_binary_handler+0x16b/0x580 fs/exec.c:1635
 exec_binprm fs/exec.c:1701 [inline]
 __do_execve_file.isra.0+0x130e/0x2280 fs/exec.c:1821
 do_execveat_common fs/exec.c:1868 [inline]
 do_execve fs/exec.c:1885 [inline]
 __do_sys_execve fs/exec.c:1961 [inline]
 __se_sys_execve fs/exec.c:1956 [inline]
 __x64_sys_execve+0x8a/0xb0 fs/exec.c:1956
 do_syscall_64+0xb7/0x580 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f861183c207
Code: Bad RIP value.
RSP: 002b:00007ffee14fc428 EFLAGS: 00000206 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007f861183c207
RDX: 0000000000b3af50 RSI: 00007ffee14fc520 RDI: 00007ffee14fd530
RBP: 0000000000625500 R08: 0000000000000157 R09: 0000000000000157
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000b3af50
R13: 0000000000000007 R14: 0000000000b29250 R15: 0000000000000005
Kernel Offset: disabled
Rebooting in 86400 seconds..