Warning: Permanently added '10.128.0.18' (ECDSA) to the list of known hosts. 2019/10/23 04:53:38 fuzzer started 2019/10/23 04:53:41 dialing manager at 10.128.0.26:45337 2019/10/23 04:53:41 syscalls: 2525 2019/10/23 04:53:41 code coverage: enabled 2019/10/23 04:53:41 comparison tracing: enabled 2019/10/23 04:53:41 extra coverage: extra coverage is not supported by the kernel 2019/10/23 04:53:41 setuid sandbox: enabled 2019/10/23 04:53:41 namespace sandbox: enabled 2019/10/23 04:53:41 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/23 04:53:41 fault injection: enabled 2019/10/23 04:53:41 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/23 04:53:41 net packet injection: enabled 2019/10/23 04:53:41 net device setup: enabled 2019/10/23 04:53:41 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist syzkaller login: [ 72.296061][ T1080] ------------[ cut here ]------------ [ 72.301774][ T1080] WARNING: CPU: 0 PID: 1080 at mm/khugepaged.c:1643 collapse_file+0x1f9d/0x4170 [ 72.310788][ T1080] Kernel panic - not syncing: panic_on_warn set ... [ 72.317533][ T1080] CPU: 0 PID: 1080 Comm: khugepaged Not tainted 5.4.0-rc4-next-20191022 #0 [ 72.326216][ T1080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.336365][ T1080] Call Trace: [ 72.339678][ T1080] dump_stack+0x172/0x1f0 [ 72.344008][ T1080] ? collapse_file+0x1ef0/0x4170 [ 72.349049][ T1080] panic+0x2e3/0x75c [ 72.352939][ T1080] ? add_taint.cold+0x16/0x16 [ 72.357763][ T1080] ? printk+0xba/0xed [ 72.361770][ T1080] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 72.367221][ T1080] ? __warn.cold+0x14/0x35 [ 72.371635][ T1080] ? __warn+0xd9/0x1d0 [ 72.375691][ T1080] ? collapse_file+0x1f9d/0x4170 [ 72.380610][ T1080] __warn.cold+0x2f/0x35 [ 72.384836][ T1080] ? report_bug.cold+0x63/0xb2 [ 72.389583][ T1080] ? collapse_file+0x1f9d/0x4170 [ 72.394506][ T1080] report_bug+0x289/0x300 [ 72.398853][ T1080] do_error_trap+0x11b/0x200 [ 72.403437][ T1080] do_invalid_op+0x37/0x50 [ 72.407839][ T1080] ? collapse_file+0x1f9d/0x4170 [ 72.412944][ T1080] invalid_op+0x23/0x30 [ 72.417173][ T1080] RIP: 0010:collapse_file+0x1f9d/0x4170 [ 72.422701][ T1080] Code: a1 c0 ff 31 c9 ba 01 00 00 00 4c 89 fe 48 8b bd c0 fe ff ff e8 e4 e9 ec ff e9 b4 fd ff ff 4c 8b bd 88 fe ff ff e8 93 a1 c0 ff <0f> 0b 4c 8b a3 50 ff ff ff c7 85 80 fe ff ff 00 00 00 00 e9 05 f6 [ 72.442322][ T1080] RSP: 0018:ffff8880a7d07ad0 EFLAGS: 00010293 [ 72.448399][ T1080] RAX: ffff8880a7ccc440 RBX: ffff8880a7d07c88 RCX: ffffffff81b2b688 [ 72.456357][ T1080] RDX: 0000000000000000 RSI: ffffffff81b2b9ad RDI: 0000000000000001 [ 72.464418][ T1080] RBP: ffff8880a7d07cb0 R08: ffff8880a7ccc440 R09: fffff94000495fd1 [ 72.472455][ T1080] R10: fffff94000495fd0 R11: ffffea00024afe87 R12: 0000000000000001 [ 72.480457][ T1080] R13: ffffea0002389008 R14: 0000000000000000 R15: ffffea0002248000 [ 72.488443][ T1080] ? collapse_file+0x1c78/0x4170 [ 72.493367][ T1080] ? collapse_file+0x1f9d/0x4170 [ 72.498295][ T1080] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 72.504442][ T1080] ? khugepaged+0x21d0/0x4360 [ 72.509109][ T1080] ? trace_event_raw_event_mm_collapse_huge_page_isolate+0x370/0x370 [ 72.518238][ T1080] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 72.523941][ T1080] ? khugepaged_find_target_node+0x142/0x180 [ 72.529914][ T1080] khugepaged+0x2da9/0x4360 [ 72.534452][ T1080] ? __kasan_check_read+0x11/0x20 [ 72.539497][ T1080] ? __lock_acquire+0x16f2/0x4a00 [ 72.544549][ T1080] ? _raw_spin_unlock_irq+0x23/0x80 [ 72.549771][ T1080] ? finish_task_switch+0x147/0x750 [ 72.554954][ T1080] ? _raw_spin_unlock_irq+0x23/0x80 [ 72.560142][ T1080] ? lockdep_hardirqs_on+0x421/0x5e0 [ 72.565425][ T1080] ? collapse_pte_mapped_thp+0xbe0/0xbe0 [ 72.571042][ T1080] ? lock_downgrade+0x920/0x920 [ 72.575885][ T1080] ? finish_wait+0x260/0x260 [ 72.580468][ T1080] ? lockdep_hardirqs_on+0x421/0x5e0 [ 72.585741][ T1080] ? trace_hardirqs_on+0x67/0x240 [ 72.590752][ T1080] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 72.596980][ T1080] ? __kthread_parkme+0x108/0x1c0 [ 72.602018][ T1080] ? __kasan_check_read+0x11/0x20 [ 72.607030][ T1080] kthread+0x361/0x430 [ 72.611084][ T1080] ? collapse_pte_mapped_thp+0xbe0/0xbe0 [ 72.616700][ T1080] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 72.622434][ T1080] ret_from_fork+0x24/0x30 [ 72.627697][ T1080] Kernel Offset: disabled [ 72.632086][ T1080] Rebooting in 86400 seconds..