INIT: Entering runlevel: 2 [[36minfo[39;49m] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-android-49-kasan-gce-8,10.128.0.45' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 49.578831] ------------[ cut here ]------------ [ 49.579584] WARNING: CPU: 0 PID: 3261 at mm/page_alloc.c:3548 __alloc_pages_slowpath+0x1136/0x1d90 [ 49.580770] Kernel panic - not syncing: panic_on_warn set ... [ 49.580770] [ 49.581768] CPU: 0 PID: 3261 Comm: syzkaller033021 Not tainted 4.9.58-g28b1597 #73 [ 49.582812] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.584031] ffff8801d873f418 ffffffff81d91149 ffffffff83a46b40 ffff8801d873f4f0 [ 49.585160] ffffffff83aa3c00 ffffffff81451a56 0000000000000009 ffff8801d873f4e0 [ 49.586315] ffffffff8142e1f1 0000000041b58ab3 ffffffff84185d28 ffffffff8142e035 [ 49.587443] Call Trace: [ 49.587798] [] dump_stack+0xc1/0x128 [ 49.588506] [] ? __alloc_pages_slowpath+0x1136/0x1d90 [ 49.589406] [] panic+0x1bc/0x3a8 [ 49.590071] [] ? percpu_up_read_preempt_enable.constprop.54+0xd7/0xd7 [ 49.591174] [] ? load_image_and_restore+0xf9/0xf9 [ 49.592028] [] ? __alloc_pages_slowpath+0x1136/0x1d90 [ 49.592944] [] __warn+0x1c4/0x1e0 [ 49.593637] [] warn_slowpath_null+0x2c/0x40 [ 49.594423] [] __alloc_pages_slowpath+0x1136/0x1d90 [ 49.595300] [] ? depot_save_stack+0x3b1/0x4a0 [ 49.596129] [] ? _raw_spin_unlock_irqrestore+0x45/0x70 [ 49.597071] [] ? gfp_pfmemalloc_allowed+0x110/0x110 [ 49.597972] [] ? get_page_from_freelist+0xcff/0x19f0 [ 49.598861] [] ? blk_trace_ioctl+0x1de/0x300 [ 49.599658] [] ? entry_SYSCALL_64_fastpath+0x23/0xc6 [ 49.606380] [] ? __might_sleep+0x95/0x1a0 [ 49.612143] [] __alloc_pages_nodemask+0x33b/0x6b0 [ 49.618602] [] ? __alloc_pages_slowpath+0x1d90/0x1d90 [ 49.625407] [] ? relay_open+0x379/0x860 [ 49.631000] [] kmalloc_order+0x2a/0x70 [ 49.636502] [] kmalloc_order_trace+0x1f/0x190 [ 49.642612] [] __kmalloc+0x19d/0x310 [ 49.647940] [] relay_open_buf.part.15+0xc8/0xa20 [ 49.654314] [] ? _find_next_bit.part.0+0xe0/0x120 [ 49.660768] [] ? memcpy+0x45/0x50 [ 49.665834] [] relay_open+0x4da/0x860 [ 49.671247] [] do_blk_trace_setup+0x3e9/0x950 [ 49.677359] [] blk_trace_setup+0xe0/0x1a0 [ 49.683123] [] ? do_blk_trace_setup+0x950/0x950 [ 49.689406] [] ? disk_name+0x98/0x100 [ 49.694819] [] blk_trace_ioctl+0x1de/0x300 [ 49.700666] [] ? compat_blk_trace_setup+0x250/0x250 [ 49.707298] [] ? avc_has_extended_perms+0x3fc/0xf10 [ 49.713926] [] ? avc_has_extended_perms+0xe2/0xf10 [ 49.720471] [] blkdev_ioctl+0xb00/0x1a60 [ 49.726147] [] ? blkpg_ioctl+0x930/0x930 [ 49.731820] [] ? __lru_cache_add+0x187/0x250 [ 49.737841] [] ? lru_cache_add+0xd9/0x1e0 [ 49.743609] [] ? handle_mm_fault+0xb12/0x2530 [ 49.749717] [] ? _raw_spin_unlock+0x2c/0x50 [ 49.755651] [] ? handle_mm_fault+0x6ee/0x2530 [ 49.761764] [] block_ioctl+0xde/0x120 [ 49.767178] [] ? blkdev_fallocate+0x440/0x440 [ 49.773292] [] do_vfs_ioctl+0x1aa/0x10c0 [ 49.778968] [] ? ioctl_preallocate+0x220/0x220 [ 49.785342] [] ? selinux_file_ioctl+0x355/0x530 [ 49.791627] [] ? selinux_capable+0x40/0x40 [ 49.797478] [] ? up_read+0x1a/0x40 [ 49.802640] [] ? __do_page_fault+0x3c6/0xd70 [ 49.808683] [] ? security_file_ioctl+0x89/0xb0 [ 49.814890] [] SyS_ioctl+0x8f/0xc0 [ 49.820063] [] entry_SYSCALL_64_fastpath+0x23/0xc6 [ 49.826652] Dumping ftrace buffer: [ 49.830164] (ftrace buffer empty) [ 49.833843] Kernel Offset: disabled [ 49.837444] Rebooting in 86400 seconds..