------------[ cut here ]------------ WARNING: CPU: 1 PID: 3819 at mm/page_alloc.c:3544 __alloc_pages_slowpath+0x1136/0x1d90 mm/page_alloc.c:3544 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 3819 Comm: syzkaller657379 Not tainted 4.9.80-g20c8a00 #30 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d7ee7428 ffffffff81d94b69 ffffffff83a47c40 ffff8801d7ee7500 ffffffff83aa4e00 ffffffff81452f16 0000000000000009 ffff8801d7ee74f0 ffffffff8142f541 0000000041b58ab3 ffffffff8418ab20 ffffffff8142f385 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] panic+0x1bc/0x3a8 kernel/panic.c:179 [] __warn+0x1c4/0x1e0 kernel/panic.c:542 [] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585 [] __alloc_pages_slowpath+0x1136/0x1d90 mm/page_alloc.c:3544 [] __alloc_pages_nodemask+0x33b/0x6b0 mm/page_alloc.c:3851 [] __alloc_pages include/linux/gfp.h:433 [inline] [] __alloc_pages_node include/linux/gfp.h:446 [inline] [] alloc_pages_node include/linux/gfp.h:460 [inline] [] kmalloc_order+0x2a/0x70 mm/slab_common.c:1043 [] kmalloc_order_trace+0x1f/0x190 mm/slab_common.c:1054 [] kmalloc_large include/linux/slab.h:422 [inline] [] __kmalloc+0x19d/0x310 mm/slub.c:3730 [] kmalloc include/linux/slab.h:495 [inline] [] relay_create_buf kernel/relay.c:172 [inline] [] relay_open_buf.part.15+0xc8/0xa20 kernel/relay.c:449 [] relay_open_buf kernel/relay.c:446 [inline] [] relay_open+0x4da/0x860 kernel/relay.c:596 [] do_blk_trace_setup+0x3e9/0x950 kernel/trace/blktrace.c:501 [] blk_trace_setup+0xe0/0x1a0 kernel/trace/blktrace.c:545 [] blk_trace_ioctl+0x1de/0x300 kernel/trace/blktrace.c:654 [] blkdev_ioctl+0xb00/0x1a60 block/ioctl.c:576 [] block_ioctl+0xde/0x120 fs/block_dev.c:1688 [] vfs_ioctl fs/ioctl.c:43 [inline] [] do_vfs_ioctl+0x1aa/0x1140 fs/ioctl.c:679 [] SYSC_ioctl fs/ioctl.c:694 [inline] [] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] entry_SYSCALL_64_fastpath+0x29/0xe8 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..