WARNING: CPU: 0 PID: 22355 at mm/page_alloc.c:3926 __alloc_pages_slowpath+0x1ffc/0x2d00 mm/page_alloc.c:3936 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 22355 Comm: syz-executor0 Not tainted 4.15.0-rc6+ #246 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 panic+0x1e4/0x41c kernel/panic.c:183 __warn+0x1dc/0x200 kernel/panic.c:547 report_bug+0x211/0x2d0 lib/bug.c:184 fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:178 fixup_bug arch/x86/kernel/traps.c:247 [inline] do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315 invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:1079 RIP: 0010:__alloc_pages_slowpath+0x1ffc/0x2d00 mm/page_alloc.c:3936 RSP: 0018:ffff8801d099f418 EFLAGS: 00010246 RAX: ffffed003a133ea4 RBX: 1ffff1003a133ea4 RCX: 0000000000000000 RDX: ffff8801d099fa70 RSI: 0000000000000034 RDI: 0000000000000000 RBP: ffff8801d099f908 R08: 0000000000000000 R09: fffffffffff00f8a R10: 0000000000000033 R11: 0000000000000034 R12: 0000000000000000 R13: ffff8801d099fad0 R14: 00000000014280c2 R15: ffff8801d099fa70 __alloc_pages_nodemask+0x9fb/0xd80 mm/page_alloc.c:4252 alloc_pages_current+0xb6/0x1e0 mm/mempolicy.c:2036 alloc_pages include/linux/gfp.h:492 [inline] ion_system_contig_heap_allocate+0x40/0x2c0 drivers/staging/android/ion/ion_system_heap.c:374 ion_buffer_create drivers/staging/android/ion/ion.c:93 [inline] ion_alloc+0x2c1/0x9e0 drivers/staging/android/ion/ion.c:420 ion_ioctl+0x26d/0x380 drivers/staging/android/ion/ion-ioctl.c:84 vfs_ioctl fs/ioctl.c:46 [inline] do_vfs_ioctl+0x1b1/0x1520 fs/ioctl.c:686 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 entry_SYSCALL_64_fastpath+0x23/0x9a RIP: 0033:0x452ac9 RSP: 002b:00007fdace101c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fdace102700 RCX: 0000000000452ac9 RDX: 0000000020f06000 RSI: 00000000c0184900 RDI: 0000000000000013 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000000 R13: 0000000000a2f7ef R14: 00007fdace1029c0 R15: 0000000000000000 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..