------------[ cut here ]------------ memtype_reserve failed: [mem 0xffffffffff000-0x00008fff], req write-back WARNING: CPU: 0 PID: 20396 at arch/x86/mm/pat/memtype.c:590 memtype_reserve+0x171/0xbd0 arch/x86/mm/pat/memtype.c:589 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 20396 Comm: syz-executor.3 Not tainted 5.7.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1e9/0x30e lib/dump_stack.c:118 panic+0x264/0x7a0 kernel/panic.c:221 __warn+0x209/0x210 kernel/panic.c:582 report_bug+0x1ac/0x2d0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:175 [inline] do_error_trap+0xca/0x1c0 arch/x86/kernel/traps.c:267 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:memtype_reserve+0x171/0xbd0 arch/x86/mm/pat/memtype.c:589 Code: ed eb 2e e8 11 f3 3e 00 49 c7 c0 15 78 e6 88 48 c7 c7 78 75 e6 88 48 c7 c6 a2 75 e6 88 48 89 da 4c 89 f1 31 c0 e8 af 08 11 00 <0f> 0b bd ea ff ff ff 65 48 8b 04 25 28 00 00 00 48 3b 44 24 30 0f RSP: 0018:ffffc90016217970 EFLAGS: 00010246 RAX: 8758c50d3e400900 RBX: 000ffffffffff000 RCX: 0000000000040000 RDX: ffffc9000f6ab000 RSI: 00000000000168ed RDI: 00000000000168ee RBP: ffffffff8862b8d8 R08: ffffffff815cd079 R09: ffffed1015d06660 R10: ffffed1015d06660 R11: 0000000000000000 R12: 0000000000009000 R13: 1ffff92002c42f46 R14: 0000000000008fff R15: ffffc90016217a24 reserve_pfn_range+0x278/0xd30 arch/x86/mm/pat/memtype.c:941 track_pfn_remap+0xdb/0x870 arch/x86/mm/pat/memtype.c:1033 remap_pfn_range+0x1c9/0xcc0 mm/memory.c:2130 usbdev_mmap+0x394/0x5e0 drivers/usb/core/devio.c:254 call_mmap include/linux/fs.h:1912 [inline] mmap_region+0x139a/0x1b80 mm/mmap.c:1772 do_mmap+0xad3/0x1150 mm/mmap.c:1545 do_mmap_pgoff include/linux/mm.h:2553 [inline] vm_mmap_pgoff+0x147/0x1e0 mm/util.c:506 ksys_mmap_pgoff+0x484/0x570 mm/mmap.c:1595 do_syscall_64+0xf3/0x1b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45c829 Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb17942dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00000000004f5b60 RCX: 000000000045c829 RDX: 000000000300000c RSI: 000000000000a000 RDI: 0000000020001000 RBP: 000000000078bf00 R08: 0000000000000003 R09: 0000000000000000 R10: 0000000000000011 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000073e R14: 00000000004c9ff5 R15: 00007fb17942e6d4 Kernel Offset: disabled Rebooting in 86400 seconds..