memtype_reserve failed: [mem 0xffffffffff000-0x003fefff], req write-back WARNING: CPU: 1 PID: 32648 at arch/x86/mm/pat/memtype.c:589 memtype_reserve+0x69f/0x820 arch/x86/mm/pat/memtype.c:589 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 32648 Comm: syz-executor.5 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+0x188/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x35 kernel/panic.c:582 report_bug+0x27b/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:175 [inline] fixup_bug arch/x86/kernel/traps.c:170 [inline] do_error_trap+0x12b/0x220 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+0x69f/0x820 arch/x86/mm/pat/memtype.c:589 Code: 48 8b 2c ed 80 ff 28 88 e8 9e ad 3e 00 48 8d 4b ff 49 89 e8 4c 89 e2 48 c7 c6 e0 ff 28 88 48 c7 c7 40 f8 28 88 e8 69 e8 0f 00 <0f> 0b 41 bf ea ff ff ff e9 03 fc ff ff 41 bf ea ff ff ff e9 f8 fb RSP: 0018:ffffc90007e4f790 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 00000000003ff000 RCX: 0000000000000000 RDX: 000000000001716b RSI: ffffffff815ce641 RDI: fffff52000fc9ee4 RBP: ffffffff8828fe00 R08: ffff888038e08040 R09: ffffed1015ce66a9 R10: ffff8880ae733547 R11: ffffed1015ce66a8 R12: 000ffffffffff000 R13: 1ffff92000fc9ef8 R14: dffffc0000000000 R15: 0000000000000000 reserve_pfn_range+0x173/0x470 arch/x86/mm/pat/memtype.c:941 track_pfn_remap+0x18b/0x280 arch/x86/mm/pat/memtype.c:1033 remap_pfn_range+0x202/0xbf0 mm/memory.c:2130 dma_direct_mmap+0x197/0x260 kernel/dma/direct.c:453 dma_mmap_attrs+0xfe/0x150 kernel/dma/mapping.c:237 usbdev_mmap+0x3ae/0x730 drivers/usb/core/devio.c:254 call_mmap include/linux/fs.h:1912 [inline] mmap_region+0xafb/0x1540 mm/mmap.c:1772 do_mmap+0x849/0x1160 mm/mmap.c:1545 do_mmap_pgoff include/linux/mm.h:2553 [inline] vm_mmap_pgoff+0x197/0x200 mm/util.c:506 ksys_mmap_pgoff+0x457/0x5b0 mm/mmap.c:1595 do_syscall_32_irqs_on arch/x86/entry/common.c:337 [inline] do_fast_syscall_32+0x270/0xe90 arch/x86/entry/common.c:396 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 Kernel Offset: disabled Rebooting in 86400 seconds..