------------[ cut here ]------------
memtype_reserve failed: [mem 0xffffffffff000-0x00001fff], req write-back
WARNING: CPU: 0 PID: 27774 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: 0 PID: 27774 Comm: syz-executor.0 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 ae ae 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 79 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:ffffc900175b77a0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000002000 RCX: 0000000000000000
RDX: 00000000000133cb RSI: ffffffff815ce751 RDI: fffff52002eb6ee6
RBP: ffffffff8828fe00 R08: ffff88809aefa480 R09: ffffed1015cc66a9
R10: ffff8880ae633547 R11: ffffed1015cc66a8 R12: 000ffffffffff000
R13: 1ffff92002eb6efa 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_64+0xf6/0x7d0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45ca29
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:00007f6d858fac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00000000004f5dc0 RCX: 000000000045ca29
RDX: 0000000000000001 RSI: 0000000000003000 RDI: 0000000020000000
RBP: 000000000078bfa0 R08: 0000000000000004 R09: 0000000000000000
R10: 0000000000010012 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000000000000073e R14: 00000000004ca1f5 R15: 00007f6d858fb6d4
Kernel Offset: disabled
Rebooting in 86400 seconds..