loop0: detected capacity change from 0 to 2048
 loop0: p2 p3 < > p4 < p5 >
loop0: partition table partially beyond EOD, truncated
loop0: p3 start 4225 is beyond EOD, truncated
befs: block size(32768) > page size(4096) not supported by filesystem
befs: (loop0p4): No write support. Marking filesystem read-only
befs: block size(32768) > page size(4096) not supported by filesystem
befs: (loop0p4): unable to set blocksize
------------[ cut here ]------------
kvm_is_error_gpa(gpa) == kvm_is_error_hva(uhva)
WARNING: arch/x86/kvm/../../../virt/kvm/pfncache.c:267 at __kvm_gpc_refresh+0x154c/0x1750 virt/kvm/pfncache.c:267, CPU#0: syz.0.0/5339
Modules linked in:
CPU: 0 UID: 0 PID: 5339 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__kvm_gpc_refresh+0x154c/0x1750 virt/kvm/pfncache.c:267
Code: c6 05 6f 72 d9 0e 01 48 c7 c7 98 28 f9 8d be 3c 04 00 00 48 c7 c2 00 3e c2 8b e8 8f 17 61 00 e9 40 ee ff ff e8 15 ef 84 00 90 <0f> 0b 90 bb ea ff ff ff 49 bf 00 00 00 00 00 fc ff df e9 fa f5 ff
RSP: 0018:ffffc9000e5971c0 EFLAGS: 00010283
RAX: ffffffff8140d7fb RBX: ffff888000000000 RCX: 0000000000100000
RDX: ffffc9000ef5a000 RSI: 000000000000035c RDI: 000000000000035d
RBP: ffffc9000e597348 R08: ffffffff90305bf7 R09: 1ffffffff2060b7e
R10: dffffc0000000000 R11: fffffbfff2060b7f R12: 1ffff92001cb2e4c
R13: ffff888042aa92e0 R14: ffff888000000000 R15: ffffffffffffff01
FS:  00007fc1861f86c0(0000) GS:ffff88808c894000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc1861f7ff8 CR3: 0000000012824000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 kvm_gpc_refresh+0xe1/0x120 virt/kvm/pfncache.c:382
 kvm_xen_set_evtchn+0x163/0x230 arch/x86/kvm/xen.c:1942
 kvm_xen_hvm_evtchn_send+0x120/0x1e0 arch/x86/kvm/xen.c:2033
 kvm_arch_vm_ioctl+0xfb1/0x1a10 arch/x86/kvm/x86.c:7542
 kvm_vm_ioctl+0x905/0xd50 virt/kvm/kvm_main.c:5381
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc18539ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc1861f7fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc185615fa0 RCX: 00007fc18539ce59
RDX: 0000200000000980 RSI: 00000000400caed0 RDI: 0000000000000008
RBP: 00007fc185432d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc185616038 R14: 00007fc185615fa0 R15: 00007fffa5715068
 </TASK>