------------[ 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+0x1a98/0x22d0 virt/kvm/pfncache.c:267, CPU#1: syz.8.7273/27810
Modules linked in:
CPU: 1 UID: 0 PID: 27810 Comm: syz.8.7273 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
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+0x1a98/0x22d0 virt/kvm/pfncache.c:267
Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 31 07 00 00 48 8b 04 24 31 db 48 8b a8 08 01 00 00 e9 2b f6 ff ff e8 19 a9 86 00 90 <0f> 0b 90 e9 55 f8 ff ff e8 0b a9 86 00 48 c7 c6 40 b9 a2 8b 48 89
RSP: 0018:ffffc90007577248 EFLAGS: 00010287
RAX: 00000000000006e8 RBX: ffffffffffffffff RCX: ffffc900267e5000
RDX: 0000000000080000 RSI: ffffffff8182d607 RDI: ffff88804b29a540
RBP: ffff888000000000 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000001001
R13: ffff888000000001 R14: ffff888000000000 R15: ffffc90007577468
FS:  00007f6ec083d6c0(0000) GS:ffff8880d63ef000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa5c6d57f70 CR3: 000000004b9e0000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 00000000fda3b69a DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kvm_gpc_refresh+0xc9/0x160 virt/kvm/pfncache.c:382
 kvm_xen_set_evtchn.part.0+0x168/0x230 arch/x86/kvm/xen.c:1945
 kvm_xen_set_evtchn arch/x86/kvm/xen.c:2046 [inline]
 kvm_xen_hvm_evtchn_send+0x22f/0x290 arch/x86/kvm/xen.c:2036
 kvm_arch_vm_ioctl+0x13ac/0x18d0 arch/x86/kvm/x86.c:7523
 kvm_vm_ioctl+0x1564/0x4030 virt/kvm/kvm_main.c:5381
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6ebf99ce59
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:00007f6ec083d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6ebfc15fa0 RCX: 00007f6ebf99ce59
RDX: 0000200000000400 RSI: 00000000400caed0 RDI: 0000000000000006
RBP: 00007f6ebfa32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6ebfc16038 R14: 00007f6ebfc15fa0 R15: 00007ffe01c7a678
 </TASK>