------------[ 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+0x1b24/0x24a0 virt/kvm/pfncache.c:267, CPU#3: syz.7.4466/5766
Modules linked in:
CPU: 3 UID: 0 PID: 5766 Comm: syz.7.4466 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+0x1b24/0x24a0 virt/kvm/pfncache.c:267
Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 6e 09 00 00 48 8b 04 24 31 db 48 8b a8 10 01 00 00 e9 f2 ef ff ff e8 cd fc 83 00 90 <0f> 0b 90 e9 92 f7 ff ff e8 bf fc 83 00 48 85 db 0f 84 5a ec ff ff
RSP: 0018:ffffc9000dfa7258 EFLAGS: 00010283
RAX: 00000000000006f2 RBX: ffffffffffffffff RCX: ffffc90026c19000
RDX: 0000000000080000 RSI: ffffffff818302b3 RDI: ffff888029868000
RBP: ffffffffffffff01 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000000 R12: ffff888000000000
R13: ffff888000000001 R14: ffff888000000000 R15: ffffc9000dfa7470
FS:  00007f6b63a736c0(0000) GS:ffff8880d68d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6b63a72ff8 CR3: 0000000029463000 CR4: 0000000000352ef0
DR0: fffffffffffffffd DR1: 0000400000000006 DR2: 0000000000000083
DR3: ffffffffe7ffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kvm_gpc_refresh+0xc9/0x190 virt/kvm/pfncache.c:382
 kvm_xen_set_evtchn.part.0+0x168/0x230 arch/x86/kvm/xen.c:1943
 kvm_xen_set_evtchn arch/x86/kvm/xen.c:2044 [inline]
 kvm_xen_hvm_evtchn_send+0x22f/0x290 arch/x86/kvm/xen.c:2034
 kvm_arch_vm_ioctl+0x13ac/0x18d0 arch/x86/kvm/x86.c:7490
 kvm_vm_ioctl+0x1564/0x4020 virt/kvm/kvm_main.c:5402
 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+0xc9/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6b62b9aeb9
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:00007f6b63a73028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6b62e15fa0 RCX: 00007f6b62b9aeb9
RDX: 0000200000000980 RSI: 00000000400caed0 RDI: 0000000000000004
RBP: 00007f6b62c08c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6b62e16038 R14: 00007f6b62e15fa0 R15: 00007ffc415d0b68
 </TASK>