fatal error: 19:21:17 executing program 2:
pipe(&(0x7f00000002c0)={<r0=>0xffffffffffffffff, <r1=>0xffffffffffffffff})
fcntl$setstatus(r1, 0x4, 0x2000)
close(r0)

DIAGNOSIS:
I0212 19:21:17.776143   44261 log.go:209] ***************************
I0212 19:21:17.776245   44261 log.go:209] Args: [/syzkaller/managers/kvm-proxy-overlay-sandbox/current/image -root /syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root -watchdog-action=panic -network=none -debug -alsologtostderr -platform=kvm -file-access=exclusive -overlay -network=sandbox debug -stacks --ps ci-gvisor-kvm-proxy-overlay-sandbox-0]
I0212 19:21:17.776297   44261 log.go:209] Version release-20200127.0-127-g0dd9ee0d1e08
I0212 19:21:17.776311   44261 log.go:209] PID: 44261
I0212 19:21:17.776324   44261 log.go:209] UID: 0, GID: 0
I0212 19:21:17.776338   44261 log.go:209] Configuration:
I0212 19:21:17.776348   44261 log.go:209] 		RootDir: /syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root
I0212 19:21:17.776375   44261 log.go:209] 		Platform: kvm
I0212 19:21:17.776405   44261 log.go:209] 		FileAccess: exclusive, overlay: true
I0212 19:21:17.776434   44261 log.go:209] 		Network: sandbox, logging: false
I0212 19:21:17.776456   44261 log.go:209] 		Strace: false, max size: 1024, syscalls: []
I0212 19:21:17.776474   44261 log.go:209] ***************************
D0212 19:21:17.781304   44261 log.go:202] Load container "/syzkaller/managers/kvm-proxy-overlay-sandbox/workdir/gvisor_root" "ci-gvisor-kvm-proxy-overlay-sandbox-0"
D0212 19:21:17.808855   44261 log.go:202] Signal container "ci-gvisor-kvm-proxy-overlay-sandbox-0": signal 0
D0212 19:21:17.808937   44261 log.go:202] Signal sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-0"
D0212 19:21:17.808979   44261 log.go:202] Connecting to sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-0"
D0212 19:21:17.811564   44261 log.go:202] urpc: successfully marshalled 117 bytes.
D0212 19:21:17.811657   44261 log.go:202] urpc: unmarshal success.
I0212 19:21:17.811781   44261 log.go:209] Found sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-0", PID: 32971
I0212 19:21:17.811808   44261 log.go:209] Retrieving sandbox stacks
D0212 19:21:17.812166   44261 log.go:202] Stacks sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-0"
D0212 19:21:17.812248   44261 log.go:202] Connecting to sandbox "ci-gvisor-kvm-proxy-overlay-sandbox-0"
D0212 19:21:17.812610   44261 log.go:202] urpc: successfully marshalled 36 bytes.
D0212 19:21:17.899971   44261 log.go:202] urpc: unmarshal success.
I0212 19:21:17.900321   44261 log.go:209]      *** Stack dump ***
goroutine 596207 [running]:
gvisor.dev/gvisor/pkg/log.Stacks(0xc002456201, 0x1519330, 0x16, 0xc000f63880)
	pkg/log/log.go:284 +0xa5
gvisor.dev/gvisor/runsc/boot.(*debug).Stacks(0x1519330, 0x1519330, 0xc0002da7e0, 0x0, 0x0)
	runsc/boot/debug.go:26 +0x26
reflect.Value.call(0xc0001d0f60, 0xc00000eb70, 0x13, 0xdc7d35, 0x4, 0xc00088ce88, 0x3, 0x3, 0xc00088ccc8, 0x4bcebd, ...)
	GOROOT/src/reflect/value.go:460 +0x5f6
reflect.Value.Call(0xc0001d0f60, 0xc00000eb70, 0x13, 0xc00088ce88, 0x3, 0x3, 0x0, 0x1519330, 0x16)
	GOROOT/src/reflect/value.go:321 +0xb4
gvisor.dev/gvisor/pkg/urpc.(*Server).handleOne(0xc0002c3a40, 0xc002d60ff0, 0x0, 0x0)
	pkg/urpc/urpc.go:325 +0x56d
gvisor.dev/gvisor/pkg/urpc.(*Server).handleRegistered(0xc0002c3a40, 0xc002d60ff0, 0xc001eb9740, 0x83c5a8)
	pkg/urpc/urpc.go:420 +0x35
gvisor.dev/gvisor/pkg/urpc.(*Server).StartHandling.func1(0xc0002c3a40, 0xc002d60ff0)
	pkg/urpc/urpc.go:440 +0x73
created by gvisor.dev/gvisor/pkg/urpc.(*Server).StartHandling
	pkg/urpc/urpc.go:438 +0x61