SIGSEGV: segmentation violation
PC=0x9329b0 m=57 sigcode=128

DIAGNOSIS:


Error collecting stacks: failed to run ["/syzkaller/managers/kvm-direct-sandbox/current/image" "-root" "/syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root" "-watchdog-action=panic" "-network=none" "-debug" "-platform=kvm" "-file-access=exclusive" "-network=sandbox" "debug" "-stacks" "ci-gvisor-kvm-direct-sandbox-1"]: exit status 128
I1224 14:34:51.775902    4230 x:0] ***************************
I1224 14:34:51.775955    4230 x:0] Args: [/syzkaller/managers/kvm-direct-sandbox/current/image -root /syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root -watchdog-action=panic -network=none -debug -platform=kvm -file-access=exclusive -network=sandbox debug -stacks ci-gvisor-kvm-direct-sandbox-1]
I1224 14:34:51.775968    4230 x:0] Git Revision: 0df0df35fc4aa4d69dc01f7c7e2d9e0530a34db7
I1224 14:34:51.775973    4230 x:0] PID: 4230
I1224 14:34:51.775979    4230 x:0] UID: 0, GID: 0
I1224 14:34:51.775983    4230 x:0] Configuration:
I1224 14:34:51.775986    4230 x:0] 		RootDir: /syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root
I1224 14:34:51.775989    4230 x:0] 		Platform: kvm
I1224 14:34:51.775994    4230 x:0] 		FileAccess: exclusive, overlay: false
I1224 14:34:51.776003    4230 x:0] 		Network: sandbox, logging: false
I1224 14:34:51.776008    4230 x:0] 		Strace: false, max size: 1024, syscalls: []
I1224 14:34:51.776014    4230 x:0] ***************************
D1224 14:34:51.776092    4230 x:0] Load container "/syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root" "ci-gvisor-kvm-direct-sandbox-1"
D1224 14:34:51.776671    4230 x:0] Signal container "ci-gvisor-kvm-direct-sandbox-1": signal 0
D1224 14:34:51.776688    4230 x:0] Signal sandbox "ci-gvisor-kvm-direct-sandbox-1"
D1224 14:34:51.776693    4230 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-sandbox-1"
D1224 14:34:51.776816    4230 x:0] urpc: successfully marshalled 110 bytes.
I1224 14:34:52.649310    4230 x:0] Found sandbox "ci-gvisor-kvm-direct-sandbox-1", PID: 22691
I1224 14:34:52.649344    4230 x:0] Retrieving sandbox stacks
D1224 14:34:52.649349    4230 x:0] Stacks sandbox "ci-gvisor-kvm-direct-sandbox-1"
D1224 14:34:52.649354    4230 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-sandbox-1"
D1224 14:34:52.649403    4230 x:0] urpc: successfully marshalled 36 bytes.
W1224 14:34:52.667167    4230 x:0] FATAL ERROR: error retrieving stacks: err getting sandbox "ci-gvisor-kvm-direct-sandbox-1" stacks: urpc method "debug.Stacks" failed: connection reset by peer
error retrieving stacks: err getting sandbox "ci-gvisor-kvm-direct-sandbox-1" stacks: urpc method "debug.Stacks" failed: connection reset by peer
goroutine 641064 [syscall, locked to thread]:
gvisor.googlesource.com/gvisor/pkg/sentry/platform/kvm.(*vCPU).SwitchToUser(0xc000482000, 0xc102424000, 0xc10232f300, 0xc000631080, 0x100050001, 0xc0009668f8, 0x19df7500000002, 0xbf005982ed0a84b7, 0xc1023effd8)
	pkg/sentry/platform/kvm/machine_amd64.go:235 +0xbe fp=0xc001880da8 sp=0xc001880d38 pc=0x962c9e
gvisor.googlesource.com/gvisor/pkg/sentry/platform/kvm.(*context).Switch(0xc0009668f0, 0xd262c0, 0xc000556d80, 0xd34740, 0xc102424000, 0xc0ffffffff, 0x0, 0x0, 0xc001880f78, 0x7434a0)
	pkg/sentry/platform/kvm/context.go:71 +0x1fd fp=0xc001880e68 sp=0xc001880da8 pc=0x95825d
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc102334a80, 0xd199e0, 0x0)
	pkg/sentry/kernel/task_run.go:205 +0x348 fp=0xc001880f88 sp=0xc001880e68 pc=0x73bf08
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run(0xc102334a80, 0x8cd)
	pkg/sentry/kernel/task_run.go:91 +0x149 fp=0xc001880fd0 sp=0xc001880f88 pc=0x73b849
runtime.goexit()
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/linux_amd64_pure_stripped/stdlib%/src/runtime/asm_amd64.s:1333 +0x1 fp=0xc001880fd8 sp=0xc001880fd0 pc=0x457fa1
created by gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:279 +0xfe