panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0xa8 pc=0x103a27a] goroutine 111214 [running]: panic(0x1276f00, 0x202acc0) GOROOT/src/runtime/panic.go:1065 +0x565 fp=0xc002fed9b8 sp=0xc002fed8f0 pc=0x437c65 runtime.panicmem() GOROOT/src/runtime/panic.go:212 +0x5b fp=0xc002fed9d8 sp=0xc002fed9b8 pc=0x435cbb runtime.sigpanic() GOROOT/src/runtime/signal_unix.go:734 +0x173 fp=0xc002feda10 sp=0xc002fed9d8 pc=0x44fa93 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*connection).callFuture(0xc0067e6f00, 0xc006bfca80, 0xc006f86140, 0x1d00000040, 0xe, 0x1) pkg/sentry/fsimpl/fuse/connection.go:318 +0x3a fp=0xc002feda70 sp=0xc002feda10 pc=0x103a27a gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*connection).Call(0xc0067e6f00, 0xc006bfca80, 0xc006f86140, 0x1, 0x1d, 0x1608ba8) pkg/sentry/fsimpl/fuse/connection.go:291 +0xf2 fp=0xc002fedae0 sp=0xc002feda70 pc=0x1039f92 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*connection).CallAsync(...) pkg/sentry/fsimpl/fuse/connection.go:237 gvisor.dev/gvisor/pkg/sentry/fsimpl/fuse.(*fileDescription).Release(0xc006a0e360, 0x160c7d8, 0xc006bfca80) pkg/sentry/fsimpl/fuse/file.go:103 +0x32d fp=0xc002fedb58 sp=0xc002fedae0 pc=0x103dfad gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DecRef.func1() pkg/sentry/vfs/file_description.go:207 +0x2db fp=0xc002fedc30 sp=0xc002fedb58 pc=0x7b59db gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescriptionRefs).DecRef(0xc006a0e360, 0xc002fedcb8) bazel-out/k8-fastbuild-ST-3ea255117c10/bin/pkg/sentry/vfs/file_description_refs.go:152 +0x82 fp=0xc002fedca8 sp=0xc002fedc30 pc=0x790d42 gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).DecRef(0xc006a0e360, 0x160c7d8, 0xc006bfca80) pkg/sentry/vfs/file_description.go:167 +0x73 fp=0xc002fedce8 sp=0xc002fedca8 pc=0x789ff3 gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).dropVFS2(0xc0067777c0, 0x160c7d8, 0xc006bfca80, 0xc006a0e360) pkg/sentry/kernel/fd_table.go:196 +0x88 fp=0xc002fedd50 sp=0xc002fedce8 pc=0xa3b0e8 gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).RemoveIf(0xc0067777c0, 0x160c7d8, 0xc006bfca80, 0x1493ef8) pkg/sentry/kernel/fd_table.go:845 +0x225 fp=0xc002fede08 sp=0xc002fedd50 pc=0xa3de65 gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).DecRef.func1() pkg/sentry/kernel/fd_table.go:214 +0x52 fp=0xc002fede38 sp=0xc002fede08 pc=0xaa7372 gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTableRefs).DecRef(0xc0067777c0, 0xc002fedec0) bazel-out/k8-fastbuild-ST-3ea255117c10/bin/pkg/sentry/kernel/fd_table_refs.go:152 +0x82 fp=0xc002fedeb0 sp=0xc002fede38 pc=0xa3e562 gvisor.dev/gvisor/pkg/sentry/kernel.(*FDTable).DecRef(0xc0067777c0, 0x160c7d8, 0xc006bfca80) pkg/sentry/kernel/fd_table.go:212 +0x73 fp=0xc002fedef0 sp=0xc002fedeb0 pc=0xa3b3d3 gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitMain).execute(0x0, 0xc006bfca80, 0x15debc0, 0x0) pkg/sentry/kernel/task_exit.go:279 +0x217 fp=0xc002fedf68 sp=0xc002fedef0 pc=0xa6ebf7 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc006bfca80, 0xb43) pkg/sentry/kernel/task_run.go:98 +0x1b9 fp=0xc002fedfd0 sp=0xc002fedf68 pc=0xa79c39 runtime.goexit() src/runtime/asm_amd64.s:1371 +0x1 fp=0xc002fedfd8 sp=0xc002fedfd0 pc=0x472861 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:396 +0x116