panic: nested locking: kernel.taskSetRWMutex: goroutine 1 [running]: gvisor.dev/gvisor/pkg/log.Stacks(0x60) pkg/log/log.go:316 +0xd3 gvisor.dev/gvisor/pkg/sync/locking.AddGLock(0xc00046cd80, 0x0) pkg/sync/locking/lockdep.go:105 +0x499 gvisor.dev/gvisor/pkg/sentry/kernel.(*taskSetRWMutex).RLock(0xc00016a2a0) bazel-out/k8-fastbuild-ST-a4501ad48192/bin/pkg/sentry/kernel/taskset_mutex.go:46 +0x53 gvisor.dev/gvisor/pkg/sentry/kernel.(*PIDNamespace).ThreadGroupsAppend(0xc00016a240, {0xc000534020, 0x0, 0x1}) pkg/sentry/kernel/threads.go:296 +0x9d gvisor.dev/gvisor/pkg/sentry/kernel.(*kernelCPUClockTicker).NotifyTimer(0xc0004b2630, 0x408d45, {0x40, {0xc0002f0ed8}, 0x989680}) pkg/sentry/kernel/task_sched.go:365 +0x149 gvisor.dev/gvisor/pkg/sentry/kernel/time.(*Timer).SwapAnd(0xc00055e180, {0xa7, {0x470e65}, 0x5a4ab9}, 0x0) pkg/sentry/kernel/time/time.go:634 +0x32f gvisor.dev/gvisor/pkg/sentry/kernel/time.(*Timer).Swap(0xc0007280d0, {0x65, {0x449434}, 0x16b5220}) pkg/sentry/kernel/time/time.go:603 +0x65 gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).incRunningTasks(0xc000728000) pkg/sentry/kernel/kernel.go:1289 +0x285 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).accountTaskGoroutineLeave(0xc0003c2a80, 0x0) pkg/sentry/kernel/task_sched.go:142 +0xa5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start(0xc0003c2a80) pkg/sentry/kernel/task_start.go:362 +0x149 gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).Start(0xc000728000) pkg/sentry/kernel/kernel.go:1127 +0x452 gvisor.dev/gvisor/runsc/boot.(*Loader).run(0xc0001f6000) runsc/boot/loader.go:685 +0xae5 gvisor.dev/gvisor/runsc/boot.(*Loader).Run(0xc0001f6000) runsc/boot/loader.go:578 +0x31 gvisor.dev/gvisor/runsc/cmd.(*Boot).Execute(0xc0004cc000, {0xc000202dd0, 0xd}, 0xc0003e0fc0, {0xc00021cf80, 0x2, 0x53cd2a}) runsc/cmd/boot.go:326 +0x1445 github.com/google/subcommands.(*Commander).Execute(0xc00023e000, {0x1c45e50, 0xc000224008}, {0xc00021cf80, 0x2, 0x2}) external/com_github_google_subcommands/subcommands.go:200 +0x70a github.com/google/subcommands.Execute(...) external/com_github_google_subcommands/subcommands.go:481 gvisor.dev/gvisor/runsc/cli.Main({0x1c38460, 0x23}) runsc/cli/main.go:241 +0x2785 main.main() runsc/main.go:23 +0x3d