panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xbda26e] goroutine 16890 [running]: panic({0x182c9a0, 0x2590c50}) GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc000c0ef70 sp=0xc000c0eeb0 pc=0x438317 runtime.panicmem(...) GOROOT/src/runtime/panic.go:220 runtime.sigpanic() GOROOT/src/runtime/signal_unix.go:818 +0x336 fp=0xc000c0efc0 sp=0xc000c0ef70 pc=0x450556 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).IncUsers(0x0) pkg/sentry/mm/lifecycle.go:246 +0x4e fp=0xc000c0eff0 sp=0xc000c0efc0 pc=0xbda26e gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).getMemoryManager(0xc003a27d40) pkg/sentry/kernel/task_usermem.go:353 +0xe6 fp=0xc000c0f030 sp=0xc000c0eff0 pc=0xdfd886 gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInBytes(0xc003a27d40, 0x2613088?, {0xc0038f3e44, 0x10, 0x90}) pkg/sentry/kernel/task_usermem.go:361 +0x88 fp=0xc000c0f138 sp=0xc000c0f030 pc=0xdfd9a8 gvisor.dev/gvisor/pkg/sentry/kernel.makeIovec({0x1bf3d38, 0xc003a27d40}, 0xc0038f3500, 0x0?, {0xc0038f3e44, 0x10, 0x90}) pkg/sentry/kernel/task_usermem.go:261 +0xb5 fp=0xc000c0f1e8 sp=0xc000c0f138 pc=0xdfc915 gvisor.dev/gvisor/pkg/sentry/kernel.copyInIovecs({0x1bf3d38, 0xc003a27d40}, 0xc003a27d40?, 0x20000a00, 0x4) pkg/sentry/kernel/task_usermem.go:231 +0x3aa fp=0xc000c0f2e8 sp=0xc000c0f1e8 pc=0xdfc4ca gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInIovecs(0xc003a27d40, 0xc00034c070?, 0x40c2?) pkg/sentry/kernel/task_usermem.go:387 +0x74 fp=0xc000c0f350 sp=0xc000c0f2e8 pc=0xdfe1f4 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.doProcessVMReadWrite(0xc003870a80, 0xc0038f3500, 0xbd15e?, 0xbd15e?, 0x0?, 0x0?) pkg/sentry/syscalls/linux/vfs2/mmap.go:166 +0x334 fp=0xc000c0f488 sp=0xc000c0f350 pc=0x12759f4 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.processVMRW(0xc003870a80, {{0x42b}, {0x20000700}, {0x3}, {0x20000a00}, {0x4}, {0x0}}, 0x1) pkg/sentry/syscalls/linux/vfs2/mmap.go:152 +0x2ff fp=0xc000c0f538 sp=0xc000c0f488 pc=0x127541f gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.ProcessVMWritev(0x3e?, {{0x42b}, {0x20000700}, {0x3}, {0x20000a00}, {0x4}, {0x0}}) pkg/sentry/syscalls/linux/vfs2/mmap.go:114 +0x6a fp=0xc000c0f5b0 sp=0xc000c0f538 pc=0x12750ca gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc003870a80, 0x137, {{0x42b}, {0x20000700}, {0x3}, {0x20000a00}, {0x4}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0xab8 fp=0xc000c0f9f8 sp=0xc000c0f5b0 pc=0xdf6418 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc003870a80, 0x1?, {{0x42b}, {0x20000700}, {0x3}, {0x20000a00}, {0x4}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x8e fp=0xc000c0fa98 sp=0xc000c0f9f8 pc=0xdf85ae gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00257c0f0?, 0x46fb2c?, {{0x42b}, {0x20000700}, {0x3}, {0x20000a00}, {0x4}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0xc5 fp=0xc000c0fb10 sp=0xc000c0fa98 pc=0xdf7e85 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc003870a80) pkg/sentry/kernel/task_syscall.go:257 +0x53b fp=0xc000c0fc38 sp=0xc000c0fb10 pc=0xdf797b gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc003870a80?, 0xc003870a80) pkg/sentry/kernel/task_run.go:253 +0x1e2b fp=0xc000c0fec0 sp=0xc000c0fc38 pc=0xde0bab gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc003870a80, 0x433) pkg/sentry/kernel/task_run.go:94 +0x2c2 fp=0xc000c0ffb0 sp=0xc000c0fec0 pc=0xdde3c2 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:370 +0x48 fp=0xc000c0ffe0 sp=0xc000c0ffb0 pc=0xdf3b28 runtime.goexit() src/runtime/asm_amd64.s:1571 +0x1 fp=0xc000c0ffe8 sp=0xc000c0ffe0 pc=0x46df01 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:370 +0x1d0