panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x8d32f9] goroutine 5861 [running]: panic({0x1040680, 0x1e6e780}) GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc00220d578 sp=0xc00220d4b8 pc=0x435837 runtime.panicmem(...) GOROOT/src/runtime/panic.go:220 runtime.sigpanic() GOROOT/src/runtime/signal_unix.go:818 +0x336 fp=0xc00220d5c8 sp=0xc00220d578 pc=0x44c236 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).IncUsers(0x140f6b0?) pkg/sentry/mm/lifecycle.go:246 +0x19 fp=0xc00220d5d0 sp=0xc00220d5c8 pc=0x8d32f9 gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).getMemoryManager(0xc000c5ac40) pkg/sentry/kernel/task_usermem.go:353 +0x8f fp=0xc00220d5f0 sp=0xc00220d5d0 pc=0xa2ff6f gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInBytes(0xc000c5ac40, 0x44d632?, {0xc000ca4944, 0x10, 0x90}) pkg/sentry/kernel/task_usermem.go:361 +0x7d fp=0xc00220d690 sp=0xc00220d5f0 pc=0xa3005d gvisor.dev/gvisor/pkg/sentry/kernel.makeIovec({0x1404e38?, 0xc000c5ac40?}, 0xc000ca4000, 0xc001200000?, {0xc000ca4944, 0xc00220d768?, 0x90}) pkg/sentry/kernel/task_usermem.go:261 +0x50 fp=0xc00220d6c8 sp=0xc00220d690 pc=0xa2f6f0 gvisor.dev/gvisor/pkg/sentry/kernel.copyInIovecs({0x1404e38, 0xc000c5ac40}, 0xc000ca4000, 0x20002d40, 0xa) pkg/sentry/kernel/task_usermem.go:231 +0x286 fp=0xc00220d768 sp=0xc00220d6c8 pc=0xa2f526 gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInIovecs(0x0?, 0x0?, 0xa08040?) pkg/sentry/kernel/task_usermem.go:387 +0x3a fp=0xc00220d7a0 sp=0xc00220d768 pc=0xa3057a gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.doProcessVMReadWrite(0xc0010e9500, 0xc000ca4000, 0xc001b49d40?, 0x0?, 0xc00220d948?, 0xaabfe5?) pkg/sentry/syscalls/linux/vfs2/mmap.go:166 +0x190 fp=0xc00220d898 sp=0xc00220d7a0 pc=0xcf2c70 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.processVMRW(0x55e5a8056f88?, {{0x1d5}, {0x20000500}, {0xa}, {0x20002d40}, {0xa}, {0x0}}, 0x1) pkg/sentry/syscalls/linux/vfs2/mmap.go:152 +0x1cf fp=0xc00220d908 sp=0xc00220d898 pc=0xcf29af gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.ProcessVMWritev(0xc000f3f500?, {{0x1d5}, {0x20000500}, {0xa}, {0x20002d40}, {0xa}, {0x0}}) pkg/sentry/syscalls/linux/vfs2/mmap.go:114 +0x45 fp=0xc00220d958 sp=0xc00220d908 pc=0xcf27a5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000f3f500, 0x137, {{0x1d5}, {0x20000500}, {0xa}, {0x20002d40}, {0xa}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc00220dc98 sp=0xc00220d958 pc=0xa2b86b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000f3f500, 0x85?, {{0x1d5}, {0x20000500}, {0xa}, {0x20002d40}, {0xa}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc00220dcf8 sp=0xc00220dc98 pc=0xa2ce54 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x8bfd4f?, 0x0?, {{0x1d5}, {0x20000500}, {0xa}, {0x20002d40}, {0xa}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc00220dd58 sp=0xc00220dcf8 pc=0xa2ca45 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001988d00?) pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc00220de50 sp=0xc00220dd58 pc=0xa2c70c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001914700?, 0xc000f3f500) pkg/sentry/kernel/task_run.go:253 +0x1125 fp=0xc00220df60 sp=0xc00220de50 pc=0xa1e4c5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000f3f500, 0x1ef) pkg/sentry/kernel/task_run.go:94 +0x1ec fp=0xc00220dfc0 sp=0xc00220df60 pc=0xa1cd0c gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:370 +0x2a fp=0xc00220dfe0 sp=0xc00220dfc0 pc=0xa29d0a runtime.goexit() src/runtime/asm_amd64.s:1571 +0x1 fp=0xc00220dfe8 sp=0xc00220dfe0 pc=0x469321 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:370 +0x105