panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x8d32f9] goroutine 693756 [running]: panic({0x1040680, 0x1e6e7a0}) GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc00353f578 sp=0xc00353f4b8 pc=0x435837 runtime.panicmem(...) GOROOT/src/runtime/panic.go:220 runtime.sigpanic() GOROOT/src/runtime/signal_unix.go:818 +0x336 fp=0xc00353f5c8 sp=0xc00353f578 pc=0x44c236 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).IncUsers(0x140f5f0?) pkg/sentry/mm/lifecycle.go:246 +0x19 fp=0xc00353f5d0 sp=0xc00353f5c8 pc=0x8d32f9 gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).getMemoryManager(0xc001ec82c0) pkg/sentry/kernel/task_usermem.go:353 +0x8f fp=0xc00353f5f0 sp=0xc00353f5d0 pc=0xa2f84f gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInBytes(0xc001ec82c0, 0x44d632?, {0xc0b1f653c4, 0x10, 0x90}) pkg/sentry/kernel/task_usermem.go:361 +0x7d fp=0xc00353f690 sp=0xc00353f5f0 pc=0xa2f93d gvisor.dev/gvisor/pkg/sentry/kernel.makeIovec({0x1404d78?, 0xc001ec82c0?}, 0xc0b1f64a80, 0xc002b75920?, {0xc0b1f653c4, 0xc00353f768?, 0x90}) pkg/sentry/kernel/task_usermem.go:261 +0x50 fp=0xc00353f6c8 sp=0xc00353f690 pc=0xa2efd0 gvisor.dev/gvisor/pkg/sentry/kernel.copyInIovecs({0x1404d78, 0xc001ec82c0}, 0xc0b1f64a80, 0x20001280, 0x2) pkg/sentry/kernel/task_usermem.go:231 +0x286 fp=0xc00353f768 sp=0xc00353f6c8 pc=0xa2ee06 gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInIovecs(0x0?, 0x0?, 0xa07920?) pkg/sentry/kernel/task_usermem.go:387 +0x3a fp=0xc00353f7a0 sp=0xc00353f768 pc=0xa2fe5a gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.doProcessVMReadWrite(0xc0b1cef500, 0xc0b1f64a80, 0xc007b65980?, 0x0?, 0xc00353f948?, 0xaab8c5?) pkg/sentry/syscalls/linux/vfs2/mmap.go:166 +0x190 fp=0xc00353f898 sp=0xc00353f7a0 pc=0xcf25b0 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.processVMRW(0x55ede9bc1f88?, {{0x57a2}, {0x200001c0}, {0x2}, {0x20001280}, {0x2}, {0x0}}, 0x1) pkg/sentry/syscalls/linux/vfs2/mmap.go:152 +0x1cf fp=0xc00353f908 sp=0xc00353f898 pc=0xcf22ef gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.ProcessVMWritev(0xc0b2088000?, {{0x57a2}, {0x200001c0}, {0x2}, {0x20001280}, {0x2}, {0x0}}) pkg/sentry/syscalls/linux/vfs2/mmap.go:114 +0x45 fp=0xc00353f958 sp=0xc00353f908 pc=0xcf20e5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0b2088000, 0x137, {{0x57a2}, {0x200001c0}, {0x2}, {0x20001280}, {0x2}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc00353fc98 sp=0xc00353f958 pc=0xa2b14b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0b2088000, 0x85?, {{0x57a2}, {0x200001c0}, {0x2}, {0x20001280}, {0x2}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc00353fcf8 sp=0xc00353fc98 pc=0xa2c734 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00353fda0?, 0x9e1546?, {{0x57a2}, {0x200001c0}, {0x2}, {0x20001280}, {0x2}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc00353fd58 sp=0xc00353fcf8 pc=0xa2c325 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc095c51e10?) pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc00353fe50 sp=0xc00353fd58 pc=0xa2bfec gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0085de580?, 0xc0b2088000) pkg/sentry/kernel/task_run.go:253 +0x1125 fp=0xc00353ff60 sp=0xc00353fe50 pc=0xa1dda5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0b2088000, 0x57c8) pkg/sentry/kernel/task_run.go:94 +0x1ec fp=0xc00353ffc0 sp=0xc00353ff60 pc=0xa1c5ec gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:370 +0x2a fp=0xc00353ffe0 sp=0xc00353ffc0 pc=0xa295ea runtime.goexit() src/runtime/asm_amd64.s:1571 +0x1 fp=0xc00353ffe8 sp=0xc00353ffe0 pc=0x469321 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:370 +0x105