panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x8d32f9] goroutine 296632 [running]: panic({0x1040680, 0x1e6e7a0}) GOROOT/src/runtime/panic.go:941 +0x397 fp=0xc000e47578 sp=0xc000e474b8 pc=0x435837 runtime.panicmem(...) GOROOT/src/runtime/panic.go:220 runtime.sigpanic() GOROOT/src/runtime/signal_unix.go:818 +0x336 fp=0xc000e475c8 sp=0xc000e47578 pc=0x44c236 gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).IncUsers(0xc000e47618?) pkg/sentry/mm/lifecycle.go:246 +0x19 fp=0xc000e475d0 sp=0xc000e475c8 pc=0x8d32f9 gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).getMemoryManager(0xc0043461a0) pkg/sentry/kernel/task_usermem.go:353 +0x8f fp=0xc000e475f0 sp=0xc000e475d0 pc=0xa2f84f gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInBytes(0xc0043461a0, 0x44d632?, {0xc0aa488944, 0x10, 0x90}) pkg/sentry/kernel/task_usermem.go:361 +0x7d fp=0xc000e47690 sp=0xc000e475f0 pc=0xa2f93d gvisor.dev/gvisor/pkg/sentry/kernel.makeIovec({0x1404d78?, 0xc0043461a0?}, 0xc0aa488000, 0xc004492000?, {0xc0aa488944, 0xc000e47768?, 0x90}) pkg/sentry/kernel/task_usermem.go:261 +0x50 fp=0xc000e476c8 sp=0xc000e47690 pc=0xa2efd0 gvisor.dev/gvisor/pkg/sentry/kernel.copyInIovecs({0x1404d78, 0xc0043461a0}, 0xc0aa488000, 0x20002640, 0x2) pkg/sentry/kernel/task_usermem.go:231 +0x286 fp=0xc000e47768 sp=0xc000e476c8 pc=0xa2ee06 gvisor.dev/gvisor/pkg/sentry/kernel.(*taskCopyContext).CopyInIovecs(0x0?, 0x0?, 0xa07920?) pkg/sentry/kernel/task_usermem.go:387 +0x3a fp=0xc000e477a0 sp=0xc000e47768 pc=0xa2fe5a gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.doProcessVMReadWrite(0xc002716a80, 0xc0aa488000, 0xc0030d2060?, 0x0?, 0xc000e47948?, 0xaab8c5?) pkg/sentry/syscalls/linux/vfs2/mmap.go:166 +0x190 fp=0xc000e47898 sp=0xc000e477a0 pc=0xcf25b0 gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.processVMRW(0x55780f4e4f88?, {{0x28b7}, {0x20001380}, {0x1}, {0x20002640}, {0x2}, {0x0}}, 0x1) pkg/sentry/syscalls/linux/vfs2/mmap.go:152 +0x1cf fp=0xc000e47908 sp=0xc000e47898 pc=0xcf22ef gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.ProcessVMWritev(0xc0a0a5a000?, {{0x28b7}, {0x20001380}, {0x1}, {0x20002640}, {0x2}, {0x0}}) pkg/sentry/syscalls/linux/vfs2/mmap.go:114 +0x45 fp=0xc000e47958 sp=0xc000e47908 pc=0xcf20e5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0a0a5a000, 0x137, {{0x28b7}, {0x20001380}, {0x1}, {0x20002640}, {0x2}, {0x0}}) pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc000e47c98 sp=0xc000e47958 pc=0xa2b14b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0a0a5a000, 0xc003533520?, {{0x28b7}, {0x20001380}, {0x1}, {0x20002640}, {0x2}, {0x0}}) pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc000e47cf8 sp=0xc000e47c98 pc=0xa2c734 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0003be400?, 0xc000e47e40?, {{0x28b7}, {0x20001380}, {0x1}, {0x20002640}, {0x2}, {0x0}}) pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc000e47d58 sp=0xc000e47cf8 pc=0xa2c325 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc09c083c30?) pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc000e47e50 sp=0xc000e47d58 pc=0xa2bfec gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001835480?, 0xc0a0a5a000) pkg/sentry/kernel/task_run.go:253 +0x1125 fp=0xc000e47f60 sp=0xc000e47e50 pc=0xa1dda5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0a0a5a000, 0x28f2) pkg/sentry/kernel/task_run.go:94 +0x1ec fp=0xc000e47fc0 sp=0xc000e47f60 pc=0xa1c5ec gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1() pkg/sentry/kernel/task_start.go:370 +0x2a fp=0xc000e47fe0 sp=0xc000e47fc0 pc=0xa295ea runtime.goexit() src/runtime/asm_amd64.s:1571 +0x1 fp=0xc000e47fe8 sp=0xc000e47fe0 pc=0x469321 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:370 +0x105