fatal error: fault [signal SIGBUS: bus error code=0x2 addr=0x7fcd18830020 pc=0x456bca] goroutine 585 [running]: runtime.throw(0xba2b04, 0x5) GOROOT/src/runtime/panic.go:616 +0x81 fp=0xc420cad070 sp=0xc420cad050 pc=0x429441 runtime.sigpanic() GOROOT/src/runtime/signal_unix.go:385 +0x273 fp=0xc420cad0c0 sp=0xc420cad070 pc=0x43e6b3 runtime.memmove(0x7fcd18830000, 0x7fcd19c24000, 0x5a000) bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/linux_amd64_pure_stripped/stdlib%/src/runtime/memmove_amd64.s:362 +0x42a fp=0xc420cad0c8 sp=0xc420cad0c0 pc=0x456bca gvisor.googlesource.com/gvisor/pkg/sentry/safemem.Copy(0x7fcd18830000, 0x5a000, 0x0, 0x7fcd19c24000, 0x5a000, 0x5a000, 0x0, 0xc420cad200, 0x428854) pkg/sentry/safemem/block_unsafe.go:199 +0x33d fp=0xc420cad178 sp=0xc420cad0c8 pc=0x5c8ecd gvisor.googlesource.com/gvisor/pkg/sentry/safemem.CopySeq(0x7fcd18830000, 0xffffffffffffffff, 0x0, 0x5a000, 0x7fcd19c24000, 0xffffffffffffffff, 0x0, 0x5a000, 0x0, 0x0, ...) pkg/sentry/safemem/seq_unsafe.go:276 +0x25d fp=0xc420cad248 sp=0xc420cad178 pc=0x5cbd7d gvisor.googlesource.com/gvisor/pkg/sentry/safemem.(*BlockSeqReader).ReadToBlocks(0xc4207bb160, 0x7fcd18830000, 0xffffffffffffffff, 0x0, 0x5a000, 0xc420cad390, 0x40fb69, 0xc4207bb160) pkg/sentry/safemem/io.go:86 +0x84 fp=0xc420cad2c8 sp=0xc420cad248 pc=0x5c95b4 gvisor.googlesource.com/gvisor/pkg/sentry/safemem.ReadFullToBlocks(0xc54320, 0xc4207bb160, 0x7fcd18830000, 0xffffffffffffffff, 0x0, 0x5a000, 0x0, 0x5a000, 0x0) pkg/sentry/safemem/io.go:54 +0xe4 fp=0xc420cad348 sp=0xc420cad2c8 pc=0x5c94c4 gvisor.googlesource.com/gvisor/pkg/sentry/platform.AllocateAndFill(0xc63ac0, 0xc420284000, 0x5a000, 0x1, 0xc54320, 0xc4207bb160, 0xffffffffffffffff, 0x0, 0x5a000, 0xc4202cdf68) pkg/sentry/platform/platform.go:426 +0x114 fp=0xc420cad3d0 sp=0xc420cad348 pc=0x5ea724 gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).breakCopyOnWriteLocked(0xc4202cd900, 0xc4202cdf68, 0x4, 0xa37000, 0xa38000, 0xa37000, 0xa38000, 0xc4202cdf68, 0x4, 0xc4202cdf68) pkg/sentry/mm/pma.go:433 +0x34d fp=0xc420cad4f0 sp=0xc420cad3d0 pc=0x688bad gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsLocked(0xc4202cd900, 0xc61240, 0xc420869b00, 0xc4202cd970, 0x5, 0xa37000, 0xa38000, 0x1, 0xc4202cd970, 0x6, ...) pkg/sentry/mm/pma.go:142 +0x2a2 fp=0xc420cad5d0 sp=0xc420cad4f0 pc=0x687202 gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc4202cd900, 0xc61240, 0xc420869b00, 0xa37c10, 0xa37c14, 0xc400000100, 0xc420cad720, 0x120cad6f8, 0x0, 0xc420cad800) pkg/sentry/mm/io.go:484 +0x260 fp=0xc420cad6d0 sp=0xc420cad5d0 pc=0x683740 gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).CopyOut(0xc4202cd900, 0xc61240, 0xc420869b00, 0xa37c10, 0xc4201df538, 0x4, 0x8, 0x0, 0xc4201df538, 0x4, ...) pkg/sentry/mm/io.go:119 +0x14b fp=0xc420cad760 sp=0xc420cad6d0 pc=0x6814fb gvisor.googlesource.com/gvisor/pkg/sentry/usermem.(*IOReadWriter).Write(0xc420cad818, 0xc4201df538, 0x4, 0x8, 0x10b6228, 0xa99f60, 0xc4201df530) pkg/sentry/usermem/usermem.go:155 +0x7c fp=0xc420cad7c8 sp=0xc420cad760 pc=0x5cf40c gvisor.googlesource.com/gvisor/pkg/sentry/usermem.CopyObjectOut(0xc61240, 0xc420869b00, 0xc5ff20, 0xc4202cd900, 0xa37c10, 0xa99f60, 0xc4201df530, 0x0, 0x0, 0x0, ...) pkg/sentry/usermem/usermem.go:184 +0x10a fp=0xc420cad858 sp=0xc420cad7c8 pc=0x5cf59a gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc420869b00, 0xc420cadab8, 0x0, 0x0, 0x0, 0x0) pkg/sentry/kernel/task_clone.go:296 +0xb9f fp=0xc420cada88 sp=0xc420cad858 pc=0x6decdf gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.clone(0xc420869b00, 0x1200011, 0x0, 0x0, 0xa37c10, 0xa37940, 0x7ffb, 0xc420cadb88, 0x40000002, 0x0) pkg/sentry/syscalls/linux/sys_thread.go:157 +0x21b fp=0xc420cadb20 sp=0xc420cada88 pc=0x8b554b gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Clone(0xc420869b00, 0x1200011, 0x0, 0x0, 0xa37c10, 0xa37940, 0x0, 0x202, 0xc420cadc10, 0x428854, ...) pkg/sentry/syscalls/linux/sys_thread.go:171 +0x67 fp=0xc420cadb80 sp=0xc420cadb20 pc=0x8b5607 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc420869b00, 0x38, 0x1200011, 0x0, 0x0, 0xa37c10, 0xa37940, 0x0, 0x10442000, 0xba0f80, ...) pkg/sentry/kernel/task_syscall.go:162 +0x307 fp=0xc420cadc38 sp=0xc420cadb80 pc=0x6f3437 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc420869b00, 0x38, 0x1200011, 0x0, 0x0, 0xa37c10, 0xa37940, 0x0, 0xa37940, 0x0) pkg/sentry/kernel/task_syscall.go:280 +0x62 fp=0xc420cadcc0 sp=0xc420cadc38 pc=0x6f4122 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc420869b00, 0x38, 0x1200011, 0x0, 0x0, 0xa37c10, 0xa37940, 0x0, 0x40b890, 0xc4205fc5f8) pkg/sentry/kernel/task_syscall.go:241 +0x91 fp=0xc420cadd20 sp=0xc420cadcc0 pc=0x6f3d51 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc420869b00, 0x2, 0xc420145200) pkg/sentry/kernel/task_syscall.go:216 +0x142 fp=0xc420cade28 sp=0xc420cadd20 pc=0x6f3692 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc420869b00, 0xc54040, 0x0) pkg/sentry/kernel/task_run.go:219 +0xe56 fp=0xc420cadf88 sp=0xc420cade28 pc=0x6eab96 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run(0xc420869b00, 0x4f) pkg/sentry/kernel/task_run.go:95 +0x174 fp=0xc420cadfd0 sp=0xc420cadf88 pc=0x6e99d4 runtime.goexit() bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/linux_amd64_pure_stripped/stdlib%/src/runtime/asm_amd64.s:2361 +0x1 fp=0xc420cadfd8 sp=0xc420cadfd0 pc=0x455f31 created by gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:258 +0x100