fatal error: fault
[signal SIGBUS: bus error code=0x2 addr=0x7ffa18e3d020 pc=0x456bca]

goroutine 6506 [running]:
runtime.throw(0xba2b04, 0x5)
	GOROOT/src/runtime/panic.go:616 +0x81 fp=0xc420e99070 sp=0xc420e99050 pc=0x429441
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:385 +0x273 fp=0xc420e990c0 sp=0xc420e99070 pc=0x43e6b3
runtime.memmove(0x7ffa18e3d000, 0x7ffa1e027000, 0x2000)
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/linux_amd64_pure_stripped/stdlib%/src/runtime/memmove_amd64.s:362 +0x42a fp=0xc420e990c8 sp=0xc420e990c0 pc=0x456bca
gvisor.googlesource.com/gvisor/pkg/sentry/safemem.Copy(0x7ffa18e3d000, 0x2000, 0x0, 0x7ffa1e027000, 0x2000, 0x2000, 0x0, 0xc420e99200, 0x428854)
	pkg/sentry/safemem/block_unsafe.go:199 +0x33d fp=0xc420e99178 sp=0xc420e990c8 pc=0x5c8ecd
gvisor.googlesource.com/gvisor/pkg/sentry/safemem.CopySeq(0x7ffa18e3d000, 0xffffffffffffffff, 0x0, 0x2000, 0x7ffa1e027000, 0xffffffffffffffff, 0x0, 0x2000, 0x0, 0x0, ...)
	pkg/sentry/safemem/seq_unsafe.go:276 +0x25d fp=0xc420e99248 sp=0xc420e99178 pc=0x5cbd7d
gvisor.googlesource.com/gvisor/pkg/sentry/safemem.(*BlockSeqReader).ReadToBlocks(0xc42063d1e0, 0x7ffa18e3d000, 0xffffffffffffffff, 0x0, 0x2000, 0xc420e99390, 0x40fb69, 0xc42063d1e0)
	pkg/sentry/safemem/io.go:86 +0x84 fp=0xc420e992c8 sp=0xc420e99248 pc=0x5c95b4
gvisor.googlesource.com/gvisor/pkg/sentry/safemem.ReadFullToBlocks(0xc54320, 0xc42063d1e0, 0x7ffa18e3d000, 0xffffffffffffffff, 0x0, 0x2000, 0x0, 0x2000, 0x0)
	pkg/sentry/safemem/io.go:54 +0xe4 fp=0xc420e99348 sp=0xc420e992c8 pc=0x5c94c4
gvisor.googlesource.com/gvisor/pkg/sentry/platform.AllocateAndFill(0xc63ac0, 0xc42028e000, 0x2000, 0x1, 0xc54320, 0xc42063d1e0, 0xffffffffffffffff, 0x0, 0x2000, 0xc4221d0668)
	pkg/sentry/platform/platform.go:426 +0x114 fp=0xc420e993d0 sp=0xc420e99348 pc=0x5ea724
gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).breakCopyOnWriteLocked(0xc4221d0000, 0xc4221d0668, 0x5, 0xa37000, 0xa38000, 0xa37000, 0xa38000, 0xc4221d0668, 0x5, 0xc4221d0668)
	pkg/sentry/mm/pma.go:433 +0x34d fp=0xc420e994f0 sp=0xc420e993d0 pc=0x688bad
gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).getPMAsLocked(0xc4221d0000, 0xc61240, 0xc420595600, 0xc4221d0070, 0x5, 0xa37000, 0xa38000, 0x1, 0xc4221d0070, 0x6, ...)
	pkg/sentry/mm/pma.go:142 +0x2a2 fp=0xc420e995d0 sp=0xc420e994f0 pc=0x687202
gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings(0xc4221d0000, 0xc61240, 0xc420595600, 0xa37c10, 0xa37c14, 0xc400000100, 0xc420e99720, 0x20e996f8, 0xc420e99728, 0xc420e99800)
	pkg/sentry/mm/io.go:484 +0x260 fp=0xc420e996d0 sp=0xc420e995d0 pc=0x683740
gvisor.googlesource.com/gvisor/pkg/sentry/mm.(*MemoryManager).CopyOut(0xc4221d0000, 0xc61240, 0xc420595600, 0xa37c10, 0xc4b69496c8, 0x4, 0x8, 0x0, 0xc4b69496c8, 0x4, ...)
	pkg/sentry/mm/io.go:119 +0x14b fp=0xc420e99760 sp=0xc420e996d0 pc=0x6814fb
gvisor.googlesource.com/gvisor/pkg/sentry/usermem.(*IOReadWriter).Write(0xc420e99818, 0xc4b69496c8, 0x4, 0x8, 0x10b6228, 0xa99f60, 0xc4b69496c0)
	pkg/sentry/usermem/usermem.go:155 +0x7c fp=0xc420e997c8 sp=0xc420e99760 pc=0x5cf40c
gvisor.googlesource.com/gvisor/pkg/sentry/usermem.CopyObjectOut(0xc61240, 0xc420595600, 0xc5ff20, 0xc4221d0000, 0xa37c10, 0xa99f60, 0xc4b69496c0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/usermem/usermem.go:184 +0x10a fp=0xc420e99858 sp=0xc420e997c8 pc=0x5cf59a
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc420595600, 0xc420e99ab8, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/kernel/task_clone.go:296 +0xb9f fp=0xc420e99a88 sp=0xc420e99858 pc=0x6decdf
gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.clone(0xc420595600, 0x1200011, 0x0, 0x0, 0xa37c10, 0xa37940, 0xe978, 0xc420e99b88, 0x40000002, 0x0)
	pkg/sentry/syscalls/linux/sys_thread.go:157 +0x21b fp=0xc420e99b20 sp=0xc420e99a88 pc=0x8b554b
gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Clone(0xc420595600, 0x1200011, 0x0, 0x0, 0xa37c10, 0xa37940, 0x0, 0x202, 0xc420e99c10, 0x428854, ...)
	pkg/sentry/syscalls/linux/sys_thread.go:171 +0x67 fp=0xc420e99b80 sp=0xc420e99b20 pc=0x8b5607
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc420595600, 0x38, 0x1200011, 0x0, 0x0, 0xa37c10, 0xa37940, 0x0, 0xb550000, 0xba0f80, ...)
	pkg/sentry/kernel/task_syscall.go:162 +0x307 fp=0xc420e99c38 sp=0xc420e99b80 pc=0x6f3437
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc420595600, 0x38, 0x1200011, 0x0, 0x0, 0xa37c10, 0xa37940, 0x0, 0xa37940, 0x0)
	pkg/sentry/kernel/task_syscall.go:280 +0x62 fp=0xc420e99cc0 sp=0xc420e99c38 pc=0x6f4122
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc420595600, 0x38, 0x1200011, 0x0, 0x0, 0xa37c10, 0xa37940, 0x0, 0x40b890, 0xc420606328)
	pkg/sentry/kernel/task_syscall.go:241 +0x91 fp=0xc420e99d20 sp=0xc420e99cc0 pc=0x6f3d51
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc420595600, 0x2, 0xc420edf0e0)
	pkg/sentry/kernel/task_syscall.go:216 +0x142 fp=0xc420e99e28 sp=0xc420e99d20 pc=0x6f3692
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc420595600, 0xc54040, 0x0)
	pkg/sentry/kernel/task_run.go:219 +0xe56 fp=0xc420e99f88 sp=0xc420e99e28 pc=0x6eab96
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run(0xc420595600, 0x6c1)
	pkg/sentry/kernel/task_run.go:95 +0x174 fp=0xc420e99fd0 sp=0xc420e99f88 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=0xc420e99fd8 sp=0xc420e99fd0 pc=0x455f31
created by gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:258 +0x100