W0311 23:17:35.434607 927701 log.go:379] Invalid request partialResult true and err (type safecopy.BusError) SIGBUS at 0x7f29287ac000 for pwritev operation on "/tmp/syzkaller-testdir115021946/syzkaller.YpvrCt/1575/memory.events": goroutine 386604 [running]: gvisor.dev/gvisor/pkg/log.Stacks(0x2531800, 0xc000000001, 0xc000000001, 0x1c722a0) pkg/log/log.go:359 +0x119 gvisor.dev/gvisor/pkg/log.Traceback(0x1b0130c, 0x4c, 0xc005f3a5f0, 0x5, 0x5) pkg/log/log.go:378 +0x50 gvisor.dev/gvisor/pkg/sentry/syscalls/linux.HandleIOErrorVFS2(0x1c722a0, 0xc0019d5500, 0x1, 0x1c45d60, 0xc001048798, 0x1c460e0, 0x1c29738, 0x1ab9e2f, 0x7, 0xc00096d780, ...) pkg/sentry/syscalls/linux/error.go:56 +0x52d gvisor.dev/gvisor/pkg/sentry/syscalls/linux/vfs2.Pwritev(0xc0019d5500, 0x5, 0x200004c0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...) pkg/sentry/syscalls/linux/vfs2/read_write.go:557 +0x4a5 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0019d5500, 0x128, 0x5, 0x200004c0, 0x3, 0x0, 0x0, 0x0, 0x301, 0x1, ...) pkg/sentry/kernel/task_syscall.go:117 +0x582 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0019d5500, 0x128, 0x5, 0x200004c0, 0x3, 0x0, 0x0, 0x0, 0x408eb8, 0xc0019d5de7) pkg/sentry/kernel/task_syscall.go:292 +0xd2 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0019d5500, 0x128, 0x5, 0x200004c0, 0x3, 0x0, 0x0, 0x0, 0xc002a56760, 0x1ffffffff) pkg/sentry/kernel/task_syscall.go:239 +0x158 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0019d5500, 0x1, 0xc000000002) pkg/sentry/kernel/task_syscall.go:206 +0x27c gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc0019d5500, 0x5, 0x0) pkg/sentry/kernel/task_run.go:329 +0x152b gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0019d5500, 0x2265) pkg/sentry/kernel/task_run.go:102 +0x324 created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start pkg/sentry/kernel/task_start.go:376 +0x1da