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panic: ptrace set regs failed: input/output error

Status: fixed on 2018/12/12 09:36
Fix commit: 99d595869332 Validate FS_BASE in Task.Clone
First crash: 2279d, last: 2181d

Sample crash report:
panic: ptrace set regs failed: input/output error

goroutine 141 [running]:
gvisor.googlesource.com/gvisor/pkg/sentry/platform/ptrace.(*subprocess).switchToApp(0xc420136000, 0xc4202cee40, 0xc6e2a0, 0xc420200240, 0x404800)
	pkg/sentry/platform/ptrace/subprocess.go:437 +0xa72
gvisor.googlesource.com/gvisor/pkg/sentry/platform/ptrace.(*context).Switch(0xc4202cee40, 0xc68340, 0xc420136000, 0xc6e2a0, 0xc420200240, 0xc4ffffffff, 0xc42051cf78, 0x0, 0x6d1e7f, 0x0)
	pkg/sentry/platform/ptrace/ptrace.go:102 +0x71
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc4204d8900, 0xc5bbc0, 0x0)
	pkg/sentry/kernel/task_run.go:209 +0x17d
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run(0xc4204d8900, 0x9)
	pkg/sentry/kernel/task_run.go:95 +0x174
created by gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:258 +0x100

Crashes (712):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/08/31 10:22 https://gvisor.googlesource.com/gvisor master ae648bafda2d a4718693 .config console log report syz C ci-gvisor-ptrace-direct-overlay-host
2018/08/31 09:51 https://gvisor.googlesource.com/gvisor master ae648bafda2d a4718693 .config console log report syz ci-gvisor-ptrace-direct-overlay-host
2018/08/31 06:44 https://gvisor.googlesource.com/gvisor master ae648bafda2d a4718693 .config console log report syz ci-gvisor-ptrace-direct-overlay-host
2018/12/07 02:19 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/12/06 21:44 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/12/06 21:37 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/12/06 20:33 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/12/06 19:27 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/12/06 12:46 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/12/06 12:26 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/12/06 11:22 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/12/06 10:15 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/12/06 05:40 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/12/06 04:53 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/11/29 20:43 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/11/29 11:54 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/11/29 10:53 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/11/29 10:51 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/11/29 06:19 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/11/29 05:14 https://gvisor.googlesource.com/gvisor master 9d17eba121da ac912200 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/11/23 13:36 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 0ab8db64 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/23 13:29 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 0ab8db64 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/23 10:51 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 87815d9d .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/23 09:37 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 87815d9d .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/23 08:34 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 87815d9d .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/23 06:50 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 87815d9d .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/23 05:47 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 87815d9d .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/23 04:12 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 87815d9d .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/23 03:53 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 87815d9d .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/23 01:57 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 87815d9d .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/23 00:32 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 87815d9d .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/22 23:18 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 87815d9d .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/22 20:53 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 87815d9d .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/22 17:30 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 2ee77802 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/22 16:04 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 2ee77802 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/22 13:30 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 2ee77802 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/22 12:36 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 2ee77802 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/22 11:32 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 2ee77802 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/22 10:09 https://gvisor.googlesource.com/gvisor master 9d17eba121da 2ee77802 .config console log report ci-gvisor-kvm-direct-overlay-host-race
2018/11/22 08:41 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 2ee77802 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/22 06:13 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 9db828b5 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/22 04:43 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 9db828b5 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/22 04:35 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 9db828b5 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/22 02:50 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 9db828b5 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/22 01:43 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 9db828b5 .config console log report ci-gvisor-ptrace-direct-overlay-host
2018/11/21 23:58 https://gvisor.googlesource.com/gvisor master 8cbca46b6d99 9db828b5 .config console log report ci-gvisor-ptrace-direct-overlay-host
* Struck through repros no longer work on HEAD.