I0731 09:50:40.137628 31526 x:0] Watchdog starting loop, tasks: 6, discount: 0s I0731 09:51:11.545414 35321 x:0] *************************** I0731 09:51:11.547476 35321 x:0] Args: [/syzkaller/managers/ptrace-proxy-sandbox-race/current/image -root /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root -watchdog-action=panic -network=none -platform=ptrace -file-access=proxy -network=sandbox exec -user=0:0 -cap CAP_CHOWN -cap CAP_DAC_OVERRIDE -cap CAP_DAC_READ_SEARCH -cap CAP_FOWNER -cap CAP_FSETID -cap CAP_KILL -cap CAP_SETGID -cap CAP_SETUID -cap CAP_SETPCAP -cap CAP_LINUX_IMMUTABLE -cap CAP_NET_BIND_SERVICE -cap CAP_NET_BROADCAST -cap CAP_NET_ADMIN -cap CAP_NET_RAW -cap CAP_IPC_LOCK -cap CAP_IPC_OWNER -cap CAP_SYS_MODULE -cap CAP_SYS_RAWIO -cap CAP_SYS_CHROOT -cap CAP_SYS_PTRACE -cap CAP_SYS_PACCT -cap CAP_SYS_ADMIN -cap CAP_SYS_BOOT -cap CAP_SYS_NICE -cap CAP_SYS_RESOURCE -cap CAP_SYS_TIME -cap CAP_SYS_TTY_CONFIG -cap CAP_MKNOD -cap CAP_LEASE -cap CAP_AUDIT_WRITE -cap CAP_AUDIT_CONTROL -cap CAP_SETFCAP -cap CAP_MAC_OVERRIDE -cap CAP_MAC_ADMIN -cap CAP_SYSLOG -cap CAP_WAKE_ALARM -cap CAP_BLOCK_SUSPEND -cap CAP_AUDIT_READ ci-gvisor-ptrace-proxy-sandbox-race-2 /syz-execprog -executor=/syz-executor -arch=amd64 -sandbox=none -procs=1 -repeat=0 -threaded=true -collide=true -cover=0 -fault_call=-1 -fault_nth=-1 /syzkaller341867289] I0731 09:51:11.547900 35321 x:0] Git Revision: 72627b310e89405fb0215d773405d73f305de993 I0731 09:51:11.548016 35321 x:0] PID: 35321 I0731 09:51:11.548129 35321 x:0] UID: 0, GID: 0 I0731 09:51:11.548298 35321 x:0] Configuration: I0731 09:51:11.548422 35321 x:0] RootDir: /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root I0731 09:51:11.548523 35321 x:0] Platform: ptrace I0731 09:51:11.548617 35321 x:0] FileAccess: proxy, overlay: false I0731 09:51:11.548763 35321 x:0] Network: sandbox, logging: false I0731 09:51:11.548886 35321 x:0] Strace: false, max size: 1024, syscalls: [] I0731 09:51:11.549009 35321 x:0] *************************** I0731 09:51:11.567991 31526 x:0] EXEC: [/syz-execprog -executor=/syz-executor -arch=amd64 -sandbox=none -procs=1 -repeat=0 -threaded=true -collide=true -cover=0 -fault_call=-1 -fault_nth=-1 /syzkaller341867289] 2018/07/31 09:51:14 parsed 1 programs 2018/07/31 09:51:14 executed programs: 0 ================== WARNING: DATA RACE Read at 0x00c4203327f8 by goroutine 16: gvisor.googlesource.com/gvisor/pkg/waiter.(*Entry).Next() bazel-out/k8-fastbuild/bin/pkg/ilist/interface_list.go:150 +0x4c gvisor.googlesource.com/gvisor/pkg/ilist.(*List).Remove() bazel-out/k8-fastbuild/bin/pkg/ilist/interface_list.go:125 +0x6a gvisor.googlesource.com/gvisor/pkg/waiter.(*Queue).EventUnregister() pkg/waiter/waiter.go:177 +0x67 gvisor.googlesource.com/gvisor/pkg/sentry/fs/tty.(*masterFileOperations).EventUnregister() pkg/sentry/fs/tty/master.go:129 +0x81 gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*File).EventUnregister() pkg/sentry/fs/file.go:180 +0x60 gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.readv() pkg/sentry/syscalls/linux/sys_read.go:223 +0x5e1 gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Read() pkg/sentry/syscalls/linux/sys_read.go:67 +0x295 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall() pkg/sentry/kernel/task_syscall.go:162 +0x14e gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke() pkg/sentry/kernel/task_syscall.go:278 +0x7d gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter() pkg/sentry/kernel/task_syscall.go:241 +0xc3 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall() pkg/sentry/kernel/task_syscall.go:216 +0x19c gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute() pkg/sentry/kernel/task_run.go:217 +0x1501 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run() pkg/sentry/kernel/task_run.go:95 +0x264 Previous write at 0x00c4203327f8 by goroutine 260: gvisor.googlesource.com/gvisor/pkg/waiter.(*Entry).SetNext() bazel-out/k8-fastbuild/bin/pkg/ilist/interface_list.go:160 +0x50 gvisor.googlesource.com/gvisor/pkg/ilist.(*List).Remove() bazel-out/k8-fastbuild/bin/pkg/ilist/interface_list.go:128 +0x9b gvisor.googlesource.com/gvisor/pkg/waiter.(*Queue).EventUnregister() pkg/waiter/waiter.go:177 +0x67 gvisor.googlesource.com/gvisor/pkg/sentry/fs/tty.(*masterFileOperations).EventUnregister() pkg/sentry/fs/tty/master.go:130 +0xcd gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*File).EventUnregister() pkg/sentry/fs/file.go:180 +0x60 gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.readv() pkg/sentry/syscalls/linux/sys_read.go:223 +0x5e1 gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Read() pkg/sentry/syscalls/linux/sys_read.go:67 +0x295 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall() pkg/sentry/kernel/task_syscall.go:162 +0x14e gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke() pkg/sentry/kernel/task_syscall.go:278 +0x7d gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter() pkg/sentry/kernel/task_syscall.go:241 +0xc3 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall() pkg/sentry/kernel/task_syscall.go:216 +0x19c gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute() pkg/sentry/kernel/task_run.go:217 +0x1501 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run() pkg/sentry/kernel/task_run.go:95 +0x264 Goroutine 16 (running) created at: gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start() pkg/sentry/kernel/task_start.go:258 +0x193 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Clone() pkg/sentry/kernel/task_clone.go:316 +0x110a gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.clone() pkg/sentry/syscalls/linux/sys_thread.go:157 +0x22e gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Clone() pkg/sentry/syscalls/linux/sys_thread.go:171 +0x80 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall() pkg/sentry/kernel/task_syscall.go:162 +0x14e gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke() pkg/sentry/kernel/task_syscall.go:278 +0x7d gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter() pkg/sentry/kernel/task_syscall.go:241 +0xc3 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall() pkg/sentry/kernel/task_syscall.go:216 +0x19c gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute() pkg/sentry/kernel/task_run.go:217 +0x1501 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run() pkg/sentry/kernel/task_run.go:95 +0x264 Goroutine 260 (running) created at: gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start() pkg/sentry/kernel/task_start.go:258 +0x193 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Clone() pkg/sentry/kernel/task_clone.go:316 +0x110a gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.clone() pkg/sentry/syscalls/linux/sys_thread.go:157 +0x22e gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Clone() pkg/sentry/syscalls/linux/sys_thread.go:171 +0x80 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall() pkg/sentry/kernel/task_syscall.go:162 +0x14e gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke() pkg/sentry/kernel/task_syscall.go:278 +0x7d gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter() pkg/sentry/kernel/task_syscall.go:241 +0xc3 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall() pkg/sentry/kernel/task_syscall.go:216 +0x19c gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute() pkg/sentry/kernel/task_run.go:217 +0x1501 gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run() pkg/sentry/kernel/task_run.go:95 +0x264 ================== W0731 09:51:16.797860 31520 x:0] FATAL ERROR: error running container: error waiting on container "ci-gvisor-ptrace-proxy-sandbox-race-2": EOF error running container: error waiting on container "ci-gvisor-ptrace-proxy-sandbox-race-2": EOF W0731 09:51:16.798137 35321 x:0] FATAL ERROR: error getting processes for container: error executing in sandbox: EOF error getting processes for container: error executing in sandbox: EOF