265 01:39:19.471213 <... futex resumed>) = 0 <0.013009> 265 01:39:19.471229 sched_yield() = 0 <0.000010> 265 01:39:19.471261 futex(0xe91b38, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...> 264 01:39:19.471284 futex(0xe91b38, FUTEX_WAKE_PRIVATE, 1) = 1 <0.000011> 265 01:39...
为了解决上述问题,linux内核引入了futex机制,futex主要包括等待和唤醒两个方法:futex_wait和futex_wake,其定义如下 //uaddr指向一个地址,val代表这个地址期待的值,当*uaddr==val时,才会进行wait int futex_wait(int *uaddr, int val); //唤醒n个在uaddr指向的锁变量上挂起等待的进程 int futex_wake(int *u...
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=10914, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- rt_sigreturn({mask=[]}) = 0 futex(0x58de70, FUTEX_WAKE_PRIVATE, 1) = 1 futex(0x58dd70, FUTEX_WAKE_PRIVATE, 1) = 1 wait4(10914, [{WIFEXITED(s) &...
futex(0x55e881e388e8, FUTEX_WAIT_PRIVATE, 0, NULL) = 0 epoll_pwait(4, Login did not succeed, error: Error response from daemon: Get "https://registry-1.docker.io/v2/": EOF Username (hemna6969): [], 128, 0, NULL, 0) = 0 epoll_pwait(4, Password: [{events=EPOLLOUT, data=...
I have tried to set the driver to vfs, as I saw in a couple of answers in stack overflow that this could help... but did not. I have also attached strace to the docker process and the only entry I get isfutex(0x28ec8a8, FUTEX_WAIT_PRIVATE, 0, NULL <detached ...>. ...
private_data = 0xffffa1032ad42000 crash> pipe_inode_info 0xffffa1032ad42000---和上面的堆栈对的上 struct pipe_inode_info { mutex = { count = { counter = 1 }, 。。。 } }, nrbufs = 1, ---只有一个buf,说明pipe创建的时候,page不够,这个主要受限于 pipe-user-pages-soft的默认配置以及...
private_data = 0xffffa1032ad42000 crash> pipe_inode_info 0xffffa1032ad42000---和上面的堆栈对的上 struct pipe_inode_info { mutex = { count = { counter = 1 }, 。。。 } }, nrbufs = 1, ---只有一个buf,说明pipe创建的时候,page不够,这个主要受限于 pipe-user-pages-soft的默认配置以及...
Docker 提供了控制容器使用资源的方法,可以限制容器使用多少内存或 CPU等,在docker run 命令的运行时配置标志实现资源限制功能。 其中许多功能都要求宿主机的内核支持,要检查是否支持这些功能,可以使用docker info 命令 ,如果内核中的某项特性可能会在输出结尾处看到警告, 如下所示: ...
host1的配置文件（/etc/default/docker）是这样的：BRIDGE=docker0CIDR=172.17.64.0/18wait_ip(){...
[root@ eureka]# strace-p6184strace:Process6184attachedfutex(0x7fbd15b2a9d0,FUTEX_WAIT,6,NULL)=?ERESTARTSYS(To be restartedifSA_RESTART is set)---SIGTERM{si_signo=SIGTERM,si_code=SI_USER,si_pid=0,si_uid=0}---futex(0x7fbd14ef1580,FUTEX_WAKE_PRIVATE,1)=1rt_sigreturn({mask=[]})=202...