On 02/02/2016 05:26 PM, Pavel Tikhomirov wrote: > 1) put core_pattern on ve_struct and add virtualized proc_handler > using macro sysctl_virtual() > > 2) use in-container khelper kthread for collecting cores > > We need support of pipe'ing coredump in CT. If process crashes > in CT and kernel.core_pattern begins with "|" we get error: > > CT: > CT-101-bash-4.2# sysctl kernel.core_pattern > kernel.core_pattern = |/root/core_test %p UID=%u GID=%g sig=%s > CT-101-bash-4.2# sleep 100 & > [1] 445 > CT-101-bash-4.2# kill -11 445 > CT-101-bash-4.2# > [1]+ Segmentation fault sleep 100 > CT-101-bash-4.2# ll /root > total 8 > rwxr-xr-x 1 root root 7424 Jan 27 17:28 core_test > Host: > [root@s143 ~]# less /var/log/messages > Jan 28 10:40:42 s143 kernel: [87698.969582] Core dump to > |/root/core_test 445 UID=0 GID=0 sig=11 pipe failed > > Also docker is going to use pipe'ing in coredumps functionality: > https://github.com/docker/docker/issues/19289 > > https://jira.sw.ru/browse/PSBM-43596 > > v2: split sysctl_virtual in separate patch > Signed-off-by: Pavel Tikhomirov <ptikhomi...@virtuozzo.com>
Reviewed-by: Andrey Ryabinin <aryabi...@virtuozzo.com> _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel
