Hello netbsd, The ocfs2 project is still be developed by us (from SUE, Huawei, Oracle and H3C. etc.). If you encountered some problem, please send the mail to ocfs2-devel mail list, we usually watch that mail for ocfs2 kernel related issues.
>>> > Hello All, > > I wrote earlier about our OCFS2 crash issue in KVM due to bug in the SMP > code. > > For this we come up with a solution: > > Instead of using multiple vcpus > <vcpu placement='static'>8</vcpu> > > using a single one and multiple cores instead: > <topology sockets='8' cores='8' threads='1'/> > > And applying key tune options to sysctl.conf: > > vm.min_free_kbytes=131072 > vm.zone_reclaim_mode=1 > > Seemed to be helped, the fs did not crash right away when we were > hammering it with apache benchmarks with 10000 requests however last > night I started a large rsync operation from a 5TB OCFS2 FS mounted in > the VM to another OCFS2 mounted in the same VM and ended up with: > > https://urldefense.proofpoint.com/v2/url?u=https-3A__ibb.co_gFeGg5&d=DwICAg&c=R > > oP1YumCXCgaWHvlZYR8PQcxBKCX5YTpkKY057SbK10&r=QxGl6UoyzTJm_1fAz5ZR9izvWJhWcqbtY > n-0afBpa7A&m=cYprGRHz-oQmhnx4HIke8sTdCG_tf8Jb-rF6sHnYLnk&s=ajWfQIlUZOpElFWxoKcmvTI > k7J3PpuCJITcnXfJQHrc&e= >From the kernel crash backtrace, this problem should be that long time to >acquiring spin_lock triggers a NMI interruption. Could you give a detailed reproduce steps? since we want to reproduce this issue in local, then try to fix it. Thanks Gang > > After trying a lot of different kernels starting from the 3.x series, > now we are using 4.13.2 latest kernel with default configuration but > these issues still present. Is this OCFS2 project still being developed? > With this crashing and unreliability it cannot be used in production > unless you put in place bunch of safeguards to reset out the whole > virtualmachine when it crashes. > > Thanks > > _______________________________________________ > Ocfs2-users mailing list > Ocfs2-users@oss.oracle.com > https://oss.oracle.com/mailman/listinfo/ocfs2-users _______________________________________________ Ocfs2-users mailing list Ocfs2-users@oss.oracle.com https://oss.oracle.com/mailman/listinfo/ocfs2-users
