Alain Terriault wrote: > hi, > > I experienced 3 problems that i am 99% sure related to kernel-2.6.18-92.1.22.el5.centos.plus.x86_64.rpm <http://mirror.centos.org/centos/5.2/centosplus/x86_64/RPMS/kernel-2.6.18-92.1.22.el5.centos.plus.x86_64.rpm> > > #1 on a nfs server > problem : constantly appearing on all my machines "lockd: server 192.168.10.2 not responding, > timed out" > > solution : move to kernel-2.6.18-92.1.22.el5, never saw that message again. > I run a CentOS 2.6.18-92.1.22.el5 #1 SMP Tue Dec 16 11:57:43 EST 2008 x86_64 x86_64 x86_64 GNU/Linux kernel serving NFS with no issues. I have a number of CentOS 2.6.18-92.1.22.el5.centos.plus #1 SMP Wed Dec 17 10:49:19 EST 2008 x86_64 x86_64 x86_64 GNU/Linux workstations that have no issues as NFS clients. No experience of plus kernel used on servers. > #2 on the same nfs server > problem : it is a important server for our department, so i rarely do a "shutdown". > when i moved to kernel-2.6.18-92.1.22.el5 the "/sbin/shutdown -h now" did not succeed, i had to press the power button to shut it down. > the only thing that was on the screen, after 10 minutes, was a usb messages, i could unplug my usb keyboard and the kernel would notify > me of the changes, it seem that it was not totally frozen. > everything boot up properly, after the power cycle, so i assume all the files where close properly. > i only had this problem on this nfs server, other machines with the same kernel never had this shutdown problem. > > solution : move to kernel-2.6.18-92.1.22.el5, did power cycle test and all went just fine. > > > #3 on a vmware virtual machine > problem : > Feb 15 18:55:41 www kernel: nscd[5631]: segfault at 00002b89938405c0 rip 00002b891f30f7c5 rsp 00000000411256d0 error 4 > Feb 16 14:39:40 www nscd: 5642 invalid persistent database file "/var/db/nscd/passwd": verification failed > Feb 16 17:11:53 www kernel: nscd[5653]: segfault at 0000000040f9b000 rip 00002af497e3e4d4 rsp 0000000040f96050 error 6 > Feb 17 09:44:37 www nscd: 5639 invalid persistent database file "/var/db/nscd/hosts": verification failed > Feb 19 03:09:09 www kernel: nscd[5830]: segfault at 00002baab9b653cc rip 00002ba9afe3b7a6 rsp 0000000041ec96d0 error 4 > > for ldap accounts login was still possible, some of the directories became unaccessible and other directories where working just fine. > > rebooting nscd temporary fixed the problem for ~12-24 hours, same for a system reboot. > i did not push my investigation further, after my problems with nfs lock i instantly switch to kernel-2.6.18-92.1.22.el5 > > > solution : move to kernel-2.6.18-92.1.22.el5, never saw that message again. > > > I did not take that many notes or investigate that much, so i can not tell you much more. but i will do my best to reply to direct emails. > I am also not in a position to reproduce those problems. > I sent this post because i am concern they may be serious bugs in the centos.plus kernels. > > other than that, i am old centos fan, using it on terabytes of data and this is the first time i hit such a problem. > Yeah - me too, just love the stability > cheers, > alain > > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > -------------- next part -------------- A non-text attachment was scrubbed... Name: rkampen.vcf Type: text/x-vcard Size: 121 bytes Desc: not available URL: <http://lists.centos.org/pipermail/centos/attachments/20090224/dbbcbe97/attachment-0005.vcf>