On 06/07/2016 03:18 PM, Wayne Betts wrote: > On 6/7/2016 11:22 AM, Johnny Hughes wrote: >> On 06/07/2016 09:56 AM, Wayne Betts wrote: >>> I'm not sure if this is an appropriate place for this question - please gently >>> steer me to a better place if you think there is one. >>> >>> I have a machine using a kernel package from the CentOS Community Build System >>> (specifically kernel-3.18.21-16.el6 from >>> http://cbs.centos.org/koji/buildinfo?buildID=4757, but my question applies to >>> other CBS kernel versions as well from what I can tell) >>> >>> The machine is crashing with some regularity on Sunday mornings. Looking at a >>> kdump core dump might help narrow down the cause of the crashes. >>> >>> But the CBS kernel packages don't appear to include kernel-debuginfo packages, >>> and the kernel.spec file appears to me (a non-expert for sure) to have had the >>> necessary pieces removed, so I don't know how to rebuild from the srpm and get >>> the debuginfo packages that way either. >>> >>> If someone could help me find or build the kernel-debuginfo package, it will be >>> appreciated. >>> >> >> Those kernel packages do not build debuginfo files. That is also not >> nearly the newest package. There is a 3.18.34-20 package here: >> >> http://cbs.centos.org/koji/buildinfo?buildID=11179 >> >> You can see the packages that are built and look at all the build logs >> and root logs, etc, by going to: >> >> http://cbs.centos.org/koji/ >> >> and adding kernel in the search box .. then picking the version you are >> interested in. >> >> But, as you can see in the above link, there are no debuginfo files >> produced. >> >> However, we do take updates directly from the kernel.org 3.18 LTS kernel >> tree, so there are a lot of things that have been fixed (and a lot of >> security updates) since 3.18.21 .. in fact you can see all of the >> changelogs starting with : >> >> https://cdn.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.22 >> >> and using 23, 24. 25, 26, 27, 28, 29, 30, 31, 32, 33, and 34 for the >> last number to review all the changelogs. >> >> Thanks, >> Johnny Hughes >> > > > Thank you for your reply Johnny. I tried the latest, > kernel-3.18.34-20.el6.x86_64, and that backfired - attempting to read from our > ceph cluster triggers an immediate crash. > > The behaviour of crashing on cephFS access starts at 3.18.30-20 in the CBS kernels. > > Meanwhile, 3.18.25-20 crashes early at boot, failing to mount the root > filesystem (so I don't know if the Ceph crash happens at this kernel version). > > I'm leaving the system live now at 3.18.25-19. Assuming this hasn't introduced > some additional problem(s), it will be a while before we know if this has > reduced or eliminated the crashes we are experiencing. > I have not specifically tried to enable ceph in those kernels .. is there anyone on the Storage sig who would take a look at the x86_64 kernek config file and recommend changes to enable ceph: Here is the config file if someone from CEPH can help: https://raw.githubusercontent.com/hughesjr/xen-kernel/master/SOURCES/config-x86_64 Thanks, Johnny Hughes -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 198 bytes Desc: OpenPGP digital signature URL: <http://lists.centos.org/pipermail/centos-devel/attachments/20160607/c0a8dd16/attachment-0008.sig>