Could it be related to the broken backport as described in https://tracker.ceph.com/issues/40102 ? (It did affect 4.19, not sure about 5.0) Paul -- Paul Emmerich Looking for help with your Ceph cluster? Contact us at https://croit.io croit GmbH Freseniusstr. 31h 81247 München www.croit.io Tel: +49 89 1896585 90 On Thu, Oct 24, 2019 at 4:23 PM Christopher Wieringa <cwieri39@xxxxxxxxxx> wrote: > > Hello all, > > > > I’ve been using the Ceph kernel modules in Ubuntu to load a CephFS filesystem quite successfully for several months. Yesterday, I went through a round of updates on my Ubuntu 18.04 machines, which loaded linux-image-5.0.0-32-generic as the kernel. I’m noticing that while the kernel boots and the CephFS filesystem is mounted successfully, any actual file traffic between client/servers is causing the client to hard lock without any kernel panics seen in the logs. Downgrading to linux-image-5.0.0-31-generic fixes the issue. > > I’m planning on trying to figure out how to get a crash kernel running and see if I can generate a log file of some sort, but just wondering if anyone else mounting Ubuntu 18.04 and CephFS via kernel modules could replicate this crashing behavior in their environment. I don’t have experience in setting up crash kernels or even in filing Ubuntu kernel bugs, so I thought I’d ask this list to see if someone else can replicate this. > > My Setup: > Ubuntu 18.04.3 LTS amd64 > > Kernel: linux-image-5.0.0-32-generic (installed through the linux-generic-hwe-18.04 metapackage) > > Number of machines affected/replicated the lockup issues: >100 (three generations of desktop computers, and multiple virtual machines as well) > > > > Also, any suggestions for how to get a log for this are appreciated. > > > > Chris Wieringa > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
 |