Hi, ----- Ursprüngliche Mail ----- > Von: "Bug 1842037" <[email protected]> > An: "burk" <[email protected]> > Gesendet: Donnerstag, 3. Oktober 2019 01:22:16 > Betreff: [Bug 1842037] Re: Oops when Kerberos credentials are invalid
> Hi Frank, > > I have tested the new test kernel and it boots successfully. > > Please note this kernel is NOT SUPPORTED by Canonical, and is for > TESTING PURPOSES ONLY. ONLY Install in a dedicated test environment. > > Instructions to install (on a bionic system): > > 1) sudo add-apt-repository ppa:mruffell/sf241068-test > 2) sudo apt-get update > 3) sudo apt install linux-image-unsigned-5.0.0-27-generic > linux-headers-5.0.0-27-generic linux-headers-5.0.0-27 > linux-modules-5.0.0-27-generic linux-modules-extra-5.0.0-27-generic > 4) reboot > 5) uname -rv > 5.0.0-27-generic #28~18.04.1+hf241068v20191002b1-Ubuntu SMP Wed Oct 2 04:04:05 > UTC > > If you get different output from uname -rv, you might be booted into the > wrong kernel, and you will need to change your grub configuration. Let > me know if you need help with this. > > Otherwise, this test kernel contains the requested patches for Bug > 1842037 and Bug 1829878. Thank you very much. > Let me know how this test kernel goes, and if it fixes your NFS > problems. If it doesn't, it would be good to upload some logs so we can > have a better look. I applied the test kernel to 3 of our production systems (since there's no way to trigger either bug artificially). I know I shouldn't but I'm willing to take the heat for problems arising from doing that. I'll write you as soon as there's a hint of a problem on these machines. Best, Frank -- Frank Burkhardt <[email protected]> IT Dept., Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1842037 Title: Oops when Kerberos credentials are invalid Status in linux package in Ubuntu: Incomplete Status in linux source package in Disco: In Progress Bug description: There's a bug in Linux Kernel 5.0 which is triggered by invalid credentials when the NFS clients is trying to aquire them via GSSD. This affects NFS-Shares that are protected by krb5* security. They become unusable until the system is re-booted. The problem is quite severe on terminal servers with multiple users - some of them not caring about refreshing their kerberos tickets. A fix is available here: <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/sunrpc/clnt.c?id=7987b694ade8cc465ce10fb3dceaa614f13ceaf3> To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1842037/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
