Re: 4.9 Kernels Hit Psand Repos
Ben Green <[email protected]> Thu, 20 Sep 2018 20:34:07 +0100
| Newsgroups | gmane.linux.vserver |
|---|---|
| Message-ID | <[email protected]> |
Hi Andrew, great you got that sorted. I'll hopefully be able to be a bit more pro-active with the builds for Stretch, and for Buster, as we've decided not to roll out LXC to productions servers for this release cycle. Cheers, Ben Quoting Andrew Ruthven <[email protected]>: > I decided to try the latest 4.9 kernel again tonight and I tracked down > the performance issue I was seeing. iostat was showing one hard drive > with utterly terribly wait times, and even running smartctl against > that drive was epically slow (all other drives ran normally). > > Turns out there was a dodgy SATA cable for that drive. After swapping > the cable, I/O on the machine is back to what it should be! > > At a guess something has changed in the SATA drivers between 4.1.x and > 4.9.y and that change of behaviour triggered the issue I was observing. > > Ben, thank you for publishing your kernels! > > Cheers, > Andrew >