On Sun, 21 Feb 2016, Mikael Pettersson wrote:
I've done two git bisects on this. The first one was inconclusive (pointed to a harmless commit), but the second one ended up with: # first bad commit: [ac4de9543aca59f2b763746647577302fbedd57e] Merge branch 'akpm' (patches from Andrew Morton) That's a big pile of VM changes, so I think it could be the culprit.
I think this issue may date back to v2.6.38 or earlier. The redhat.com bug report was closed in 2012 but Fedora users were still seeing the problem after it was supposedly fixed. https://bugzilla.redhat.com/show_bug.cgi?id=712019 That page also has a link to the bug report for Ubuntu: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/484045 BTW, I came across this recently: "Rik van Riel pointed out that [the kswapd thread] tends to be slow for [the purpose of compaction], and it can get stuck in a shrinker somewhere waiting for a lock." http://lwn.net/Articles/684611/ Perhaps a stack trace would help to ascertain whether this is the same known bug or not (?) -- -- To unsubscribe from this list: send the line "unsubscribe linux-m68k" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
