On Fri, Jul 03, 2015 at 05:07:29AM -0400, Alex Gorbachev wrote: > Hello, we are seeing this and similar errors on multiple Supermicro nodes > running Ceph. OS is Ubuntu 14.04.2 with kernel 4.1 > > Thank you for any info and troubleshooting advice. Nothing to suggest that this is an XFS problem. Memory reclaim triggered by network stack memory pressure is causing inode eviction. While removing the page cache it's falling over in the generic truncate code doing a radix tree lookup. That's all generic code - XFS never touches the page cache radix tree directly. I haven't seen this before - is this a new problem since you upgraded your kernel to 4.1? Is it repeatable? if yes to both, then a bisect may be in order to isolate the problematic commit... Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs