On Thu, Nov 03, 2011 at 02:15:25PM -0700, Tommi Virtanen wrote: > If it's reproducible, I'm sure the XFS developers would appreciate if > you straced what ceph-mon does to get to the hang, tried to do similar > actions to reproduce it outside of ceph (e.g. "every time I write to > this file, it hangs"), and then give them a good bug report with a > dump of the filesystem, to figure out what really happened. XFS is just waiting for I/O to complete - xfs_bwrite is a very simple funtion that synchronously submits I/O, and xfs_buf_iowait is called to wait for the completion. This is a typical symptom for a broken I/O subsystem. What kind of setup do you use? Especially hardware RAID controllers tends to produce these kinds of issues. -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
