On Mon, Jul 19, 2010 at 04:09:12PM +0300, Avi Kivity wrote: > On 07/19/2010 03:48 PM, Sebastian Hetze wrote: >> >>> Looks like a false alarm then. The rmdir is waiting for the mount to >>> flush everything to disk, which is slow and takes a while. >>> >>> Does it return eventually? >>> >> No, it does not return within hours (>10). And the problem occurs only >> once in a while although the system is busy every day (and night) >> and automount is mounting/expiring frequently. >> >> I would expect the "/bin/umount dir" process (which is forked by >> automount if I read the code correctly) to return only after the flush >> is complete. So I expect the rmdir being called afterwards on an plain >> empty directory. >> >> BTW: the mount is just a bind mount, so no flush should be necessary >> anyway. >> > > It looks like VFS breakage. Does this happen with older guest kernels? currently I can confirm this problem with 2.6.31-22-generic-pae back to 2.6.31-16-generic-pae. What guest kernel version would you suggest? -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html