On 2013.07.19 at 14:13 -0500, Ben Myers wrote: > Hey Markus, > > On Fri, Jul 19, 2013 at 06:32:20PM +0200, Markus Trippelsdorf wrote: > > On 2013.07.19 at 11:02 -0500, Eric Sandeen wrote: > > > > Unfortunately it turned out that in this case there is filesystem > > > > corruption. (Fortunately this normally happens only very rarely on rc1 > > > > kernels). > > > > > > Corruption is when you get back data that you did not write, > > > or metadata which is inconsistent or unreadable even after a proper > > > log replay. > > > > > > Corruption is _not_ unsynced, buffered data that was lost on a > > > crash or poweroff. > > > > > > But I might not have followed the thread properly, and I might > > > misunderstand your situation. > > > > > > When you experience this lost file [data] scenario, was it after an > > > orderly reboot, or after a crash and/or system reset? > > > > To reproduce this issue simply boot into your desktop and then hit > > sysrq-c and reboot. After log replay without error messages, the > > filesystem is in an inconsistent state and many small config files are > > lost. There are also undeletable files. You need to run xfs_repair > > manually to bring the filesystem back to normal. > > > > When cca9f93a52d is reverted, you don't loose your config files and the > > filesystem is OK after log replay. xfs_repair reports no issues at all. > > I'm a bit late to the party, but I wanted to give this a try. > > On the machine I tried, I was not able to reproduce any corruption with a > > echo b > /proc/sysrq-trigger > > xfs_repair -n found no problems at all. I'll try it on a few more. > > Could you post some of your latest xfs_repair output? And, have you been able > to reproduce this on more than one machine? I may have missed that detail > earlier in the thread. I didn't save the xfs_repair output on every run. See the examples that I've posted in this thread before. And the issue always happens on the same machine. -- Markus _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
