Li Zefan wrote: > > Nik Markovic wrote: > > Hi All, > > > > I have been encountering consistent btrfs filesystem crashes when > > using cp –reflink=always on a large file and modifying it. I believe > > that the test file needs to be fairly large as I was not able to > > reproduce with smaller files. The filesystem size is 45GB and file > > size is 10GB. > > > > It should be fixed in 3.1 by this commit: > > commit b6f3409b2197e8fcedb43e6600e37b7cfbe0715b > Author: Sage Weil <sage@xxxxxxxxxxxx> > Date: Tue Sep 20 14:48:51 2011 -0400 > > Btrfs: reserve sufficient space for ioctl clone > > Fix a crash/BUG_ON in the clone ioctl due to insufficient reservation. We > need to reserve space for: > > - adjusting the old extent (possibly splitting it) > - adding the new extent > - updating the inode Thanks Li, You are probably right. I upgraded to 3.2-rc5 today and was not able to reproduce with 100k iterations. Do you think that applying the same patch to 3.0 should fix this issue in 3.0? Nik -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
