Nik Markovic wrote: > 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? > yes, it should be fine. -- 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
