http://bugzilla.kernel.org/show_bug.cgi?id=15420 Summary: EXT4_USE_FOR_EXT23 causes wrong free space calculation on ext2 and ext3 Product: File System Version: 2.5 Kernel Version: 2.6.33 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: ext4 AssignedTo: fs_ext4@xxxxxxxxxxxxxxxxxxxx ReportedBy: thomas@xxxxxxxxxxxxx Regression: No When enabling the EXT4_USE_FOR_EXT23 option in 2.6.33. The free space calculation on ext2 and ext3 becomes incorrect. Steps to reproduce: 1) Create ext2 or ext3 file system with mkfs 2) Mount it on a kernel with EXT4_USE_FOR_EXT23 enabled 3) Launch "watch -n1 df -h /path/to/mountpoint" in another terminal 4) Download a file with wget The "used space" on the ext2/3 will now increase by about 500MB per second. Once you stop the download and type "sync" (or wait for a while), the values shown for free/used space return to expected values. This is always reproducible. We can reproduce this on x86_32 and x86_64 with the Arch Linux distribution kernel, as well as my own personal Core2-optimized 64 Bit kernel. .config x86_32: http://repos.archlinux.org/wsvn/packages/kernel26/trunk/config?rev=70484 .config x86_64: http://repos.archlinux.org/wsvn/packages/kernel26/trunk/config.x86_64?rev=70484 -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
