https://bugzilla.kernel.org/show_bug.cgi?id=48751 Summary: ext3: ctime changes with no reason in 30 seconds after a file change Product: File System Version: 2.5 Kernel Version: 3.2+, maybe 3.1 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: ext3 AssignedTo: fs_ext3@xxxxxxxxxxxxxxxxxxxx ReportedBy: pv4@xxxxx Regression: Yes Created an attachment (id=83411) --> (https://bugzilla.kernel.org/attachment.cgi?id=83411) Details I've caught an issue slightly similar to the one discussed at http://git.661346.n2.nabble.com/BUG-Working-tree-getting-out-of-date-quot-spontaneously-quot-td3029928.html but in my case the issueexists if mounting ext3 partition using native ext3 module, not ext3 mode of ext4 module. How to reproduce: I'm sorry I haven't found an easier way to reproduce the issue. I hope the issue is obvious enough for those who works on ext2/3/4 modules to understand and fix it using the strace and stat output provided. Steps 2 and 3 are just preparations, the actual issue appears in step 4. 1. Have an ext3 partition mounted using the native ext3 module (mounting ext3 partition using ext4 module works fine but it has different issues so I cannot use it). I tested both slackware-14 (32bit) default kernel and the 3.6.1 from www.kernel.org. 2. Download and unpack glibc-2.16.0.tar.xz from ftp.gnu.org, build it using ./configure --prefix=/usr && make 3. rm -rf /tmp/a && mkdir /tmp/a 4. make install_root=/tmp/a localedata/install-locales During this step /tmp/a/usr/lib/locale/locale-archive is created and modified which we have the problem with. 5. Wait until 1-2 locale names are printed to the console (it takes about 5 seconds) and press Ctrl+C (not pressing Ctrl+C also causes the issue to happed but requires much more time to finish). 6. stat /tmp/a/usr/lib/locale/locale-archive to see the current status 7. wait ~30-40 seconds 8. stat /tmp/a/usr/lib/locale/locale-archive to see the changed "Change time" and "Blocks" Sometimes the issue is not reproducable. But 3 runs of steps 3-8 always reproduce the issue for me at least once. Affected versions: 3.2 or above (3.6.1 is still as well) 3.0 is not affected 3.1 cannot test 3.1 right now to tell you whether it's affected or not. If it really matters, tell me and I'll test it ASAP. Attachment archive contents: filesystems : /proc/filesystems modules : /proc/modules mounts : /proc/mounts process-list : ps auxww stat : stat results strace : strace -fo strace make install_root=/tmp/a localedata/install-locales tune2fs-l : tune2fs -l version : /proc/version -- Configure bugmail: https://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
