http://bugzilla.kernel.org/show_bug.cgi?id=14972 Summary: [regression] msync() call on ext4 causes disk thrashing Product: File System Version: 2.5 Kernel Version: 2.6.32.2 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: ext4 AssignedTo: fs_ext4@xxxxxxxxxxxxxxxxxxxx ReportedBy: t.artem@xxxxxxxxxxxx Regression: Yes Created an attachment (id=24398) --> (http://bugzilla.kernel.org/attachment.cgi?id=24398) run this way ./test test.txt 100 The attached application causes useless disk thrashing in case of ext4, but works normally in case of ext3 (and possibly other FS's). msync() for unchanged mmap'ed files shouldn't cause disk/HDD activity which I do observe. -- 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
