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Message-Id: <201001021510.o02FA4bL006185@demeter.kernel.org> Date: Sat, 2 Jan 2010 15:10:04 GMT From: bugzilla-daemon@...zilla.kernel.org To: linux-ext4@...r.kernel.org Subject: [Bug 14972] [regression] msync() call on ext4 causes disk thrashing http://bugzilla.kernel.org/show_bug.cgi?id=14972 --- Comment #3 from Artem S. Tashkinov <t.artem@...lcity.com> 2010-01-02 15:10:03 --- (In reply to comment #2) > Regression from what? Ext3? Or some earlier kernel version? Regression from ext3. > > What arguments are you giving to this test program of yours? It looks like it > does some number of reads and/or writes to the file, and then calls 10,000 > msyncs with 50ms wait between each msync. While doing those msync()s mmap file is unchanged, but ... > > I'm not seeing any disk activity as a result. Was anything else reading or > writing to the file or to the file system at the same time? ... my HDD led keeps flashing continuously which certainly means some disk activity. Should I attach a video showing this abnormality on kernel 2.6.32.2 on runlevel 1 with no application running except bash and this application? -- 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@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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