On Mon, 07 Jul 2008 11:12:18 +0200 mail@xxxxxxxxxxxxxxxx (Roberto Ragusa) wrote: > Hi, > > my root filesystem is mounted with the option relatime for > some reason (I just have defaults in /etc/fstab). > > Any attempt to temporarily disable the option fails, > even with norelatime, which appears to be a valid option. > Is this expected or a bug? > > (fedora 9 with 2.6.25.3-18) > > [root@thinkpad ~]# cat /proc/mounts |grep /dev/root > /dev/root / reiserfs rw,relatime 0 0 > [root@thinkpad ~]# mount / -o remount,norelatime > [root@thinkpad ~]# cat /proc/mounts |grep /dev/root > /dev/root / reiserfs rw,relatime 0 0 > [root@thinkpad ~]# mount / -o remount,atime > [root@thinkpad ~]# cat /proc/mounts |grep /dev/root > /dev/root / reiserfs rw,relatime 0 0 > [root@thinkpad ~]# mount / -o remount,noatime > [root@thinkpad ~]# cat /proc/mounts |grep /dev/root > /dev/root / reiserfs rw,noatime,relatime 0 0 > [root@thinkpad ~]# mount / -o remount,atime > [root@thinkpad ~]# cat /proc/mounts |grep /dev/root > /dev/root / reiserfs rw,relatime 0 0 > [root@thinkpad ~]# mount / -o remount,nonononononorelatime > mount: / not mounted already, or bad option > Yeah, confusingly that doesn't work. You have to: echo 0 > /proc/sys/fs/default_relatime and then mount/remount with 'atime' and it should work. Even the patch in the kernel src.rpm has incorrect docs on it. kevin
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