Hello Karel, The proposed patch for ionice manpage was fine. Reading the url I quoted in the first place, i wondered if we could add a few word regarding the lock issue. > http://ubuntuforums.org/archive/index.php/t-498394.html I propose something like this (but feel free to rewrite it): A process of class "Idle" shouldn't be used to access files which could also be used by a process of higher priority : if a third process keeps the IO system busy, the idle process would hold the file locked. Therefore the process with higher priority could be waiting for the locked file forever. Franklin On Thu, 2007-09-20 at 14:38 +0200, Karel Zak wrote: > On Sun, Sep 16, 2007 at 09:38:41PM +0200, Franklin PIAT wrote: > > Could you update the ionice manpage (or release notes) > > to mention that regular user can't schedule a task with > > an "idle" class. A typical example is: > > Well, see a patch below. OK? > > diff --git a/schedutils/ionice.1 b/schedutils/ionice.1 > -class does not take a priority argument. > +class does not take a priority argument. This scheduling class is not > +permitted for an ordinary (i.e., non-root) user. > - To unsubscribe from this list: send the line "unsubscribe util-linux-ng" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html