Salut Olivier, It appears that this bug has been fixed in 2.6.12. Perhaps you can confirm this?
I will amend the getitimer.2 man page note that the bug goes away with 2.6.12. Chers, Michael > --- Ursprüngliche Nachricht --- > Von: "Michael Kerrisk" <[EMAIL PROTECTED]> > An: Olivier Croquette <[EMAIL PROTECTED]> > Kopie: Nishanth Aravamudan <[EMAIL PROTECTED]> > Betreff: Re: Man page corrections > Datum: Mon, 13 Jun 2005 10:59:19 +0200 (MEST) > > Salut Olivier (and Nishanth), > > Regarding man page documentation of the problem of short sleeps > for setitimer(2)... > > > > -- pointers to those threads > > > > http://bugzilla.kernel.org/show_bug.cgi?id=4569 > > http://lkml.org/lkml/2005/4/29/163 > > > > > -- indications of which kernel versions show this bahaviour > > > > AFAIK, all versions as far as x86 is concerned. > > Dunno if it is hardware specific. > > > > > -- a (short) test program to demonstrate it, if you have one. > > > > See the bugzilla bug's attachments > > Sorry for the long delay in following this up, but I've got to > it now. I tweaked your suggestions slightly: > > {{ > Timers will never expire before the requested time, > -instead expiring some short, constant time afterwards, dependent > -on the system timer resolution (currently 10ms). > +but may expire some (short) time afterwards, which depends > +on the system timer resolution and on the system load. > +Upon expiration, a signal will be generated and the timer reset. > +If the timer expires while the process is active (always true for > > +On certain systems (including x86), the Linux kernel has a bug which > will > +produce premature timer expirations of up to one jiffy under some > +circumstances. > }} > > Thanks for this bug report; the changes will appear in > man-pages-2.04. > > Nishanth: if and when your changes are accepted, and the problem > is thus fixed, could you please send me a notification of that > fact, and I can then further amend the manual pages. > > Cheers, > > Michael -- Weitersagen: GMX DSL-Flatrates mit Tempo-Garantie! Ab 4,99 Euro/Monat: http://www.gmx.net/de/go/dsl -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
