From mboxrd@z Thu Jan 1 00:00:00 1970 From: tab@snarc.org (Vincent Hanquez) Subject: Re: unstable binaries Date: Tue, 15 Mar 2005 20:16:35 +0100 Message-ID: <20050315191635.GA12564@snarc.org> References: <20050304132938.GB3382@gandalf.intern.marcant.net> <20050307204720.GA10159@gandalf.intern.marcant.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050307204720.GA10159@gandalf.intern.marcant.net> Sender: xen-devel-admin@lists.sourceforge.net Errors-To: xen-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: nils toedtmann Cc: Ian Pratt , Robin Green , xen-devel@lists.sourceforge.net List-Id: xen-devel@lists.xenproject.org On Mon, Mar 07, 2005 at 09:47:20PM +0100, nils toedtmann wrote: > Ok, after lots of compiling, rebooting & testing, i got this picture: > > The error "wget: retr.c:293: calc_rate: Assertion `msecs >= 0' failed." > is still present with xen-2.0-testing ("ChangeSet@1.1755, 2005-03-04 > 00:57:22"), but now i have to trigger them by higher load. I was not > able to reproduce it on a vanilla kernel with same config (besides > ARCH specific options). > <<>> > nanosleep02 1 FAIL : Remaining sleep time 4010000 usec doesn't match with the expected 3999236 usec time > nanosleep02 1 FAIL : child process exited abnormally > incrementing stop > <<>> > duration=1 termination_type=exited termination_id=1 corefile=no > cutime=0 cstime=0 > <<>> the failure is just a precision range problem. increasing the nanosleep USEC_PRECISION to 10 times more make the test suceed. Now running with HZ = 1000 make the precision problem disappear (at the expense of awakening the test 700ns too soon and still failing ..) Could you try running with HZ = 1000 to see if there are still problems with your programs ? Also the strace output of the wget program failing might be handy to know if there's a link with nanosleep at least. -- Vincent Hanquez ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click