From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Serge E. Hallyn" Subject: Re: Segmentation fault @ checkpoint Date: Wed, 13 May 2009 16:37:03 -0500 Message-ID: <20090513213703.GA23429@us.ibm.com> References: <5B2F91AA-3148-4E5A-A464-773BE9B1E5CE@uni-duesseldorf.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <5B2F91AA-3148-4E5A-A464-773BE9B1E5CE-4bfl1RV3iZDOEhgYWvzSCYQuADTiUCJX@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Ralph-Gordon Paul Cc: containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org List-Id: containers.vger.kernel.org Quoting Ralph-Gordon Paul (Ralph-Gordon.Paul-4bfl1RV3iZDOEhgYWvzSCYQuADTiUCJX@public.gmane.org): > Hi, > > i'm trying out the checkpointer (version 15 from http://git.ncl.cs.columbia.edu/?p=linux-cr.git;a=shortlog;h=refs/heads/ckpt-v15) > . > > i used the the example programs at the checkpointer documentation: > test.c and ckpt.c (i had to add #define __NR_checkpoint 333) > > after compilation i tried: > ./test & > kill -STOP 3058 3058 = PID from test > ./ckpt 3058 > ckpt.image > > now i get a Segmentation fault (it's at the syscall(__NR_checkpoint. > pid, STDOUT_FILENO, 0) line). Hi Gordon, Just to make sure, did you check out the v15-dev branch of user-cr? By default you get the v14 branch which is not compatible. I suspect you're using v14 becaues sys_checkpoint is being called with flags 0, not 4, which is (now) wrong. thanks, -serge > dmesg: > [ 3948.213442] ckpt[3218]: segfault at 46 ip b7e1213d sp bf835e18 > error 4 in libc-2.7.so[b7db4000+155000] > > Any idea what may be the problem? > Do i have a problem with my libc? > > My System spec: > Debian 5.0 i686 > CPU: AMD Athlon XP 2000+ > > Regards, > Gordon > _______________________________________________ > Containers mailing list > Containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org > https://lists.linux-foundation.org/mailman/listinfo/containers