-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 4/26/2012 2:38 PM, John Morris wrote: > The commit where the problem begins is > 8868436313c34eaf60a14f5c930f0f2035b9ee48. > > After saying this was not a problem I introduced, I'm not so sure > anymore. The biggest hunk of the forward-ported patches that > originated with me changes rtapi/linux_common.h to compile with > this commit, where function prototypes for realtime motion > messaging change. It's broken out into linux_common.h.patch in > the tarball linked below. > > Here's a recipe to demonstrate the problem's non-existence in the > previous commit and the problem's existence in the following > commit. It's not well-tested, and it WILL FAIL if you just try to > source it from a shell. Otherwise it should be easy to follow and > reproduce. Unpack this into /tmp, probably, and look at the > README: > > http://www.zultron.com/static/2012/04/linuxcnc-bitmuster-bisect.tgz >
I > have been unable to figure out the problem, but I can replicate your results here. The previous commit works, while this one fails. I did try running under valgrind and with MALLOC_CHECK_ set to 3, but didn't get anything useful (to my eyes, anyway). Interestingly, I did seem to get slightly different behavior when running under valgrind with the memorytest, but nothing that really points a finger at what might be wrong. It's possible there's some timing related problem, but I suspect what's happening is valgrind is changing the system behavior with respect to the task that crashes. Mostly I just wanted to report that I can replicate John's results on Debian, even though I haven't made any other progress. - -- Charles Steinkuehler char...@steinkuehler.net -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk+bB9wACgkQLywbqEHdNFywlgCfd7cj2YoBCuQOh2xwODPDYwkK J0cAnAjjUVy5UCZ84YwAiFAeT8t2Gg3N =c6gp -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
