Hi, Thank you for sharing the great debugging tool.
When I tried to run mozilla thunderbird mail client, which I create under Debian GNU/Linux 64-bit, under valgrind, valgrind mysteriously crashed and gdb was not much help. This happened under the latest 4.8.x kernel which Debian distributed as part of its testing repository. I tried a few things but subsequently reverted to kernel 3.19.5. Now thunderbird under valgrind works (!). The following is an excerpt from a post that I sent to developer mailing list of mozilla thunderbird. If the symptom rings a bell, please let me know. TIA --- begin quote Well the original problem I had: valgrind crashed when I tried to invoke it as part of |make mozmill| test of mozilla thunderbird. It looks that there is a Debign GNU/Linux kernel issue. (It occurred about a couple of years ago in 2015, too.). I was using 4.x series since late last year and valgrind did not work any more, and I reverted back to kernel version 3.19.5.[userland has been upgraded to work with 4.x series, and so I am a little uncomfortable doing this. But, I need valgrind to work for debugging.] Now thunderbird under valgrind works again under 3.19.5 $ uname -a Linux ip030 3.19.5 #1 SMP Mon Apr 20 08:50:21 JST 2015 x86_64 GNU/Linux There is something, about Debian's kernel config, that interferes with the correct valgrind operation. I am not sure what. For those interested: I can send you the config file that Debian used to create these kernel images that Debian officially distributes. On the other hand, if someone uses valgrind on, say, CentOS or Fedora (kernel 4.x series) and can run thunderbird under it succssefully, I would appreciate to look at the config file to create the kernel image there, so I would be able to compare and tinker with the kernel and if I can make the valgrind to run in a modified kernel in Debian GNU/Linux environment. TIA --- end quote ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
