Re: [Valgrind-users] Problem of running mozilla thunderbird under valgrind on Debian GNU/Linux 4.x kernel.

[John R. <jr...@bi...>]

How many failures occur in 10 runs of thunderbird under valgrind?
How many failures occur in 10 runs if you reboot just before each run?

Thunderbird is a user mail agent that uses interactive graphics.
How many failures occur before the display window appears, and how many after?
Are the symptoms and frequency the same for a Radeon card as for NVidia?
On the open-source NVidia driver versus the proprietary driver?
In "dumb framebuffer" mode ("no" acceleration)?
Please tell us which cards: "lspci -nn | grep VGA" or similar.

Are the symptoms and frequency the same for Firefox as for thunderbird?
Are the symptoms and frequency the same for Chrome as for thunderbird?

Please present a histogram of the {mapped file, pc offset, instruction stream}
when the SIGSEGV happens.  [You should have at least 70 runs by now: 10 each
for thunderbird plain, with reboot, other graphics card, other NVidia driver,
dumb framebuffer, Firefox, Chrome.]

thunderbird is not available from the Debian stable "jessie" repository
(Debian 8.7.1, 2017-01-20.)  Where did you get it?

Which kernel modules have been loaded (lsmod)?
Which version(s) of the low-level X11 and display drivers (DRM: direct
rendering manager) are in use?