<div dir="ltr">Hi,<br><div class="gmail_extra"><br><div class="gmail_quote">2017-12-06 19:18 GMT+01:00 Andreas Beckmann <span dir="ltr"><<a href="mailto:anbe@debian.org" target="_blank">anbe@debian.org</a>></span>:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><span class="gmail-">On 2017-12-06 18:39, Julien Aubin wrote:<br>
> Raised issue #883705 as it is actually a libc6 regression (it may affect<br>
> other apps actually).<br>
<br>
</span>I tried to set a title for that bug (it had none), but maybe you can<br>
describe it even better?<br></blockquote><div><br></div><div>The title I've set is :</div><div> libc6: 2.24-11+deb9u2 breaks Nvidia's GLX X module on Pascal GPU</div><div><br></div><div><a href="https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=883705">https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=883705</a><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
Just to verify: if you downgrade libc6 to 2.24-11+deb9u1 everything is<br>
working properly again?<br></blockquote><div><br></div><div>Yup I confirm that if you downgrade all is working properly again.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
My guess is that it is not related to the nvidia driver at all (except<br>
for utilizing a certain code path in glibc), but to your CPU and the<br>
optimized glibc routines used for it ...<br>
<br>
So try touching the file /etc/ld.so.nohwcap - hopefully glibc will stop<br>
using any optimized code for your cpu. If this works (and the glx module<br>
works agian afterwards), we are moving into the right direction.<br></blockquote><div><br></div><div>I guess the same, some optimization introduced in the makefile which triggers a different compilation path. </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<span class="gmail-HOEnZb"><font color="#888888"><br>
<br>
Andreas<br>
</font></span></blockquote></div><br></div></div>