I strongly suspect this is the same bug in upstream kernel v4.15, which
causes this issue:


I am basing this on the "signal 7" (SIGBUS), as this is relatively rare
on x86 [1].  Also that it occurs inside xorg_backtrace() - this is also
*supposed* to be relatively rare, because libunwind tries to use a
clever trick to avoid reading wild pointers and dying with a
segmentation fault [2].

[1] https://stackoverflow.com/questions/2089167/debugging-sigbus-on-x86-linux
[2] https://lwn.net/Articles/502864/

I would also predict that the original fault was caused by fetching the
first instruction of the function, but it looks like we don't have the
symbol information for it.  (boo, nvidia).

You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.

  Xorg crashed with signal 7 in dl_new_hash()

To manage notifications about this bug go to:

ubuntu-bugs mailing list

Reply via email to