<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [965gm regression] Black screen when under high load on kernel 3.7 (was OK on 3.6)" href="https://bugs.freedesktop.org/show_bug.cgi?id=56916#c33">Comment # 33</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [965gm regression] Black screen when under high load on kernel 3.7 (was OK on 3.6)" href="https://bugs.freedesktop.org/show_bug.cgi?id=56916">bug 56916</a> from <a class="email" href="mailto:cedric@belbone.be" title="Cedric Godin <cedric@belbone.be>"> Cedric Godin</a> <pre>i will try it asap. I redid several bisects that pointed to bf7ad8eeab995710c766df49c9c69a8592ca0216 is the first bad commit commit bf7ad8eeab995710c766df49c9c69a8592ca0216 Author: Michel Lespinasse <<a href="mailto:walken@google.com">walken@google.com</a>> Date: Mon Oct 8 16:30:37 2012 -0700 rbtree: move some implementation details from rbtree.h to rbtree.c rbtree users must use the documented APIs to manipulate the tree structure. Low-level helpers to manipulate node colors and parenthood are not part of that API, so move them to lib/rbtree.c it seems to not be the culprit but to expose more the bug. The only problem I can see (not a de velopper) is that it changes -static inline void rb_set_parent(struct rb_node *rb, struct rb_node *p) -{ - rb->rb_parent_color = (rb->rb_parent_color & 3) | (unsigned long)p; -} to : +#define rb_color(r) ((r)->__rb_parent_color & 1) ... +static inline void rb_set_parent(struct rb_node *rb, struct rb_node *p) +{ + rb->__rb_parent_color = rb_color(rb) | (unsigned long)p; +} so changing the "& 3" to "& 1". I tried to apply that change to a working kernel but had no crash and reverting it from 3.7 didn't make a stable kernel either.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>