<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [NV84] Repeated system crashes under graphics load, E[PFIFO] DMA_PUSHER and lots of E[PGRAPH]" href="https://bugs.freedesktop.org/show_bug.cgi?id=70390#c11">Comment # 11</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [NV84] Repeated system crashes under graphics load, E[PFIFO] DMA_PUSHER and lots of E[PGRAPH]" href="https://bugs.freedesktop.org/show_bug.cgi?id=70390">bug 70390</a> from <a class="email" href="mailto:imirkin@alum.mit.edu" title="Ilia Mirkin <imirkin@alum.mit.edu>"> Ilia Mirkin</a> <pre>Perhaps I can interest you in WARN_ON_ONCE. Your code should cover all in-kernel cases, but doesn't being to touch the user-submitted code. Take a look at nouveau_gem_pushbuf_validate for that -- it presently doesn't do any actual data validation. You could also do the check in nv50_dma_push. Basically the main ring buffer just contains pointers to "subrings" (for your generation of card). [As an aside, there are a few other bugs that show attachments that include the same 0x00406040 thing... So you're not the only one seeing it.]</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>