<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - GPU HANG: ecode 7:0:0xab0f77f9, in Xorg [1348], reason: Hang on rcs0, action: reset" href="https://bugs.freedesktop.org/show_bug.cgi?id=104401#c11">Comment # 11</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - GPU HANG: ecode 7:0:0xab0f77f9, in Xorg [1348], reason: Hang on rcs0, action: reset" href="https://bugs.freedesktop.org/show_bug.cgi?id=104401">bug 104401</a> from <a class="email" href="mailto:freedesktop@scarsita.it" title="Luca Bonissi <freedesktop@scarsita.it>"> Luca Bonissi</a> <pre>(In reply to Lakshmi from <a href="show_bug.cgi?id=104401#c10">comment #10</a>) > > From the attached logs, I don't see GPU hang messages. Attached crash dump > is from kernel 4.13. > > So, the system hangs/frozen with latest kernel? >From kernel 4.7.3 the system hangs/frozen nearly one a day (it usually hangs during the night, when DPMS switched off the monitor), so it hangs also with the latest kernel 5.0.4. Unfortunately, only 1 time (with kernel 4.13) the system did not freeze and I could get the GPU crash dump. Also another system, with Intel N2840 CPU and the same integrated GPU, suffers the same problem (I lost some audio recording data due to the bug....). If I disabled DPMS, no problems occurred. Anyway, the problem is identified somewhere in the "HPD polling" routines, introduced in kernel 4.7.3: if I remove these routines, the system works fine without any hangs (neither GPU nor totally). It seemed something with mutex (try to lock when already locked...), but I am not a mutex/GPU expert....</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>