<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - GPU hang occurs when running multi-encoders(h264) on haswell platform" href="https://bugs.freedesktop.org/show_bug.cgi?id=104748#c6">Comment # 6</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - GPU hang occurs when running multi-encoders(h264) on haswell platform" href="https://bugs.freedesktop.org/show_bug.cgi?id=104748">bug 104748</a> from <a class="email" href="mailto:elizabethx.de.la.torre.mena@intel.com" title="Elizabeth <elizabethx.de.la.torre.mena@intel.com>"> Elizabeth</a> <pre>(In reply to Elizabeth from <a href="show_bug.cgi?id=104748#c5">comment #5</a>) > *** <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED DUPLICATE - GPU hang occurs when encoding.the platform is haswelll" href="show_bug.cgi?id=104747">Bug 104747</a> has been marked as a duplicate of this bug. *** (In reply to zhoubo from <a href="show_bug.cgi?id=104748#c3">comment #3</a>) > (In reply to Elizabeth from <a href="show_bug.cgi?id=104748#c1">comment #1</a>) > > Hello Zhoubo. If reproducible, could you try a more recent kernel > > <a href="https://www.kernel.org">https://www.kernel.org</a>? Thanks. > > I find the reason cause gpu hang may be encode rate control mode. > First I choose VBR mode, gpu hang occurs in most 10 mins. > Then I choose CBR mode, gpu hang doesn't occur again. > I find some difference in i965 driver, but I don't confirm which one is the > bug. > > START: 0x00312000 > HEAD: 0x02006e30 > TAIL: 0x00008848 > CTL: 0x0001f001 > HWS: 0x00311000 > ACTHD: 0x00000000 6a934b44 > IPEIR: 0x00000000 > IPEHR: 0x71000007 > INSTDONE: 0xffdcffff > BBADDR: 0x00000000 6a934b45 > BB_STATE: 0x00000120 > INSTPS: 0x80000208 > INSTPM: 0x00006080 > FADDR: 0x00000000 6a934d00 > > according to the gpu hang info, I found "IPEHR: 0x71000007" means the gpu > was hang at this address. And I found the param might be error in function > "gen75_mfc_batchbuffer_emit_object_command" or > "gen75_vme_fill_vme_batchbuffer" because of "*command_ptr++ = > (CMD_MEDIA_OBJECT | (9 - 2))". > > So I think the reason may be some param different in CRB and VBR, and it > lead to different in cmd "CMD_MEDIA_OBJECT", finally gpu hang occured. > Is this right? > If it's right ,could you help me find which is the bug ? Hello Zhoubo, I believe both bugs have the same root cause, that's why I marked them as duplicated. According to your logs, your using a 4.8 kernel while actual stable release is 4.14+, so issue could be already fixed by any recent commit. Could you please try 4.14+ or drm-tip kernels. Also you may want to visit <a href="https://01.org/linuxgraphics/community">https://01.org/linuxgraphics/community</a> and give a try do the dev-community in irc to consult about you issue.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>