----- Sebastian Ramacher <sramac...@debian.org> a écrit : > Control: forwarded -1 https://github.com/intel/media-driver/issues/1081 > Control: tags -1 = upstream > > On 2020-11-14 23:16:35 +0100, Christophe CURIS wrote: > > Package: intel-media-va-driver > > Version: 20.3.0+dfsg1-1 > > Severity: important > > Tags: ftbfs > > > > Dear Maintainer, > > > > Since my latest debian update, VLC is crashing when playing video with the > > message: > > Illegal instruction > > > > After a bit of debug in GDB, I have confirmed that the crash comes from: > > /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so > > > > (gdb) bt > > #0 0x00007fffa133ba6b in ?? () from > > /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so > > #1 0x00007fffa133bb8f in ?? () from > > /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so > > #2 0x00007fffa133b2c8 in ?? () from > > /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so > > #3 0x00007fffa133bc67 in ?? () from > > /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so > > #4 0x00007fffa1342a05 in ?? () from > > /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so > > #5 0x00007fffa12c6597 in ?? () from > > /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so > > #6 0x00007fffac244e86 in ?? () from /usr/lib/x86_64-linux-gnu/libva.so.2 > > #7 0x00007fffac245feb in vaInitialize () from > > /usr/lib/x86_64-linux-gnu/libva.so.2 > > > > I am suspecting it is because the package is compiled from a very recent > > architecture > > (i7 with sse4.1 explicitely enabled) which my processor does not support. > > That means that you're CPU/GPU is too old and is not supported by > intel-media-driver. As a workaround, you can set the environment > variable LIBVA_DRIVER_NAME to i915 (or remove intel-media-va-driver from > your system). But in any case, the driver should > at least bail out if it detects an unsupported platform before running > into illegal instructions. This is currently tracked upstream at > https://github.com/intel/media-driver/issues/1081
Hi Sebastian, Thanks for your feedback. On my side, I have continued investigations and managed to compile something. Good news: it looks like it is working now (Well, I mean apps not crashing). I had a quick look, it seems impossible to remove this package due to dependancies. Maybe I would have more luck with the "-non-free" alternative but I seriously doubt. On your side, what would be good behaviour if I tryed to propose a patch? My current patch is an "ugly hack" that replaces one SSE4.1 instruction by its SSE2 counterpart and changes the "-m" settings (-march=, -msseXX) I consider this not ok for the general use, so there could be tradeoffs... > > Cheers > > > > > > I have tryed compiling the package from source, but after tweaking the > > flags to > > set -march=native, the compilation fails: > > > > In file included from > > [...]/intel-media-driver-20.3.0+dfsg1/media_driver/linux/common/cm/hal/cm_mem_os.h:30, > > from > > [...]/intel-media-driver-20.3.0+dfsg1/media_driver/agnostic/common/cm/cm_mem.h:128, > > from > > [...]/intel-media-driver-20.3.0+dfsg1/media_driver/agnostic/common/cm/cm_buffer_rt.cpp:33: > > /usr/lib/gcc/x86_64-linux-gnu/10/include/smmintrin.h: In function ‘void > > CmFastMemCopyFromWC(void*, const void*, size_t, CPU_INSTRUCTION_LEVEL)’: > > /usr/lib/gcc/x86_64-linux-gnu/10/include/smmintrin.h:582:1: error: inlining > > failed in call to ‘always_inline’ ‘__m128i > > _mm_stream_load_si128(__m128i*)’: target specific option mismatch > > 582 | _mm_stream_load_si128 (__m128i *__X) > > | ^~~~~~~~~~~~~~~~~~~~~ > > In file included from > > [...]/intel-media-driver-20.3.0+dfsg1/media_driver/agnostic/common/cm/cm_mem.h:128, > > from > > [...]/intel-media-driver-20.3.0+dfsg1/media_driver/agnostic/common/cm/cm_buffer_rt.cpp:33: > > [...]/intel-media-driver-20.3.0+dfsg1/media_driver/linux/common/cm/hal/cm_mem_os.h:201:53: > > note: called from here > > 201 | xmm3 = _mm_stream_load_si128(mmSrc + 3); > > | ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~ > > > > I am wondering what would be a good solution to at least avoid crashes... > > > > > > Regards, > > Christophe > > > > -- System Information: > > Debian Release: bullseye/sid > > APT prefers testing > > APT policy: (500, 'testing') > > Architecture: amd64 (x86_64) > > Foreign Architectures: i386 > > > > Kernel: Linux 5.2.0-2-amd64 (SMP w/2 CPU threads) > > Kernel taint flags: TAINT_WARN > > Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set > > Shell: /bin/sh linked to /bin/dash > > Init: systemd (via /run/systemd/system) > > LSM: AppArmor: enabled > > > > Versions of packages intel-media-va-driver depends on: > > ii libc6 2.30-4 > > ii libgcc-s1 10.2.0-16 > > ii libigdgmm11 20.3.2+ds1-1 > > ii libstdc++6 10.2.0-16 > > ii libva2 [libva-driver-abi-1.9] 2.9.0-1 > > > > intel-media-va-driver recommends no packages. > > > > intel-media-va-driver suggests no packages. > > > > -- no debconf information > > -- > Sebastian Ramacher
