Package: intel-media-va-driver Version: 22.4.3+dfsg1-1 Severity: normal Hi all, on my system when I try to play an H.264 file with VLC, it crashes with a Segmentation Fault in iHD_drv_video.so. With debug symbols, the stack trace reported by gdb is:
#0 mos_bo_wait_rendering(mos_linux_bo*) (bo=0x0) at ./media_driver/linux/common/os/i915/mos_bufmgr_api.c:138 #1 0x00007fff15a4e3b1 in DdiMediaDecode::CreateBuffer(VABufferType, unsigned int, unsigned int, void*, unsigned int*) (this=0x7fff543aab10, type=VASliceDataBufferType, size=<optimized out>, numElements=1, data=0x7fffc019dc73, bufId=0x7fff65f49a9c) at ./media_driver/linux/common/codec/ddi/media_ddi_decode_base.cpp:1099 #2 0x00007fff15a0e279 in DdiMedia_CreateBuffer(VADriverContext*, unsigned int, VABufferType, unsigned int, unsigned int, void*, unsigned int*) (bufId=0x7fff65f49a9c, data=0x7fffc019dc73, num_elements=1, size=16175, type=VASliceDataBufferType, context=268435456, ctx=0x7fff54237160) at ./media_driver/linux/common/ddi/media_libva.cpp:3247 #3 DdiMedia_CreateBuffer(VADriverContext*, unsigned int, VABufferType, unsigned int, unsigned int, void*, unsigned int*) (ctx=0x7fff54237160, context=268435456, type=VASliceDataBufferType, size=16175, num_elements=1, data=0x7fffc019dc73, bufId=0x7fff65f49a9c) at ./media_driver/linux/common/ddi/media_libva.cpp:3215 #4 0x00007fff6c193193 in vaCreateBuffer () at /lib/x86_64-linux-gnu/libva.so.2 #5 0x00007fff4074cb85 in () at /usr/lib/x86_64-linux-gnu/vdpau/libvdpau_va_gl.so.1 #6 0x00007fff4074d2ac in () at /usr/lib/x86_64-linux-gnu/vdpau/libvdpau_va_gl.so.1 #7 0x00007fff4074d879 in () at /usr/lib/x86_64-linux-gnu/vdpau/libvdpau_va_gl.so.1 #8 0x00007fff6e911808 in () at /lib/x86_64-linux-gnu/libavcodec.so.59 #9 0x00007fff6e911c68 in () at /lib/x86_64-linux-gnu/libavcodec.so.59 #10 0x00007fff6e4b25e6 in () at /lib/x86_64-linux-gnu/libavcodec.so.59 #11 0x00007fff6e4c78e1 in () at /lib/x86_64-linux-gnu/libavcodec.so.59 #12 0x00007fff6e782f3b in () at /lib/x86_64-linux-gnu/libavcodec.so.59 #13 0x00007ffff7f6dd80 in start_thread (arg=0x7fff65f4b640) at pthread_create.c:481 #14 0x00007ffff7e81baf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 I interpret this as "buf->bo" being NULL on line 1117 in media_ddi_decode_base.cpp: https://github.com/intel/media-driver/blob/a47db3905e6f77b0666c6f10e3b9642cac9fafc8/media_driver/linux/common/codec/ddi/media_ddi_decode_base.cpp#L1117 1115 if( true == buf->bCFlushReq ) 1116 { 1117 mos_bo_wait_rendering(buf->bo); 1118 } Since mos_bo_wait_rendering() is passed the NULL argument, a SIGSEGV is raised when "bo" is dereferenced on line 116 in mos_bufmgr_api_mock.c: https://github.com/intel/media-driver/blob/master/media_driver/linux/ult/libdrm_mock/mos_bufmgr_api_mock.c#L116 114 mos_bo_wait_rendering(struct mos_linux_bo *bo) 115 { 116 bo->bufmgr->bo_wait_rendering(bo); 117 } My system info: CPU: Intel(R) Core(TM) i5-10210U CPU @ 1.60GHz $ vainfo libva info: VA-API version 1.15.0 libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so libva info: Found init function __vaDriverInit_1_14 libva info: va_openDriver() returns 0 vainfo: VA-API version: 1.15 (libva 2.12.0) vainfo: Driver version: Intel iHD driver for Intel(R) Gen Graphics - 22.4.3 () vainfo: Supported profile and entrypoints VAProfileMPEG2Simple : VAEntrypointVLD VAProfileMPEG2Main : VAEntrypointVLD VAProfileH264Main : VAEntrypointVLD VAProfileH264Main : VAEntrypointEncSliceLP VAProfileH264High : VAEntrypointVLD VAProfileH264High : VAEntrypointEncSliceLP VAProfileJPEGBaseline : VAEntrypointVLD VAProfileJPEGBaseline : VAEntrypointEncPicture VAProfileH264ConstrainedBaseline: VAEntrypointVLD VAProfileH264ConstrainedBaseline: VAEntrypointEncSliceLP VAProfileVP8Version0_3 : VAEntrypointVLD VAProfileHEVCMain : VAEntrypointVLD VAProfileHEVCMain10 : VAEntrypointVLD VAProfileVP9Profile0 : VAEntrypointVLD VAProfileVP9Profile2 : VAEntrypointVLD -- System Information: Debian Release: bookworm/sid APT prefers testing-debug APT policy: (500, 'testing-debug'), (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 5.18.0-3-amd64 (SMP w/8 CPU threads; PREEMPT) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_WARN, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Note: my kernel is tainted because I install the ZFS kernel module via zfs-dkms Locale: LANG=C, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages intel-media-va-driver depends on: ii libc6 2.33-8 ii libgcc-s1 12.1.0-7 ii libigdgmm12 22.1.5+ds1-1 ii libstdc++6 12.1.0-7 ii libva2 [libva-driver-abi-1.14] 2.15.0-1 intel-media-va-driver recommends no packages. intel-media-va-driver suggests no packages. -- no debconf information