Running X with option AccelMethod "none" (possibly also option noaccel) causes segfault if dri3 is enabled: Program received signal SIGSEGV, Segmentation fault. 0x0000000000000000 in ?? () (gdb) bt #0 0x0000000000000000 in ?? () #1 0x00007fc9a1c87db8 in amdgpu_dri3_pixmap_from_fd (screen=0x561f9d7c1e40, fd=26, width=16, height=<optimized out>, stride=128, depth=<optimized out>, bpp=32 ' ') at ../../src/amdgpu_dri3.c:149 #2 0x0000561f9c32d289 in dri3_pixmap_from_fd (ppixmap=ppixmap@entry=0x7ffc1c145628, screen=<optimized out>, fd=fd@entry=26, width=<optimized out>, height=<optimized out>, stride=128, depth=24 '\030', bpp=32 ' ') at ../../dri3/dri3_screen.c:73 #3 0x0000561f9c32cdfa in proc_dri3_pixmap_from_buffer (client=0x561f9dc17e50) at ../../dri3/dri3_request.c:162 #4 0x0000561f9c1fe12e in Dispatch () at ../../dix/dispatch.c:430 #5 0x0000561f9c201ecb in dix_main (argc=5, argv=0x7ffc1c145808, envp=<optimized out>) at ../../dix/main.c:300 #6 0x00007fc9a50baead in __libc_start_main (main=<optimized out>, argc=<optimized out>, ubp_av=<optimized out>, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc1c1457f8) at libc-start.c:244 #7 0x0000561f9c1ec6b1 in _start () The offending line seems to be if (screen->SetSharedPixmapBacking(pixmap, (void*)(intptr_t)fd)) return pixmap; Version info: Xorg 1.18, amdgpu git a3eac85d
*** Bug 94224 has been marked as a duplicate of this bug. ***
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