| Summary: | Illegal instruction "pfmul" in Mesa with Intel CPU | ||
|---|---|---|---|
| Product: | Mesa | Reporter: | WuNian <nian.wu> |
| Component: | Mesa core | Assignee: | mesa-dev |
| Status: | RESOLVED DUPLICATE | QA Contact: | |
| Severity: | normal | ||
| Priority: | medium | CC: | haihao.xiang |
| Version: | git | ||
| Hardware: | x86-64 (AMD64) | ||
| OS: | Linux (All) | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
(In reply to comment #1) > dup of bug# 8724? Yes. *** This bug has been marked as a duplicate of bug 8724 *** Mass version move, cvs -> git |
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The "pfmul" is a 3DNow! instruction, Intel chip does not support it. When I run 3D app, it reported "Illegal instruction" for pfmul: Program received signal SIGILL, Illegal instruction. [Switching to Thread 139665477953280 (LWP 6149)] p4_3d_no_rot_loop () at x86-64/xform4.S:245 245 pfmul %mm0, %mm4 /* x1*m11 | x0*m00 */ Current language: auto; currently asm (gdb) bt #0 p4_3d_no_rot_loop () at x86-64/xform4.S:245 #1 0x00007f0666d940f9 in run_vertex_stage (ctx=0xb1e7d0, stage=<value optimized out>) at tnl/t_vb_vertex.c:144 #2 0x00007f0666d8a6bb in _tnl_run_pipeline (ctx=0xb1e7d0) at tnl/t_pipeline.c:158 #3 0x00007f0666d8abe4 in _tnl_draw_prims (ctx=0xb1e7d0, arrays=0xb5b540, prim=0xb59d24, nr_prims=1, ib=0x0, min_index=<value optimized out>, max_index=0) at tnl/t_draw.c:402 #4 0x00007f0666cdd1fc in brw_draw_prims (ctx=0xb1e7d0, arrays=0xb5b540, prim=0xb59d24, nr_prims=1, ib=0x0, min_index=0, max_index=0) at brw_draw.c:434