Date: Fri, 5 Sep 2014 22:40:28 +0700 From: Alexey Dokuchaev <danfe@nsu.ru> To: x11@freebsd.org Subject: OpenGL apps segfault on -CURRENT (vt+i915kms.ko) with i5-3470 Message-ID: <20140905154028.GA70757@regency.nsu.ru>
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Hi there,
Running today's -CURRENT/i386 with vt(4) on i5-3470 (internal video), with
xorg-server-1.12.4_8, any OpenGL program segfaults almost immediately.
I've rebuilt fresh `graphics/dri' with -g, here's some scarce brainfood:
$ gdb -c a.out.core a.out
...
#0 0x284b82b6 in brw_workaround_depthstencil_alignment (brw=0x28c8c018)
at brw_misc_state.c:886
886 if (!ctx->Line.SmoothFlag || !brw->has_aa_line_parameters)
[New Thread 28c03080 (LWP 100260/a.out)]
(gdb) l
881 static void upload_aa_line_parameters(struct brw_context *brw)
882 {
883 struct intel_context *intel = &brw->intel;
884 struct gl_context *ctx = &brw->intel.ctx;
885
886 if (!ctx->Line.SmoothFlag || !brw->has_aa_line_parameters)
887 return;
888
889 if (intel->gen == 6)
890 intel_emit_post_sync_nonzero_flush(intel);
(gdb) p ctx
$1 = (struct gl_context *) 0x28c8c018
(gdb) p brw
$2 = (struct brw_context *) 0x28c8c018
(gdb) p ctx->Line.SmoothFlag
$3 = 0 '\0'
(gdb) p brw->has_aa_line_parameters
$4 = true
Any ideas?
./danfe
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