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Date:      Mon, 28 Dec 2009 17:23:14 -0600
From:      Robert Noland <rnoland@FreeBSD.org>
To:        "Carlos A. M. dos Santos" <unixmania@gmail.com>
Cc:        freebsd-x11@freebsd.org
Subject:   Re: x11perf -all leads to Xorg crash on 8-STABLE
Message-ID:  <1262042594.2314.9.camel@balrog.2hip.net>
In-Reply-To: <e71790db0912281450l57fe983atba561ea254a5b9e0@mail.gmail.com>
References:  <e71790db0912261431h7285eeb4yeb1f648694730b@mail.gmail.com> <e71790db0912270917n4ccdb185pe65f2f5c4f30ea0c@mail.gmail.com> <1261934521.2220.2834.camel@balrog.2hip.net> <e71790db0912270941hdd0bc04oe3c66a81b663f6eb@mail.gmail.com> <1261942898.2220.2976.camel@balrog.2hip.net> <e71790db0912271633q5178b868u26514a7e1ba6ec87@mail.gmail.com> <e71790db0912271735h7a3f7096rdad098e2f945243a@mail.gmail.com> <1261972205.2220.3468.camel@balrog.2hip.net> <e71790db0912280728l59a80c86rc76a3e760b5a21d7@mail.gmail.com> <1262023342.30049.3.camel@balrog.2hip.net> <e71790db0912281450l57fe983atba561ea254a5b9e0@mail.gmail.com>

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On Mon, 2009-12-28 at 20:50 -0200, Carlos A. M. dos Santos wrote:
> On Mon, Dec 28, 2009 at 4:02 PM, Robert Noland <rnoland@freebsd.org> wrote:
> > On Mon, 2009-12-28 at 13:28 -0200, Carlos A. M. dos Santos wrote:
> [...]
> >>
> >> Updating pixman did not help:
> >>
> >> Program received signal SIGSEGV, Segmentation fault.
> >> 0x000000080107d215 in pixman_blt_sse2 (src_bits=0x81364f000,
> >> dst_bits=0x804200000, src_stride=2400, dst_stride=4096, src_bpp=32,
> >> dst_bpp=32, src_x=576, src_y=576, dst_x=3, dst_y=3, width=10,
> >> height=9)
> >>     at pixman-sse2.c:5358
> >> 5358              *(uint32_t *)d = *(uint32_t *)s;
> >> (gdb) print d
> >> $26 = (uint8_t *) 0x80420300c "���"
> >> (gdb) print s
> >> $27 = (uint8_t *) 0x8137a1100 <Error reading address 0x8137a1100: Bad address>
> >
> > Ok, following the math in pixman... I don't quite see how this happens.
> > Are you using any unusual compiler optimizations?
> 
> There are no unusual settings. It is a raw 8-STABLE/AMD64 system,
> built from the sources. The only ports installed are xorg-server,
> x11perf, vim-lite and the ports they depend on.
> 
> > I just tested this with pixman-0.16.0 from ports and xserver 1.7.3 with
> > nouveau and it does not kill the server.  I'm not sure that the output
> > is correct, but it does complete without error.
> 
> Are you using i386 or AMD64? I some spare GPT partitions on which I
> will install 8-STABLE/i386 and run the tests again.

This is amd64 w/ SIMD enabled.

robert.

-- 
Robert Noland <rnoland@FreeBSD.org>
FreeBSD




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