https://bugs.freedesktop.org/show_bug.cgi?id=48305
GitLab Migration User changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
https://bugs.freedesktop.org/show_bug.cgi?id=48305
--- Comment #9 from myxol 2012-04-07 07:28:42 PDT ---
I tried 3 gcc versions.
Flags: -march=native -O2 -ftree-vectorize -ggdb -pipe
4.4.7 - build fails
4.5.3 - original bugreport
4.6.2 - same problem as with 4.5.3
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--- Comment #9 from myxol my...@lavabit.com 2012-04-07 07:28:42 PDT ---
I tried 3 gcc versions.
Flags: -march=native -O2 -ftree-vectorize -ggdb -pipe
4.4.7 - build fails
4.5.3 - original bugreport
4.6.2 - same problem as with 4.5.3
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--- Comment #8 from Michel D?nzer 2012-04-06 04:11:52
PDT ---
Smells more like a compiler bug then. Which version of gcc is this? Does it
also happen with an older one?
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--- Comment #7 from myxol 2012-04-05 17:49:05 PDT ---
> Maybe you can try isolating which specific option implied by -O3 but not by
> -O2 makes the difference.
I tried. It is -ftree-vectorize
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--- Comment #8 from Michel Dänzer mic...@daenzer.net 2012-04-06 04:11:52 PDT
---
Smells more like a compiler bug then. Which version of gcc is this? Does it
also happen with an older one?
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--- Comment #5 from myxol 2012-04-05 05:54:49 PDT
---
Created attachment 59519
--> https://bugs.freedesktop.org/attachment.cgi?id=59519
mesa backtrace
After playing with compilation flags to get meaningful backtrace I found that
this
https://bugs.freedesktop.org/show_bug.cgi?id=48305
--- Comment #6 from Michel D?nzer 2012-04-05 06:48:04
UTC ---
(In reply to comment #5)
> After playing with compilation flags to get meaningful backtrace I found that
> this segfault happens only with -O3? Dunno if this is considered as a bug.
https://bugs.freedesktop.org/show_bug.cgi?id=48305
--- Comment #5 from myxol myxolmyx...@yopmail.com 2012-04-05 05:54:49 PDT ---
Created attachment 59519
-- https://bugs.freedesktop.org/attachment.cgi?id=59519
mesa backtrace
After playing with compilation flags to get meaningful backtrace I
https://bugs.freedesktop.org/show_bug.cgi?id=48305
--- Comment #6 from Michel Dänzer mic...@daenzer.net 2012-04-05 06:48:04 UTC
---
(In reply to comment #5)
After playing with compilation flags to get meaningful backtrace I found that
this segfault happens only with -O3… Dunno if this is
https://bugs.freedesktop.org/show_bug.cgi?id=48305
--- Comment #4 from Alex Deucher 2012-04-04 13:45:21 PDT
---
Make sure you install the debugging symbols for the 3D driver/mesa. Most
distros package these separately. Then when you hit the crash type "bt" in gdb
to get the backtrace.
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--- Comment #3 from myxol 2012-04-04 13:42:36 PDT
---
Created attachment 59492
--> https://bugs.freedesktop.org/attachment.cgi?id=59492
dmesg output
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Alex Deucher changed:
What|Removed |Added
Component|Drivers/DRI/R600|Drivers/Gallium/r600
--- Comment #1 from
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--- Comment #2 from myxol 2012-04-04 13:40:19 UTC
---
Created attachment 59491
--> https://bugs.freedesktop.org/attachment.cgi?id=59491
gdb output and xorg.log
gdb didn't produce any good backtrace. Could it be because llpp written in
ocaml?
https://bugs.freedesktop.org/show_bug.cgi?id=48305
Alex Deucher ag...@yahoo.com changed:
What|Removed |Added
Component|Drivers/DRI/R600|Drivers/Gallium/r600
---
https://bugs.freedesktop.org/show_bug.cgi?id=48305
--- Comment #2 from myxol myxolmyx...@yopmail.com 2012-04-04 13:40:19 UTC ---
Created attachment 59491
-- https://bugs.freedesktop.org/attachment.cgi?id=59491
gdb output and xorg.log
gdb didn't produce any good backtrace. Could it be because
https://bugs.freedesktop.org/show_bug.cgi?id=48305
--- Comment #3 from myxol myxolmyx...@yopmail.com 2012-04-04 13:42:36 PDT ---
Created attachment 59492
-- https://bugs.freedesktop.org/attachment.cgi?id=59492
dmesg output
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--- Comment #4 from Alex Deucher ag...@yahoo.com 2012-04-04 13:45:21 PDT ---
Make sure you install the debugging symbols for the 3D driver/mesa. Most
distros package these separately. Then when you hit the crash type bt in gdb
to get the
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