#11763 LOW Future : gcc segfaults a lot on XO-1.75 12.1.0

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#11763: gcc segfaults a lot on XO-1.75 12.1.0
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           Reporter:  carrott    |       Owner:  dsd           
               Type:  defect     |      Status:  assigned      
           Priority:  low        |   Milestone:  Future Release
          Component:  distro     |     Version:  not specified 
         Resolution:             |    Keywords:                
        Next_action:  never set  |    Verified:  0             
Deployment_affected:             |   Blockedby:                
           Blocking:             |  
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Comment(by dsd):

 It was mentioned on IRC that this commit could possibly help here:

 {{{
 From 15ac49b65024f55c4371a53214879a9c77c4fbf9 Mon Sep 17 00:00:00 2001
 From: Russell King <rmk+kernel at arm.linux.org.uk>
 Date: Mon, 30 Jul 2012 19:42:10 +0100
 Subject: [PATCH] ARM: Fix undefined instruction exception handling
 }}}

 I backported this to arm-3.0-wip, which actually required some more
 commits too. Overall:
 {{{
  ARM: Fix undefined instruction exception handling
  ARM: 7031/1: entry: Fix Thumb-2 undef handling for multi-CPU kernels
  ARM: 7030/1: entry: Remove unnecessary masking when decoding Thumb-2
 instructions
  ARM: entry: rejig register allocation in exception entry handlers
  ARM: entry: prefetch/data abort helpers: convert to macros
 }}}

 Then I tested it on my XO-1.75 SHC20500127 (SKU203) and found that the
 compiler was just as crashy as before :(

 Interestingly I think this failure may be limited to certain machines
 only, as today I built llvm and gtk3 on another XO-1.75 SHC20600104
 (SKU204) and succeeded.

-- 
Ticket URL: <http://dev.laptop.org/ticket/11763#comment:3>
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