Bug 912857 - ICE when building arm kernel with gcc 4.8
Summary: ICE when building arm kernel with gcc 4.8
Keywords:
Status: CLOSED UPSTREAM
Alias: None
Product: Fedora
Classification: Fedora
Component: gcc
Version: rawhide
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Jakub Jelinek
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks: ARMTracker
TreeView+ depends on / blocked
 
Reported: 2013-02-19 21:03 UTC by Peter Robinson
Modified: 2013-02-20 09:46 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-02-20 09:46:08 UTC
Type: Bug
Embargoed:

Attachments (Terms of Use)
output from failed build (1.05 MB, text/plain)
2013-02-19 21:38 UTC, Peter Robinson 		no flags Details
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Links
System ID Private Priority Status Summary Last Updated
GNU Compiler Collection 56405 0 None None None Never

Description Peter Robinson 2013-02-19 21:03:43 UTC 
http://arm.koji.fedoraproject.org/koji/taskinfo?taskID=1450976

The same kernel builds fine on F18 as a scrtch build@
http://arm.koji.fedoraproject.org/koji/taskinfo?taskID=1450976

It looks like this might be related 
gcc.gnu.org/bugzilla/show_bug.cgi?id=55198
Comment 1 Peter Robinson 2013-02-19 21:38:34 UTC 
Created attachment 699677 [details]
output from failed build
Comment 2 Jakub Jelinek 2013-02-20 09:46:08 UTC 
Guess garbage in, garbage out, I don't see how
 __raw_readw (__typesafe_io (0xfee00000 + ((0x1F1) & ((resource_size_t) 0xfffff))))
could ever work at least on strict alignment machines, 0x1F1 clearly isn't 2-byte aligned.

That said, tracking this upstream, gcc shouldn't ICE even on garbage.
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