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Bug 912857 - ICE when building arm kernel with gcc 4.8
Summary: ICE when building arm kernel with gcc 4.8
Alias: None
Product: Fedora
Classification: Fedora
Component: gcc
Version: rawhide
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Jakub Jelinek
QA Contact: Fedora Extras Quality Assurance
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:
Last Closed: 2013-02-20 09:46:08 UTC
Type: Bug

Attachments (Terms of Use)
output from failed build (1.05 MB, text/plain)
2013-02-19 21:38 UTC, Peter Robinson
no flags Details

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

The same kernel builds fine on F18 as a scrtch build@

It looks like this might be related

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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