Note: This is a public test instance of Red Hat Bugzilla. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback at bugzilla.redhat.com.

Bug 912857

Summary: ICE when building arm kernel with gcc 4.8
Product: [Fedora] Fedora Reporter: Peter Robinson <pbrobinson>
Component: gccAssignee: Jakub Jelinek <jakub>
Status: CLOSED UPSTREAM QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: rawhideCC: gansalmon, itamar, jakub, jonathan, kernel-maint, law, madhu.chinakonda
Target Milestone: ---   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-02-20 09:46:08 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 245418    
Attachments:
Description Flags
output from failed build none

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.