Bug 436799

Summary:	x86: clear DF before calling signal handler
Product:	[Fedora] Fedora	Reporter:	Rex Dieter <rdieter>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	green, jonstanley
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2008-03-10 15:02:40 UTC	Type:	---
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:	434401, 444178

Description Rex Dieter 2008-03-10 14:55:53 UTC

+++ This bug was initially created as a clone of Bug #434401 +++

This is an automatically filed bug for a failed rebuild attempt for GCC 4.3.

http://fedoraproject.org/wiki/JesseKeating/gcc43MassRebuildProposal

Please verify why this build failed and fix it.
http://koji.fedoraproject.org/koji/taskinfo?taskID=444164
Exit code was 1, check the build.log for the failed buildArch task.

-- Additional comment from jonstanley on 2008-03-01 15:21 EST --
scratch build 482744

-- Additional comment from jonstanley on 2008-03-02 01:10 EST --

; compiling (DEFINE-MOVE-VOP MOVE-FROM-DOUBLE ...)unhandled
SB-SYS:MEMORY-FAULT-ERROR in thread #<SB-THREAD:THREAD "initial thread" {A714909}>:
  Unhandled memory fault at #x0.

0: (SB-DEBUG:BACKTRACE 128 #<SYNONYM-STREAM :SYMBOL SB-SYS:*STDERR* {90B3F01}>)
1: (SB-DEBUG::DEBUGGER-DISABLED-HOOK
    #<SB-SYS:MEMORY-FAULT-ERROR {BEF46B1}>
    #<unavailable argument>)
2: (INVOKE-DEBUGGER #<SB-SYS:MEMORY-FAULT-ERROR {BEF46B1}>)
3: (INVOKE-DEBUGGER #<SB-SYS:MEMORY-FAULT-ERROR {BEF46B1}>)
4: (ERROR SB-SYS:MEMORY-FAULT-ERROR)
5: (SB-SYS:MEMORY-FAULT-ERROR)
6: (SB-SYS:MEMORY-FAULT-ERROR)
7: ("foreign function: #x805FD5C")
8: ("foreign function: #x805FFB8")



-- Additional comment from rdieter.edu on 2008-03-06 15:29 EST --
Confirmed on upstream sbcl ml, debian'ers are also seeing fatal problems on
gcc-4.3-derived systems.

-- Additional comment from rdieter.edu on 2008-03-10 10:10 EST --
My most recent post to upstream ml:
"[Sbcl-devel] sbcl doesn't run on gcc-4.3 environment?"
http://sourceforge.net/mailarchive/forum.php?thread_name=fr3e81%242tj%241%40ger.gmane.org&forum_name=sbcl-devel

-- Additional comment from rdieter.edu on 2008-03-10 10:21 EST --
gcc43/kernel bug? sbcl devs pointed me to:
"GCC 4.3.0 exposes a kernel bug"  http://lwn.net/Articles/272048/
(I'm not currently an lwn subscriber, so can't access the article, yet).

Comment 1 Rex Dieter 2008-03-10 14:57:25 UTC

Fix upstreamed:
http://marc.info/?l=git-commits-head&m=120492000901739&w=2

So, hopefully just a matter of time to see this.

Comment 2 Dave Jones 2008-03-10 15:02:40 UTC

latest builds should have this.
If not, todays definitely will.

Comment 3 Rex Dieter 2008-03-10 15:16:34 UTC

Thanks, I'll sync my rawhide lappy, and see how things go.