Bug 171277 - MCE arg parsing broken on x86-64
MCE arg parsing broken on x86-64
Status: CLOSED ERRATA
Product: Red Hat Enterprise Linux 3
Classification: Red Hat
Component: kernel (Show other bugs)
3.0
x86_64 Linux
medium Severity medium
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Assigned To: Jim Paradis
Brian Brock
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Depends On:
Blocks: RHEL3U8CanFix 191141
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Reported: 2005-10-20 06:23 EDT by Bastien Nocera
Modified: 2013-08-05 21:16 EDT (History)
2 users (show)

See Also:
Fixed In Version: RHSA-2006-0437
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Environment:
Last Closed: 2006-07-20 09:32:21 EDT
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)
bluesmoke-arg-parsing-x86-64.patch (298 bytes, patch)
2005-10-20 06:23 EDT, Bastien Nocera
no flags Details | Diff

  None (edit)
Description Bastien Nocera 2005-10-20 06:23:45 EDT
In arch/x86-64/kernel/bluesmoke.c:
__setup("mce", mcheck_enable);

And the comment for mcheck_enable says:
/* mce=off disable machine check
   mce=nok8 disable k8 specific features
   mce=disable<NUMBER> disable bank NUMBER
   mce=enable<NUMBER> enable bank number
   mce=NUMBER mcheck timer interval number seconds.
   Can be also comma separated in a single mce= */
But the '=' passed to mcheck_enable is not taken into account, and parsing will
fail every time.

Trivial patch attached.
Comment 1 Bastien Nocera 2005-10-20 06:23:46 EDT
Created attachment 120187 [details]
bluesmoke-arg-parsing-x86-64.patch
Comment 2 Jim Paradis 2006-02-10 13:53:43 EST
This bug, as reported, is actually against RHEL3, not RHEL4 (the patch supplied
is a 2.4 patch, and bluesmoke.c is only seen in RHEL3).  The same problem occurs
in RHEL4, though.  I'll file a separate bug for that.
Comment 3 Ernie Petrides 2006-02-17 19:25:30 EST
A fix for this problem has just been committed to the RHEL3 U8
patch pool this evening (in kernel version 2.4.21-40.2.EL).
Comment 4 Ernie Petrides 2006-04-28 17:53:20 EDT
Adding a couple dozen bugs to CanFix list so I can complete the stupid advisory.
Comment 7 Red Hat Bugzilla 2006-07-20 09:32:21 EDT
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2006-0437.html

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