Bug 159615 - cman schedules within spinlock
cman schedules within spinlock
Product: Red Hat Cluster Suite
Classification: Red Hat
Component: cman (Show other bugs)
All Linux
medium Severity medium
: ---
: ---
Assigned To: Christine Caulfield
Cluster QE
Depends On:
  Show dependency treegraph
Reported: 2005-06-05 23:46 EDT by David Teigland
Modified: 2009-04-16 15:59 EDT (History)
1 user (show)

See Also:
Fixed In Version: RHBA-2005-734
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2005-10-07 12:46:30 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)

  None (edit)
Description David Teigland 2005-06-05 23:46:14 EDT
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050302 Firefox/1.0.1 Fedora/1.0.1-1.3.2

Description of problem:
Cman barrier callback into SM schedules within spinlock.
The schedule is hidden within the SM_RETRY/kmalloc macro
which doesn't make sense anyway when using GFP_ATOMIC.

I don't think we've actually seen this cause a problem
apart from the warning message, but the potential of
deadlocking the kernel obviously exists.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. use cman

Additional info:
Comment 1 Christine Caulfield 2005-06-28 09:15:25 EDT
This was fixed on the RHEL4 branch on 2005/06/06
Comment 3 Red Hat Bugzilla 2005-10-07 12:46:30 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.


Note You need to log in before you can comment on or make changes to this bug.