Bug 164862 - spinlock deadlock while running mirror I/O
spinlock deadlock while running mirror I/O
Status: CLOSED NOTABUG
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: lvm2 (Show other bugs)
4.0
All Linux
medium Severity medium
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Assigned To: Jonathan Earl Brassow
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Depends On:
Blocks: 145411
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Reported: 2005-08-01 19:18 EDT by Corey Marthaler
Modified: 2007-11-30 17:07 EST (History)
0 users

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Doc Type: Bug Fix
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Last Closed: 2005-08-02 17:43:39 EDT
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Description Corey Marthaler 2005-08-01 19:18:08 EDT
Description of problem:
While testing the fix for 164630, we were able to get around that race
condition, however that made it possible now to see a deadlock which could occur
when running I/O to a mirror. This was because two processes are both waiting on
the same spinlock.

Version-Release number of selected component (if applicable):
[root@link-02 ~]# lvcreate --version
  LVM version:     2.01.13 (2005-07-13)
  Library version: 1.01.03 (2005-06-13)
  Driver version:  4.4.0

*plus patches to fix 164630*

How reproducible:
everytime
Comment 1 Jonathan Earl Brassow 2005-08-02 17:43:39 EDT
This bug cropped up as an artifact of my fix for bug 164630, so it does _not_
currently exist in the kernel

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