Bug 240016 - invalid reference count for sata controllers
invalid reference count for sata controllers
Status: CLOSED DUPLICATE of bug 241215
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel (Show other bugs)
4.5
i386 Linux
medium Severity high
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Assigned To: Red Hat Kernel Manager
Martin Jenner
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Depends On:
Blocks: 246028
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Reported: 2007-05-14 08:51 EDT by Sandeep K. Shandilya
Modified: 2007-11-16 20:14 EST (History)
1 user (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2007-05-24 10:20:23 EDT
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)
output of lsmod on a Poweredge 830. (1.07 KB, text/plain)
2007-05-14 08:51 EDT, Sandeep K. Shandilya
no flags Details

  None (edit)
Description Sandeep K. Shandilya 2007-05-14 08:51:53 EDT
Description of problem:
The reference count of the ata_piix or sata_svw module is incorrect for an
attachment of lsmod.txt.

Version-Release number of selected component (if applicable):
kernel version in 2.6.9-55 4.5.

How reproducible:
always.

Steps to Reproduce:
1. Install linux on a PowerEdge 830 on a scsi/SAS configuration.
2. Add a disk to the ata_piix sata port.
3. modprobe the ata_piix module.
  
Actual results:
The ref count of the ata_piix module is a very high number.

Expected results:
the ref count of the ata_piix module should be zero because there are no files
open on the controller.

Additional info:
I first observed this while trying to root cause bugzilla #238855.
If I make the disk busy by creating a partition and formatting the part and
mount the disk. the reference count becomes zero and I can now remove the module
even if the partition is mounted.
Comment 1 Sandeep K. Shandilya 2007-05-14 08:51:53 EDT
Created attachment 154643 [details]
output of lsmod on a Poweredge 830.
Comment 2 Bryn M. Reeves 2007-05-24 10:20:23 EDT

*** This bug has been marked as a duplicate of 241215 ***

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