Bug 808743

Summary: SATA AHCI hotpluggable port fails to recognize eSATA drive the 2nd time (patch)
Product: [Fedora] Fedora Reporter: Patrick <rh_bugzilla>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 16CC: gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, starfall
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Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2012-04-02 13:33:14 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
Lin Ming's patch from LKML none

Description Patrick 2012-03-31 12:20:23 UTC 
Description of problem:
SATA AHCI hotpluggable port fails to recognize/activate eSATA drive the 2nd and more times.

Version-Release number of selected component (if applicable):
Fedora 16 with kernel-3.3.0-4.fc16.x86_64

How reproducible:
Boot PC with F16, log in to Gnome3 desktop and start Nautilus, plug eSATA cable into external harddisk and PC, put power cable into external harddisk, switch on external harddisk, wait for it to appear in Nautilus, mount it, unount it, switch off external harddisk, wait 2 minutes, switch on external harddisk again: external harddisk is no longer recognized, zero ata/sd related messages in /var/log/messages.

Steps to Reproduce:
1. boot PC with F16, login, start Nautilus, switch on external harddisk, mount, unmount
2. switch off external harddisk, wait 2 minutes
3. switch on external harddisk - harddisk is no longer recognized
  
Actual results:
Resources on external harddisk are not available when the harddisk is switched on the 2nd or more times.

Expected results:
Resources are available no matter how many times you turn the external harddisk on/off.

Additional info:
LKML report: https://lkml.org/lkml/2012/3/4/152

Patch by Lin Ming: http://marc.info/?l=linux-kernel&m=132996405028746&w=2
Comment 1 Patrick 2012-03-31 12:23:29 UTC 
Created attachment 574200 [details]
Lin Ming's patch from LKML

This is the patch that Intel's Lin Ming sent to LKML in response to https://lkml.org/lkml/2012/3/4/152
Original patch in LKML post: http://marc.info/?l=linux-kernel&m=132996405028746&w=2
Comment 2 starfall 2012-04-01 01:58:37 UTC 
I can confirm that the same issue exists on my main Fedora 16 system with kernel-3.3.0-4.fc16.x86_64.
Comment 3 Josh Boyer 2012-04-02 13:33:14 UTC 

*** This bug has been marked as a duplicate of bug 806676 ***