Bug 34771

Summary:	ghost SCSI/USB modules reading errating kernel memory
Product:	[Retired] Red Hat Linux	Reporter:	Arenas Belon, Carlo Marcelo <carenas>
Component:	kernel	Assignee:	Pete Zaitcev <zaitcev>
Status:	CLOSED NOTABUG	QA Contact:	Brock Organ <borgan>
Severity:	low	Docs Contact:
Priority:	medium
Version:	7.1
Target Milestone:	---
Target Release:	---
Hardware:	i686
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2002-06-03 18:07:15 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Arenas Belon, Carlo Marcelo 2001-04-04 21:34:31 UTC

when autoplug is executed to load a module on the kernel because of a
hardware event (a device is connected), it doesn't check back to unload de
module when the device is disconected.

as the usb device is no longer connected, quering information such
(cdrecord -scanbus), returns errating messages from an already existing
scsi device that no longer belongs to a device.

this has been tested on qa0328 and kernel 2.4.2-0.1.40.

Comment 1 Pete Zaitcev 2002-06-03 18:07:09 UTC

I am afraid this is WONTFIX material.
We found that doing the "rmmod -a from cron" trick is
very harmful (it removes usb-uhci, for instance).
Upstream community says the same.

It should be possible for sd to figure that the device
is offline (by check condition status from usb-storage).
If it does not work, I can consider an RFE.