Bug 62763

Summary:	scanimage reads too much data, then wedges scanner
Product:	[Retired] Red Hat Raw Hide	Reporter:	Jonathan Kamens <jik>
Component:	sane-backends	Assignee:	Nils Philippsen <nphilipp>
Status:	CLOSED CANTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	1.0
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-04-25 07:33:10 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:
Bug Depends On:
Bug Blocks:	61901, 79579, 100644

Description Jonathan Kamens 2002-04-05 07:32:00 UTC

I have a Microtek ScanMaker E6.  I have sane-backends-1.0.7-6 and related
versions installed.  I am running kernel 2.4.18-ac3.

Every time I scan a LineArt image with scanimage, I get this message at the end:

scanimage: WARNING: read more data than announced by backend (4203960/4198236)

Then, the next time I attempt to use scanimage, the scanner clicks a couple of
times and does nothing, and then scanimage reports:

scanimage: sane_start: Error during device I/O

While this is happening, these messages show up in my dmesg output:

scsi0:0:4:0: Attempting to queue a TARGET RESET message
scsi0:0:4:0: Command not found
aic7xxx_dev_reset returns 0x2002
scsi: device set offline - not ready or command retry failed after bus reset:
host 0 channel 0 id 4 lun 0

The only way I've found to get the scanner working again at this point is to use
"echo scsi remove-single-device ... > /proc/scsi/scsi" and then "echo scsi
add-single-device ... > /proc/scsi/scsi".

Note: I don't know if the "read more data" problem is related to the other
problem, but I'm mentioning it just in case it is.

Note 2: The data read by the scanimage, when it's working, seems just fine.

Note 3: This happens whether I pass "--calib_once no" or "--calib_once yes" to
scanimage.

Comment 1 Tim Waugh 2002-05-02 13:50:04 UTC

Reported upstream: 
http://www.mostang.com/pipermail/sane-devel/2002-April/003206.html

Comment 2 Tim Waugh 2002-12-23 09:38:15 UTC

Upstream URL seems to have changed:

http://www.mostang.com/pipermail/sane-devel/2002-April/013877.html

There have been no replies though. :-(

Comment 3 Nils Philippsen 2005-10-11 08:09:25 UTC

Is this problem present with current (FC4 or Rawhide) packages?

Comment 4 Jonathan Kamens 2005-10-14 09:31:03 UTC

There's no way for me to tell.  I don't use the ScanMaker E6 anymore and can't
even plug it in to test it because I no longer have a SCSI controller in my
current controller and the old computer with the SCSI controller doesn't work
with FC4 or Rawhide.

Sorry.

Comment 5 Nils Philippsen 2006-04-25 07:33:10 UTC

Closing as there is no way to test this with current versions (without the HW).