Bug 102197 - Disk WRITE fails with Fujitsu SCSI disks
Summary: Disk WRITE fails with Fujitsu SCSI disks
Alias: None
Product: Red Hat Enterprise Linux 3
Classification: Red Hat
Component: kernel   
(Show other bugs)
Version: 3.0
Hardware: i686
OS: Linux
Target Milestone: ---
Assignee: Tom Coughlan
QA Contact: Brian Brock
Depends On:
TreeView+ depends on / blocked
Reported: 2003-08-12 14:09 UTC by Winfrid Tschiedel
Modified: 2007-11-30 22:06 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2003-10-02 12:14:24 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Winfrid Tschiedel 2003-08-12 14:09:02 UTC
Description of problem:

IO programs fail with Fujitsu U320 SCSI disk MAP-Series, when 
Fujitsu U320 SCSI Disks have too low firmware level,
Adaptec controller AIC7902 is used
Adaptec driver has a version < 1.3.8 

As long as we had system which complies to above requirements, we did not
have any problems. Now one of our customers was using a kernel from
RHEL 3.0 beta 1 for i386, and we got in some cases incorrect write operations -
meaning that the return-code from write was not equal to the length of the 
written record. 

For the moment it would be enough if you could compare the source of your
aic79xx 1.3.10 with the actual source from Mr. Gibbs, which is available
on people.freebsd.org/~gibbs/linux, to check if you missed changes
done be Adaptec to fix the problem AIC79xx with Fujitsu SCSI disks

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
Actual results:

Expected results:

Additional info: please check also bug 102194

Comment 1 Tom Coughlan 2003-10-02 12:14:24 UTC

------- Additional Comments From Winfrid.Tschiedel@hpc.fujitsu-siemens.com 
2003-10-01 02:38 -------
Hello Tom,

Many thanks, the problem did not occur with newer kernels, so you can close
this bug.


PS.: You should keep also an eye on bug 102194, we are have still a bad 
     READ performance with the Enterprise Kernel ( 2.4.21-3EL ) compared
     to e.g. 2.4.20-19.9.smp 

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