Bug 25379

Summary: AppleTalk module produces 'kmem_grow' errors when loaded
Product: [Retired] Red Hat Linux Reporter: Basil Hussain <basil.hussain>
Component: kernelAssignee: Arjan van de Ven <arjanv>
Status: CLOSED CURRENTRELEASE QA Contact: Brock Organ <borgan>
Severity: low Docs Contact:
Priority: medium    
Version: 6.2   
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2004-09-30 15:38:54 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Description Basil Hussain 2001-01-31 14:55:19 UTC
When loading of the AppleTalk kernel module is caused by the Netatalk daemon 
starting up for the first time, the kernel reports several (usually 3 
consecutively) "kmem_grow: Called nonatomically from int - size-32" error 

Reproducible: Always

Steps to Reproduce:
1. Stop the Netatalk daemon.
2. Remove the AppleTalk kernel module using 'rmmod'.
3. Re-insert the AppleTalk module using 'insmod'.
4. Re-start Netatalk.
Actual Results:

# /etc/rc.d/init.d/atalk stop
Shutting down AppleTalk services:                          [  OK  ]
# /sbin/rmmod appletalk
# /sbin/insmod appletalk
Using /lib/modules/2.2.16-22/misc/appletalk.o
# /etc/rc.d/init.d/atalk start
Starting AppleTalk services:                               [  OK  ]

The following is logged to /var/log/messages:

Jan 31 10:28:24 secure kernel: kmem_grow: Called nonatomically from int - 
Jan 31 10:28:24 secure last message repeated 2 times

Expected Results:  Well, no errors, obviously...

This on a RH 6.2 system, onto which I have retrofitted the 2.2.16-22 kernel 
as distributed with RH7.0. The AppleTalk kernel module's version is "NET4: 
AppleTalk 0.18 for Linux NET4.0". Tests were performed using netatalk-
1.4.99-0.20001108mdk (http://sourceforge.net/projects/netatalk/) installed 
via RPM.

Also, the functionality of the Netatalk daemon doesn't seem to be affected 
by the errors - all normal operations work as usual. Restarting Netatalk by 
itself doesn't cause any errors.

Comment 1 Basil Hussain 2001-01-31 19:37:51 UTC
With a bit of digging around on the kernel development mailing list, I found out 
that this has been solved by a patch to 2.2.17pre13, thusly:


Comment 2 Michael K. Johnson 2001-02-08 17:49:12 UTC
OK, let's queue that patch for analysis for future 2.2 kernel

Comment 3 Basil Hussain 2001-02-15 10:43:19 UTC
I notice there is a new 2.2.17-14 kernel package out now:


Has this issue been fixed in this release? I could find no mention of 
AppleTalk in the RPM's changelog. Or will it be resolved in a future 

Comment 4 Bugzilla owner 2004-09-30 15:38:54 UTC
Thanks for the bug report. However, Red Hat no longer maintains this version of
the product. Please upgrade to the latest version and open a new bug if the problem

The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases, 
and if you believe this bug is interesting to them, please report the problem in
the bug tracker at: http://bugzilla.fedora.us/