Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

Bug 55185

Summary:	HP-UX interaction with RedHat 7.1 lockd causes kernel oops
Product:	[Retired] Red Hat Linux	Reporter:	Bob Farmer <redhat>
Component:	nfs-server	Assignee:	Michael K. Johnson <johnsonm>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	high	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:	2004-02-11 20:32:06 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 Bob Farmer 2001-10-26 19:09:08 UTC

Description of problem:
Using an HP-UX 11.0 (J6700 workstation) machine as an NFS client to a
RedHat 7.1 machine causes the RedHat machine to begin logging messages such
as these:

Oct 24 17:46:25 nas kernel: nfsd: request from insecure port
(c0a801d2:49226)!

Eventually (but not necessarily immediately, or every time), this will
cause the RedHat system to get a kernel oops (in the lockd module) and lock
up.

The problem can be fixed by adding the "insecure" option to the exports
file on the RedHat machine, but there is still the crash bug.


How reproducible:
Always

Steps to Reproduce:
1. Install an HP-UX 11.0 machine
2. Export a filesystem from a RedHat 7.1 server to the HP-UX machine, with
just the "rw" option, nothing special.
3. Set up the HP-UX machine to act as an NFS client to the RedHat server,
default options, nothing special.
4. Begin running programs on the HP-UX machine that use file locking.
5. On the RedHat server, you should begin receiving the "request from
insecure port" messages from nfsd/lockd.
6. After enough of them (2-3 in our case), you should see things like NFS
stop working altogether, kernel oops from lockd, and/or system crash/hang,
etc.

Comment 1 Suzanne Hillman 2004-02-11 20:32:06 UTC

7.1 no longer supported. Closing.