Bug 242390

Summary:	[JAVA BLOCKER] CONFIG_ALLOC_RTSJ_MEM cannot be a module
Product:	Red Hat Enterprise MRG	Reporter:	IBM Bug Proxy <bugproxy>
Component:	realtime-kernel	Assignee:	Clark Williams <williams>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	urgent	Docs Contact:
Priority:	low
Version:	1.0
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	2.6.21-31.el5rt	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-06-20 16:22:01 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:	242581

Description IBM Bug Proxy 2007-06-03 23:21:58 UTC

LTC Owner is: jstultz.com
LTC Originator is: jstultz.com


From Ted:
"Um, alloc_rtsj_mem must be compiled into the kernel.  That's because the RTSJ
TCK needs more space than the module can allocate using kmalloc().   So the
alloc_rtsj_mem driver must be compiled into kernel, so that it can allocate
memory out of the early_boot initialization, before the mm subsystem is
initialized. 

So CONFIG_RMEM can be 'm', but CONFIG_ALLOC_RTSJ_MEM must be 'y'. "

So this is a request that RH changes their -rt config to set
CONFIG_ALLOC_RTSJ_MEM to "y".

Comment 1 Tim Burke 2007-06-04 20:27:15 UTC

Please provide a description of the associated parameter describing mem size on
boot line.

Comment 2 IBM Bug Proxy 2007-06-04 22:01:01 UTC

----- Additional Comments From jstultz.com (prefers email at johnstul.com)  2007-06-04 17:57 EDT -------
If alloc_rtsj_mem is built statically, the boot option would be:
    alloc_rtsj_mem.size=<memsize>

Where an example size is 1024

Comment 3 Tim Burke 2007-06-05 01:43:35 UTC

1024 what?  what is the units? pages? MB?

Comment 4 IBM Bug Proxy 2007-06-05 02:05:30 UTC

----- Additional Comments From jstultz.com (prefers email at johnstul.com)  2007-06-04 22:00 EDT -------
the size argument is in bytes.

Comment 5 IBM Bug Proxy 2007-06-20 00:30:37 UTC

changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|SUBMITTED                   |ACCEPTED




------- Additional Comments From jstultz.com (prefers email at johnstul.com)  2007-06-19 20:26 EDT -------
Verified fixed in 2.6.21-31.el5rt