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Re: TAKE 981498 - Use KM_NOFS for debug trace buffers

To: Mark Goodwin <markgw@xxxxxxx>
Subject: Re: TAKE 981498 - Use KM_NOFS for debug trace buffers
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Mon, 11 Aug 2008 19:51:07 +1000
Cc: Bhagi rathi <jahnu77@xxxxxxxxx>, Lachlan McIlroy <lachlan@xxxxxxx>, xfs@xxxxxxxxxxx
In-reply-to: <48A008C3.7060603@xxxxxxx>
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On Mon, Aug 11, 2008 at 07:39:15PM +1000, Mark Goodwin wrote:
> Reply in verbatim below ...
> Dave Chinner wrote:
>> On Fri, Aug 08, 2008 at 10:46:56AM +0530, Bhagi rathi wrote:
>>>>  Are we safe that we fixed all these real problems by looking
>>>>  into possible allocations that will enter into file-system? The
>>>>  problem with trace buffers is telling us to clean this code path.
>>>>  By the way, I browse the source code from lxr.linux.no.
>>>>  If I have to browse the latest xfs source code with linux
>>>>  kernel that is used at SGI, how can I do that?
>>>  Any pointers on this? I wish to setup my own xfs development enviroment
>>>  and details on this will be helpful.
>> Well, you could look at the XFS home page and follow the links to:
> where? Did this URL get edited out (as seems to be happening lately)
> or did you neglect to paste it in?

Nope, the url got removed. it pointed to (using the same trick as last


>> Or for just the kernel source you can use the master branch
>> of the XFS git tree at:
>> git://oss.sgi.com:8090/xfs/xfs-2.6.git master

Note that this one didn't, but barracuda thought it was a http
URI and gave a nasty warning about it:

| X-Barracuda-Spam-Status: No, SCORE=-0.49 using per-user scores of 
| X-Barracuda-Spam-Report: Code version 3.2, rules version
|         Rule breakdown below
|         pts rule name              description
|         ---- ---------------------- 
|         1.50 WEIRD_PORT             URI: Uses non-standard port number for 

Given that I can send URLs to myself, to lkml, friends, etc
and they work, this points to something specific to the XFS mailing


Dave Chinner

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