[Crash-utility] [RFC] makedumpfile, crash: LZO compression support

[HATAYAMA Daisuke]

From: Dave Anderson <anderson at redhat.com>
Subject: Re: [Crash-utility] [RFC] makedumpfile, crash: LZO compression support
Date: Wed, 07 Dec 2011 12:32:10 -0500 (EST)

> 
> 
> ----- Original Message -----
>> Hello Hatayama-san,
>> 
>> > How about the patch adding compression/IO time report?
>> > I intended it only for the presentation of this RFC.
>> 
>> I think the above patch was posted only for this discussion,
>> and I won't merge it into the makedumpfile.
>> 
>> 
>> > I'll post the corresponding patch in crash's side after crash 6.0.2 is
>> > released, waiting for new configuration editing feature as Dave has explained.
>> 
>> If the Crash supports LZO compression, I'll merge the feature into
>> the makedumpfile.
> 
> I suppose it's a chicken-and-egg situation, but despite the recent
> addition of the extra-library build feature added to the crash
> utility, I wasn't planning to accept LZO compression support until
> it was first supported in makedumpfile.  And even with crash support,
> it would still require a hand-rebuild of the crash utility sources.
> 
> If this is merged into makedumpfile and crash, will Fujitsu's next
> step will be to try to make it non-optional?  I'm still not convinced
> it's worth forcing the pre-installation of the additional packages
> and library by default.  
> 

I don't intend pre-instration of LZO-related libraries on the
community version because only relatively recent distributions
provides them as their packages and so making it requiring the
libraries by default seems to only irritate users for the
distributions not providing LZO-related libraries, such as RHEL.

Of course, I think it better to make them default if the libraries
exist on the distribution.

Thanks.
HATAYAMA, Daisuke