svn commit: r212964 - head/sys/kern

[Xin LI]

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On 2010/09/23 19:31, M. Warner Losh wrote:
> In message: <alpine.LNX.2.00.1009231841500.23791 at ury.york.ac.uk>
>             Gavin Atkinson <gavin at FreeBSD.org> writes:
> : On Thu, 23 Sep 2010, Ken Smith wrote:
> : > The issues talked about so far all contribute to the reason for that.
> : > But one of the more basic gut reactions to it all is that the users
> : > want to be interested in helping with the debugging (even if just
> : > providing the requested info) for any sort of crash information
> : > to be useful.  And at the point we shift something from -current
> : > to -stable the percentage of people actively interested in participating
> : > in that sort of stuff flip.  The bulk of people using -current
> : > know it's risky and they do it out of some interest in debugging
> : > stuff.  The *bulk* of people using -stable are less interested or
> : > flat out not interested.  And have no clue what crash dumps are,
> : > may be challenged to notice partition-getting-full issues, etc.
> : 
> : I'm not sure I buy this argument, I'm afraid.  Part of the advantage of 
> : having all this done automatically on the as-shipped release media is that 
> : end users don't have to be interested in debugging - crashinfo(8) does 
> : most of the work for them.  There's no easy way to actually determine 
> : figures, but even if say only 10-15% of crashes can be diagnosed and 
> : corrected just from the output of crashinfo(8) then that's a huge win for 
> : the project as a whole. I'm guessing 10-15% is not unrealistic.
> : 
> : I appreciate the issue about filling partitions is a valid one.  Would a 
> : possible compromise be that on release media, crashinfo(8) or similar will 
> : default to only keeping the most recent coredump or similar?  Given /var 
> : now defaults to 4GB, Defaulting to keeping a single core is probably 
> : acceptable.
> 
> Furthermore, if we aren't interested in crash dumps by default, why do
> we install the huge .symbols files?

+1.  Even textdump would be a huge help for the project (except it
depends on KDB/DDB which should be considered more thoroughly due to
security consequences).

Cheers,
- -- 
Xin LI <delphij at delphij.net>	http://www.delphij.net/
FreeBSD - The Power to Serve!	       Live free or die
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