svn commit: r212964 - head/sys/kern

Doug Barton dougb at
Fri Sep 24 20:29:21 UTC 2010

On 9/24/2010 6:23 AM, John Baldwin wrote:
> The biggest argument against this (and the reason I always enable crashdumps
> on all machines I am involved with) is that many panics are not easily
> reproducible, esp. ones that trigger under load.  If dumpdev is not on by
> default, then the info from a rare or hard-to-trigger bug may simply be lost.
> Also, "just send-pr or mail the 'foo' file" is even simpler than "enable this
> knob in rc.conf and reproduce your issue, then come back".

I agree with John, and the others who have expressed similar sentiments. 
All of the technical problems that prevent this have solutions, 
particularly if Y! is willing to donate the patch that prevents multiple 
dumps from filling the disk.




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