cvs commit: src/sys/vm uma_int.h

David O'Brien obrien at
Fri Jun 17 06:39:18 GMT 2005

On Thu, Jun 16, 2005 at 05:06:34PM +0000, Alan Cox wrote:
> alc         2005-06-16 17:06:34 UTC
>   FreeBSD src repository
>   Modified files:
>     sys/vm               uma_int.h 
>   Log:
>   Increase UMA_BOOT_PAGES to prevent a crash during initialization.  See
> for a detailed
>   description of the crash.

Today, I finally got a traceback of my insta-reboots after marius' atkbd
commit (2005-06-10 20:56:38 UTC) and it was exactly this same traceback.
Funny that such an innocuous commit started causing my 'i386' workstation
to panic.  We were that much on the edge of having enough UMA_BOOT_PAGES?
Is 48 enough?

It looks like the code attempts to help the poor user out:
    sys/vm/uma_core.c:911:  panic("UMA: Increase UMA_BOOT_PAGES");
But why wasn't that being triggered in Eric Anderson's case and mine?
-- David  (obrien at

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