Gartner: Apache is vulnerable, we recommend switching back to IIS to protect yourselves
----- Original Message ----- 
From: "Peter Wemm" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, July 08, 2002 2:28 PM
Subject: Remember my ill-fated i386 smp pmap optimizations?


> A few months ago, I had a bit of a disaster with some pmap optimizations.
> After committing, all hell broke loose.  It was backed out completely.
> 
> I finally found the problem (diff cleaned up to highlight the problem):
> 
> pmap_mapdev()
> ...
>         for (tmpva = va; size > 0; ) {
>                 pte = vtopte(tmpva);
>                 *pte = pa | PG_RW | PG_V | pgeflag;
>                 size -= PAGE_SIZE;
>                 tmpva += PAGE_SIZE;
> -               pa += PAGE_SIZE;

:(

>         }
>         invltlb();
> 
> Excuse me while I go outside and shoot myself.
> 
> Cheers,
> -Peter
> --
> Peter Wemm - [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED]
> "All of this is for nothing if we don't go to the stars" - JMS/B5

sorry for a bit OT, but why are pmap_mapdev and pmap_unmapdev still using
old C language parameter style? I saw other functions in pmap using ANSI
C style.

David Xu



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