Re: Kernel upgrade 2.4 -> 2.6, makes system very slow on laptop with 1GB of memory: BIOS caching bug
- From: Grant <bugsplatter@xxxxxxxxx>
- Date: Mon, 27 Feb 2006 15:01:30 +1100
On 26 Feb 2006 19:06:14 -0800, Mark.Sandler@xxxxxxxxx wrote:
Apparently the problem is that there is a bug in BIOS (quite popular),
which prevents memory region from 1008 to 1016 from being cached, and
linux is using that memory region quite actively. To check if this is
indeed the case try
Please lodge report at: http://bugzilla.kernel.org/
Otherwise l-k people who could fix this may miss your experience, it's
not in my area of competence.
Side note (and off topic).So what? ;)
The similar problem can be seen in Windows XP... (But of course one
would have no chance of finding out the cause for it, except by
installing linux...), the problem is even more evasive. The windows
would get very slow, not all the time, but only when some program
loads into uncached region... Eg. every few days or so...
Since msft' Feb 'update' I now have strange (dma?, interrupt latency?)
streaming audio bug that pushes me just another step closer to running
GNU/Linux desktop -- got used to win95 desktop -- old dog, new tricks,
me slow to move on...
on this box with 1GB memory and memory stealing Intel 865 chipset
The solution: add /maxmem=999 option to c:\boot.ini file.
AGP graphics? You have pointers to info?
Cheers,
Grant.
--
.... The computer scientist, who had listened to all of this said,
"Yes, but where do you think the chaos came from?"
.
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