Re: [PATCH] Optimize out pte_chain take three

[Andrew Morton <akpm@zip.com.au>]

Paul Larson wrote:
> 
> I've tried booting this patch on 2.5.25+rmap on an 8-way, with highmem.  I
> got a loot of oops on boot (couldn't see the top one because it scrolled
> off the screen) and I havn't had time to set it up with serial console yet
> but I will.

you could stick a `for(;;);' in arch/i386/kernel/traps.c:die() to
stop the scrolling...

I was using Dave's patch for several hours yesterday, no probs.

>  Before I do that though I wanted to know if there are any
> known issues with my configuration.  I vaguely remember someone mentioning
> problems with multiple swap partitions a while back and that's what I have
> 
> /etc/fstab:
> /dev/sda5               swap                    swap    defaults        0 0
> /dev/sda6               swap                    swap    defaults        0 0
> /dev/sda7               swap                    swap    defaults        0 0
> /dev/sda8               swap                    swap    defaults        0 0
> /dev/sda9               swap                    swap    defaults        0 0
> /dev/sda10              swap                    swap    defaults        0 0
> /dev/sda11              swap                    swap    defaults        0 0
> /dev/sda12              swap                    swap    defaults        0 0
> 
> for a total of about 15GB swap.

In theory the limits are:

Max of 32 swapdevs
Max of 64G per swapdev.

I normally use two equal-priority disks for swap.  Works OK, but I did
considerable futzing in the swap code a while back so some bugs may have
been added.

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