Re: [PATCH] Optimize out pte_chain take three

Andrew Morton
2002-07-12T19:06:29Z

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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