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Date: Sun, 27 Oct 2002 10:23:37 +0100
From: Alex Riesen <fork0@users.sf.net>
To: Vladimir Trebicky <guru@cimice.yo.cz>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Swap doesn't work
Message-ID: <20021027092337.GA4507@steel>
Reply-To: Alex Riesen <fork0@users.sf.net>
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> I've made my linux-from-scratch with latest stable (2.4.19) kernel, made
> swap, turned it on but it doesn't work. It seems it does but when there's
> not enough memory, the system crashes. Either it kills the application
> desiring more memory (gcc or something) or crashes the kernel with memory
> dump. Neither the 2.4.20-pre5-ac3 helped.

Does your swap partition show up in /proc/swaps? It has to contain
something like this:

Filename			Type		Size	Used	Priority
/dev/hda6                       partition	506008	0	-1

Btw, do you see something swap-related in dmesg? Like:

  Unable to find swap-space signature
  Unable to handle swap header version ...
  Swap area shorter than signature indicates
  Empty swap-file

And do you actually see something like this:
  Adding Swap: 506008k swap-space (priority -1)

How did you initialized the swap partition? Recent kernels support both
v1 and v2 swaps, which is can be set for mkswap using -v0 (-v1).
Actually i mean did you initialized it at all? 8)

-alex
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