Messages in this thread | | | Subject | Re: crazy swapping | From | Mark Gray <> | Date | 29 Nov 1998 12:02:12 -0500 |
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Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> writes:
> > When you create a file that have holes (using > creat();lseek(10000000);write("xxx");close()), and make it swap file, > system crashes and you get "rw_swap_page: bad swap file" message. Tested > on 2.0.33 and 2.1.129. > > Mikulas Patocka
From man mkswap: [snip] To setup a swap file, it is necessary to create that file before running mkswap . A sequence of commands similar to the following is reasonable for this purpose:
# dd if=/dev/zero of=swapfile bs=1024 count=8192 # mkswap swapfile 8192 # sync # swapon swapfile
Note that a swap file must not contain any holes (so, using cp(1) to create the file is not acceptable).
[snip]
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