Re: 2.4.0-test3-pre1 oops in shm_init

From: Keith Owens (kaos@ocs.com.au)
Date: Fri Jul 07 2000 - 02:12:43 EST


On Tue, 27 Jun 2000 11:58:55 +0100 (BST),
Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
>> 2.4.0-test3-pre1 oops during startup. The "head" parameter passed to
>> find_inode contains all -1 entries. kdb log
>
>Can you grovel through the symbol table and check that the BSS start and
>end seem sane and then that the kernel is clearing the entire BSS on boot.

Finally got some testing time on this machine. It turned out that lilo
was silently truncating the command line to 79 characters. "mem=127M"
was being read as "mem=1". You get some interesting effects when that
happens, like memory sizes wrapping to ff000001. Might be worth adding
some checks in parse_mem_cmdline() to pick up silly memory values.

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