kernel panic with memory disks

[Stefan Lambrev]

Hello,

Eric Kjeldergaard wrote:
> On 20/08/07, Stefan Lambrev <stefan.lambrev at moneybookers.com> wrote:
>   
>> Hello,
>>
>> I do not know if this is know behavior, and I know that 6.2 panic if the
>> memory disk got full,
>> but on 7-current the panic is before the disk got full.
>>
>> Here is what I do:
>>
>> mdconfig -a -t malloc -s 800m
>> newfs /dev/md0
>> mount /dev/md0 /mnt
>> cp 600mb.file /mnt
>>     
>
>      -t type
>              Select the type of the memory disk.
>
>              malloc   Storage for this type of memory disk is allocated with
>                       malloc(9).  This limits the size to the malloc bucket
>                       limit in the kernel.  If the -o reserve option is not
>                       set, creating and filling a large malloc-backed memory
>                       disk is a very easy way to panic a system.
> -- mdconfig(8)
>
>   
I really should read manuals more carefully :) Thanks for the information.

Just one more question - to prevent panic I should use "-o reserve" and 
have to increase:
vfs.maxmallocbufspace
vfs.bufmallocspace

-- 

Best Wishes,
Stefan Lambrev
ICQ# 24134177