svn commit: r287934 - head/sys/boot/efi/loader

Bjoern A. Zeeb bzeeb-lists at lists.zabbadoz.net
Thu Sep 17 22:30:46 UTC 2015


> On 17 Sep 2015, at 20:43 , John Baldwin <jhb at freebsd.org> wrote:
> 
> On Thursday, September 17, 2015 08:36:47 PM John Baldwin wrote:
>> Author: jhb
>> Date: Thu Sep 17 20:36:46 2015
>> New Revision: 287934
>> URL: https://svnweb.freebsd.org/changeset/base/287934
>> 
>> Log:
>>  The EFI boot loader allocates a single chunk of contiguous memory to
>>  hold the kernel, modules, and any other loaded data.  This memory block
>>  is relocated to the kernel's expected location during the transfer of
>>  control from the loader to the kernel.
>> 
>>  The GENERIC kernel on amd64 has recently grown such that a kernel + zfs.ko
>>  no longer fits in the default staging size.  Bump the default size from
>>  32MB to 48MB to provide more breathing room.
> 
> I believe that this should work fine for any system with 64MB of RAM.  One
> downside of the static size is that the loader fails if it can't allocate
> a contiguous staging size (it isn't able to grow the staging area on
> demand).

how do md_images work in that case?




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