Re: [Linux-ia64] [patch] 2.4.20-021210 misaligned sal error record

[Bjorn Helgaas <bjorn_helgaas@hp.com>]

On Monday 24 February 2003 5:24 pm, Keith Owens wrote:
> The fr entries in struct sal_processor_static_info are 16 bytes wide
> but may not start on a 16 byte boundary in the sal record (it depends
> on the size of min_state).  Stop gcc from assuming that the fr entries
> are 16 byte aligned.
> 
> This was misaligning the fr records within sal_processor_static_info.
> In addition, because gcc thought that sal_processor_static_info
> contained a 16 byte field, sal_processor_static_info was being forced
> to 16 byte alignment within struct err_rec, destroying the mapping of
> the sal error record (preceding sal record header is only 40 bytes).
> 
> Within sal_log_processor_info, the sal_log_mod_error_info_t entries are
> fixed size but have a variable number of entries.  Change the
> definition from 16 (max) to 0 entries and add a function to calculate
> the address of the processor static info within sal_log_processor_info,
> based on what sal actually supplied.  Use that function in
> ia64_init_handler() to get the min_state data.
> 
> Against 2.4.20-ia64-021210.

I applied the patch from 2.5 to 2.4 as well.