Blue Swirl wrote:
Thanks a lot, with this patch my tests passed! I applied the combined patch.
Yes, I definitely see an improvement with this patch - at least my
Debian lenny SPARC boot cd doesn't randomly kernel panic any more. It
looks as if it now just can't find /init which could just be due to an
incorrect device mapping somewhere.
I also did a bit of refactoring to get the original Sparc64 issue fixed.
However, one thing I did notice is that this does introduce a noticeable
performance penalty. With OpenBIOS SVN head I see the following:
With commit 72139e83a98eba2bfed2dbc2db2818fb19e47ca0 (just before the
changes):
[ 59.225406] Failed to execute /init
[ 59.304088] Kernel panic - not syncing: No init found. Try passing
init= option to kernel.
[ 59.450313] Press Stop-A (L1-A) to return to the boot prom
With commit 5a834bb47c373e887de5210b7ceae96e1ef413f7 (just after the
changes):
[ 70.384466] Failed to execute /init
[ 70.474804] Kernel panic - not syncing: No init found. Try passing
init= option to kernel.
So while it's technically correct, it seems to have added ~15% overhead
to the emulation :(
ATB,
Mark.
--
Mark Cave-Ayland - Senior Technical Architect
PostgreSQL - PostGIS
Sirius Corporation plc - control through freedom
http://www.siriusit.co.uk
t: +44 870 608 0063
Sirius Labs: http://www.siriusit.co.uk/labs
