On 20-Jan-06, at 4:41 PM, Andrew Morton wrote:
Adrian Bunk <[email protected]> wrote:
On Fri, Jan 20, 2006 at 04:44:07AM -0800, Andrew Morton wrote:
Tony Mantler <[email protected]> wrote:
I'm having trouble running lsof on 2.6.15.1 when the kernel is
compiled with CONFIG_MK6. When run as root, lsof will segfault, and
when run as a user lsof will hang unkillable.
The same kernel, same machine, but compiled with CONFIG_MK7 runs
just
lsof just fine.
That's creepy. CONFIG_MK6 hardly does anything. The main thing
it does is
feed `-march=k6' into the compiler. MK7 uses `-march=athlon'.
...
CONFIG_MK7 results in a bigger L1_CACHE_SHIFT than CONFIG_MK6.
AFAIR it wouldn't be the first time that changing L1_CACHE_SHIFT
would
hide a real bug visible with a different L1_CACHE_SHIFT.
hm, OK. Well that's something we can ask Tony to eliminate, by
patching
his Kconfig.cpu to make CONFIG_MK6 have the larger L1_CACHE_SHIFT
(and/or
vice versa).
Just tested that a few seconds ago, actually.
CONFIG_MK6 with CONFIG_L1_CACHE_SHIFT=6 results in the same crash.
I'm going to twiddle the configs again and see if I can make a
CONFIG_MK7 kernel with -march=k6
Cheers - Tony 'Nicoya' Mantler :)
--
Tony 'Nicoya' Mantler -- Master of Code-fu -- [email protected]
-- http://nicoya.feline.pp.se/ -- http://www.ubb.ca/ --
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