Re: Show stopper bugs for 5.0

[Michael Lorenz <macallan%NetBSD.org@localhost>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hello,

On May 21, 2008, at 15:43, Manuel Bouyer wrote:

> On Tue, May 20, 2008 at 08:39:09PM -0400, Michael Lorenz wrote:
> > I didn't commit the fix yet because chuq thinks that's just a
> > workaround for a problem elsewhere, but I couldn't find anything
> > remotely related in the 7400 errata list. He's got a dual 7455 which
> > doesn't have this problem - his CPUs have L3 cache though, no idea if
>
> Maybe it's L1 cache have different characteristics ?

Both have 32kB instruction and 32kB data cache.

> Could it happen that this part of code has already been cached in your
> L1 instruction cache at this point of operations, but not on chuq's ?

As far as I know the L1 caches should behave identical on both CPUs.

have fun
Michael

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (Darwin)

iQEVAwUBSDSIp8pnzkX8Yg2nAQIvsQgAqolHreWR5uj4v8DXNrwuQlqYS9kwvWSm
jbQ54Xdz1ZpJjxxP6rezx6tdapbFKRjmHACRrmrnkAj30+BR+AhTxxtVd696OuHV
R3Naq6U8sCO5KexgeR8ldodtn2ccxJTzmIfR0Jj3HRVdYk/ywkgmA2sQlz4vP4y+
3dxGDf2j2LuggQrq1Yn6oIvWAnNzkUCzvZ2kpPdiVa2uYBdgulgeA5Qty/3xS3AB
YUYXYtIL3AzQrzo86k7Nv2aLZ3iMGSKq9xl5eLJw7ZNXEdcPe+b7E/8P+gBtNICW
U3Symvcjzia3qtAA4+PQuh5kIhOWpouYMBsRj4KlIT18x3W/fSmybQ==
=FwYo
-----END PGP SIGNATURE-----