SATA drives won't detect with WITNESS
Wiktor Niesiobedzki
bsd at w.evip.pl
Tue May 4 13:18:52 PDT 2004
Hi,
My last kernels, build on May 1 (from the fresh CURRENT sources), expose some
strange behaviour, namely, kernel with options added:
options INVARIANTS
options INVARIANT_SUPPORT
options WITNESS
options WITNESS_SKIPSPIN
Will not detect properly the SATA drive. Anyone also sees this bug? Any clues,
what may cause the problem?
The difference in verbose dmesg, concerning the failing drive is:
With working kernel:
ata3: reset tp1 mask=01 ostat0=7f ostat1=00
With non-working kernel:
ata3: reset tp1 mask=00 ostat0=ff ostat1=00
The mask is different.
Full verbose dmesg from working kernel is available at:
http://www.evip.pl/~w/dmesg-ok-sata.txt
Full verbose dmesg from non-working kernel is available at:
http://www.evip.pl/~w/dmesg-fail-sata.txt
Cheers,
Wiktor Niesiobedzki
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