> Quoting Roland Dreier <[EMAIL PROTECTED]>: > Subject: Re: [ofa-general] questions about OFED 1.2 IPoIB bonding > > > > Out of curiousity, why does this cause a catastrophic error? I would > > > have thought a work request with a bogus bus address would generate an > > > affiliated error, since you know exactly resource what caused the bad > > > transaction. > > > It seems bus controller noticed an illegal transaction and started > > aborting all transactions mastered from this misbehaving device. > > I see, that's not really a true catastrophic error -- the mthca code > will report it as one, because polling the the error buffer will get > back all 0xffffffff, but that's just because the HCA has been isolated > from the PCI bus.
No, a read from the error buffer is not mastered at the HCA, so the error buffer actually gets real values. What triggers a catastrophic error is that HCA attempts to perform a transaction such as reading command inbox, and *that* fails. -- MST _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
