Date: Sun, 29 Mar 1998 09:35:37 -0600 From: Chris Csanady <ccsanady@friley585.res.iastate.edu> To: The Hermit Hacker <scrappy@hub.org> Cc: freebsd-scsi@freebsd.org Subject: Re: Signal 11's.. (and SCB problems) Message-ID: <199803291535.JAA18988@friley585.res.iastate.edu> In-Reply-To: Your message of "Sun, 29 Mar 1998 03:56:01 -0400." <Pine.BSF.3.96.980329035245.1536D-100000@thelab.hub.org>
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>On Sat, 28 Mar 1998, Chris Csanady wrote: > >> While building a world, I recently noticed that I was getting random >> signal 11's. I was under the impression that this was fixed earlier, >> is this correct? >> >> I suppose this is probably related to the SCB problems, but I can't >> say. Is anyone else seeing similar problems? >> >> Regardless, SMP is still miserable here. I seem to have similar SCB >> hangs (that I mentioned earlier) running UP as well, although they >> are fairly rare. > > UP == UniProcessor? Yep. > If so, would SCB explain why, with an adaptec 2940UW controller >and SCB enabled, I'm seeing what *feel* like SCSI bus hangs? Where I can >telnet to the machine, get the beginnings of the 'login', but no login >prompt? Machine is still pingable and everything? Yes, this sounds about right. If you wait a really really long time, you may actually get a login. At least that has been my experience.. > My configure has the following lines: > >controller ahc0 >options AHC_SCBPAGING_ENABLE >options AHC_TAGENABLE >options AHC_ALLOW_MEMIO I have actually tried removing the AHC_SCBPAGING_ENABLE and AHC_TAGENABLE lines, although that does not seem to help under SMP. I have not tried that without SMP though. > And the system is running STABLE... Hmm.. This is not really what I wanted to hear. :( I was under the impression that this was a current breakage. A while back, even SMP was actually stable on my machine. I am currently steping back my machine till late last year to see if it's a hardware issue. If not, I may try to incrementally find where the exact breakage occurred. > IF the SCB should be removed, what about the other two? Any >similar problems known with those? I think it is fairly safe to leave the AHC_ALLOW_MEMIO option in. Chris Csanady To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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