Date: Fri, 2 Feb 1996 20:15:46 -0500 (EST) From: "Marc G. Fournier" <scrappy@ki.net> To: Stefan Esser <se@zpr.uni-koeln.de> Cc: stable@freebsd.org, current@freebsd.org Subject: Re: PR: ASUS PC-SC200 panicks at _scsi_attachdevs+0x20 Message-ID: <Pine.BSF.3.91.960202201028.3257D-100000@ki.net> In-Reply-To: <199602022340.AA01725@Sysiphos>
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On Sat, 3 Feb 1996, Stefan Esser wrote:
> Well, yes, having looked at it, I'd tend to agree :)
>
Apologizes for previous ones...figured it might be one of those
"known" bugs that someone would pop up with "just change this" *sigh*
> void
> scsi_attachdevs(scbus)
> struct scsibus_data *scbus;
> {
> int scsibus;
> struct scsi_link *sc_link_proto = scbus->adapter_link;
>
> if ( (scsibus = scsi_bus_conf(sc_link_proto)) == -1) {
> return;
> }
> /*
> * if the adapter didn't give us this, set a default
> * (compatibility with old adapter drivers)
> */
> if(!(sc_link_proto->opennings)) { <=== openings is at offset 7
> sc_link_proto->opennings = 1;
> }
>
> } Stopped at _scsi_attachdevs+0x20: cmpb $0,0x7(%ebx) <===
>
Stupid question, but how do I read this? I'd like to at least be
able to present the code along with my debug reports, so that everyone
else doesn't have to go searching :)
> Could you please print the value of scbus
> and scbus->adapter_link before the call to
> scsi_attachdevs() and the corresponding
> values within that function ?
>
Okay, but you'll need to tell me how. All I have to work with is
DDB, since I'm not getting a physical dump, and all I know how to use so
far in DDB (all I've ever needed to use) is trace :( I'm going to read
through the man page on DDB right now, and see if I can figure it out, but
it may be faster if someone just tells me what I should be doing, at least
for the first time? :(
> I don't see what's going on here, but I
> don't have a 2.1R tree checked out and
> can't easily build and boot a 2.1R kernel
> currently ...
>
No probs, I don't mind being a guinea pig :) Once I get this
machine upgraded properly, -current is going onto it, but I can't get
-current onto it until I get this controller working (chicken before
egg dilemna :( )
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