Date: Sat, 24 Jan 1998 11:19:06 -0700 From: Nate Williams <nate@mt.sri.com> To: Ugo Paternostro <paterno@dsi.unifi.it> Cc: Nate Williams <nate@mt.sri.com>, freebsd-mobile@FreeBSD.ORG Subject: Re: Cirrus Logic PD6729 Message-ID: <199801241819.LAA25873@mt.sri.com> In-Reply-To: <XFMail.980124152655.paterno@dsi.unifi.it> References: <199801230503.WAA19888@mt.sri.com> <XFMail.980124152655.paterno@dsi.unifi.it>
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> On 23-Jan-98 Nate Williams wrote about "Re: Cirrus Logic PD6729": > > The error would probably occur even if you didn't compile DDB. Also, > > No, this behavior first showed up when I added "options DDB" in the kernel > config. Did you re-install the includes? I'm compiling stuff with DDB and I don't have any problems. > >> debugger. Almost any command (but help) prints something like "Panic... blah > >> blah blah". I tried a trace, but it gives no useful information. What should > > > > *grin* Read the handbook on kernel debugging, that should be a big help > > and can give you more information than I can provide in email. > > Well, if I enter the debugger by pressing CTRL-ALT-ESC and then I give a > "Trace" command, I can see the stack trace (it starts form _Debugger(...) and > so on), but if I wait the panic and ask for a trace, I simply see something > like this (I marked with "==>" my commands) (WARNING: hand copied from the > console, may contain errors): Hmm, not good. It should give you a back-trace of the system. You may want to post this kind of information to -stable and see if they know of bugs in the current system. (Note, I'm also having problems getting a back-trace as well when it crashes mounting my DOS partition...) > without any stack trace: it seems that the debugger itself is panicing, right > after accessing location 0x10. Please note that the IP points to that location. Something is hosed up. > Reading the edx value, I could guess it just did or it is going to do and I/O > to that port, and, from the reference to r_hook, I could guess it is something > related to APM (this would also explain why somethimes the machine goes in > sleep mode when I remove the PCMCIA card). Ahh, can you disable APM just for kicks to see if that makes things any better? Nate
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