Date: Sun, 23 Dec 2001 12:43:01 -0800 From: Jamey Wood <Jamey.Wood@Sun.COM> To: freebsd-sparc@freebsd.org Subject: Re: compiling a sparc64 kernel? Message-ID: <1513fe0e8.e0e81513f@smi.sun.com>
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Thanks for the responses and tips. A new cvsup does get things
compiling for me, as you both suggested.
> > Hmmm, well, it should get quite a bit farther. Can you please
> post a
> > backtrace of that panic?
>
> Hmm, indeed. The end=0x0 is puzzling and might cause problems.
I'm new at a lot of this, so I hope this is the trace info you guys
need (from Thomas's kernel):
/kernel data=0x202fb8+0xdfdc0 syms=[0x8+0x36210+0x8+0x2887c]
Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/kernel]...
calling autoload
nothing to autoload yet.
post autoload
jumping to kernel entry at 0xc0030000.
sparc64_init: mdp=0xc0344000 kmdp=0xc0344000 boothowto=0
envp=0xc0342000 end=0x0
panic: trap_dmmu_miss: vmspace NULL
Debugger("panic")
Stopped at 0xc018479c: ta %xcc, 1
db> trace
(null)() at 0xc00ca80c
(null)() at 0xc018a2e8
(null)() at 0xc0189e78
(null)() at 0xc00310d4
(null)() at 0xc0031300
(null)() at 0xc0183ffc
(null)() at 0xc0030034
> A kernel from cvs should work ok, except it won't have support for pci
> devices (which I imagine you don't need anyway). You may need to add
> support for the openfirmware console to GENERIC, device ofw_console.
> If it doesn't drop to the prom, but you don't get any output past the
> loader, try that.
After adding defice ofw_console, I do get a little output from my custom
kernel on boot:
/kernel data=0x1352b8+0x4d2f8 syms=[0x8+0x257e8+0x8+0x1b762]
Hit [Enter] to boot immediately, or any other key for command prompt.
Booting [/kernel]...
calling autoload
nothing to autoload yet.
post autoload
jumping to kernel entry at 0xc0028000.
sparc64_init: mdp=0xc01c6000 kmdp=0xc01c6000 boothowto=0
envp=0xc01c4000 end=0x0
Copyrigh
It just hangs right there, however. I tried sening a break, hoping to
get to the ok or db prompt to do a trace, but even that didn't work. I
had to power-cycle the U1 to get out of that wedged state. And trying
it all again gives the same result.
> I'm away from home for a few days (holidays, back on the 26th), so
> I don't
> have full access to my test machine, but I'll do what I can to help.
Thanks. I'm just about to leave home for the same period, so I won't
be online at all until the 26th.
> To do development you really want the code from perforce. I've
> requested that
> the sparc64 branch be exported via cvsup on cvsup10, but I don't
> know how long
> that will take to get setup.
Okay. I'll keep an eye out for news on this.
--Jamey
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