Date: Sat, 9 Sep 2000 17:22:04 +0200 From: Bernd Walter <ticso@cicely5.cicely.de> To: Matthew Jacob <mjacob@feral.com>, dfr@freebsd.org Cc: Christian Weisgerber <naddy@mips.inka.de>, freebsd-alpha@freebsd.org Subject: Re: cvs commit: src/sys/pci pcisupport.c (fwd) Message-ID: <20000909172204.A17373@cicely5.cicely.de> In-Reply-To: <20000909141749.A13527@cicely5.cicely.de>; from ticso@cicely5.cicely.de on Sat, Sep 09, 2000 at 02:17:49PM %2B0200 References: <20000908221428.B12535@cicely5.cicely.de> <Pine.LNX.4.21.0009081455170.15724-100000@zeppo.feral.com> <20000909141749.A13527@cicely5.cicely.de>
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On Sat, Sep 09, 2000 at 02:17:49PM +0200, Bernd Walter wrote:
> On Fri, Sep 08, 2000 at 02:55:56PM -0700, Matthew Jacob wrote:
> >
> > This is what is broken for me too. I have not been able to really trace it
> > down yet. I don't have the halt switch set up.
>
> If I hardcode cia_pcib_read_config() and cia_pcib_write_config() to
> use bwx the machine boots at least into singleuser - not tested more yet.
> What is the special deal with the swiz stuff?
> As far As I understood it hangs on the first width 2 read access which is the
> second acces to the first available device. While the width 4 acces to probe
> for existence succeded.
>
> > > > pci0: physical bus=0
> > > > cia_pcib_read_config: b=0, s=0, f=0, reg=0, width=4
> > > > cia_pcib_read_config: b=0, s=1, f=0, reg=0, width=4
> > > > cia_pcib_read_config: b=0, s=2, f=0, reg=0, width=4
> > > > cia_pcib_read_config: b=0, s=3, f=0, reg=0, width=4
> > > > cia_pcib_read_config: b=0, s=4, f=0, reg=0, width=4
> > > > cia_pcib_read_config: b=0, s=5, f=0, reg=0, width=4
> > > > cia_pcib_read_config: b=0, s=5, f=0, reg=0, width=2
I was able to use it but got a panic after starting cvsup:
fatal kernel trap:
trap entry = 0x2 (memory management fault)
a0 = 0x0
a1 = 0x1
a2 = 0x0
pc = 0xfffffc00005168c8
ra = 0xfffffc0000516f70
curproc = 0xfffffe000a39c440
pid = 2476, comm = cvsup
Stopped at mtx_exit_hard+0x108: ldq t1,0(s1) <0x0> <t1=0x1,s1=0x0>
db> trace
mtx_exit_hard() at mtx_exit_hard+0x108
userret() at userret+0x1d0
trap() at trap+0x828
XentMM() at XentMM+0x20
(null)() at 0x120270038
I don't know if it is because of my changes, the SMPng code or
something else.
I would asume it's because of SMPng
--
B.Walter COSMO-Project http://www.cosmo-project.de
ticso@cicely.de Usergroup info@cosmo-project.de
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