Subject: Re: snapshot kernel dying in make depend
To: Charles M. Hannum <email@example.com>
From: Perry E. Metzger <firstname.lastname@example.org>
Date: 05/19/1995 15:23:18
"Charles M. Hannum" writes:
> I've just installed the i386 snapshot on a machine that was working
> fine for some time. The kernel can't manage to find a number of
> important devices -- including the ethernet board -- and has
> hallucinations about others including an mcd device.
> Is your ethernet board at one of the addresses specified in the config
Hard to tell. The config I was building had it in the right place, of
course, which was one of the reasons to build the new one.
> There's very little I can do about the mcd probe falsely recognizing
> devices occasionally; the protocol just sucks.
Thats cool. The real problem is the panic. It would be nice, though,
if the probe didn't print out garbage characters...
> Thinking that the right thing to do would be to build a new kernel
> with most devices not on the machine stripped out of the kernel (which
> usually cures this sort of madness), I began the process with an
> innocent make depend -- which reliably throws me into ddb with a
> I can't *possibly* determine what would cause that without at least a
> stack trace from DDB.
Unfortunately, getting the data off the machine is hard -- this is
just the list of calls as hand-copied. If this sequence tells you
anything, good -- otherwise I'll try to hand transcribe the full list.
_ffs_clusteracct at +0x221
_ffs_blkpref at +0xc31
_ffs_blkpref at +0xc644
_ffs_blkpref at +0x251
_ffs_alloc at +0x138
_ffs_balloc at +0x2c3
_ffs_write at +0x1f3
_vn_write at +0xcc
_write at +0xae
_syscall at +0x1e1