Subject: Re: 1.6 panic from uvm_bio.c
To: Chuck Silvers <email@example.com>
From: Stephen M. Jones <firstname.lastname@example.org>
Date: 11/15/2002 00:04:41
Sorry, both panics occured without a connection to the console The machine
then rebooted. Physical RAM is 1024mb while swap is only 1001mb and I suppose
thats why I'm not getting a crash dump (during a panic will the entire 1024mb
of memory be dumped to an image or only the memory currently in use by the system
when it panics? If the latter, then the swap partition would be fine .. however,
the dumps after the panics are failing.
> there's not enough information here to know what the problem is.
> this isn't a known one.
> do you have a crash dump from this?
> or even just a stack trace?
> On Thu, Nov 14, 2002 at 05:26:25PM -0600, Stephen M. Jones wrote:
> > I was seeing this with the 1.6 distribution and grabbed the 'stable' 1.6
> > code released on Nov 9th and am still seeing this panic.
> > panic: kernel diagnostic assertion "umap->refcount != 0" failed: file "/osys/arch/alpha/compile/NORGE/../../../../uvm/uvm_bio.c", line 253
> > panic: kernel diagnostic assertion "umap->refcount != 0" failed: file "/var/src/src/sys/arch/alpha/compile/ICELAND/../../../../uvm/uvm_bio.c", line 253
> > umap = &ubc_object.umap[ubc_offset >> ubc_winshift];
> > KASSERT(umap->refcount != 0);
> > slot_offset = ubc_offset & (ubc_winsize - 1);
> > Is there a patch for this in current?