Re: crash in tmpfs_itimes since vmlocking2 merge

["Chavdar Ivanov" <ci4ic4%gmail.com@localhost>]

On 21/01/2008, Antti Kantee <pooka%cs.hut.fi@localhost> wrote:
> On Mon Jan 21 2008 at 23:50:20 +0200, Antti Kantee wrote:
> > > /dev/wd0a on / type ffs (read-only, local)
> > > tmpfs on /dev type tmpfs (union, local)
> > >
> > > [snip]
> > >
> > > unmounting /dev (tmpfs)...

Probably related to the above is the crash on reboot from the
installation CD - although in this case it happens umounting mfs. I
have a trace, in case anyone is interested (I guess most on this list
do not use the installation CD to update their everyday systems &^)...

It also started to happen around the same time.

Obviously it does not cause any further trouble, as /targetroot is
already umounted.

> > >
> > > unmounting / (/dev/wd0a)...uvm_fault(0xc0398760, 0xc6984000, 1) -> 0xe
> > >
> > > kernel: supervisor trap page fault, code=0
> >
> > You are trying to modify the vnode for /dev/wd0a to update the access time
> > info, but tmpfs has been garbage collected already when unmounting /dev.
>
> Below is a larger quote from the original mail to show I'm not
> hallucinating with my analysis ;)
>
> > unmounting /dev (tmpfs)...
> >
> > unmounting / (/dev/wd0a)...uvm_fault(0xc0398760, 0xc6984000, 1) -> 0xe
> >
> > kernel: supervisor trap page fault, code=0
> >
> > Stopped in pid 6225.1 (reboot) at       netbsd:tmpfs_itimes+0x2e:       
> > testb
>   $
> >
> > 0xe,0x14(%ebx)
> >
> > db> bt
> >
> > tmpfs_itimes(c56d8ed8,0,0,c56d8f6c,c56d8f64) at netbsd:tmpfs_itimes+0x2e
>
> --
> Antti Kantee <pooka%iki.fi@localhost>                     Of course he runs 
> NetBSD
> http://www.iki.fi/pooka/                          http://www.NetBSD.org/
>     "la qualité la plus indispensable du cuisinier est l'exactitude"
>


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