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Re: kern/38762: panic: vwakeup: neg numoutput

2008/9/5 Andreas Gustafsson <>:
> The following reply was made to PR kern/38762; it has been noted by GNATS.
> From: (Andreas Gustafsson)
> To:
> Cc:
> Subject: Re: kern/38762: panic: vwakeup: neg numoutput
> Date: Fri, 5 Sep 2008 15:54:48 +0300
>  Here's a way to reproduce the panic that should work on any NetBSD
>  system.  Unlike the previous methods, this one does not require a
>  live CD, nor a physical scratch device to create a file system on.
>  Simply execute the following sequence of commands as root:
>  mkdir /tmp/dev2
>  mount_null /dev /tmp/dev2
>  dd if=/dev/zero of=/tmp/img bs=1k count=1024
>  vnconfig /dev/vnd0 /tmp/img
>  newfs /dev/rvnd0a
>  mount /tmp/dev2/vnd0a /mnt
>  echo foo >/mnt/bar
>  sync
>  --
>  Andreas Gustafsson,

I don't know if this is related (except the nullfs part), but I have
filed a PR a while ago

regarding panics upon mounting compressed images via vnconfig. (which
is used by mklivecd and jibbed)


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