amd64/123456: /usr/bin/fstat shows error messages and hang.

John Baldwin jhb at freebsd.org
Wed May 7 19:00:32 UTC 2008


On Tuesday 06 May 2008 06:53:42 am KOIE Hidetaka wrote:
> >Description:
>         fstat -v shows error message like this:
>                 can't read vnode at 0x0 for pid ***
>                 can't read znode_phys at 0x**** for pid ***
>                 unknown file type 5 for file 5 of pid ***
> 
>         fstat / hangs.
> 
> >How-To-Repeat:
> 
> >Fix:
>         Patch for "can't read vnode at 0x0 for pid ***":
>         vtrans() is invoked iff vp is not null.
> 
>         Patch for "can't read znode_phys at 0x**** for pid ***":
>         znode_phys is void *, not int.
> 
>         Patch for "unknown file type 5 for file 5 of pid ***":
>         consider other DTYPEs.
> 
>         Patch for hanging:
>         sysctl "debug.sizeof.znode" returns int, not size_t.

I've applied all of the fixes except for the 3rd one.  I think that each file 
type should show up as unknown until support for it is added to fstat.

-- 
John Baldwin


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