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Date:      Wed, 12 Dec 2001 19:11:38 +0100
From:      Willem van Engen <wvengen@stack.nl>
To:        freebsd-emulation@freebsd.org
Subject:   Re: flexlm: works with linux_base-6, fails with linux_base-7
Message-ID:  <20011212191138.47c477fc.wvengen@stack.nl>

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On Wed, 12 Dec 2001 08:59:39 -0500 (EST)
"Andrew Gallatin" <gallatin@cs.duke.edu> wrote:

> 
> Willem van Engen writes:
>  > > I don't see anything obvious either.  Are you sure that the 
>  > > bsd_flock contains the same thing in the linux_base-6 case?
>  > Acutally no, there is a difference. I got lost in printf %[l][l]x stuff.
>  > 
>  > linux_base-7:
>  >   linux(2810): fcntl64(4, 00000006, *)
>  >   > fcntl_bsd(4, F_SETLK, flock)
>  >   > bsd.l_start = 0, lin.l_start = 0
>  >   > bsd.l_len = bfbff15000000000, lin.l_len = bfbff15000000000
>  >   > bsd.l_pid= 280cbc80, lin.l_pid = 280cbc80
>  >   > bsd.l_type= 3, lin.l_type = 1
>  >   > bsd.l_whence= 1, lin.l_whence = 1
>  > linux_base-6:
>  >   linux(2801): fcntl(4, 00000006, *)
>  >   > fcntl_bsd(4, F_SETLK, flock)
>  >   > bsd.l_start = 0, lin.l_start = 0
>  >   > bsd.l_len = 0, lin.l_len = 0
>  >   > bsd.l_pid= 0, lin.l_pid = 0
>  >   > bsd.l_type= 3, lin.l_type = 1
>  >   > bsd.l_whence= 1, lin.l_whence = 1
> 
> I think that linux ignores at least the pid field & replaces it with
> the pid of the current process.  I haven't looked at the guts of their
> flock to see if they ignore len as well.  I think if you zero those 2
> fields in linux_to_bsd_flock64, you'll be fine.  
Yep, this hack works! (well, matlab doens't run yet but the license
manager does).
Thanks a lot, now I can at least use it!

- Willem


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