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Date:      Mon, 4 May 1998 07:47:41 -0500 (CDT)
From:      dave adkins <adkin003@tc.umn.edu>
To:        John Dyson <dyson@FreeBSD.ORG>
Cc:        freebsd-current@FreeBSD.ORG
Subject:   Re: cvs commit: src/sys/kern sysv_shm.c src/sys/vm swap_pager.c         vm_fault.c vm_map.c
Message-ID:  <Pine.NEB.3.96.980504073603.1070A-100000@samthedog>
In-Reply-To: <199805040301.UAA24829@freefall.freebsd.org>

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On Sun, 3 May 1998, John Dyson wrote:

> dyson       1998/05/03 20:01:45 PDT
> 
>   Modified files:
>     sys/kern             sysv_shm.c 
>     sys/vm               swap_pager.c vm_fault.c vm_map.c 
>   Log:
>   Work around some VM bugs, the worst being an overly aggressive
>   swap space free calculation.  More complete fixes will be forthcoming,
>   in a week.
>   
>   Revision  Changes    Path
>   1.36      +5 -1      src/sys/kern/sysv_shm.c
>   1.95      +11 -8     src/sys/vm/swap_pager.c
>   1.83      +3 -2      src/sys/vm/vm_fault.c
>   1.124     +25 -15    src/sys/vm/vm_map.c
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe cvs-all" in the body of the message
> 
> 

Hi,

SYSVSHM causes a panic in vm_object_deallocate() with the message:

vm_object_deallocate: ref_count: 1, shadow_count: 1

This happens when the last reference to a sysv memory region is 
deleted.


dave adkins



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