RE: 2.4.4-ac5 aic7xxx causes hang on my machine

[=?us-ascii?Q?Oyvind_Jagtnes?=]

It works fine on my dual ppro 200 (not sure what mobo). Here is lcpci:

00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02)
00:06.0 Ethernet controller: Intel Corporation 82557 [Ethernet Pro 100] (rev
01)
00:07.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II]
(rev 01)
00:07.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton
II]
00:09.0 SCSI storage controller: Adaptec AIC-7880U
00:11.0 VGA compatible controller: S3 Inc. 86c764/765 [Trio32/64/64V+]

It has 2 atlas iv disks attached + 3 ide disks. Boots from ide and running
scsi disks in lvm.

Oyvind Jagtnes

-----Original Message-----
From: [e-mail]
[mailto:[e-mail]]On Behalf Of Andy Carlson
Sent: 7. mai 2001 15:04
To: [e-mail]
Subject: 2.4.4-ac5 aic7xxx causes hang on my machine

I have a dual ppro 200MHZ W6LI motherboard.  I put 2.4.4-ac5 on last
night, and the machine hung at Freeing unused Kernel memory.  I
selectively backed off what I thought were relevant patches.  I got to
aic7xxx, and ac5 without it worked. I attached /proc/scsi/aic7xxx/0.

Andy Carlson                           |\      _,,,---,,_
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Cat Pics: http://andyc.dyndns.org

On Mon, 7 May 2001, Christoph Rohland wrote:

> Hi,
>
> The appended patch does it's own accounting of shmem pages and adjust
> the page cache size to take these into account. So now again you will
> see shmem pages as used in top/vmstat etc. This confused a lot of
> people.
>
> There is a uncertainty in the calculations since the vm may drop pages
> behind shmem and the number of shmem pages is estimated too high. This
> especially happens on truncate because first the page cache is reduced
> and later the shmem readjusts it's count.
>
> To prevent negative cache sizes the adjustment is only done if
> shmem_nrpages > page_cache_size.
>
> The latter part of the patch (all the init.c files) also exports the
> shmem page number to the shared memory field in meminfo. This means a
> change in semantics of this field but apparently a lot of people
> interpret this field exactly this way and it was not used any more
>
> The patches are on top of my encapsulation patch.
>
> Greetings
> 		Christoph
>