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SubjectRe: CPQARRAY driver horribly broken in 2.4.14
Date
Hi,

Thanks a lot for the help. Any particular reason to use the new driver
now or should I just wait until 2.4.15 is release?

Guess I didn't need to do all that debugging. Bug may have already been
caught. 8-)

However I did notice something. The patch you've included below covers
the cciss.c file? My system is using the cpqarray driver. And I fixed the
problem by replacing the cpqarray.[ch], ida_cmd.h, and ida_ioctl.h files. I
don't think the patch below would have done anything for me as I'm pretty
sure the cciss.c file isn't used by the cpqarray driver and since I didn't
change out the cciss.c file in my now working kernel source tree (linux
2.4.14-lkd1 8-D).

----- Original Message -----
From: "J Sloan" <jjs@pobox.com>
To: "Linux Kernel Developer" <linux_developer@hotmail.com>
Cc: <linux-kernel@vger.kernel.org>
Sent: Thursday, November 08, 2001 10:45 PM
Subject: Re: CPQARRAY driver horribly broken in 2.4.14


> Linux Kernel Developer wrote:
>
> > Hi all,
> >
> > I'm using the cpqarray driver for a Compaq Smart Arrat 3100ES
> > controller on a Compaq Proliant 7000. Today I tried upgrading the
kernel to
> > 2.4.14. Soon after the upgrade I though about making a small change in
the
> > kernel however as soon as I tried doing a "make dep" the system oopsed
and
> > froze.
>
> Been there, done that, bought the t-shirt.
>
> The attached patch courtesy of Jens Axboe
> fixed my Compaq 6500 which was giving me
> fits - basically in 2.4.14 it had a nasty habit of
> scribbling on the disk and then locking up,
> requiring a power cycle, manual fsck and
> file restoration to get it running again.
>
> With this patch 2.4.14 has been solid.
>
> cu
>
> jjs
>
>
>


----------------------------------------------------------------------------
----


> --- linux/drivers/block/cciss.c~ Thu Nov 8 11:36:24 2001
> +++ linux/drivers/block/cciss.c Thu Nov 8 11:37:03 2001
> @@ -1307,6 +1307,8 @@
> if (( c = cmd_alloc(h, 1)) == NULL)
> goto startio;
>
> + blkdev_dequeue_request(creq);
> +
> spin_unlock_irq(&io_request_lock);
>
> c->cmd_type = CMD_RWREQ;
> @@ -1386,12 +1388,6 @@
>
> spin_lock_irq(&io_request_lock);
>
> - blkdev_dequeue_request(creq);
> -
> - /*
> - * ehh, we can't really end the request here since it's not
> - * even started yet. for now it shouldn't hurt though
> - */
> addQ(&(h->reqQ),c);
> h->Qdepth++;
> if(h->Qdepth > h->maxQsinceinit)
>
-
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