Re: Fw: PROBLEM: Linux V. 2.6.3 panics with "Buffers at physical address >16Mb used for aha1542" at boot time

Dr. Ernst Molitor
2004-02-20T20:17:36Z

Dear James Bottomley,

thank you very much for your patch; I have applied it, but it does not
appreciably change things. The messages (as far as I can read it - I'm
still missing the first few lines...) have not changed at all, and
booting still ends up in a kernel panic.

I'd be more than happy to check out additional patches ...

Best wishes and regards,

Ernst

On Fri, 2004-02-20 at 08:49 -0800, James Bottomley wrote:

> On Fri, 2004-02-20 at 00:30, Dr. Ernst Molitor wrote:
> > Please don't hesitate to contact me if I can be of any further help in
> > this matter.
>
> The problem seems to be a non-GFP_DMA allocation in sr.c. Could you try
> this patch?
>
> Thanks,
>
> James
>
> ===== drivers/scsi/sr.c 1.98 vs edited =====
> --- 1.98/drivers/scsi/sr.c Mon Feb 9 12:59:10 2004
> +++ edited/drivers/scsi/sr.c Fri Feb 20 08:47:55 2004
> @@ -716,7 +716,7 @@
> set_disk_ro(cd->disk, 1);
>
> /* allocate a request for the TEST_UNIT_READY */
> - SRpnt = scsi_allocate_request(cd->device, GFP_KERNEL);
> + SRpnt = scsi_allocate_request(cd->device, GFP_KERNEL | GFP_DMA);
> if (!SRpnt) {
> printk(KERN_WARNING "(get_capabilities:) Request allocation "
> "failure.\n");
>
>
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