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

James Bottomley
2004-02-20T16:49:30Z

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");