2007-05-01 13:42:46

by Alan

[permalink] [raw]
Subject: Re: BAD_SG_DMA panic in aha1542

> That's as close as it gets without redoing everything from scratch.
> I'll give Alan's and James' patches a go within the next 13 hours.
>
> (Alan: what *else* would you name a variable associated with a bounce
> buffer besides Zebedee? Thanks for the occasion to smile...)

The one I sent has a memory leak but it won't matter for basic testing.
Or you can change the final bit to


scsi_normalize_sense((char *)sense, sizeof(*sense), &sshdr);

if (zebedee != cgc->buffer) {
if (cgc->data_direction == DMA_FROM_DEVICE)
memcpy(cgc->buffer, zebedee, cgc->buflen);
kfree(zebedee); /* Time for bed */
}

Alan
--

`I can hear you.` ,said Florence. `It s not true. Noddy and I are just
good friends.`


2007-05-01 18:32:34

by Bob Tracy

[permalink] [raw]
Subject: Re: BAD_SG_DMA panic in aha1542

Alan Cox wrote:
> The one I sent has a memory leak but it won't matter for basic testing.
> Or you can change the final bit to
>
>
> scsi_normalize_sense((char *)sense, sizeof(*sense), &sshdr);
>
> if (zebedee != cgc->buffer) {
> if (cgc->data_direction == DMA_FROM_DEVICE)
> memcpy(cgc->buffer, zebedee, cgc->buflen);
> kfree(zebedee); /* Time for bed */
> }

I changed it, because I'll be living with this for a while I'd bet...

Works fine. No more BAD_SG_DMA() calls. Thanks!

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