--- Andrew Morton <[email protected]> wrote:
> > On Tue, 5 Dec 2006 21:00:20 -0800 (PST) Luben Tuikov <[email protected]> wrote:
> > --- Michael Reed <[email protected]> wrote:
> > > Luben Tuikov wrote:
> > > ...snip...
> > > > This statement in scsi_io_completion() causes the infinite retry loop:
> > > > if (scsi_end_request(cmd, 1, good_bytes, !!result) == NULL)
> > > > return;
> > >
> > > The code in 2.6.19 is "result==0", not "!!result", which is logically
> > > the same as "result!=0". Did you mean to change the logic here?
> > > Am I missing something?
> >
> > Hmm, I think my trees have !!result from an earlier patch I posted.
> >
> > In this case it would appear that the second chunk of the patch
> > wouldn't be necessary, since result==0 would be false, and it
> > wouldn't retry.
> >
>
> I fixed things up. The below is as-intended, yes?
Yes, thanks!
Luben
>
>
> diff -puN drivers/scsi/scsi_error.c~fix-sense-key-medium-error-processing-and-retry
> drivers/scsi/scsi_error.c
> --- a/drivers/scsi/scsi_error.c~fix-sense-key-medium-error-processing-and-retry
> +++ a/drivers/scsi/scsi_error.c
> @@ -359,6 +359,11 @@ static int scsi_check_sense(struct scsi_
> return SUCCESS;
>
> case MEDIUM_ERROR:
> + if (sshdr.asc == 0x11 || /* UNRECOVERED READ ERR */
> + sshdr.asc == 0x13 || /* AMNF DATA FIELD */
> + sshdr.asc == 0x14) { /* RECORD NOT FOUND */
> + return SUCCESS;
> + }
> return NEEDS_RETRY;
>
> case HARDWARE_ERROR:
> diff -puN drivers/scsi/scsi_lib.c~fix-sense-key-medium-error-processing-and-retry
> drivers/scsi/scsi_lib.c
> --- a/drivers/scsi/scsi_lib.c~fix-sense-key-medium-error-processing-and-retry
> +++ a/drivers/scsi/scsi_lib.c
> @@ -871,7 +871,8 @@ void scsi_io_completion(struct scsi_cmnd
> * are leftovers and there is some kind of error
> * (result != 0), retry the rest.
> */
> - if (scsi_end_request(cmd, 1, good_bytes, result == 0) == NULL)
> + if (good_bytes &&
> + scsi_end_request(cmd, 1, good_bytes, result == 0) == NULL)
> return;
>
> /* good_bytes = 0, or (inclusive) there were leftovers and
> _
>
>
-
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