On 03/28/2014 06:49 PM, James Bottomley wrote:
> The abort state is being stored persistently across commands, meaning if the
> command times out a second time, the error handler thinks an abort is still
> pending. Fix this by properly resetting the abort flag after the abort is
> finished.
>
> Signed-off-by: James Bottomley <JBottomley@xxxxxxxxxxxxx>
> ---
> drivers/scsi/scsi_error.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
> index 771c16b..b9f3b07 100644
> --- a/drivers/scsi/scsi_error.c
> +++ b/drivers/scsi/scsi_error.c
> @@ -869,10 +869,13 @@ static int scsi_try_bus_device_reset(struct scsi_cmnd *scmd)
>
> static int scsi_try_to_abort_cmd(struct scsi_host_template *hostt, struct scsi_cmnd *scmd)
> {
> - if (!hostt->eh_abort_handler)
> - return FAILED;
> + int retval = FAILED;
> +
> + if (hostt->eh_abort_handler)
> + retval = hostt->eh_abort_handler(scmd);
>
> - return hostt->eh_abort_handler(scmd);
> + scmd->eh_eflags &= ~SCSI_EH_ABORT_SCHEDULED;
> + return retval;
> }
>
> static void scsi_abort_eh_cmnd(struct scsi_cmnd *scmd)
>
Hmm. No, I don't think this is correct.
SCSI_EH_ABORT_SCHEDULED signifies whether scmd_eh_abort_handler()
needs to run. As such it needs to be reset when the workqueue item
is triggered.
Can you try with this instead?
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 771c16b..9694803 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -120,6 +120,8 @@ scmd_eh_abort_handler(struct work_struct *work)
struct scsi_device *sdev = scmd->device;
int rtn;
+ scmd->eh_eflags &= ~SCSI_EH_ABORT_SCHEDULED;
+
if (scsi_host_eh_past_deadline(sdev->host)) {
SCSI_LOG_ERROR_RECOVERY(3,
scmd_printk(KERN_INFO, scmd,
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@xxxxxxx +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
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