On (05/19/15 20:33), Sergey Senozhatsky wrote:
> my laptop doesn't boot anymore, spinning in "READ LOG DMA EXT failed, trying unqueued".
> any reason it loops forever?
>
perhaps something like this?
8<-----8<-----
>From 826eb3644e7d4b1f66a898c63865f217fb82f1f9 Mon Sep 17 00:00:00 2001
From: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Date: Tue, 19 May 2015 20:54:18 +0900
Subject: [PATCH] ata: do not retry ata_read_log_page() forever
Do not spin on failing ata_exec_internal() forever, make a one shot
ATA_HORKAGE_NO_NCQ_LOG retry.
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
---
drivers/ata/libata-eh.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index f093174..20f1549 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1531,7 +1531,7 @@ retry:
err_mask = ata_exec_internal(dev, &tf, NULL, DMA_FROM_DEVICE,
buf, sectors * ATA_SECT_SIZE, 0);
- if (err_mask && dma) {
+ if (err_mask && dma && !(dev->horkage & ATA_HORKAGE_NO_NCQ_LOG)) {
dev->horkage |= ATA_HORKAGE_NO_NCQ_LOG;
ata_dev_warn(dev, "READ LOG DMA EXT failed, trying unqueued\n");
goto retry;
--
2.4.1.168.g1ea28e1
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