linux-kernel - Re: READ LOG DMA EXT failed, trying unqueued

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Message-ID: <yq1wq04kcso.fsf@sermon.lab.mkp.net>
Date:	Tue, 19 May 2015 07:49:11 -0400
From:	"Martin K. Petersen" <martin.petersen@...cle.com>
To:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Cc:	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Hannes Reinecke <hare@...e.de>, Tejun Heo <tj@...nel.org>,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: READ LOG DMA EXT failed, trying unqueued

>>>>> "Sergey" == Sergey Senozhatsky <sergey.senozhatsky@...il.com> writes:

Sergey> Hello, my laptop doesn't boot anymore, spinning in "READ LOG DMA
Sergey> EXT failed, trying unqueued".  any reason it loops forever?

Does the patch below help?

Also, please let us know which drive you have and send us the output of:

# smartctl -l gplog,0x13 /dev/sdN

Thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering


diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 2893563d0537..2b370ee0ae86 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1521,6 +1521,7 @@ retry:
 	} else {
 		tf.command = ATA_CMD_READ_LOG_EXT;
 		tf.protocol = ATA_PROT_PIO;
+		dma = false;
 	}
 	tf.lbal = log;
 	tf.lbam = page;


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