Re: READ LOG DMA EXT failed, trying unqueued

From: Sergey Senozhatsky
Date: Tue May 19 2015 - 08:11:20 EST


On (05/19/15 07:49), Martin K. Petersen wrote:
> 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?
>

it does.

Reported-and-tested-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>

-ss

> 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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