linux-kernel - Re: 2.6.21-mm1: many processes end up in D state

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Date:	Mon, 07 May 2007 11:52:45 +0200
From:	Jiri Slaby <jirislaby@...il.com>
To:	Mikael Pettersson <mikpe@...uu.se>
CC:	htejun@...il.com, akpm@...l.org, jgarzik@...ox.com,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	stable@...nel.org
Subject: Re: 2.6.21-mm1: many processes end up in D state

Mikael Pettersson napsal(a):
> Jiri: please test the patch below instead. That is, revert to
> the original code _with_ the 'return 1;', and then add this
> patch to it. It should have pretty much the same effect as
> removing the 'return 1;', however calling ata_port_abort()
> is more in line with libata's new-style error handling.
> 
> /Mikael
> 
> --- linux-2.6.21-mm1/drivers/ata/sata_promise.c.~1~	2007-05-05 22:24:41.000000000 +0200
> +++ linux-2.6.21-mm1/drivers/ata/sata_promise.c	2007-05-05 22:25:21.000000000 +0200
> @@ -653,6 +653,8 @@ static void pdc_error_intr(struct ata_po
>  	qc->err_mask |= ac_err_mask;
>  
>  	pdc_reset_port(ap);
> +
> +	ata_port_abort(ap);
>  }
>  
>  static inline unsigned int pdc_host_intr( struct ata_port *ap,
> 

Yes, no freezing anymore.

thanks,
-- 
http://www.fi.muni.cz/~xslaby/            Jiri Slaby
faculty of informatics, masaryk university, brno, cz
e-mail: jirislaby gmail com, gpg pubkey fingerprint:
B674 9967 0407 CE62 ACC8  22A0 32CC 55C3 39D4 7A7E
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