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From: Borislav Petkov <bp@alien8.de>
To: Dominic Curran <dominic.curran@citrix.com>
Cc: "linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>
Subject: Re: Possible bug in ide_cd_queue_pc() or ide_wait_stat() ?
Date: Wed, 28 Jul 2010 13:51:07 +0200	[thread overview]
Message-ID: <20100728115107.GA1690@a1.tnic> (raw)
In-Reply-To: <4C500A82.2040805@citrix.com>

From: Dominic Curran <dominic.curran@citrix.com>
Date: Wed, Jul 28, 2010 at 11:46:26AM +0100

Hi Dominik,

> I have some TEAC DV-28E-V CDROM drives that after polling for status
> starts to timeout requests (the time it takes to do this varies
> between 5mins and 24hrs).

Which kernel is that? Can we see a complete dmesg? Which tool does the
polling (udev... )?

> The problem is that even when the requests timeout the ioctl
> CDROM_DRIVE_STATUS will receive a status of CDS_DISC_OK.

Can you add some more instrumentation code to ide_cdrom_drive_status()
to see which "return CDS_DISC_OK" is being hit since there are a couple
of them in that function.

Thanks.

-- 
Regards/Gruss,
Boris.

  reply	other threads:[~2010-07-28 11:51 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-28 10:46 Possible bug in ide_cd_queue_pc() or ide_wait_stat() ? Dominic Curran
2010-07-28 11:51 ` Borislav Petkov [this message]
2010-07-28 15:23   ` Dominic Curran
2010-07-29  8:12     ` Borislav Petkov

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