From: Alexander Atanasov <alex@ssi.bg>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: linux@brodo.de, linux-kernel@vger.kernel.org,
B.Zolnierkiewicz@elka.pw.edu.pl
Subject: Re: ide: indeed, using list_for_each_entry_safe removes endless looping / hang [Was: Re: 2.5.65-ac2 -- hda/ide trouble on ICH4]
Date: Mon, 24 Mar 2003 19:24:51 +0200 [thread overview]
Message-ID: <20030324192451.13aa10b2.alex@ssi.bg> (raw)
In-Reply-To: <1048527607.25655.18.camel@irongate.swansea.linux.org.uk>
Hello, Alan!
On 24 Mar 2003 17:40:08 +0000
Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> On Mon, 2003-03-24 at 16:01, Alexander Atanasov wrote:
> > I don't understand, what's the difference and how the list is
> > lost?
> > ata_unused used to hold all drives that were not claimed by any
> > driver, now idedefault_driver claims all that drives, all drives go
> > in the .list
>
> ata_unused -> unattached device slots, new hotplug discoveries
Ok.
> idedefault_driver -> attached/known devices with no driver
> other list -> driven by that driver
>
> > The bug is there, and waiting to explode, keeping both lists would
> > mean to add one more list head in ide_drive_t, is that the fix
> > you want?
>
> I don't see where stuff is ending up on both lists yet. I've not had
> time to look hard at it though
>
It happens this way:
ide_register_driver -> ata_attach -> idedefault_driver.attach -> ide_register_subdriver -> list_add(&driver->list, &driver->drives) ->
return to ata_attach -> list_add_tail(&drive->list, &ata_unused);
--
have fun,
alex
next prev parent reply other threads:[~2003-03-24 17:20 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-22 14:03 2.5.65-ac2 -- hda/ide trouble on ICH4 Dominik Brodowski
2003-03-22 16:35 ` Alan Cox
2003-03-22 16:25 ` Dominik Brodowski
2003-03-22 17:42 ` Alan Cox
2003-03-22 16:39 ` Jan Dittmer
2003-03-23 1:03 ` Dominik Brodowski
2003-03-23 15:47 ` Alan Cox
2003-03-23 14:59 ` Dominik Brodowski
2003-03-23 18:41 ` Alan Cox
2003-03-23 18:15 ` Dominik Brodowski
2003-03-23 18:25 ` ide: indeed, using list_for_each_entry_safe removes endless looping / hang [Was: Re: 2.5.65-ac2 -- hda/ide trouble on ICH4] Dominik Brodowski
2003-03-23 22:16 ` Jan Dittmer
2003-03-24 11:08 ` PROBLEM: linux-2.5.65-ac3 does not boot whith IDE-drivers Norbert Wolff
2003-03-24 13:54 ` Alan Cox
2003-03-24 9:55 ` ide: indeed, using list_for_each_entry_safe removes endless looping / hang [Was: Re: 2.5.65-ac2 -- hda/ide trouble on ICH4] Alexander Atanasov
2003-03-24 13:59 ` Alan Cox
2003-03-24 16:01 ` Alexander Atanasov
2003-03-24 17:40 ` Alan Cox
2003-03-24 17:24 ` Alexander Atanasov [this message]
2003-03-25 4:16 ` Andre Hedrick
2003-03-25 13:59 ` Alan Cox
2003-03-25 20:05 ` Bartlomiej Zolnierkiewicz
2003-03-25 20:24 ` Bartlomiej Zolnierkiewicz
2003-04-03 7:00 ` PATCH:ide_do_reset() fix for 2.5.66 rain.wang
2003-04-03 7:16 ` Jens Axboe
2003-04-03 8:36 ` PATCH RFC :ide_do_reset() " rain.wang
2003-04-10 3:37 ` [rfc][patch]: fix handler race in HDIO_DRIVE_RESET path for 2.5.67-ac1 rain.wang
2003-03-22 22:03 ` [PATCH] Re: 2.5.65-ac2 -- hda/ide trouble on ICH4 Bartlomiej Zolnierkiewicz
2003-03-22 23:27 ` Alan Cox
2003-03-22 22:33 ` Bartlomiej Zolnierkiewicz
2003-03-23 9:11 ` Dominik Brodowski
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