From: Alexander Atanasov <alex@ssi.bg>
To: Dominik Brodowski <linux@brodo.de>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>,
Alan Cox <alan@lxorguk.ukuu.org.uk>
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 11:55:08 +0200 (EET) [thread overview]
Message-ID: <Pine.LNX.4.21.0303241129420.855-100000@mars.zaxl.net> (raw)
In-Reply-To: <20030323182554.GA1270@brodo.de>
Hello,
On Sun, 23 Mar 2003, Dominik Brodowski wrote:
> Yes, it also works with 2.5.65-bkX.
Dominik, can you try this patch on top of 2.5.65-ac3/bk,
i can't reproduce the hang but it seems that drives without driver can get
both in ata_unused and idedefault_driver.drives and lists go nuts.
It kills ata_unused and uses idedefault_driver.drives only,
boots fine here. I'd guess you have ide-cd as module, and the two drives
handled by it couse the trouble - first joins the lists second couses the
loop.
--
have fun,
alex
===== drivers/ide/ide.c 1.52 vs edited =====
--- 1.52/drivers/ide/ide.c Sun Mar 23 02:00:50 2003
+++ edited/drivers/ide/ide.c Mon Mar 24 08:48:54 2003
@@ -469,7 +469,6 @@
return -ENXIO;
}
-static LIST_HEAD(ata_unused);
static spinlock_t drives_lock = SPIN_LOCK_UNLOCKED;
static spinlock_t drivers_lock = SPIN_LOCK_UNLOCKED;
static LIST_HEAD(drivers);
@@ -1440,9 +1439,6 @@
spin_unlock(&drivers_lock);
if(idedefault_driver.attach(drive) != 0)
panic("ide: default attach failed");
- spin_lock(&drives_lock);
- list_add_tail(&drive->list, &ata_unused);
- spin_unlock(&drives_lock);
return 1;
}
@@ -2399,7 +2395,7 @@
spin_lock(&drives_lock);
INIT_LIST_HEAD(&list);
- list_splice_init(&ata_unused, &list);
+ list_splice_init(&idedefault_driver.drives, &list);
spin_unlock(&drives_lock);
while (!list_empty(&list)) {
next prev parent reply other threads:[~2003-03-24 7:41 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 ` Alexander Atanasov [this message]
2003-03-24 13:59 ` ide: indeed, using list_for_each_entry_safe removes endless looping / hang [Was: Re: 2.5.65-ac2 -- hda/ide trouble on ICH4] Alan Cox
2003-03-24 16:01 ` Alexander Atanasov
2003-03-24 17:40 ` Alan Cox
2003-03-24 17:24 ` Alexander Atanasov
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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