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From: Shawn Starr <spstarr@sh0n.net>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: 2.5.66-bk5 spinlock warnings/errors - Specifically ide-io:109 spinlock notice
Date: Wed, 2 Apr 2003 14:29:49 -0500
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>List:     linux-kernel
>Subject:  2.5.66-bk5 spinlock warnings/errors
From:     Narayan Desai <desai () mcs ! anl ! gov>
>Date:     2003-04-02 4:01:02

>hda: dma_timer_expiry: dma status == 0x24
>drivers/ide/ide-io.c:109: spin_lock(drivers/ide/ide.c:c037abe8) already 
>locked by drivers/ide/ide-io.c/948 drivers/ide/ide-io.c:990: 
>spin_unlock(drivers/ide/ide.c:c037abe8) not locked
>hda: lost interrupt
>hda: dma_intr: bad DMA status (dma_stat=30)
>hda: dma_intr: status=0x50 { DriveReady SeekComplete }

I had this problem last night while making a huge debian package (tar.bz2 
stage). It occured once.

Switching to Debian unstable and already two new interesting kernel notices 
and one 3c59x  NETDEV Watchdog - eth0 transmit timeout bug.