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Date: Sun, 8 Jun 2003 11:57:04 +0200 (MET DST)
From: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
To: Andi Kleen <ak@suse.de>
cc: <alan@lxorguk.ukuu.org.uk>, <linux-kernel@vger.kernel.org>
Subject: Re: taskfile merge breaking suse hwscan
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On Sun, 8 Jun 2003, Andi Kleen wrote:

> I just tried to boot a recent 2.5 amd64 kernel. Result is that it is
> hanging at boot during SuSE 8.2 hwscan.
>
> Backtrace points to the new IDE taskfile code:
>
> hwscan        D 0000000000000000 18446744073706259928   861    847                     (NOTLB)
>
> Call Trace:<ffffffff80136137>{wait_for_completion+439} <ffffffff802fca2d>{start_request+253}
>        <ffffffff80135910>{default_wake_function+0} <ffffffff802fce94>{ide_do_request+996}
>        <ffffffff80135910>{default_wake_function+0} <ffffffff802fdf36>{ide_do_drive_cmd+710}
>        <ffffffff801cc440>{proc_alloc_inode+64} <ffffffff80303a4b>{ide_diag_taskfile+203}
>        <ffffffff803023f1>{taskfile_lib_get_identify+97} <ffffffff80302e40>{task_in_intr+0}
>        <ffffffff8031477f>{proc_ide_read_identify+111} <ffffffff801d128a>{proc_file_read+234}
>        <ffffffff8018c1b6>{vfs_read+198} <ffffffff8018c3f9>{sys_read+73}
>        <ffffffff80122f06>{ia32_do_syscall+30}
> hdc: lost interrupt

hwscan is trying to read /proc/ide/hdX/identify.
Are you sure its taskfile merge, not something else?

> Followed by more lost interrupt messages.
>
> Any ideas?
>
> -Andi

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