From: Arjan van de Ven <arjanv@redhat.com>
To: Bernhard Kaindl <bernhard.kaindl@gmx.de>
Cc: "Erik A. Hendriks" <hendriks@lanl.gov>, linux-kernel@vger.kernel.org
Subject: Re: ptrace + ioctl( LOOP_SET_FD ) brokeness.
Date: Fri, 14 Nov 2003 14:29:18 +0100 [thread overview]
Message-ID: <1068816558.5206.0.camel@laptop.fenrus.com> (raw)
In-Reply-To: <Pine.LNX.4.56.0311141243030.19155@wotan.suse.de>
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On Fri, 2003-11-14 at 14:09, Bernhard Kaindl wrote:
> The reason for the process hang seems to be the way loop_set_fd calls calls
> kernel_thread():
>
> kernel_thread(loop_thread, lo, CLONE_FS | CLONE_FILES | CLONE_SIGHAND);
> down(&lo->lo_sem); <- This seems to wait for loop_thread()
>
> Since kernel_thread can fail at the moment, all places where it is
> called would need to be checked and error handling added.
kernel_thread could fail even before, after all it allocates memory.
So this code has always been buggy just harder to trigger
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prev parent reply other threads:[~2003-11-14 13:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-13 21:55 Erik A. Hendriks
2003-11-14 13:09 ` Bernhard Kaindl
2003-11-14 13:29 ` Arjan van de Ven [this message]
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