* Re: shutdown(3) and bluetooth.
[not found] <20131112211125.GA2912@redhat.com>
@ 2013-11-12 21:13 ` David Miller
2013-11-13 14:02 ` John W. Linville
0 siblings, 1 reply; 2+ messages in thread
From: David Miller @ 2013-11-12 21:13 UTC (permalink / raw)
To: davej; +Cc: netdev, linux-bluetooth, linux-wireless
From: Dave Jones <davej@redhat.com>
Date: Tue, 12 Nov 2013 16:11:25 -0500
> Is shutdown() allowed to block indefinitely ? The man page doesn't say either way,
> and I've noticed that my fuzz tester occasionally hangs for days spinning in bt_sock_wait_state()
>
> Is there something I should be doing to guarantee that this operation
> will either time out, or return instantly ?
>
> In this specific case, I doubt anything is on the "sender" end of the socket, so
> it's going to be waiting forever for a state change that won't arrive.
Adding bluetooth and wireless lists. Dave, please consult MAINTAINERS when
asking questions like this, thanks!
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: shutdown(3) and bluetooth.
2013-11-12 21:13 ` shutdown(3) and bluetooth David Miller
@ 2013-11-13 14:02 ` John W. Linville
0 siblings, 0 replies; 2+ messages in thread
From: John W. Linville @ 2013-11-13 14:02 UTC (permalink / raw)
To: David Miller; +Cc: davej, netdev, linux-bluetooth, linux-wireless
On Tue, Nov 12, 2013 at 04:13:50PM -0500, David Miller wrote:
> From: Dave Jones <davej@redhat.com>
> Date: Tue, 12 Nov 2013 16:11:25 -0500
>
> > Is shutdown() allowed to block indefinitely ? The man page doesn't say either way,
> > and I've noticed that my fuzz tester occasionally hangs for days spinning in bt_sock_wait_state()
> >
> > Is there something I should be doing to guarantee that this operation
> > will either time out, or return instantly ?
> >
> > In this specific case, I doubt anything is on the "sender" end of the socket, so
> > it's going to be waiting forever for a state change that won't arrive.
>
> Adding bluetooth and wireless lists. Dave, please consult MAINTAINERS when
> asking questions like this, thanks!
I don't have an authoritative answer. I do, however, seem to recall
that trying to shutdown a SunOS box with a hung NFS mount would seem
to hang forever. I don't think that is a great metric for how we
should behave, of course...
John
--
John W. Linville Someday the world will need a hero, and you
linville@tuxdriver.com might be all we have. Be ready.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2013-11-12 21:13 ` shutdown(3) and bluetooth David Miller
2013-11-13 14:02 ` John W. Linville
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