* 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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