Re: epoll behaviour after running out of descriptors
- From: "Olaf van der Spek" <olafvdspek@xxxxxxxxx>
- Date: Mon, 3 Nov 2008 09:07:40 +0100
On Sun, Nov 2, 2008 at 11:49 PM, Davide Libenzi <davidel@xxxxxxxxxxxxxxx> wrote:
At the time of the first EMFILE, you've filled up the fd space, but not
the kernel listen backlog. Additions to the backlog, triggers new events,
Shouldn't ET only fire again *after* you drained the queue? When
accept returns EMFILE, you did not drain the queue.
that you see after the first EMFILE. At a given point, the backlog is
full, so no new half connections are dropped in there, so no new events
are generated.
The backlog is 128 entries though, I don't see that many EMFILEs.
Again, sleeping on (EMFILE && ET) is bad mojo,
It's not always best to free up descriptors right away.
and nowhere is written that
events should be generated in the EMFILE->no-EMFILE transitions.
That's true, but I'm saying that this might be handy to have.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
- References:
- epoll behaviour after running out of descriptors
- From: Olaf van der Spek
- Re: epoll behaviour after running out of descriptors
- From: Davide Libenzi
- Re: epoll behaviour after running out of descriptors
- From: Olaf van der Spek
- Re: epoll behaviour after running out of descriptors
- From: Davide Libenzi
- Re: epoll behaviour after running out of descriptors
- From: Olaf van der Spek
- Re: epoll behaviour after running out of descriptors
- From: Davide Libenzi
- Re: epoll behaviour after running out of descriptors
- From: Olaf van der Spek
- Re: epoll behaviour after running out of descriptors
- From: Davide Libenzi
- Re: epoll behaviour after running out of descriptors
- From: Olaf van der Spek
- Re: epoll behaviour after running out of descriptors
- From: Davide Libenzi
- epoll behaviour after running out of descriptors
- Prev by Date: Re: sound: struct device - replace bus_id with dev_name(), dev_set_name()
- Next by Date: 2.6.28-rc3: usb_hcd_poll_rh_status: array subscript is above array bounds
- Previous by thread: Re: epoll behaviour after running out of descriptors
- Next by thread: Problems with the block-layer timeouts
- Index(es):
Relevant Pages
|