From: Thomas Monjalon <thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
To: dev-VfR2kkLFssw@public.gmane.org
Subject: Re: [PATCH RFC 1/3] eal/bsd: fix fd leak
Date: Thu, 25 Sep 2014 12:17:49 +0200 [thread overview]
Message-ID: <2401333.1lgWLEPGnW@xps13> (raw)
In-Reply-To: <1409062300-17004-2-git-send-email-david.marchand-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
Hi,
Is there any BSD users available to test this patch?
I'd like to add this comment in the log:
----
"The initial implementation simply raised the IOPL of the current thread
when open(2) was called on the device. This behaviour is retained in the
current implementation as legacy support for both i386 and amd64."
http://www.freebsd.org/cgi/man.cgi?query=io&sektion=4
Nothing prevents from closing it just after.
----
But it should be tested with virtio to check iopl permissions.
Thanks
--
Thomas
2014-08-26 16:11, David Marchand:
> Signed-off-by: David Marchand <david.marchand-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
> ---
> lib/librte_eal/bsdapp/eal/eal.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/lib/librte_eal/bsdapp/eal/eal.c b/lib/librte_eal/bsdapp/eal/eal.c
> index a296da5..0697b05 100644
> --- a/lib/librte_eal/bsdapp/eal/eal.c
> +++ b/lib/librte_eal/bsdapp/eal/eal.c
> @@ -810,6 +810,7 @@ rte_eal_iopl_init(void)
> fd = open("/dev/io", O_RDWR);
> if (fd < 0)
> return -1;
> + close(fd);
> return 0;
> }
next prev parent reply other threads:[~2014-09-25 10:17 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-26 14:11 [PATCH RFC 0/3] only call iopl when necessary David Marchand
[not found] ` <1409062300-17004-1-git-send-email-david.marchand-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
2014-08-26 14:11 ` [PATCH RFC 1/3] eal/bsd: fix fd leak David Marchand
[not found] ` <1409062300-17004-2-git-send-email-david.marchand-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
2014-09-25 10:17 ` Thomas Monjalon [this message]
2014-08-26 14:11 ` [PATCH RFC 2/3] eal: don't call rte_eal_iopl_init unconditionnally David Marchand
[not found] ` <1409062300-17004-3-git-send-email-david.marchand-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
2014-08-27 17:26 ` Xie, Huawei
2014-08-26 14:11 ` [PATCH RFC 3/3] eal: remove unused flags field David Marchand
2014-08-27 9:22 ` [PATCH RFC 0/3] only call iopl when necessary Xie, Huawei
[not found] ` <C37D651A908B024F974696C65296B57B0F27CBA6-0J0gbvR4kThpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-08-27 9:34 ` David Marchand
[not found] ` <CALwxeUvLCsAcQuxyRz-cES5GSnS9ApBQNbh4c9OFvW=UQL3+hg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-08-27 9:57 ` Xie, Huawei
[not found] ` <C37D651A908B024F974696C65296B57B0F27CC9A-0J0gbvR4kThpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-08-27 10:04 ` David Marchand
[not found] ` <CALwxeUvB0XKr7AUGHLDh6NgsEmGWkELOAX=NQMDk5FML7Ptbmg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-08-27 10:09 ` Xie, Huawei
[not found] ` <C37D651A908B024F974696C65296B57B0F27CCED-0J0gbvR4kThpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-08-27 10:24 ` Thomas Monjalon
2014-08-27 21:22 ` Patel, Rashmin N
[not found] ` <C68F1134885B32458704E1E4DA3E34F341A2D6DF-AtyAts71sc9qS6EAlXoojrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2014-08-27 22:12 ` Stephen Hemminger
2014-09-29 12:44 ` Thomas Monjalon
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