linux-kernel - Re: NOHZ: local_softirq

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4AD2E8C8.4060205@imap.cc>
Date:	Mon, 12 Oct 2009 10:28:56 +0200
From:	Tilman Schmidt <tilman@...p.cc>
To:	Johannes Berg <johannes@...solutions.net>
CC:	Dave Young <hidave.darkstar@...il.com>,
	linux-kernel@...r.kernel.org, tglx@...utronix.de,
	linux-wireless <linux-wireless@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>, linux-ppp@...r.kernel.org,
	netdev@...r.kernel.org, Paul Mackerras <paulus@...ba.org>
Subject: Re: NOHZ: local_softirq_pending 08

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

[CCing PPP people]

Am 11.10.2009 13:40 schrieb Johannes Berg:
> On Sun, 2009-10-11 at 13:18 +0200, Tilman Schmidt wrote:
> 
>> Can you explain a bit more what that message is about?
>> I am encountering it in a completely different context
>> (PPP over ISDN) [...]
> 
> Basically, calling netif_rx() with softirqs enabled.

AFAICS that would have to be the netif_rx() call in
ppp_receive_nonmp_frame() [drivers/net/ppp_generic.c#L1791],
called (via others) from the tasklet work function
ppp_sync_process() [drivers/net/ppp_synctty.c#L545].
Should that be changed to the
"if (in_interrupt()) netif_rx(skb) else netif_rx_ni(skb)"
stanza from the linux.kernel.wireless.general thread then?

Thanks,
Tilman

- --
Tilman Schmidt                    E-Mail: tilman@...p.cc
Bonn, Germany
Diese Nachricht besteht zu 100% aus wiederverwerteten Bits.
Ungeöffnet mindestens haltbar bis: (siehe Rückseite)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.4 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFK0ujIQ3+did9BuFsRAtGBAJ9rj2pyQZ75ZKTipLhpICqA3ZvTdQCdHQs/
RmdeOT3TuPZykXJxcHLJCzU=
=87DI
-----END PGP SIGNATURE-----
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/