netdev - Re: mac80211: 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]

Date:	Fri, 11 Sep 2009 19:07:20 +0300
From:	Kalle Valo <kalle.valo@....fi>
To:	Michael Buesch <mb@...sch.de>
Cc:	linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
	Johannes Berg <johannes@...solutions.net>,
	"John W. Linville" <linville@...driver.com>
Subject: Re: mac80211: NOHZ: local_softirq_pending 08

Michael Buesch <mb@...sch.de> writes:

>> > mac80211 (or some other part of the networking stack) triggers this
>> > warning in the NOHZ code: NOHZ: local_softirq_pending 08
>> >
>> > 08 seems to be NET_RX_SOFTIRQ.
>> >
>> > It happens, because my test driver b43 handles all RX and TX-status
>> > callbacks in process context. I guess some part of the networking
>> > stack expects RX to be in tasklet and/or softirq context.
>> >
>> > We also have a report of this warning in wl1251, so it's probably not
>> > a b43 problem.
>> 
>> Yes, I see this with wl1251. It uses workqueues everywhere.
>> 
>
> This patch seems to fix it.

Yes, it does. Thanks.

> Signed-off-by: Michael Buesch <mb@...sch.de>

Tested-by: Kalle Valo <kalle.valo@...ia.com>

-- 
Kalle Valo
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html