From: Ben Greear <greearb@candelatech.com>
To: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: Is there no upper limit on mac80211 pending xmit queue size?
Date: Tue, 29 May 2012 14:14:34 -0700 [thread overview]
Message-ID: <4FC53C3A.1080001@candelatech.com> (raw)
The tx pending queues doesn't seem to be limitted, allowing
run-away memory usage when something like pktgen is
sending packets faster than the system can actually
send them.
[root@ct520-2011 ~]# cat /debug/ieee80211/wiphy0/queues
00: 0x00000000/0
01: 0x00000000/0
02: 0x00000001/40076
03: 0x00000000/0
[root@ct520-2011 ~]# cat /debug/ieee80211/wiphy0/queues
00: 0x00000000/0
01: 0x00000000/0
02: 0x00000001/52649
03: 0x00000000/0
[root@ct520-2011 ~]# cat /debug/ieee80211/wiphy0/queues
00: 0x00000000/0
01: 0x00000000/0
02: 0x00000001/107939
03: 0x00000000/0
I think this is what is causing my OOM issues when sending
with (my hacked version of) pktgen.
Shouldn't there be an upper limit on the number of pending frames
that mac80211 will queue?
Thanks,
Ben
--
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
next reply other threads:[~2012-05-29 21:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-29 21:14 Ben Greear [this message]
2012-05-29 21:37 ` Is there no upper limit on mac80211 pending xmit queue size? Dave Taht
2012-05-29 21:41 ` Ben Greear
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