netdev - Re: [Bugme-new] [Bug 14685] New: 2.6.30 -> 2.6.31: very high number of RX dropped in bnx2

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 for Android: free password hash cracker in your pocket

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

Date:	Mon, 30 Nov 2009 09:44:53 -0800
From:	"Michael Chan" <mchan@...adcom.com>
To:	"Krzysztof Oledzki" <ole@....pl>
cc:	"'Andrew Morton'" <akpm@...ux-foundation.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"bugzilla-daemon@...zilla.kernel.org" 
	<bugzilla-daemon@...zilla.kernel.org>,
	"bugme-daemon@...zilla.kernel.org" <bugme-daemon@...zilla.kernel.org>
Subject: Re: [Bugme-new] [Bug 14685] New: 2.6.30 -> 2.6.31: very high
 number of RX dropped in bnx2

On Mon, 2009-11-30 at 07:33 -0800, Krzysztof Oledzki wrote:
> # ethtool -S eth0|egrep "(rx_bcast_packets|rx_mcast_packets|
> rx_fw_discards)"
>       rx_mcast_packets: 2806
>       rx_bcast_packets: 790016
>       rx_fw_discards: 790016

This tells me that all the dropped packets are occurring in the iSCSI
ring.

We have recently enabled iSCSI in the kernel and you probably don't have
the userspace components to handle the iSCSI ring.  All broadcast
packets are also received in the iSCSI ring and they are all dropped in
this case without the userspace components.  Networking is not affected.
If you rmmod the bnx2i and cnic drivers, the drop counter should stop
counting.

We have newer firmware that will not include dropped iSCSI packets in
the networking counters.  It should appear in the 2.6.33 kernel
time-frame.

Thanks.

--
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