netdev - Re: Bug#644281: linux-image-3.0.0-1-amd64: problem after changing mtu size on jme kernel module

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-next>] [day] [month] [year] [list]

Message-ID: <1317961087.4024.28.camel@deadeye>
Date:	Fri, 07 Oct 2011 05:17:52 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	Guo-Fu Tseng <cooldavid@...ldavid.org>
Cc:	644281@...s.debian.org, kantacki <kantacki@...pl>,
	netdev <netdev@...r.kernel.org>
Subject: Re: Bug#644281: linux-image-3.0.0-1-amd64: problem after changing
 mtu size on jme kernel module

On Tue, 2011-10-04 at 20:13 +0200, kantacki wrote:
> Package: linux-2.6
> Version: 3.0.0-3
> Severity: important
> Tags: upstream
> 
> Hello,
> 
> When I try to execute:
> ifconfig eth0 mtu 4000 up
> or
> ifconfig eth0 mtu 7198 up
> my nic stops working and changing back to mtu 1500 does not help.
> To use my nic again I have to execute:
> rmmod jme
> modprome jme
> and the the command ifconfig eth0 mtu 1500 $IP up works and enables the network
> 
> My network card is Jmicron
[...]

Can you look into this, please?

It appears that jme_change_mtu() doesn't stop the RX path and doesn't
immediately reallocate RX buffers, and I think it should.  Maybe that's
not the problem though.

Ben.

-- 
Ben Hutchings
For every action, there is an equal and opposite criticism. - Harrison

Download attachment "signature.asc" of type "application/pgp-signature" (829 bytes)