* Re: Bug#644281: linux-image-3.0.0-1-amd64: problem after changing mtu size on jme kernel module [not found] <20111004181353.3212.57206.reportbug@ASUS> @ 2011-10-07 4:17 ` Ben Hutchings 2011-10-07 6:24 ` Guo-Fu Tseng 0 siblings, 1 reply; 2+ messages in thread From: Ben Hutchings @ 2011-10-07 4:17 UTC (permalink / raw) To: Guo-Fu Tseng; +Cc: 644281, kantacki, netdev [-- Attachment #1: Type: text/plain, Size: 815 bytes --] 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 [-- Attachment #2: This is a digitally signed message part --] [-- Type: application/pgp-signature, Size: 828 bytes --] ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Bug#644281: linux-image-3.0.0-1-amd64: problem after changing mtu size on jme kernel module 2011-10-07 4:17 ` Bug#644281: linux-image-3.0.0-1-amd64: problem after changing mtu size on jme kernel module Ben Hutchings @ 2011-10-07 6:24 ` Guo-Fu Tseng 0 siblings, 0 replies; 2+ messages in thread From: Guo-Fu Tseng @ 2011-10-07 6:24 UTC (permalink / raw) To: Ben Hutchings; +Cc: 644281, kantacki, netdev On Fri, 07 Oct 2011 05:17:52 +0100, Ben Hutchings wrote > 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 I'll find some time to look into it this weekend. Thanks for the report. :) Guo-Fu Tseng ^ permalink raw reply [flat|nested] 2+ messages in thread
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2011-10-07 4:17 ` Bug#644281: linux-image-3.0.0-1-amd64: problem after changing mtu size on jme kernel module Ben Hutchings
2011-10-07 6:24 ` Guo-Fu Tseng
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