[Oops] 2.6.31-rc1: tun

[Sergei Trofimovich]

Updated from 2.6.30 to 2.6.31-rc1

$ uname -a
Linux mosly 2.6.31-rc1 #16 SMP PREEMPT Thu Jun 25 22:14:24 EEST 2009 x86_64 Intel(R) Core(TM)2 Duo CPU U7600 @ 1.20GHz GenuineIntel GNU/Linux

All my tun interfaces stopped working. ICMP works but IP(TCP/UDP) does not.
Machine started to hang. I tried to reproduce in linux console. You see the .png result.
.config attached

P.S.: sorry, my lame skills allowed me to shrink 3MB jpg only down to 180KB.

[Herbert Xu]

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[Sergei Trofimovich]

Post by Herbert Xu

Post by Sergei Trofimovich
All my tun interfaces stopped working. ICMP works but IP(TCP/UDP) does not.
Machine started to hang. I tried to reproduce in linux console. You see the .png result.
.config attached

This patch should help (already merged by davem).

cherry-picked 71f9dacd2e4d233029e9e956ca3f79531f411827 from
git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.git
onto current master from Linus.

openvpn works perfectly.

Thanks!

[Herbert Xu]

It was rather straightforward to bisect[1]: bad state is nonworking (sometimes Oopsing
as you can see in previous email) openvpn.
Reverting commit d55d87fdff8252d0e2f7c28c2d443aee17e9d70f against
v2.6.31-rc1-115-g442ce8a or against v2.6.31-rc1 stabilizes kernel and makes openvpn
work again.

Should be fixed already with the patch that I forwarded you in
the previous email.

Thanks,