On Tue, 12 Jul 2005, Vitaly Belostotsky wrote:

I've encountered some network related bug when using qemu with tun
and I'm willing to debug it but could you please provide some help.

you may want to try upgrading to the host kernel to 2.6.12. Had quite a bit of issues with tun devices "hanging" in earlier Linux-2.6 versions, but after I switched to a Fedora Core 4 host running Linux-2.6.12 things seems much more stable.

My diagnostics at the time indicated some flow control problem within the host kernle tun driver, making the driver stall and not deliver packets to the application (qemu). Your findings seems to indicate very similar result.

Regards
Henrik


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