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From: Michael Tokarev <mjt@tls.msk.ru>
To: qemu-devel <qemu-devel@nongnu.org>
Subject: [Qemu-devel] is it just me or is ne2k broken in qemu?
Date: Thu, 14 Apr 2011 12:31:36 +0400	[thread overview]
Message-ID: <4DA6B0E8.2050608@msgid.tls.msk.ru> (raw)

I performed several tests of various emulated NICs
booting with iPXE, and discovered that ne2k_pci (*)
emulated device does not quite work, for quite some
time already, at least with linux guests.

The NIC works for a while, but after a few packets,
or a few 1000s of packets, it stalls.  In tcpdump
on the host I see many ARP requests coming from the
guest and each has corresponding ARP reply, but
nothing is actually reaching the guest.

This behavour is consistent since qemu-kvm 0.12,
and is demonstrated by guest kernel 2.6.32 and
2.6.38, either 32 or 64bit.

Anyone seen something similar?

Thanks!

/mjt

(*) can we make ne2k-pci to ebe an alias for ne2k_pci,
to be consistent with virtio-net-pci?

             reply	other threads:[~2011-04-14  8:31 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-14  8:31 Michael Tokarev [this message]
2011-04-14 12:29 ` [Qemu-devel] is it just me or is ne2k broken in qemu? Mulyadi Santosa
2011-04-15 14:17 ` Alex Williamson
2011-04-16 20:37   ` Michael Tokarev
2011-04-26 19:26     ` Luiz Capitulino

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