xen-users
Re: [Xen-users] Xen on Pentium M laptop?
James Harper wrote, On 08/09/08 09:26:
When I boot, Xen seems to be going OK, and tells me its giving up the
VGA. A little time goes on and then the VGA screen clears, after which
there is no response to the keyboard or anything more on the screen.
The laptop does in fact answer pings, and in fact accepts ssh
connections. However, the ssh connections just hang with no response.
I don't know about the lack of keyboard or screen activity, but in the
case where icmp works and tcp handshake packets work but tcp data
packets don't, i'd fire up tcpdump on another box and see if your tcp
data packets are going out with invalid checksums (eg checksum
offloading isn't working). I've seen this before just recently on
another mailing list.
Of course there are a bunch of other causes that would give you the same
problems too.
James
James, thanks for the suggestion, but that doesn't seem to be it. The
tcpdump shows
1 0.000000 192.168.10.2 -> 192.168.10.30 TCP 61336 > ssh [SYN]
Seq=3942416159 Ack=0 Win=49640 Len=0
2 0.000207 192.168.10.30 -> 192.168.10.2 TCP ssh > 61336 [SYN, ACK]
Seq=895959597 Ack=3942416160 Win=5840 Len=0
3 0.000271 192.168.10.2 -> 192.168.10.30 TCP 61336 > ssh [ACK]
Seq=3942416160 Ack=895959598 Win=49640 Len=0
4 38.858578 192.168.10.2 -> 192.168.10.30 TCP 61336 > ssh [FIN, ACK]
Seq=3942416160 Ack=895959598 Win=49640 Len=0
5 38.859051 192.168.10.30 -> 192.168.10.2 TCP ssh > 61336 [ACK]
Seq=895959598 Ack=3942416161 Win=46 Len=0
Nothing but the tcp handshake followed by silence until I break the
connection. A more verbose dump shows no checksum errors.
Ken
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