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Re: [Xen-devel] Data broken during FTP test
Thank you for reply.
However, this problem doesn't happen because of the change in the setting.
1. SG(scatter/gather) flag off
2. 'mem=1G' is set as a boot parameter, and SG(scatter/gather) flag on.
This might indicate a high-memory bug in the net driver(s). The TCP re-send
theory makes no sense -- the decision to re-send is always made by the TCP
protocol stack in the domU. dom0 itself will never decide to re-send.
How much memory does your test system have? Are you running 64-bit Xen, PAE
Xen, or non-PAE 32-bit Xen?
The environment of the machine is as follows.
Machine : PRIMERGY model RX200S3
CPU : Xeon 5160 3.0 GHz * 2
Memory : 12 GB(2048 MB * 6)
HDD : AL-9LX 73GB * 2 (Onboard IME RAID1)
NIC : Broadcom Corporation NetXtreme BC5715 Gigabit Ethernet (rev a3) * 2
Intel Corporation 82545GM Gigabit Ethernet Controller (rev 04) * 1
OS : Red Hat Enterprise Linux 5 GA
It is confirmed that this problem happens similarly on NIC of the Intel
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