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[Xen-ia64-devel] [PATCH] Add netfornt tx_queue_len

To: xen-ia64-devel <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-ia64-devel] [PATCH] Add netfornt tx_queue_len
From: Tomonari Horikoshi <t.horikoshi@xxxxxxxxxxxxxx>
Date: Tue, 23 Jan 2007 15:26:41 +0900
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Hi all.

I mistook sending mail.
I send it again.


Hi all.

When I executed "netperf" by a short message of UDP, 
PV domain issued Call trace.

I think that GrantEntry was filled with a lot of messages processings.

This problem is generated in IA64 only.
I corrected to check "number of unprocessing queue > tx_queue_len" before Grant 
was filled.

Is there other a good correction?


# ./netperf -t UDP_STREAM -H -l 3 -- -m 10 -M 10

netperf[2474]: bugcheck! 0 [1]
Modules linked in:

Pid: 2474, CPU 0, comm:              netperf
psr : 00001010081a2010 ifs : 8000000000000b9b ip  : [<a0000001006c9ce0>]    Not 
ip is at network_start_xmit+0xa00/0xe40
unat: 0000000000000000 pfs : 8000000000000b9b rsc : 000000000000000b
rnat: 0000000000000000 bsps: 0000000000000000 pr  : 0104682415669999
ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c8a70033f
csd : 0000000000000000 ssd : 0000000000000000


Best regards,
Tomonari Horikoshi

Attachment: tx-queue-len-support.patch
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