Bug 845484 - qperf: ud_bw ud_bi_bw ud_lat tests failed when the message size is larger than 2K for 'Local length error'
Summary: qperf: ud_bw ud_bi_bw ud_lat tests failed when the message size is larger tha...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: qperf
Version: 5.9
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: rc
: ---
Assignee: Doug Ledford
QA Contact: Infiniband QE
URL:
Whiteboard:
Depends On: 840266
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-08-03 08:27 UTC by hali
Modified: 2013-03-08 00:09 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of: 840266
Environment:
Last Closed: 2012-08-13 14:41:56 UTC
Target Upstream Version:
Embargoed:

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Comment 1 RHEL Program Management 2012-08-07 08:48:53 UTC 
This request was evaluated by Red Hat Product Management for inclusion
in a Red Hat Enterprise Linux release.  Product Management has
requested further review of this request by Red Hat Engineering, for
potential inclusion in a Red Hat Enterprise Linux release for currently
deployed products.  This request is not yet committed for inclusion in
a release.
Comment 2 Doug Ledford 2012-08-13 14:41:56 UTC 
This is not a bug.  The InfiniBand spec says that UD queue pair types can only support data transfers as large as the physical MTU of the link.  What you are seeing is normal whenever the physical MTU of the link is 2k.
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