mm: critical shortage of bounce buffers

From: Steffen Persvold (
Date: Fri Sep 28 2001 - 13:19:11 EST

Hi list members,

I've recently encountered the following message on a machine running RedHat's
2.4.3-12 kernel :

"mm: critical shortage of bounce buffers"

I've searched through the kernel sources, but my 'find' just can't locate this
string anywhere.

Why does this message appear (apparently during high network load with the intel
eepro100 driver or e1000 driver). Is bounce buffers really in use on a x86
machine with 2GB of RAM (normal smp RedHat kernel, not enterprise)??

I appreciate any feedback.


  Steffen Persvold   | Scalable Linux Systems |   Try out the world's best  |  | performing MPI implementation:
Tel: (+47) 2262 8950 |   Olaf Helsets vei 6   |      - ScaMPI 1.12.2 -         
Fax: (+47) 2262 8951 |   N0621 Oslo, NORWAY   | >300MBytes/s and <4uS latency
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This archive was generated by hypermail 2b29 : Sun Sep 30 2001 - 21:01:04 EST