i2c or eeprom enumeration problem

Ulrich Drepper
2008-04-28T04:21:31Z

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On a NUMA system the eeprom interface in /sys

/sys/bus/i2c/drivers/eeprom/*

do not list all the DRAM eeproms. Only the DRAM from one node is
listed. I have a 4 socket system with all 16 banks filled and see only
4 entries.

My suspicion (without looking at any code) is that the list of i2c
devices with eeproms is collected once and this happens only on one CPU.
I sees not to be dynamic since when I read the files with taskset
restricting execution on certain sockets and cores the result doesn't
change.

Is this known or expected (I hope not the latter)? Where should I look
at? I assume that's in the i2c code?

- --
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖
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