Re: i2c or eeprom enumeration problem

Andrew Morton
2008-04-28T12:06:39Z

On Sun, 27 Apr 2008 21:20:42 -0700 Ulrich Drepper <drepper@redhat.com> wrote:

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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?
>

Let's cc the i2c list.