Resume issue after a longer sleep
zecke at openmoko.org
Mon May 19 23:36:29 CEST 2008
On Monday 19 May 2008 11:10:49 Andy Green wrote:
> | Regarding my suspend/resume issue:
> | - Your addition of "suspend" to the i2c s3c driver has a possible NULL
> | dereference but we don't hit that.
> Don't be shy, where is it?
It is attached to this mail. We don't hit that though.
> | - It is hanging in __reg_write even before the _xfer of the i2c s3c is
> | getting called (which means i2c_transfer is not called) which can't be...
> How would we know that _xfer is called? Maybe the notification is
> asynchronous somehow, when we panic it is never issued then even though
> it happened.
__reg_write of the pcf driver, which should end in a call to i2c_transfer,
which should use the master_transfer of our s3c i2c code. i2c_transfer is not
called. So I'm either oopsing somewhere before or... deadlock/sleep. Sorry I
didn't progress on this tonight.
> | might be a timing issue?
> Wah, lovely some horrible race somewhere no doubt (like the others that
> were found in this area).
yupp. Fun :)
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