On Mon, Oct 01, 2007 at 10:08:58AM -0700, Kristen Carlson Accardi wrote: > Hi, > I notice in acpiphp that the code path for powering down the slot > via sysfs does not execute the _EJ0 method, but instead simply > looks for _PS3 and of couse disables all the bridges and devices. > I suppose this could be valid depending on your definition of what > /sys/bus/pci/slots/<slot_no>/power should do. > > Is it intended to just power down the adapter that's in the slot, > or is it intended to make the adapter in the slot able to be removed? > If it's intended to make the adapter able to be removed, shouldn't > we be calling _EJ0? > > As a comparison, in pciehp when the sysfs power file is written, > we do actually go out and send the commands to the hotplug controller > to physically power off the slot. Kristen, This sounds a lot like the problem I was trying to address with the "fix slot poweroff problem on systems without _PS3" patch that I posted in June. http://sourceforge.net/mailarchive/forum.php?thread_name=20070604232736.GA3239%40us.ibm.com&forum_name=pcihpd-discuss It seems to be working fine on our systems. Gary -- Gary Hade System x Enablement IBM Linux Technology Center 503-578-4503 IBM T/L: 775-4503 garyhade@xxxxxxxxxx http://www.ibm.com/linux/ltc - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
