Hi Dave, >-----Original Message----- >From: [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] On Behalf Of David Brownell >Sent: Monday, January 23, 2006 11:01 AM >To: linux-usb-devel@lists.sourceforge.net >Cc: Andrew Morton; Carlo E. Prelz; linux-kernel@vger.kernel.org >Subject: Re: [linux-usb-devel] Re: ATI RS480-based >motherboard: stuck while booting with kernel >= 2.6.15 rc1 > > >> OK, so it sounds like quirk_usb_disable_ehci() caused your >machine to hang >> with the old BIOS. That's fairly bad behaviour from the kernel, even >> though the BIOS presumably had some problems. > >I think what happened is the "always run quirks" code got turned into >the default too early, before the EHCI "quirk" version of the handoff >code got checked against what most systems have been using for the past >several years. > >I noticed at least one suspicous thing: it enables an SMI IRQ.
As far as I recall, some BIOSes can be stuck at handoff forever waiting for SMI if this is not enabled. No doubt BIOS bug, and seems like work around brakes some other systems, grrr... >Even in cases when the boot firmware says it's not using EHCI ... That's what I do not understand. SOOE is enabled only if BIOS ownes EHCI - check for ECHI_USBLEGSUP_BIOS in previous 'if' statement. Am I missing something ? Thanks, Aleks. >easy to imagine that causing hangage. > > >Maybe this time it'd help to tell your BIOS "yes, DO use USB". >Or, the attached patch might help. Please try both experiments. > >- Dave > > > ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid3432&bid#0486&dat1642 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
