From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bill Davidsen Subject: Re: 2.6.17-1.2174_FC5: : Disabling IRQ #7 / nobody cared / usb_hcd_irq Date: Tue, 05 Sep 2006 10:26:58 -0400 Message-ID: <44FD8932.60906@tmr.com> References: <790873504@web.de> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <790873504@web.de> Sender: linux-laptop-owner@vger.kernel.org List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Simeon Penev Cc: linux-laptop@vger.kernel.org I can't help someone Simeon Penev wrote: >Hi, > >i'm running FC5 on an Asus A6T-AP005H laptop. My kernel is 2.6.17-1.2174_FC5. >Somewhere at about 10 minutes after i start the system, the USB subsystem dies with the message: > Although IRQ7 is traditionally LP, it seems to get identified for almost any unexpected interrupt. I knew why once, but I haven't seen this for some time. The real problem is that the kernel disables the IRQ, making the system unusable. You can try any of several things: - try the last 2.6.16 kernel - remove the IRQ disable code, or add a counter. It happens only once on many machines, as something comes ready. - switch to IRQ poll - disable any CPU speed stuff you have running (just for information) - try the question on a Fedora list, or report as a bug - look for newer BIOS formware Yes, that's a shotgun approach, I'm still running 2.6.16.2111 on FC4 because later kernels don't init the video or wireless correctly. -- bill davidsen CTO TMR Associates, Inc Doing interesting things with small computers since 1979