Bug 111643
| Summary: | Kernel hangs if IRQ 12 reassigned by BIOS when no PS/2 mouse attached | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Rich Scheller <rmscheller> |
| Component: | kernel | Assignee: | Arjan van de Ven <arjanv> |
| Status: | CLOSED WONTFIX | QA Contact: | Brian Brock <bbrock> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 1 | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2004-09-29 19:48:41 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Thanks for the bug report. However, Red Hat no longer maintains this version of the product. Please upgrade to the latest version and open a new bug if the problem persists. The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases, and if you believe this bug is interesting to them, please report the problem in the bug tracker at: http://bugzilla.fedora.us/ |
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4.1) Gecko/20031030 Description of problem: The stock kernel with Fedora Core 1 (2.4.22-1.2115-nptl) locks up when attempting to probe a USB bus which has been assigned IRQ 12 by the BIOS. I do not have a PS/2 mouse attached to my machine, so IRQ 12 is reassigned by the BIOS to another device (in my case, a USB 2.0 controller). I have found these four workarounds for this problem: 1. Boot installation kernel with "nousb" paramter to void conflict. Not a very good workaround if you have a USB mouse. :-) 2. Attach a second mouse on the PS/2 mouse port. In this case, both the PS/2 and USB mice are recognized and work correctly together. 3. Build a custom kernel, disabling PS/2 mouse support. Unfortunately, there's no way to make PS/2 mouse support a module (!), so it must be disabled entirely. 4. In the BIOS setup, mark IRQ 12 as "reserved", preventing the BIOS from assigning it to anything at all. Even though #4 is an excellent workaround, this is still a problem because other operating systems installed on this machine have no problem at all when the BIOS assigns IRQ 12 to the USB controller. For a PC hardware novice, this bug is a showstopper right at the start of Linux installation. Version-Release number of selected component (if applicable): kernel-2.4.22-1.2115.nptl How reproducible: Always Steps to Reproduce: 1. Get a motherboard that reassigns IRQ 12 to the USB controller when no PS/2 mouse attached. (e.g. Abit KV7) 2. Attach a USB mouse. 3. Do NOT attach a PS/2 mouse. 4. Boot from the Fedore Core 1 installation CD-ROM. Actual Results: Kernel locks up. Machine must be hard reset. Expected Results: Kernel should not lock up. Installation screen should appear. Additional info: Hardware configuration: Motherboard: Abit KV7, latest BIOS level Chipset: VIA KT600 / VT8237 Keyboard: PS/2 Mouse: USB (Microsoft Wireless Optical Mouse Blue) Output of "lspci": 00:00.0 Host bridge: VIA Technologies, Inc. VT8377 [KT400 AGP] Host Bridge (rev 80) 00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI Bridge 00:0b.0 FireWire (IEEE 1394): Texas Instruments TSB12LV26 IEEE-1394 Controller (Link) 00:0c.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03) 00:0c.3 USB Controller: ALi Corporation USB 2.0 Controller (rev 01) 00:0f.0 RAID bus controller: VIA Technologies, Inc.: Unknown device 3149 (rev 80) 00:0f.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE (rev 06) 00:10.0 USB Controller: VIA Technologies, Inc. USB (rev 81) 00:10.1 USB Controller: VIA Technologies, Inc. USB (rev 81) 00:10.2 USB Controller: VIA Technologies, Inc. USB (rev 81) 00:10.3 USB Controller: VIA Technologies, Inc. USB (rev 81) 00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86) 00:11.0 ISA bridge: VIA Technologies, Inc.: Unknown device 3227 00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235 AC97 Audio Controller (rev 60) 00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 78) 01:00.0 VGA compatible controller: nVidia Corporation NV34 [GeForce FX 5200] (rev a1)