On Sun, Aug 24, 2003 at 01:06:05PM +0100, Felipe Alfaro Solana wrote:
> > On Mon, Aug 18, 2003 at 09:09:16PM +0200, Felipe Alfaro Solana wrote: 
> >  
> > > If I try to boot my P4 box (i845DE motherboard) with no PS/2 mouse 
> > > plugged into the PS/2 port, the kernel hangs while checking the AUX 
> > > ports in function i8042_check_aux(). The i8042_check_aux() function is 
> > > trying to request IRQ #12, but the call to request_irq() causes the 
> > > hang. The kernel hangs exactly at: 
> > >  
> > >         if (request_irq(values->irq, i8042_interrupt, SA_SHIRQ, 
> > >                                 "i8042", i8042_request_irq_cookie)) 
> >  
> > What happens if you remove the SA_SHIRQ and replace with 0? 
>  
> It does nothing: the kernel still hangs there. It seems to be a problem with the new ACPI code 
> changes cause the kernel boots fine with "pci=noacpi". 

confirmed here. Although I have it on 2.6.0-test4 and had it since
al least test3-mm3.

lspci -vvv:


00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 03)
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
	Latency: 0
	Region 0: Memory at d0000000 (32-bit, prefetchable) [size=64M]
	Capabilities: [a0] AGP version 2.0
		Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW- AGP3- Rate=x1,x2,x4
		Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=<none>
	Capabilities: [c0] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP] (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
	Latency: 0
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	I/O behind bridge: 0000f000-00000fff
	Memory behind bridge: d9000000-dbffffff
	Prefetchable memory behind bridge: dc000000-dcffffff
	BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
	Capabilities: [80] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 40)
	Subsystem: VIA Technologies, Inc. VT82C686/A PCI to ISA Bridge
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Capabilities: [c0] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:07.1 IDE interface: VIA Technologies, Inc. VT82C586/B/686A/B PIPC Bus Master IDE (rev 06) (prog-if 8a [Master SecP PriP])
	Subsystem: VIA Technologies, Inc. VT8235 Bus Master ATA133/100/66/33 IDE
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 32
	Region 4: I/O ports at 9000 [size=16]
	Capabilities: [c0] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:07.2 USB Controller: VIA Technologies, Inc. USB (rev 16) (prog-if 00 [UHCI])
	Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 32, cache line size 08
	Interrupt: pin D routed to IRQ 12
	Region 4: I/O ports at 9400 [size=32]
	Capabilities: [80] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:07.3 USB Controller: VIA Technologies, Inc. USB (rev 16) (prog-if 00 [UHCI])
	Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 32, cache line size 08
	Interrupt: pin D routed to IRQ 12
	Region 4: I/O ports at 9800 [size=32]
	Capabilities: [80] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:07.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 40)
	Subsystem: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Interrupt: pin ? routed to IRQ 7
	Capabilities: [68] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:09.0 SCSI storage controller: Adaptec AHA-2940U/UW/D / AIC-7881U (rev 01)
	Subsystem: Adaptec AHA-2940UW SCSI Host Adapter
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 32 (2000ns min, 2000ns max), cache line size 08
	Interrupt: pin A routed to IRQ 10
	Region 0: I/O ports at 9c00 [disabled] [size=256]
	Region 1: Memory at dd000000 (32-bit, non-prefetchable) [size=4K]
	Expansion ROM at <unassigned> [disabled] [size=64K]
	Capabilities: [dc] Power Management version 1
		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:0a.0 Unknown mass storage controller: Triones Technologies, Inc. HPT366/368/370/370A/372 (rev 04)
	Subsystem: Triones Technologies, Inc. HPT370A
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 120 (2000ns min, 2000ns max)
	Interrupt: pin A routed to IRQ 11
	Region 0: I/O ports at a000 [size=8]
	Region 1: I/O ports at a400 [size=4]
	Region 2: I/O ports at a800 [size=8]
	Region 3: I/O ports at ac00 [size=4]
	Region 4: I/O ports at b000 [size=256]
	Expansion ROM at <unassigned> [disabled] [size=128K]
	Capabilities: [60] Power Management version 2
		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:0b.0 VGA compatible controller: 3Dfx Interactive, Inc. Voodoo 3 (rev 01) (prog-if 00 [VGA])
	Subsystem: 3Dfx Interactive, Inc. Voodoo3
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR+
	Interrupt: pin A routed to IRQ 9
	Region 0: Memory at d4000000 (32-bit, non-prefetchable) [size=32M]
	Region 1: Memory at d6000000 (32-bit, prefetchable) [size=32M]
	Region 2: I/O ports at b400 [size=256]
	Expansion ROM at <unassigned> [disabled] [size=64K]
	Capabilities: [60] Power Management version 1
		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:0c.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev 78)
	Subsystem: 3Com Corporation 3C905C-TX Fast Etherlink for PC Management NIC
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR+
	Latency: 32 (2500ns min, 2500ns max), cache line size 08
	Interrupt: pin A routed to IRQ 12
	Region 0: I/O ports at b800 [size=128]
	Region 1: Memory at dd001000 (32-bit, non-prefetchable) [size=128]
	Expansion ROM at <unassigned> [disabled] [size=128K]
	Capabilities: [dc] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
		Status: D0 PME-Enable- DSel=0 DScale=2 PME-

00:0d.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900 10/100 Ethernet (rev 02)
	Subsystem: Silicon Integrated Systems [SiS] SiS900 10/100 Ethernet Adapter
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 32 (13000ns min, 2750ns max)
	Interrupt: pin A routed to IRQ 10
	Region 0: I/O ports at bc00 [size=256]
	Region 1: Memory at dd002000 (32-bit, non-prefetchable) [size=4K]
	Expansion ROM at <unassigned> [disabled] [size=128K]
	Capabilities: [40] Power Management version 1
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
		Status: D0 PME-Enable+ DSel=0 DScale=0 PME-

00:0f.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10)
	Subsystem: C-Media Electronics Inc CMI8738/C3DX PCI Audio Device
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 32 (500ns min, 6000ns max)
	Interrupt: pin A routed to IRQ 9
	Region 0: I/O ports at c000 [size=256]
	Capabilities: [c0] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA 2164W [Millennium II] AGP (prog-if 00 [VGA])
	Subsystem: Matrox Graphics, Inc.: Unknown device 0100
	Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Interrupt: pin A routed to IRQ 10
	Region 0: Memory at dc000000 (32-bit, prefetchable) [size=16M]
	Region 1: Memory at d9000000 (32-bit, non-prefetchable) [size=16K]
	Region 2: Memory at da000000 (32-bit, non-prefetchable) [size=8M]
	Expansion ROM at <unassigned> [disabled] [size=64K]
	Capabilities: [f0] AGP version 1.0
		Status: RQ=1 Iso- ArqSz=0 Cal=0 SBA- ITACoh- GART64- HTrans- 64bit- FW- AGP3- Rate=<none>
		Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=<none>

-- 
Regards,

Wiktor Wodecki