Re: "Multiple entries for PCI IRQ 16" and "xlock already held"panics on 5.3-BETA(3,4,5)

From: Bjoern A. Zeeb <bzeeb-lists_at_lists.zabbadoz.net>
Date: Mon, 27 Sep 2004 17:02:57 +0000 (UTC)
On Thu, 23 Sep 2004, Pavel Gubin wrote:

Hi,

> On Thu, Sep 23, 2004 at 10:29:47AM -0400, John Baldwin wrote:
>
> > > > > panices immediately with "panic: Multiple entries for PCI IRQ 16"
> []
> > > I/O Ints:	Type	Polarity    Trigger	Bus ID	 IRQ	APIC ID	PIN#
> > > 		INT	active-lo       level	     0	 2:A	      2	  16
> > > 		INT	active-lo       level	     0	 2:A	      2	  23
> >
> > This is the real bug and I guess I can improve the message.  Then problem is
> > not two lines for IRQ 16, but that the PCI interrrupt for bus 0, device 2,
> > pin #A has two different IRQs listed, so we don't know which one we are
> > supposed to use.  This is definitely a BIOS bug and your motherboard
> > manufacturer needs to harassed into giving you a BIOS update.
>
>   Then shame on MSI.. And some stupid question - maybe a kernel can be given

MSI A6120MS V2.0 (latest BIOS from 7/2000 I think)

I/O Ints:       Type    Polarity    Trigger     Bus ID   IRQ    APIC ID PIN#
..
                INT     active-lo       level        0  15:A          2   16
..
                INT     active-lo       level        0  15:A          2   18
..


normally it goes

------
OK lsmod
 0x400000: /boot/kernel/kernel (elf kernel, 0x6c76cc)
  modules: linux.1 elink.1 io.1 splash.1 viapm.1 intpm.1 alpm.1 agp.1 crypto.1 nfsserver.1 nfs4.1 nfs.1 ipfw.2 rc4.1 netgraph.65546 wlan.1 zlib.1 sppp.1 if_gif.1 if_fait h.1 ether.1 sysvshm.1 sysvsem.1 sysvmsg.1 cd9660.1 isa.1 pseudofs.1 procfs.1 msdosfs.1 usb.1 smbus.1 smb.1 random.1 ppbus.1 pci.1 pccard.1 null.1 mpt.1 miibus.1 mem.1 is p.1 iicsmb.1 iicbus.1 iicbb.1 iic.1 ic.1 sbp.1 fwe.1 firewire.1 exca.1 cardbus.1 ahd.1 ahd_pci.1 ahc.1 ahc_pci.1 ahc_isa.1 ahc_eisa.1 linprocfs.1 scsi_low.1 cam.1
OK set boot_verbose=1
OK show
LINES=24
acpi_load=YES
autoboot_delay=NO
boot_verbose=1
...
OK boot -h
ACPI autoload failed - no such file or directory
Preloaded elf kernel "/boot/kernel/kernel" at 0xc0ac9000.
MP Configuration Table version 1.4 found at 0xc00f7200
APIC: Using the MPTable enumerator.
SMP: Added CPU 0 (BSP)
SMP: Added CPU 1 (AP)
MPTable: <MSI      440BX       >
...
panic: Multiple IRQs for PCI interrupt 0.15.INTA: 16 and 18

cpuid = 0
KDB: enter: panic
[thread 0]
Stopped at      kdb_enter+0x2b: nop
db>
------


but if I do (no lsmod this time but that shouldn't matter):

------
db> reset
OK set boot_verbose=1
OK unload acpi			<------- this
OK boot -h
/boot/kernel/kernel text=0x4b6e3c data=0x88048+0x9bc78 syms=[0x4+0x6b200+0x4+0x809c1]
/boot/kernel/acpi.ko text=0x4097c data=0x1be4+0x110c syms=[0x4+0x7300+0x4+0x9782]
...
Preloaded elf kernel "/boot/kernel/kernel" at 0xc0b1e000.
Preloaded elf module "/boot/kernel/acpi.ko" at 0xc0b1e250.
Table 'FACP' at 0x1fff0030
Table 'APIC' at 0x1fff00b0
MADT: Found table at 0x1fff00b0
MP Configuration Table version 1.4 found at 0xc00f7200
APIC: Using the MADT enumerator.
MADT: Found CPU APIC ID 0 ACPI ID 1: enabled
SMP: Added CPU 0 (AP)
MADT: Found CPU APIC ID 1 ACPI ID 2: enabled
SMP: Added CPU 1 (AP)
ACPI APIC Table: <AMIINT DRAC-100>
...
------

everything boots up just fine.

/me does not have to understand - do I  ?

-- 
Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
Received on Mon Sep 27 2004 - 15:05:10 UTC

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