Re: [parisc-linux] kernel dies: [Was: C3000 video options]

[Joel Soete <soete.joel@tiscali.be>]

Elliott Potter wrote:
> Well ... I'm working on this PCI graphics card problem, and needed to
> recompile the kernel.  I got the 2.4.24-pa0 kernel and built it, but
> when I boot I get:
> 
> [...]
> Found devices:
> 1. Astro BC Runway Port (12) at 0xfed00000 [10], versions 0x582, 0x0,
> 0xb
> 2. Elroy PCI Bridge (13) at 0xfed30000 [10/0], versions 0x782, 0x0, 0xa
> 3. Elroy PCI Bridge (13) at 0xfed32000 [10/1], versions 0x782, 0x0, 0xa
> 4. Elroy PCI Bridge (13) at 0xfed38000 [10/4], versions 0x782, 0x0, 0xa
> 5. Elroy PCI Bridge (13) at 0xfed3c000 [10/6], versions 0x782, 0x0, 0xa
> 6. AllegroHigh W (0) at 0xfffa0000 [32], versions 0x5bb, 0x0, 0x4
> 7. Memory (1) at 0xfed10200 [49], versions 0x86, 0x0, 0x9
> CPU(s): 1 x PA8500 (PCX-W) at 400.000000 MHz
> SBA found Astro 2.1 at 0xfed00000
> lba version TR2.1 (0x2) found at 0xfed30000
> PCI: Ignoring BAR0-3 of IDE controller 00:0e.0
> lba version TR2.1 (0x2) found at 0xfed32000
> lba version TR2.1 (0x2) found at 0xfed38000
> lba version TR2.1 (0x2) found at 0xfed3c000
> POSIX conformance testing by UNIFIX
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Initializing RT netlink socket
> Soft power switch enabled, polling @ 0xf0400804.
> Starting kswapd
> Journalled Block Device driver loaded
> matroxfb: Matrox Millennium (PCI) detected
> 
> Stack Dump:
>  11b38880:  0004ff0f 1039d778 00000000 10398010
>  11b38870:  00000000 10232234 1035af00 00000000
>  11b38860:  11b3e400 00000000 11b38000 102dcc0c
>  11b38850:  10305810 00800000 0000000f 1035ae34
>  11b38840:  1035b0b8 00000000 00000000 00000000
>  11b38830:  00000000 1021d660 00000000 00000007
> 
> Kernel addresses on the stack:
>  [<10232234>]  [<1021d660>]  [<1022c010>]  [<1022cc78>]
>  [<10139068>]  [<1021d054>]  [<1021d11c>]  [<101001a8>]
>  [<10107c4c>]  [<10107cf4>]  [<10165bc4>]  [<10165bc4>]
>  [<10166188>]  [<10166188>]  [<1010019c>]  [<10166418>]
>  [<1011f8f0>]
> 
> Kernel Fault: Code=15 regs=11b38880 (Addr=f2001fde)
> 
>      YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
> PSW: 00000000000001001111111100001111 Not tainted
> r00-03  00000000 1035b010 1022c098 00800000
> r04-07  1035b0b8 1035ae34 1035b0b8 f2800000
> r08-11  f2000000 1035a810 fffffffa 1035b010
> r12-15  10309010 103d3ac8 00000000 f0400004
> r16-19  f00008c4 f000017c f0000174 00000003
> r20-23  f2000000 1035b0b8 00000001 11b38810
> r24-27  f2800000 1035b7f0 00800000 102ee010
> r28-31  00000000 fed32000 11b38880 1022c010
> sr0-3   00000000 00000000 00000000 00000000
> sr4-7   00000000 00000000 00000000 00000000
> 
> IASQ: 00000000 00000000 IAOQ: 1022bb44 1022bb48
>  IIR: 62933fbc    ISR: 00000000  IOR: f2001fde
>  CPU:        0   CR30: 11b38000 CR31: 103a8000
>  ORIG_R28: 00000000
> 
> ... and then it dies.  Searching on the internet for "Kernel Fault:
> Code=15" I see a few e-mails that went around 3 or 4 years ago but
> nothing current.  Does that mean this is a solved problem?
> 
Have a look in arch/parisc/kernel/traps.c:
[snip]
         case 15:
                 /* Data TLB miss fault/Data page fault */
                 /* Fall thru */
[snip]

With 2.6 you would get more on kernel stack dump; never the less with 2.4 you could submit this text to dump_analyser.sh (see: 
http://cvs.parisc-linux.org/build-tools/ it requires also a.c). It will give you more detail on IAOQ, GR2, ...

> 
> 
> As far as making the Matrox Millennium go, the firmware doesn't appear
> know what to do with the card, so it sticks to serial console.  From
> there we can see:
> 
> information -> sysconfig says:
> [...]
>         I/O Slot  Card Type
>         --------  -------------------------------
>             1     empty
>             2     empty
>             3     empty
>             4     empty
>             5     empty
>             6     VGA         Vendor ID = 0x102b  Device ID = 0x0519
> 
> 
> information -> io says:
>                                                                      IODC
> IODC
> Path         Decimal     Type                  Location   HVER SVER
> Vers Dep
> ------------ ----------- --------------------- ---------- ---- ----
> ---- ----
> LAN          10/0/12/0   Ethernet              built-in   0060 a200
> 0x02 0x00
> AUDIO        10/0/13/0   Audio                 built-in
> IDE          10/0/14/0   IDE                   built-in   0060 a300
> 0x00 0x00
> SUPERIO MISC 10/0/14/1   Bridge Device         built-in
> FLOPPY       10/0/14/1/0 Floppy Disk           built-in
> SERIAL_1     10/0/14/1/1 RS232 Port            built-in   0060 8c00
> 0x01 0x00
> SERIAL_2     10/0/14/1/2 RS232 Port            built-in   0060 8c00
> 0x01 0x00
> PARALLEL     10/0/14/1/3 Parallel Port         built-in
> USB          10/0/14/2   USB                   built-in   0060 a900
> 0x98 0x00
> SCSI         10/0/15/0   SCSI                  built-in   0060 a300
> 0x00 0x00
> FWSCSI       10/0/15/1   SCSI                  built-in   0060 a300
> 0x00 0x00
> PCI6         10/1/6/0    VGA                   slot 6     (no firmware
> driver)
> 
> 
> (sorry about the wrapping; basically it sees the card, knows it's a VGA
> card, but has no firmware driver for it).
> 
> And now it's 1am so I'm going to stop.  But my goal is to make this go
> :)

May be switch to 2.6 ;)

hth,
	Joel

PS: I also try a ATI XL with 'no-bios' patch and reach to load module without system crash.
Unfortunately this card seems to be broken :_) (screen stay black) and without other spare part available I had to stop :(