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Re: Machine check in install kernel

On Sun, Aug 18, 2002 at 03:21:17AM -0400, Michael D. Crawford wrote:
> I get a "Machine check in kernel mode" early in the boot when using the 
> kernel that comes with the woody r0 installer for powermac.  I get the same 
> behaviour whether I boot the uncompressed kernel with bootx, or use the HFS 
> boot floppy.
> This is on a Mac 8500 which is upgraded with a PowerLogix 350 MHz G4 CPU 
> card. I think it has 160 MB of ram.  I've previously run various 2.2 and 
> 2.4 kernels with success, although I had occasional freezes with 2.2.18.

G4's will be much happier with the new-powermac (2.4.x) kernel.

> I was able to begin the install with a 2.2.19 kernel I had previously been 
> installed, but unfortunately I can't complete the installation because the 
> version numbers don't match in the modules (apparently a 2.2.20 kernel is 
> provided by r0).  I need at least the ppp module to complete my 
> installation. When I get to the point of configuring the drivers, it fails, 
> and later when I restart and try to connect to the net, it fails again 
> because it can't load a module.

If you have a previous installation, why not apt-get dist-upgrade instead?
> Is there a different 2.2.20 kernel I can try, or a pair of driver disks 
> built for 2.2.19?  This seems to have brought me to a halt.  I don't have 
> another Linux mac to build a PowerPC kernel on.  I could try doing a 
> cross-compile on a pentium system, but I've never done that and it sounds 
> complicated.
> Here's the message I get from the crash:
> fd0: SWIM3 floppy controller
> md driver 0.36.6 MAX_MD_DEV=4, MAX_REAL=8
> Machine check in kernel mode.  (regs at c05bf9d0)
> NIP: C0145E8C XER: 20000100 LR: C0147B2C REGS: c05bf9d0 TRAP: 0200
> MSR: 00009030 [EE, IR, DR, ME]
> TASK = c05be000[1] 'swapper' mm-pgd c01f2000 Last syscall: 120
> GPR00: 00000080 C05BFA80 C05BE000 C02F7000 00000070 00000007 00000002 
> C03DFC38
> GPR08: C0400000 CC803000 00356000 F2C00000 22462028 002A10A8 00000000 
> 00000000
> GPR16: 00000000 00000020 C02080F4 C05BFE4C C05BFA98 00000000 00000000 
> C05BFAA8
> GPR24: 0000001F 0000003E C05BA1E0 00000009 00000000 C0220000 C02080F4 
> C03F7---
> Call backtrace
> C000FBFC C0147B2C C022ADB4 C022AAE0 C0226488 C021CA30 C00049C4
> C0009C6C C0009C6C (this last is repeated something like 27 times - infinite 
> recursion... it continues:)
> Kernel panic: machine check
> Rebooting in 180 seconds
> after a while it reboots.  If I leave bootx set to boot off this same 
> kernel, it will boot and crash repeatedly with the same register dump.
> I greatly appreciate any help anyone can give me.  My machine addled its 
> little brain when I had a freeze right in the middle of upgrading a couple 
> hundred packages this morning, and I eventually decided to reformat 
> everything but /home and install woody from scratch.


> This is the first time I have attempted to use the woody installer on 
> powerpc. My previous installation was potato followed by an upgrade to 
> woody.  I have run the woody installer on x86 though.

I'd try the new-powermac version (with BootX; it won't fit on a floppy).
On my machine, which had the video box checked for 2.2, I had to un-check
it for the 2.4 kernel.

*------v--------- Installing Debian GNU/Linux 3.0 --------v------*
|      <http://www.debian.org/releases/stable/installmanual>     |
|        debian-imac: <http://debian-imac.sourceforge.net>       |
|            Chris Tillman        tillman@voicetrak.com          |
|                  To Have, Give All to All (ACIM)               |

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