Hi,

> On Jan 13, 2025, at 9:30 PM, Paul Dufresne via Freedos-devel 
> <freedos-devel@lists.sourceforge.net> wrote:
> 
> Experimenting 1.4-RC1 on real main computer (i3-8100, 16 GB of memory).
> 
> I uncommented the line for logger in fdconfig.sys and rebooted.
> 
> Got a panic at reboot... manual notes:
> Message logger v1.00
> 256 KB of XMS for color logging
> Kernel: allocated 46 diskbuffers...
> dos mem corrupt, first_mcb=039E
> prev ce08:0000 | 4d 08 00 f7 01 00 00 00 53 44 00 00 00 00 00 00
> notMZd000:0000| ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> 
> PANIC: MCB chain corrupted
> System halted
> 

Since you got the “kernel:” message, that would be after logger was running and 
returned control back to DOS and the next step in the boot process.

The MCB chain corruption could possibly be related to a kernel bug discovered 
last year when some issues running FDIMPLES were encountered. 

See, https://github.com/FDOS/kernel/issues/148

:-)

> 
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