[syslinux] Problems booting on Intel i9x5 motherboards.

[H. Peter Anvin]

Pat Suwalski wrote:
> It's turning out to be a very fun afternoon!

Debugging bootloaders is so much fun :)

> ganapathy murali krishnan wrote:
>> 1. Exit as soon as it loads
>> 2. Exit just before it parses the config file (after reading it)
>> 3. Exit just after it parses the config file
> 
> Bam. Right here.
> 
>> 4. Exit just before it starts displaying the menu
>> 5. Exit as soon as it displays the menu before waiting for user input
>> 6. Run menu.c32 hit escape to exit
> 
> So, my instincts told me it's something about reading the file. As a 
> test, I loaded up cat.c32:
> 
>     cat.c32 "isolinux.cfg"
>     /boot/vmlinuz vga=ask
> 
> Error ensues.
> 
> I would say it's a problem with the file io operations in com32, maybe?
> 

The double quotes are going to be considered part of the filename, so you probably don't 
want to have those in there...

Anyway, IN-teresting.  I presume you're using the latest prerelase (3.20-pre9) for all 
this.  One thing that the file access and booting both require the use of the bounce 
buffer, so if the kernel-loading routine does something bogus when there is previous 
contents in the bounce buffer, we could have a real problem.

Explaining the system dependency gets messy, though.

	-hpa