On Monday, January 31, 2011, Ozan Çağlayan wrote:

On 31.01.2011 22:42, Ozan Çağlayan wrote:

quoted

Well I've actually a screenshot of the boot hang with tons of debugging
parameters passed to kernel. Maybe it will give you a clue. It hangs
right after printing e820 system memory map.

http://bugs.pardus.org.tr/attachment.cgi?id=6554

Well the line that is printed just after when booting with nolapic is NX 
(Execute Disable) protection: active
generated by x86_report_nx().

I looked through kernel/setup.c and can't really see anything between 
setup_memory_map() which dumps the e820 map and x86_report_nx() which 
could be affected by ACPI or nolapic. BTW, I've just seen that nolapic 
is only significant on X86_32. I didn't know that.

Well, it would be good to verify that the recent changes adding NX protection
to kernel data pages aren't causing these issues to appear.

Hmm.  Perhaps it's possible to test this patch on the affected boxes:
https://bugzilla.kernel.org/attachment.cgi?id=45192

Rafael