On Sat, 23 Feb 2008 10:55:17 PST, Andrew Morton said:
It does have the downside that the kernel explodes if someone adds unlikely or likely to the vdso code and I need to occasionally hunt down new additions and revert them in that patch. That makes it a bit of a maintenance burden.
I think it exploded again, for some other reason... I just gave it a try just for grins-n-giggles. The resulting kernel got loaded by grub, the screen cleared, and about 5 seconds later it rebooted. Never got as far as putting up penguin icons. Tried again with netconsole, early_printk=vga, and initcall_debug, and it *still* didn't live long enough to produce anything resembling output. 2.6.25-rc2-mm1, x86_64 on a Dell Latitude D820 laptop, T7200 Core2 Duo. Attached is my *working* config (I'm using it as I type this). Changing to 'CONFIG_PROFILE_LIKELY=y' and rebuilding produces wreckage....