On Fri, May 23, 2014 at 11:19:30AM -0500, Russ Anderson wrote: [..] > > > Well, we did find the bug in a combined debug session and SGI will be > > issuing a fix soon. I don't know whether any quirk will be needed for > > systems which don't have the fix - I guess that's something for SGI > > people to decide. CCed and leaving in the rest for reference. > > > > @Alex, Russ: this is about using kexec on UEFI boxes. > > Thanks for the heads up. Our bios made an assumption about > mapping that was valid with the old mapping scheme but not > with the new. Fortunately the fix will work with both old > and new kernels, so the fix can be added in the next bios > update. But we still have to be careful when removing the > quirk, to avoid someone trying a new kernel with old bios > and not being able to boot. Hi, So is there is a way for kernel to know whether BIOS has fix or not? IOW, I am wondering how would one remove quirk or how one can be reasonably sure that kernel is not booting with Old BIOS. Thanks Vivek
