Messages in this thread | | | Date | Wed, 1 Mar 2006 17:51:03 -0500 | From | Dave Jones <> | Subject | Re: [PATCH] leave APIC code inactive by default on i386 |
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On Wed, Mar 01, 2006 at 02:47:38PM -0800, Darrick J. Wong wrote: > On Wed, 2006-03-01 at 17:14 -0500, Dave Jones wrote: > > > In light of Matthew's comments in this thread though, I'm also wondering > > if we can now get by without this diff, and just enable it by default now > > that the kernel respects that the BIOS and leaves it alone if it's been > > disabled. > > Actually, it seems that there are Lenovo ThinkCenter P4 machines with > buggy BIOSes that tell us that we can enable the APIC ... but doing so > eventually causes the system to hang. Granted, the Google-recommended > fixes are "noapic" or "Update the BIOS", but perhaps it would be best to > leave it off _except_ for the few cases where we know that we need it. > > (Then again, the correct solution in this case is to fix the BIOS...)
Indeed. And also blacklist the bad ones with DMI entries.
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