Messages in this thread | | | Date | Mon, 27 Feb 2012 23:59:09 +0200 | From | "Michael S. Tsirkin" <> | Subject | Re: Linux 3.3-rc5 |
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On Sat, Feb 25, 2012 at 12:34:20PM -0800, Linus Torvalds wrote: > Hey, no delays this week. > > And nothing really odd going on either. Maybe things are finally calming down. > > Sure, I'd have liked it to be even calmer, and there's is movement in > various areas: btrfs updates along with scsi and media driver updates. > And various noise elsewhere. But on the whole it's been pretty boring, > which is just how I like it. > > A couple of the fixes were directly linked to my -rc4 announcement, > where I told people they could use a 64-bit kernel to avoid the FP > state save/restore problem we used to have. That brought up some > fairly corner-case compatibility issues that could make that > impractical. So hopefully it's *true* this time around. > > And while the FP state save problem is gone, if you have a 64-bit > capable CPU but are still running a 32-bit distro, it really would be > interesting to verify that a 64-bit kernel works for you without > problems. Because it always *should* have, but clearly that wasn't > always the case. It would be very interesting to hear from people who > have perhaps tried and failed before and perhaps didn't even bother to > report the failure? Maybe it's worth trying again? > > Linus
Yes, I just tried.
IIRC, I used to run 64 bit upstream kernels with 32 bit userspace under Fedora 14 (because I can) this stopped booting when I switched to Fedora 15, I think the upstream kernel was 2.6.39 at that time, so I stopped trying.
With 3.3.0-rc5, a 64 bit kernel works fine for me, again. Yay!
As a side note, it's a pity that gcc in 32 bit Fedora does not support -m 64 to support building 64 bit kernels.
-- MST
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