Messages in this thread | | | Subject | Re: 2.6.26.6-rt11: BUGs (sleeping function called from invalid context) | From | Peter Zijlstra <> | Date | Fri, 07 Nov 2008 22:47:51 +0100 |
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On Fri, 2008-11-07 at 13:35 -0800, Fernando Lopez-Lezcano wrote: > On Fri, 2008-11-07 at 20:16 +0100, Peter Zijlstra wrote: > > On Fri, 2008-11-07 at 14:01 -0500, Steven Rostedt wrote: > > > Peter, I think we've seen this before. It is the highmem code sleeping. > > > > I've been working on an alternative kmap_atomic implementation for -rt, > > the below has been build and booted but not stressed, anybody care to > > give it a spin ? > > I'll give it a try. Anything in particular I should try to do? Or not > do? Or watch for?
Lots of I/O should stress the i386 highmem stuff. If all is well it works, if not, crashes and splats.
> -- Fernando > > > > --- > > arch/x86/mm/highmem_32.c | 130 ++++++++++++++++++++++++++++++++++++++++++--- > > include/asm-x86/highmem.h | 11 ---- > > include/linux/sched.h | 5 ++ > > kernel/sched.c | 10 ++++ > > 4 files changed, 137 insertions(+), 19 deletions(-) > > [MUNCH] > >
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