Messages in this thread | | | Date | Thu, 19 Mar 2009 14:17:57 -0700 | Subject | Re: ftruncate-mmap: pages are lost after writing to mmaped file. | From | Ying Han <> |
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On Thu, Mar 19, 2009 at 1:21 PM, Linus Torvalds <torvalds@linux-foundation.org> wrote: > > > On Thu, 19 Mar 2009, Linus Torvalds wrote: >> >> Ahh, so you re-created it? On ext2 only, or is it visible on ext3 as well? >> I've not even tested - I assumed that I would have to boot into less >> memory and downgrade my filesystem to ext2, which made me hope somebody >> else would pick it up first ;) > > Oh, btw, can people who see this (Ying Han, Nick and apparently Jan) > detail their configurations, please? In particular > > - SMP? (CONFIG_SMP and how many cores do you have if so?) "CONFIG_SMP=y" the testing machine i was using has 16 cores.
> > - PREEMPT (NONE/VOLUNTARY or full preempt?) CONFIG_PREEMPT_NONE=y # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT is not set CONFIG_PREEMPT_BKL=y
> > - RCU (CLASSIC/TREE/PREEMPT?) Not in my .config file. > > since those affect the kinds of races we can see a lot. > > Linus > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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