On Sunday 21 June 2009, Sean MacLennan wrote: > I found the source of the badness. The backtrace is correct: > > uic_init_one
So that's in arch/powerpc/sysdev/uic.c. > ___alloc_bootmem > ___alloc_bootmem_nopanic > alloc_arch_preferred_bootmem > > In alloc_arch_preferred_bootmem we have: > > if (WARN_ON_ONCE(slab_is_available())) > return kzalloc(size, GFP_NOWAIT); > > Since the slab is available (it had better be or the call will return > NULL), we get the badness message, then a successful return from > kzalloc. > > I believe the author wants something like: > > if (slab_is_available()) > return kzalloc(size, GFP_NOWAIT); > else > WARN_ON_ONCE(1); Well, I myself have no idea. It could also indicate a bug in the uic code. But let's CC some people responsible for this code. Pekka recently added this WARN that triggers in your case; David and Paul look to be the people most involved in the uic code. Start of the thread is at http://lkml.org/lkml/2009/6/20/165. Cheers, FJP _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
