On Sat, 2013-06-01 at 21:19 +1000, Michael Ellerman wrote: > On Fri, May 31, 2013 at 04:33:24PM +0530, Aneesh Kumar K.V wrote: > > From: "Aneesh Kumar K.V" <aneesh.ku...@linux.vnet.ibm.com> > > > > If a hash bucket gets full, we "evict" a more/less random entry from it. > > When we do that we don't invalidate the TLB (hpte_remove) because we assume > > the old translation is still technically "valid". This implies that when > > we are invalidating or updating pte, even if HPTE entry is not valid > > we should do a tlb invalidate. > > > > Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com> > > Has this always been a bug? I assume not. > > I'm asking because I have a kernel that's crashing and I'm wondering if > I might need this commit.
Bug got introduced in either b1022fbd293564de91596b8775340cf41ad5214c or 7e74c3921ad9610c0b49f28b8fc69f7480505841, the jury is still out on that one :-) It's unlikely to crash the kernel however (it *can*, it's just unlikely). Patch is good to have regardless... Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
