On Wed, Feb 24, 2016 at 7:58 AM, Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> wrote: > Sebastian Ott and Gerald Schaefer reported random crashes on s390. > It was bisected to my THP refcounting patchset. > > The problem is that pmdp_invalidated() called with wrong virtual > address. It got offset up by HPAGE_PMD_SIZE by loop over ptes. > > The solution is to introduce new variable to be used in loop and don't > touch 'haddr'. Thanks, I applied this directly rather than wait for this to go through Andrew (which would have been "proper channels"). This issue has been worrying me for a while now and was my main core worry for 4.5. Good to have it resolved, and thanks to everybody who tested and got involved. Linus -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>