Hello everyone, On Mon, Mar 28, 2011 at 11:19:51AM +0200, Avi Kivity wrote: > On 03/28/2011 08:24 AM, Tomasz Chmielewski wrote: > > On 27.03.2011 11:42, Avi Kivity wrote: > > > > (...) > > > >> Okay, the fork came from the ,script=. > >> > >> The issue with %rsi looks like a use-after-free, however > >> kvm_mmu_notifier_invalidate_range_start appears to be properly srcu > >> protected. > > > > FYI, I saw this one as well: > > > > http://www.virtall.com/files/temp/kvm.txt > > Similar pattern - top 16 bits of %rsi are flipped. > > Marcelo, what was the option to enable padding for allocations and > overrun detection? Also use-after-free? BTW, is it genuine that a protection fault is generated instead of a page fault while dereferencing address 0x00008805d6b087f8? I would normally except a page fault from a memory dereference that doesn't alter processor state/segments. The other GFP happened in pmdp_clear_flush_notify inside collapse_huge_page. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
