On Thu, Oct 26, 2017 at 10:24:29AM -0500, Josh Poimboeuf wrote: > On Wed, Oct 25, 2017 at 02:07:38PM -0700, Andrei Vagin wrote: > > Hi Josh, > > > > Here is one more warning: > > [ 5.852094] WARNING: can't dereference iret registers at > > ffffb6ce01b7ffe0 for ip entry_SYSCALL_64_fastpath+0xa/0xc2 > > Thanks, I hadn't seen this one yet. > > I suspect this is in the middle of the ENABLE_INTERRUPTS() paravirt > code, which would mean this is another issue that will be fixed by my > "Make pv ops code generation more closely match reality" patches. > > If you can share either the entry_64.o file or the .config, and what > virt platform it's running on (kvm, xen, native), I should be able to > confirm the issue.
The config is attached to this e-mail. It is a travis-ci vm. I think they are hosted in Google Cloud: [ 0.000000] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] Hypervisor detected: KVM https://travis-ci.org/avagin/linux/jobs/292773933 > > I'm in Prague this week but I should have a v2 of those patches in a > week or two (will cc you). Good! > > -- > Josh
