Messages in this thread | | | Date | Thu, 26 Oct 2017 09:42:28 -0700 | From | Andrei Vagin <> | Subject | Re: [PATCH 1/3] x86/entry: Fix idtentry unwind hint |
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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
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