Messages in this thread |  | | Date | Tue, 6 Jun 2017 19:46:24 -0400 (EDT) | | From | Paolo Bonzini <> | | Subject | Re: WARNING: CPU: 0 PID: 1752 at arch/x86/kernel/traps.c:788 |
| |
----- Original Message ----- > From: "Andy Lutomirski" <luto@kernel.org> > To: "Richard Weinberger" <richard@nod.at>, "Paolo Bonzini" <pbonzini@redhat.com> > Cc: "Andy Lutomirski" <luto@kernel.org>, "linux-x86 64" <linux-x86_64@vger.kernel.org>, linux-kernel@vger.kernel.org, > "Thomas Meyer" <thomas@m3y3r.de> > Sent: Wednesday, June 7, 2017 12:46:12 AM > Subject: Re: WARNING: CPU: 0 PID: 1752 at arch/x86/kernel/traps.c:788 > > On Thu, Jun 1, 2017 at 3:46 PM, Richard Weinberger <richard@nod.at> wrote: > > Hi! > > > > UserModeLinux hits the following warning on the host. > > I've extracted the evil ptrace() command sequence, please see attached > > program, > > it triggers the warning too. > > This sounds like a known QEMU bug. Paolo, did this get fixed in QEMU? > If so, what version?
If I understood what bug you are referring to, 2.9.0. Commit c52ab08aee ("target-i386: Fix eflags.TF/#DB handling of syscall/sysret insns", 2016-12-22).
Paolo
|  |