> I think that this `xl` process just wait for the domain to shutdown
> or die. When we run `xl create`, before exiting there's a fork/exec of
> xl which handle a few domain events, so it looks like this stack trace
> is expected (and look like the one I have). So it don't looks like to be
> the xl
Hi Anthony
> $(debug) controls the level of optimisation of the compilation to make
> it easier to debug.
>
> So, with debug=y, we have libxenstore having issue with killing the
> its reading thread? :-(
> Maybe that reading thread is doing something that can't be stopped,
> maybe it's waiting fo
> > > (We're trying some new project management tools.) Can you try opening a
> > > bug here: https://gitlab.com/xen-project/xen/-/issues about the
> > > check-endbr.sh issue?
I'm getting a Gitlab 404 page when trying to access this link.
Are there access restrictions in place ?
And same for:
htt
Hi,
I'm facing an issue with libvirt and the LIBXL driver, failing when searching
for DMI data in /sys.
info : libvirt version: 5.0.0, package: 4+deb10u1 (Guido Günther
Thu, 05 Dec 2019 00:22:14 +0100)
error : udevGetDMIData:1719 : internal error: Failed to get udev device for
syspath '/sys/d
Hi,
> Yes I missed that PatchGuard would eventually check those shadow pages anyway.
> I was already happy to see that my breakpoints were working, and I proceeded
> to the tests
> hoping to have a quick reproduction of the bug.
>
> I implemented a basic mem_access event on the restricting to --X
Hi Andrew, Tamas,
Le mercredi, mai 29, 2019 2:49 AM, Andrew Cooper a
écrit :
> After a series of tests on 1 or 4 VCPUs, my domain end up in 2 possible
> states: - frozen: the mouse doesn't move: so I would guess the VCPU are
> blocked. I'm calling the xc_(un)pause_domain APIs multiple times w
Hi Andrew,
> > The bug is still here, so we can exclude a microcode issue.
>
> Good - that is one further angle excluded. Always make sure you are
> running with up-to-date microcode, but it looks like we back to
> investigating a logical bug in libvmi or Xen.
I reimplemented a small test, with
told me to check
with the Xen community,
therefore this email.
For reference, the original bug report on Fedora bugzilla is here:
https://bugzilla.redhat.com/show_bug.cgi?id=1701783
Thanks,
Mathieu Tarral
Sent with ProtonMail Secure Email.
Le vendredi, mai 10, 2019 5:21 PM, Andrew Cooper a
écrit :
> On 10/05/2019 16:17, Mathieu Tarral wrote:
>
> > Le jeudi, mai 9, 2019 6:42 PM, Andrew Cooper andrew.coop...@citrix.com a
> > écrit :
> >
> > > Therefore, the conclusion to draw is that it is a logi
Le jeudi, mai 9, 2019 8:08 PM, Tamas K Lengyel a écrit :
> > > > I already suggested to Mathieu to try to reproduce the issue using the
> > > > xen-access test tool that's in the Xen tree to cut out all that
> > > > complexity.
> >
> > xen-access is ok, but I've never encountered a situation where
Le jeudi, mai 9, 2019 6:42 PM, Andrew Cooper a
écrit :
> Therefore, the conclusion to draw is that it is a logical bug somewhere.
>
> First of all - ensure you are using up-to-date microcode. The number of
> errata which have been discovered by people associated with the Xen
> community is large
Hi,
following a previous conversation, i would like to catch MOV-TO-DRx VMI events
to prevent the guest from disabling my hardware breakpoints.
@Tamas pointed me to this header:
https://xenbits.xen.org/gitweb/?p=xen.git;a=blob;f=xen/include/public/vm_event.h;h=b2bafc0d77f9758e42b0d53c05a7e6bb86c
Le mardi, mai 7, 2019 2:01 PM, Mathieu Tarral a
écrit :
> > Given how many EPT flushing bugs I've already found in this area, I
> > wouldn't be surprised if there are further ones lurking. If it is an EPT
> > flushing bug, this delta should make it go away, but it
Le jeudi, avril 25, 2019 9:34 PM, Andrew Cooper a
écrit :
> On 25/04/2019 00:43, Mathieu Tarral wrote:
>
> > On Wednesday 24 April 2019 14:00, Andrew Cooper andrew.coop...@citrix.com
> > wrote:
> >
> > > On 23/04/2019 22:59, Mathieu Tarral wrote:
> > >
Le lundi, mai 6, 2019 7:07 PM, Andrew Cooper a
écrit :
> There is a lot in here.
I wanted to gather enough data before making a bug report on such a complicated
issue.
> As for your BSOD analysis, the first thing to be aware of is that Double
> Fault is not necessarily precise, which means y
ately debug it, with your help of course.
Thank you,
Mathieu Tarral
___
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
quot;offline
environment" friendly ?
-> How much of these external files could be installed via the distribution,
and linked with Xen instead of downloading a .tar.gz source ?
For example I have newlib-dev in my debian repositories.
Do I really have to download the o
On Wednesday 24 April 2019 17:35, Tamas K Lengyel
wrote:
> On Sun, Apr 21, 2019 at 4:27 PM Mathieu Tarral
> mathieu.tar...@protonmail.com wrote:
>
> > Hi,
> > I'm having an issue with Xen's VMI subsystem.
> > My goal is to build a small debugg
On Wednesday 24 April 2019 17:38, Tamas K Lengyel
wrote:
> On Wed, Apr 24, 2019 at 9:34 AM Razvan Cojocaru
> rcojoc...@bitdefender.com wrote:
>
> > On 4/24/19 6:25 PM, Tamas K Lengyel wrote:
> >
> > > On Mon, Apr 22, 2019 at 6:00 PM Mathieu Tarral
> > &
On Wednesday 24 April 2019 16:27, Nuernberger, Stefan wrote:
> On Sun, 2019-04-21 at 22:26 +0000, Mathieu Tarral wrote:
>
> > Hi,
> > I'm having an issue with Xen's VMI subsystem.
> > My goal is to build a small debugger that can break at an
> > applicatio
> Also, it's not the first time i'm having this bug,
> I was already working on Xen 6 months before:
> https://github.com/libvmi/libvmi/issues/636
I forgot to add that I was running Xen bare-metal at that time,
so yes, the bug is reproducible without KVM and nested virtualization.
___
On Monday 22 April 2019 12:28, Andrew Cooper wrote:
> On 21/04/2019 23:26, Mathieu Tarral wrote:
>
> Answering out of order.
>
> > I discussed this bug on IRC with andyhpp, who convinced me to move the
> > discussion on the mailing list.
> > Apparently the singl
On Monday 22 April 2019 11:22, Razvan Cojocaru
wrote:
> On 4/22/19 1:26 AM, Mathieu Tarral wrote:
>
> > The problem is that RtlUserThreadStart is paged-out, so i'm trying to reach
> > it via singlestepping as a backup solution.
>
> FWIW, you can just us
ssed this bug on IRC with andyhpp, who convinced me to move the
discussion on the mailing list.
Apparently the singlestepping in Xen was in a poor quality state because of
multiple layers of refactoring.
If you have any ideas, please share.
Thanks
Hi,
I think I found a small issue today in Xen's build system.
When you configure the build with --enable-systemd, and generate
a debian package with make debball, the xencommons init script
will be installed alongside the new systemd service units.
The problem is that it is not supposed to be e
Hi Jan,
> > > Without a full hypervisor log this is going to remain guesswork, but
> > > could you check whether "pcid=no" and/or "pv-l1tf=no" on the Xen
> > > boot command line help?
> >
> > [vagrant@localhost ~]$ cat /proc/cmdline
> > placeholder root=UUID=f4dcb7e6-e430-4b8b-8e83-5deb3522c88b r
is 2 general protection faults:
https://gist.github.com/Wenzel/763b17fae773f7dd6b1d8b303187f3c0
Can anyone look into this and tell me if this is a bug in Xen ?
Thanks !
--
Mathieu Tarral
Sent with ProtonMail Secure Email.
___
Xen-devel mailing list
> The "problem" presumably is a newer, more picky iasl. The problem
> being with SeaBIOS you'd generally be better off asking the SeaBIOS
> folks. Looking at 1.12.0 though I see that they've addressed the
> issue already, so you should be able to find a respective commit in
> their tree.
I have gi
dt-misc.dsl.i - 102 lines, 2567 bytes, 35 keywords
Listing File: out/src/fw/ssdt-misc.lst - 8393 bytes
Hex Dump: out/src/fw/ssdt-misc.hex - 4096 bytes
I tried to fix by removing 2 characters, but the file
out/src/fw/ssdt-misc.dsl.i is automatically regenerated.
Can anyone explain the problem
Best regards,
--
Mathieu Tarral
Sent with ProtonMail Secure Email.
___
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
ins where are the log
file and how to debug the guests and dom0 ?
I'm using Xen 4.9.2 on Ubuntu Bionic.
Thanks for your help !
--
Mathieu Tarral
Sent with ProtonMail Secure Email.
___
Xen-devel mailing list
Xen-devel@lists.xe
/issues/11
-> could it be possible that the Xen emulator failed on lfence, even though
it's a quite common instruction ?
Platform: Ubuntu 16.04 LTS (Xen 4.6)
Thanks !
--
Mathieu Tarral
Sent with ProtonMail Secure Email.
___
Xen-devel mail
32 matches
Mail list logo
