Qubes 3.0-rc1 u2mfn crashes
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HW42
Apr 25, 2015, 1:14:57 AM4/25/15
to qubes...@googlegroups.com
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Hi,
I tried to update my Qubes system to 3.0-rc1 according to the
experimental in-place instructions.
After the update the u2mfn module (in the VM) crashed after booting a
VM (kernel OOPS) when using the updated kernel (3.18.10-2).
I also tried the old kernel but then qrexec failed with a permission
denied error.
Since this renders the system pretty unusable I needed to restore my
backup (full disk backup - not qubes backup).
While I saved /var/log of the updated system I saw after restoring the
backup that the console was not saved in /var/log/xen/console/... so I
sadly cannot provide the log of the OOPS message.
I probably have this evening/night again time to further
experiments/research.
HW42
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Hi,
I tried to update my Qubes system to 3.0-rc1 according to the
experimental in-place instructions.
After the update the u2mfn module (in the VM) crashed after booting a
VM (kernel OOPS) when using the updated kernel (3.18.10-2).
I also tried the old kernel but then qrexec failed with a permission
denied error.
Since this renders the system pretty unusable I needed to restore my
backup (full disk backup - not qubes backup).
While I saved /var/log of the updated system I saw after restoring the
backup that the console was not saved in /var/log/xen/console/... so I
sadly cannot provide the log of the OOPS message.
I probably have this evening/night again time to further
experiments/research.
HW42
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HW42
Apr 25, 2015, 4:23:36 AM4/25/15
to qubes...@googlegroups.com
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
HW42:
Hash: SHA512
> Hi,
>
> I tried to update my Qubes system to 3.0-rc1 according to the
> experimental in-place instructions.
>
> After the update the u2mfn module (in the VM) crashed after booting
> a VM (kernel OOPS) when using the updated kernel (3.18.10-2).
>
> I also tried the old kernel but then qrexec failed with a
> permission denied error.
>
> Since this renders the system pretty unusable I needed to restore
> my backup (full disk backup - not qubes backup).
>
> While I saved /var/log of the updated system I saw after restoring
> the backup that the console was not saved in
> /var/log/xen/console/... so I sadly cannot provide the log of the
> OOPS message.
The kernel OOPS was clearly in u2mfn. As far as I remember the error
>
> I tried to update my Qubes system to 3.0-rc1 according to the
> experimental in-place instructions.
>
> After the update the u2mfn module (in the VM) crashed after booting
> a VM (kernel OOPS) when using the updated kernel (3.18.10-2).
>
> I also tried the old kernel but then qrexec failed with a
> permission denied error.
>
> Since this renders the system pretty unusable I needed to restore
> my backup (full disk backup - not qubes backup).
>
> While I saved /var/log of the updated system I saw after restoring
> the backup that the console was not saved in
> /var/log/xen/console/... so I sadly cannot provide the log of the
> OOPS message.
message was said something like "assert ... == 0 failed" and the
stacktrace "u2mfn_release" and "__free_page".
> I probably have this evening/night again time to further
> experiments/research.
>
> HW42
>
>
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Marek Marczykowski-Górecki
Apr 25, 2015, 4:14:41 PM4/25/15
to HW42, qubes...@googlegroups.com
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Hash: SHA1
On Sat, Apr 25, 2015 at 10:23:17AM +0200, HW42 wrote:
> HW42:
> > Hi,
> >
> > I tried to update my Qubes system to 3.0-rc1 according to the
> > experimental in-place instructions.
> >
> > After the update the u2mfn module (in the VM) crashed after booting
> > a VM (kernel OOPS) when using the updated kernel (3.18.10-2).
> >
> > I also tried the old kernel but then qrexec failed with a
> > permission denied error.
> >
> > Since this renders the system pretty unusable I needed to restore
> > my backup (full disk backup - not qubes backup).
> >
> > While I saved /var/log of the updated system I saw after restoring
> > the backup that the console was not saved in
> > /var/log/xen/console/... so I sadly cannot provide the log of the
> > OOPS message.
>
> The kernel OOPS was clearly in u2mfn. As far as I remember the error
> message was said something like "assert ... == 0 failed" and the
> stacktrace "u2mfn_release" and "__free_page".
Did you updated that template? qrexec permission denied error suggests
R2 qrexec running on R3 dom0. Regardless of that, it shouldn't end up
with OOPS... Anyway if you could get some more details when this happens
(VM startup? some app startup? new window? close of some window? was
that netvm?), that would be really helpful.
- --
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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On Sat, Apr 25, 2015 at 10:23:17AM +0200, HW42 wrote:
> HW42:
> > Hi,
> >
> > I tried to update my Qubes system to 3.0-rc1 according to the
> > experimental in-place instructions.
> >
> > After the update the u2mfn module (in the VM) crashed after booting
> > a VM (kernel OOPS) when using the updated kernel (3.18.10-2).
> >
> > I also tried the old kernel but then qrexec failed with a
> > permission denied error.
> >
> > Since this renders the system pretty unusable I needed to restore
> > my backup (full disk backup - not qubes backup).
> >
> > While I saved /var/log of the updated system I saw after restoring
> > the backup that the console was not saved in
> > /var/log/xen/console/... so I sadly cannot provide the log of the
> > OOPS message.
>
> The kernel OOPS was clearly in u2mfn. As far as I remember the error
> message was said something like "assert ... == 0 failed" and the
> stacktrace "u2mfn_release" and "__free_page".
R2 qrexec running on R3 dom0. Regardless of that, it shouldn't end up
with OOPS... Anyway if you could get some more details when this happens
(VM startup? some app startup? new window? close of some window? was
that netvm?), that would be really helpful.
- --
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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HW42
Apr 25, 2015, 4:22:43 PM4/25/15
to Marek Marczykowski-Górecki, qubes...@googlegroups.com
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Hash: SHA512
Marek Marczykowski-Górecki:
I had updated the templates (I tried my Debian template as well as my
template based on fc20-minimal).
It always happened at VM startup (relative lately in the boot
process). Therefore I had never a working qrexec.
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Marek Marczykowski-Górecki:
template based on fc20-minimal).
It always happened at VM startup (relative lately in the boot
process). Therefore I had never a working qrexec.
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HW42
Apr 26, 2015, 8:05:24 PM4/26/15
to Marek Marczykowski-Górecki, qubes...@googlegroups.com
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
HW42:
Hash: SHA512
working but not those which are based on my fc20 template.
See attachment for the log of the u2mfn crash.
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