[uml-devel] 2.6.9-bb4 released

[uml-devel] 2.6.9-bb4 released

[Christopher S. Aker]

Blaisorblade hasn't had time to send out an announcement to the list, so on behalf of
him I'm announcing the availability of 2.6.9-bb4.

http://www.user-mode-linux.org/~blaisorblade/patches/guest/uml-2.6.9-bb4/

Most notable patches are:
- uml-hang-on-2.6.9-host
- uml-fix-reboot-skas
- uml-extramask (fixes the signal-delivery patch which caused zombies)
- uml-timer-context (fixes panic with check_rlimit in call trace)

There are many, many fixes in this release and I'm probably forgetting some that
deserve mentioning, but Blaisorblade hasn't updated his changelog yet.

-Chris



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[uml-devel] Re: 2.6.9-bb4 released

[Sven Köhler]

> http://www.user-mode-linux.org/~blaisorblade/patches/guest/uml-2.6.9-bb4/

runs stable now for about 24 hours, longer than any version before ;-)

> Most notable patches are:
> - uml-hang-on-2.6.9-host
> - uml-fix-reboot-skas

well, does this "fix-reboot" mean, that it doesn't reboot anymore? 
because it doesn't when i tell it to

sometimes it even segfaults, when halting or rebooting.



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Re: [uml-devel] Re: 2.6.9-bb4 released

[Blaisorblade]

On Saturday 04 December 2004 23:57, Sven Köhler wrote:
> > http://www.user-mode-linux.org/~blaisorblade/patches/guest/uml-2.6.9-bb4/

> runs stable now for about 24 hours, longer than any version before ;-)
Any -bb version you mean, I hope.

Including security fixes (which I had left to Bodo and Jeff at the beginning) 
required destabilizing the -bb tree, which would otherwise have been a really 
stabler version.

One *big* and basical problem was fixed exactly in -bb4, which explains why 
it's stabler for you.

The bug was in uml-signal-delivery.patch IIRC. It's very big, and when I was 
compelled to merge it to include further security fixes depending on it, I 
was very worried about it giving problems.

But since the first reports I got were just about trivial issues which were 
easily fixed (I got *real* bug-reports much later), I just thought it was ok 
(and I wasn't able to reproduce at all the problem).

> > Most notable patches are:
> > - uml-hang-on-2.6.9-host
> > - uml-fix-reboot-skas

> well, does this "fix-reboot" mean, that it doesn't reboot anymore?

That is not the intention. Just unapply it for now, and help diagnosing the 
problem. Also, make sure *that* patch is at fault... start reverting end 
patches away (with patch-scripts, please, don't go doing it by hand, it's a 
bit of a massacre) and report when it works again. I would expect the problem 
to be a bit earlier (except if you also tested -bb3 or something such).

> because it doesn't when i tell it to

> sometimes it even segfaults, when halting or rebooting.

Ok, let's say it this way: UML happens to reboot depending on how much lucky 
you / your box are.

On my system, with *any* UML version, out of three reboots, I get on average 
two correct reboots and one segfault. I only can get it to reliably *crash* 
on reboot by applying an obviously correct patch (Jeff Dike is still 
astonished that it can hurt anything).

For Bodo, it only works with the patches at the end, not otherwise. For me 
it's no difference without those.

Hearing that for you rebooting *worked* makes me just wonder a bit more.

The fact it halts when halting is something new, however.
-- 
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729
http://www.user-mode-linux.org/~blaisorblade


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Re: [uml-devel] Re: 2.6.9-bb4 released

[Blaisorblade]

On Monday 06 December 2004 21:13, Blaisorblade wrote:
> On Saturday 04 December 2004 23:57, Sven Köhler wrote:

> But since the first reports I got were just about trivial issues which were
> easily fixed (I got *real* bug-reports much later), I just thought it was
> ok (and I wasn't able to reproduce at all the problem).
>
> > > Most notable patches are:
> > > - uml-hang-on-2.6.9-host
> > > - uml-fix-reboot-skas
> >
> > well, does this "fix-reboot" mean, that it doesn't reboot anymore?

> That is not the intention. Just unapply it for now, and help diagnosing the
> problem. Also, make sure *that* patch is at fault... start reverting end
> patches away (with patch-scripts, please, don't go doing it by hand, it's a
> bit of a massacre) and report when it works again. I would expect the
> problem to be a bit earlier (except if you also tested -bb3 or something
> such).
Sorry, correction: I thought that patch was in since -bb4, I was just 
confused, it's in since -bb3. So, I'd expect that either you get the problem 
in the earlier patches, not the ones at the end, or you to get it starting at 
-bb3 (it's not really needed you test -bb3 if you are going to use separate 
patches).

Btw, why people seem to refuse the idea of looking at the changelogs I provide 
on my page, or at the descriptions inside the patches themselves (not sure if 
this applies to you, too)?

Also, you can download the splitout patches altogether, in the tarball you 
find there.
> > because it doesn't when i tell it to

> > sometimes it even segfaults, when halting or rebooting.
>
> Ok, let's say it this way: UML happens to reboot depending on how much
> lucky you / your box are.
>
> On my system, with *any* UML version, out of three reboots, I get on
> average two correct reboots and one segfault. I only can get it to reliably
> *crash* on reboot by applying an obviously correct patch (Jeff Dike is
> still astonished that it can hurt anything).
>
> For Bodo, it only works with the patches at the end, not otherwise. For me
> it's no difference without those.
>
> Hearing that for you rebooting *worked* makes me just wonder a bit more.
>
> The fact it halts when halting is something new, however.

-- 
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729
http://www.user-mode-linux.org/~blaisorblade


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