[PlanetCCRMA] Fw: [Bug 773170] [abrt] kernel: BUG: MAX_STACK_TRACE_ENTRIES too low!

[William M. Quarles]

On 01/11/2012 03:23 PM, Fernando Lopez-Lezcano wrote:
> On 01/11/2012 12:15 PM, William M. Quarles wrote:
>> Fernando,
>>
>> Yes, I understand why I have the rt kernel installed, what I don't understand
>> is why whenever I install the Planet CCRMA rt kernel it becomes the default
>> selection in the bootloader upon installation. Traditionally on Fedora (perhaps
>> ol' RHL, too, it's been a while) when a new kernel is installed it goes to the
>> top of the list, but the previous default remains the same for the user to
>> update, in case there are any incompatibilities with the old kernel. That was
>> the "protocol" of which I spoke.
> 
> Ah, ok, thanks for the explanation.
> 
> Is this behavior new? At least in Fedora 14 the opposite is true, newly 
> installed kernels are by default the default (ie: if I install a new 
> Fedora kernel and immediately reboot I boot into the new kernel without 
> doing anything special). As you say old kernels are kept just in case 
> you need to boot into them because of a problem with the new one.
> 
> I would be surprised if Fedora has changed this behavior. Usually new 
> kernel releases plug (sometimes big) security holes and having a boot go 
> into the old kernel automatically would defeat the purpose of the upgrade.
> 
> -- Fernando

No, apparently the behavior is old I guess. I've been very intermittent
in my use of Fedora in recent years. Last time I used Fedora, v. 14 was
the latest and 15 was to be out shortly, and I guess I never noticed the
change. I just installed Fedora 16, followed by 15 (since it seems that
the packaging on both of these is taking a while).

Peace,
William

> 
> 
>> I am sending the links for both of the rt kernel errors to the email address you
>> specified.
>>
>> Peace,
>> William
>>
>>
>> ----- Original Message ----
>> From: Fernando Lopez-Lezcano<nando at ccrma.Stanford.EDU>
>> To: William M. Quarles<walrus at bellsouth.net>
>> Cc: planetccrma at ccrma.Stanford.EDU
>> Sent: Wed, January 11, 2012 1:23:29 PM
>> Subject: Re: [PlanetCCRMA] Fw: [Bug 773170] [abrt] kernel: BUG:
>> MAX_STACK_TRACE_ENTRIES too low!
>>
>> On 01/11/2012 06:25 AM, William M. Quarles wrote:
>>> I didn't realize the rt kernel was set as default (seems out of protocol  for
>>> new kernel to take default away from existing kernel),
>>
>> I don't quite follow. What do you mean by "out of protocol"? If you have the
>> Planet CCRMA rt kernel, it is because you either installed it manually with yum
>> (after adding the Planet CCRMA repositories), or installed the planetccrma-core
>> package that brings it in. If you do that of course it becomes the default! (but
>> you can still can boot the original Fedora kernel if you so desire). One of the
>> goals of Planet CCRMA is to add the rt kernel and associated utilities for best
>> rt performance.
>>
>>> but here is  bug #2 I found last night.
>>
>> Thanks. I see that this was automatically gathered by abrt... It would also be
>> best to  cc' the linux-rt-users at vger.kernel.org mailing list on rt bug reports,
>> those are the gurus that can solve rt related problems :-)
>>
>> -- Fernando
>>
>>
>>> ----- Forwarded Message ----
>>> From: "bugzilla at redhat.com"<bugzilla at redhat.com>
>>> To: walrus at bellsouth.net
>>> Sent: Wed, January 11, 2012 9:02:16 AM
>>> Subject: [Bug 773170] [abrt] kernel: BUG: MAX_STACK_TRACE_ENTRIES too low!
>>>
>>> Please do not reply directly to this email. All additional
>>> comments should be made in the comments box of this bug.
>>>
>>>
>>> https://bugzilla.redhat.com/show_bug.cgi?id=773170
>>>
>>> Josh Boyer<jwboyer at redhat.com>   changed:
>>>
>>>              What    |Removed                     |Added
>>> ----------------------------------------------------------------------------
>>>                Status|NEW                         |CLOSED
>>>            Resolution|                            |NOTABUG
>>>           Last Closed|                            |2012-01-11 09:02:15
>>>
>>> --- Comment #1 from Josh Boyer<jwboyer at redhat.com>   2012-01-11 09:02:15 EST
>> ---
>>> This seems to have been hit with a hand build -rt kernel.  Fedora doesn't
>> build
>>> or support that, so you'll need to take this up with upstream.