[PlanetCCRMA] RT Kernel Crash

[Eduardo Larroya]

  I've exactly the same problem...
Is really strange... But for sure it depends of the Nvidia driver...

If I use "nouveau" driver is really worst, because the system freezes 
randomly... :(

With Nvidia driver seems more stable, but these kernel-oops not seems a 
good thing...

In abrt:
Pid: 2693, comm: fusermount Tainted: P           
2.6.33.4-106.rt20.1.fc13.ccrma.x86_64.rt #1
Call Trace:
[<ffffffff8104bee4>] warn_slowpath_common+0x77/0x8f
[<ffffffff8104bf0b>] warn_slowpath_null+0xf/0x11
[<ffffffff8111a42c>] commit_tree+0xda/0xf5
[<ffffffff8111b27d>] attach_recursive_mnt+0xed/0x183
[<ffffffff8111b400>] graft_tree+0xed/0xef
[<ffffffff8111be27>] do_mount+0x389/0x79f
[<ffffffff810d682e>] ? strndup_user+0x58/0x80
[<ffffffff8111c2c0>] sys_mount+0x83/0xbd
[<ffffffff81009c02>] system_call_fastpath+0x16/0x1b


Al 03/07/10 18:04, En/na Jonathan E. Brickman:
> That is interesting.  I have just turned off SELinux and also disabled
> it for my RT kernel.  We'll see if crashes go away at next reboot, I
> easily believe they might.  RT adds all sorts of interesting things, and
> I could easily believe that SEL and RT could wrestle a bit for control.
>
> J.E.B.
>
>> Hi all,
>>
>> I didn't have any crashes but abrt kept thowing SELinux errors on fc 12
>> with 2.6.33-1.rt kernel. I similarly removed the complete abrt suite and
>> haven't had any problems since...
>>
>> Simon
>>
>> Am 03.07.2010 04:27, schrieb Donald Steven:
>>> After some experimenting, I removed abrt.  Viola!  No more crashes, or
>>> do we think that it's just that there are no more messages and the
>>> crashes are still occurring?  In any case, the system runs beautifully.
>>> What do we make of this?
>>>
>>> Don
>>>
>>> On 07/02/2010 05:56 AM, Donald Steven wrote:
>>>
>>>> Thanks Tracey.  I've now had the crash with the stock Fedora kernel, so
>>>> it's clearly not a ccrma-rt issue.  I suspect a daemon and will continue
>>>> to work it.  It's definitely a fedora issue, as there are no problems
>>>> with centos, opensuse, etc.
>>>>
>>>> Don
>>>>
>>>> On 07/02/2010 03:40 AM, Tracey Hytry wrote:
>>>>
>>>>
>>>>> Thanks Donald, and you too, Jonathan.
>>>>>
>>>>> I can't really make much sense of the logs but they seem to vaguely like things I've seen on one of the kernel lists.
>>>>>
>>>>> Both of your logs indicated non-tainted kernels, which is something the rt-kernel devs can use.
>>>>>
>>>>> Most of the time when I was seeing very strange problems on this machine;  usually typing "dmesg" on a term was enough to get the kernel dump.  I'd scroll up from the bottom and copy over everything from just above the kernel dump.  Also, there was always "/var/log/messages" to look at.
>>>>>
>>>>> I'm not sure what Fernando thinks about it, but I'm all for posting bug reports for the ccrma-rt-kernels here on the list.  I'm sure that the stuff that matters will get forwarded to the right people.
>>>>>
>>>>> Just try to remember that the kernel folks don't look into problems with kernels that are running proprietary drivers, so if your dump says it's "tainted" instead of "non-tainted", you are on your own!
>>>>>
>>>>> BTW, on this machine I could never turn in a bug report because it was tainted with the "nvidia" driver.  I had to run the machine with the driver because it was an "sli" card and the nouveau and nv driver would not work with it.  I finally went and replaced it with a newer, but less power hungry :) nvidia card that works with the nouveau driver.
>>>>>
>>>>> When I was having crashes it took forever to find what was wrong, and this with a stock fedora 26.32.xx kernel.  Every crash would point to something else.  I eventually found the problem after turning off all of the daemons I could, and testing, and turning stuff back on until I found that the "cpuspeed" service cannot be used on this machine.  In my case I think it may be because I'm using an early dual core amd64.
>>>>>
>>>>> Tracey.
>>>>>
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>>>>>
>>>>>
>>>>>
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