Re: [LAU] apt-get and RT kernel strangeness

On 12/15/2010 04:31 AM, yermandu wrote:
> Check this http://jackaudio.org/linux_group_sched

grep -i RT_GROUP_SCHED /boot/config-2.6.33.7-rt29-1-amd64
# CONFIG_RT_GROUP_SCHED is not set

>
> 2010/12/14 rosea.grammostola <rosea.grammostola@email-addr-hidden
> <mailto:rosea.grammostola@email-addr-hidden>>
>
> On 12/14/2010 04:50 PM, rosea.grammostola wrote:
>
> On 12/14/2010 04:26 PM, Jörn Nettingsmeier wrote:
>
> On 12/14/2010 04:10 PM, rosea.grammostola wrote:
>
> On 12/13/2010 09:38 PM, rosea.grammostola wrote:
>
> Hi,
>
> I have an oddity on Ubuntu Lucid.
>
> Installing libboost1.40-dev, default kernel, no
> problemo.
>
> Installing libboost1.40-dev, RT kernel, install
> (unpacking/
> processing) takes minuts!
>
> I have this oddity with another package, but most
> packages install
> normal.
>
> $ uname -a
> Linux ubuntu 2.6.33-29-realtime #1-Ubuntu SMP
> PREEMPT RT Wed Aug 4
> 20:14:20 UTC 2010 i686 GNU/Linux
>
> from: https://launchpad.net/~abogani/+archive/ppa/
> <https://launchpad.net/%7Eabogani/+archive/ppa/>
>
> $ apt-cache policy libboost1.40-dev
> libboost1.40-dev:
> Installed: 1.40.0-4ubuntu4
> Candidate: 1.40.0-4ubuntu4
> Version table:
> *** 1.40.0-4ubuntu4 0
> 500 http://nl.archive.ubuntu.com/ubuntu/
> lucid/main Packages
> 100 /var/lib/dpkg/status
>
>
> (maybe not interesting, but iotop says:
> CONFIG_TASK_DELAY_ACCT not
> enabled in kernel, cannot determine SWAPIN and IO %)
>
> Any idea what this could be?
>
> wild guesses:
>
> Thanks
>
> * swap disabled in the rt kernel, and you're low on RAM?
>
> $ grep -i swap /boot/config-2.6.33-29-realtime
> CONFIG_SWAP=y
> CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y
> CONFIG_X86_BSWAP=y
> CONFIG_RING_BUFFER_ALLOW_SWAP=y
>
>
> 2GB RAM
>
> * are you running real-time tasks in the background (such
> as jack)?
>
> No
>
> Hmm....
>
>
> Strange that is only happens with some packages like libboost-dev...
>
> Are there other RT kernels available for Ubuntu Lucid, to test a
> bit? Should a kernel made for Debian also work?
>
> Thanks in advance,
>
> \r
>
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>
>
>
> --
> yermandu [at] gmail dot com
>

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Received on Wed Dec 15 16:15:02 2010