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View Full Version : [ubuntu] Amazing Long-Standing Intrepid Kernel Bug Causes Soft Lockups



nutznboltz
May 1st, 2009, 11:08 PM
Ladies and Gentlemen, see the amazing long-standing Intrepid Kernel Pagecache Bug...

See Linus Torvalds use a four-letter word about this bug (http://lkml.org/lkml/2009/1/5/307).

See a list of six bug reports dating from Intrepid Alpha release to the current Intrepid release now:

268215 (https://bugs.launchpad.net/bugs/268215)
289158 (https://bugs.launchpad.net/bugs/289158)
300329 (https://bugs.launchpad.net/bugs/300329)
303064 (https://bugs.launchpad.net/bugs/303064)
312163 (https://bugs.launchpad.net/bugs/312163)
348218 (https://bugs.launchpad.net/bugs/348218)

All of them describe soft lockups while running Intrepid 2.6.27-* kernels (less than 2.6.27-14)

Wonder how something of this magnitude has gone on so under-reported?

Help by testing the proposed 2.6.27-14 kernel that contains Linus' fix:

Desktop Interpid version


/etc/apt/sources.list.d/proposed.list contains:


deb http://archive.ubuntu.com/ubuntu/ intrepid-proposed main

/etc/apt/preferences contains:


Package: *
Pin: release a=intrepid-security
Pin-Priority: 990

Package: *
Pin: release a=intrepid-updates
Pin-Priority: 900

Package: *
Pin: release a=intrepid-proposed
Pin-Priority: 400


sudo aptitude update

sudo aptitude -t intrepid-proposed install linux-image-2.6.27-14-generic

and maybe if you have the need for the kernel headers as well:

sudo aptitude -t intrepid-proposed install linux-headers-2.6.27-14-generic

The base header package will be pulled in automatically.

reboot into new kernel

Unfortunately, update-manager will pester you about other intrepid-proposed packages. To stop this comment out the intrepid-proposed apt repository and "sudo aptitude update" again. The kernel will not downgrade because of the /etc/apt/preferences configuration.

/etc/apt/sources.list.d/proposed.list will contain:


# deb http://archive.ubuntu.com/ubuntu/ intrepid-proposed main

sudo aptitude update


Server Interpid version:

/etc/apt/sources.list.d/proposed.list contains:


deb http://archive.ubuntu.com/ubuntu/ intrepid-proposed main

/etc/apt/preferences contains:


Package: *
Pin: release a=intrepid-security
Pin-Priority: 990

Package: *
Pin: release a=intrepid-updates
Pin-Priority: 900

Package: *
Pin: release a=intrepid-proposed
Pin-Priority: 400


sudo aptitude update

sudo aptitude -t intrepid-proposed install linux-image-2.6.27-14-server linux-image-server

and maybe if you have the need for the kernel headers as well:


sudo aptitude -t intrepid-proposed install linux-headers-2.6.27-14-server

The base header package will be pulled in automatically.


Thanks :)

upchucky
May 1st, 2009, 11:23 PM
ummm, what is your point? intrepid never was a long term supported release and is still beta

nutznboltz
May 1st, 2009, 11:37 PM
ummm, what is your point? intrepid never was a long term supported release and is still beta

I'm trying to encourage people to test the intrepid-proposed kernel mostly.

Also, your implict idea that kernel 2.6.27 is an Ubuntu Intrepid invention is false. 2.6.27 is not and never was a beta kernel.