[07:25] <susundberg> uhh, my 3.8.X kernels do not boot, instead they give me kernel panic
[07:25] <susundberg> or no panic but stackdump + no boot
[07:26] <susundberg> Any hints how to get the text that i see on the screen to a file so i can search the issue?
[08:34] <guest____> #u+1
[11:42] <BluesKaj> Hiyas all
[12:19] <susundberg> Hi
[12:24] <susundberg> BluesKaj: can you spare me a moment? My 13.04 kernel 3.8.X is segfaulting on every boot but 3.5.X works fine, i should check what is wrong but taking photo from the display sounds stupid, any suggestions? I have checked kernel.log but its not there (as it hapens on the boot i guess .. )
[12:25] <k1l> susundberg: since 13.04 is released you should ask in #ubuntu
[12:28] <BluesKaj> susundberg, if it's segfaulting then it's difficult to know what's breaking , best to purge the 3.8 kernel and use the 3.5
[12:28] <susundberg> k1l: yeah i guess, but the question how to get kernel dump to a text file is  not really release related anyhow ..
[12:28] <susundberg> BluesKaj: thanks
[12:29] <susundberg> I kind of though to file report but i am not going to take photos of the screen ;)
[12:29] <k1l> susundberg: so you should prefere the main channel. yes.
[15:49] <johnjohn101> have saucy installed as vmware machine.  kernel 3.9 very nice
[15:56] <johnjohn101> do you think .10 or .11 will be the released kernel?
[16:09] <Anca-Emanuel> johnjohn101: 3.10.x    look at https://wiki.ubuntu.com/SaucySalamander/ReleaseSchedule  Aug 15: 12.04.3
[18:04] <lordievader> Good evening.
[18:13] <bekks> Anca-Emanuel: Where do you see 3.10.x there?
[18:13] <bekks> The kernel freeze happens on October, 3rd
[18:22] <Anca-Emanuel> bekks: kernel 3.10 will take at least 60 days to develop. That will be july.
[18:24] <Anca-Emanuel> bekks: then they need something to deliver for the hardware enablement stack for LTS 12.04.3
[18:26] <johnjohn101> so will 12.04.03 have the 3.10 kernel?
[18:27] <bekks> Anca-Emanuel: And? 60 days after end of July we will be at 3.11 possible - end of september :)
[18:27] <alankila> hmm... They aren't supposed to update the kernel version in the stable series?
[18:27] <bekks> Anca-Emanuel: So its not that clear which kernel version will be used, isnt it?
[18:28] <alankila> Ah, I see a precise-updates option for a newer kernel than 3.2
[18:28] <Anca-Emanuel> johnjojn101: 12.04.1 have 3.5 kernel;  12.04.2 have 3.8 kernel from raring... guess
[18:28] <johnjohn101> i have the 3.5 kernel on 12.04.whatever now
[18:29] <lordievader> Anca-Emanuel: 12.04.2 is already release, should have the 3.5 kernel.
[18:51] <BluesKaj> for a simple quick check of system activity, ctrl+esc
[19:09] <johnjohn101> are we getting gcc 4.8?
[19:11] <jtaylor> its already in
[19:13] <johnjohn101> woot, was going to try to slam it into 12.04 but didn't get around to it, now i have a chance to test!!
[19:14] <alankila> is there a metapackage for getting all the updated packages at once?
[19:14] <alankila> for instance the kernel won't update by default, apparently
[19:19] <vibhav> gcc 4.8 is in
[19:21] <johnjohn101> is it bad that when ever i share folders between two ubuntu machines, i use samba to do it?
[19:22] <alankila> no, I'd use samba in every case. It seems to be the most productized solution.
[19:22] <alankila> meaning you can basically right click on a folder icon and get it to work, maybe, without having to puzzle out anything much
[19:22] <alankila> just like windows I guess
[19:22] <johnjohn101> yeah,  windows solution for ubuntu
[19:23] <alankila> though some people seem to dislike it when something ordinarily complex becomes rather easy.
[19:23] <johnjohn101> doesn't seem right.  yeah, i click share on one folder and then use connect to server on another machine and voila, ez file transfer
[19:24] <johnjohn101> well it's from the windows world and not the linux world.
[19:24] <alankila> I had more trouble getting file sharing to work on windows today... mostly because it's a locked down windows machine and the GUI didn't work, but "net use t: \\blahblah\blaa /permsistent:yes /user:blaa" did
[19:25] <johnjohn101> i still use net use and my coworkers say i'm too old fashioned
[19:27] <yofel> alankila: kernel should update automatically as long as you have linux-image-generic installed
[19:27]  * yofel runs 3.9.0-0
[19:28] <alankila> yofel: it doesn't acquire the precise-update, only new kernels from precise I think...
[19:28] <yofel> oh, you were talking about precise...
[19:29] <alankila> Anyway it doesn't actually matter to me in practice
[19:31] <johnjohn101> kernel updates seems really only necessary for hardware
[19:32] <alankila> yeah these are virtual systems
[19:32] <alankila> I'm keen on getting new kernel versions because I run btrfs. Risky as hell though I haven't lost data yet and I have terabytes on it. but I'm about to start using it on a server with customer data, which means I'm going to do backups extra carefully.
[19:38] <bjsnider> alankila, as long as you do snapshots and have some unused space and whatnot you're ok
[19:39] <alankila> yeh that's what I think
[19:40] <alankila> though I do wonder about my sanity. Still, the experience with btrfs has been positive so far and I've used it on a backups volume due to the snapshot capability for long time
[19:45] <johnjohn101> you should post your findings somewhere and share the knowledge
[19:46] <alankila> long being over a year, but still there's generally some 10 GB of new stuff going in every day and snapshots are kept from days to 1 month with roughly exponential backoff in how the old snapshots get deleted
[19:47] <alankila> I think you could easily torture btrfs for a few days for similar level of exercise of the filesystem, so my accumulated experience is not very valuable
[19:50] <alankila> plus properly constructed test would be able to validate that the filesystem has kept the data correctly.
[19:51] <alankila> the fact I have a backup volume that appears to hold files but which I basically never need means it's not exactly a convincing demonstration of the filesystem's stability. But it has run actual virtual machines for months too and without any issues
[19:51] <alankila> these virtual machines would crash on data corruption pretty soon
[20:02] <johnjohn101> yeah, good luck with all that
[20:02] <alankila> though only 3.8 kernel provided reasonable performance for VM disk images
[20:03] <alankila> btrfs is attractive in many ways in that it provides atomic snapshots that allow continued writing ... just such a pain in the ass with the risk that it might crash or corrupt itself somehow
[20:03] <alankila> the feature set is not bad, and it's right in the kernel, and works with everything.
[20:04] <alankila> like grub. Better than xfs even.  If you reboot too quick after a new kernel, there's stuff in journal which grub isn't capable of reading
[20:04] <alankila> and I dare not even try ZFS for the time being
[20:05] <johnjohn101> i would love to see an article about zfs on ubuntu
[20:05] <alankila> The reason why I mention XFS is that it's another serious contender for a VM host because it has supported a version of hole punch ioctl for a long time. It used to be completely XFS-specific but it allows fstrim on guest to free image range on the host side
[20:05] <johnjohn101> not even sure what that means.
[20:07] <alankila> it means VM disk images can be say 100 GB large but only consume like 1 GB of space. If you do a lot of stuff like touch a lot of disk blocks, they grow, even if the real data contained on the guest FS is still 1 GB
[20:07] <alankila> with support for fstrim and filesystem capable of hole-punching, that space can be freed.
[20:08] <johnjohn101> only used when its used
[20:08] <alankila> I went from 10 GB disk images to 2 GB disk images when I trimmed them
[20:08] <alankila> for instance loop mount can be performed on the raw disk image and fstrim can be performed on the loop mount nowadays
[20:09] <alankila> it will be translated by the kernel's loopback mount driver to hole punch ioctls
[20:09] <alankila> qemu 1.4 users can enjoy ata trim support on the IDE driver
[20:12] <alankila> enabling the trim was difficult though, because it requires passing a parameter discard_granularity=512 to the IDE device description and libvirt doesn't currently support this parameter, so passing it was difficult. I ended up writing a shell wrapper that notices the -device argument and appends it when ide-disk is being defined
[20:12] <alankila> it wasn't pretty but whatever
[20:13] <alankila> annoyingly, the libvirt people even validate that the paramters used in the domain xml specifications can be interpreted correctly by the invoked qemu so they forbid using a comma as value inside. I tried many hacks. For once, someone had engineered this competently.
[20:14] <alankila> I almost quit using libvirt that day and I keep on thinking maybe I should have thrown it to the river. All it really does is start my VMs at boot and stop them at shutdown. That's not a whole lot of useful work, but I hate writing init.d scripts
[20:15] <hachre> who is running saucy yet ;D
[20:17] <johnjohn101> i have it
[20:17] <hachre> is it useable?
[20:17] <hachre> im installing it right now
[20:18] <johnjohn101> so far so good. doesn't look like much has changed since 13.04.  3.9 kernel/ gcc 4.8 is all i know about
[20:18] <Anca-Emanuel> There is any Ubuntu developers here ? Do you plan to support f2fs ? http://ubuntuforums.org/showthread.php?t=2137837&page=2
[20:18] <hachre> ya thought so
[20:19] <johnjohn101> don't worry, they'll figure out how to break something!
[20:19] <hachre> Anca-Emanuel: usually if its in debian its gonna be in ubuntu
[20:20] <hachre> Anca-Emanuel: if you want something in ubuntu the best way is to get it into debian
[20:21] <johnjohn101> what file system is that for?
[20:21] <hachre> new filesystem for smartphone flash the way it looks to me
[20:23] <johnjohn101> right for samsung fones
[20:24] <johnjohn101> wondering if perl 5.16 will be the default perl
[20:26] <Anca-Emanuel> johnjohn101: f2fs is for flash based memory devices. Early benchmarks: http://www.phoronix.com/scan.php?page=article&item=linux_f2fs_usb3&num=1
[20:28] <jtaylor> isn't that in the kernel?
[20:28] <jtaylor> or not yet?
[20:29] <johnjohn101> http://www.phoronix.com/scan.php?page=news_item&px=MTMxMTU
[20:30] <johnjohn101> looks like 3.9 kernel
[20:30] <jtaylor> then itll be in saucy
[20:30] <jtaylor> maybe already is
[20:30] <johnjohn101> or you have to update kernel in raring
[20:34] <Anca-Emanuel> jtaylor: what ? f2fs ? yes it is included in kernel, you can read the docs here: https://github.com/torvalds/linux/blob/master/Documentation/filesystems/f2fs.txt
[21:27] <Anca-Emanuel> hachre: http://cards.linaro.org/browse/CARD-277  sent mail to linaro-dev and Wook Wookey (debian bootstrap expert for arm64)