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Pappy's Kernel Seeds Part IV
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pappy_mcfae
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Joined: 27 Dec 2007
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Location: Pomona, California.

PostPosted: Sun Jan 29, 2012 10:39 am    Post subject: Reply with quote

sebB,

According to all I've read on the topic, the current seed default (NO_HZ=off) gives the best system performance. It also makes the CPU do more work, and therefore use more energy. Changing to (NO_HZ=on) allows the CPU to go idle when timer interrupts aren't being generated. This allows for energy savings, but does so at the cost of a "snappy" feel to the desktop.

I am not sure about why you're getting the results you are, but according to everything I've read on the topic, the best way to go is with (NO_HZ=off) for speed. I had done some experimentation in the past with this setting, and adopted it as it is because it tended to make videos run a bit smoother.

I am at a loss.

Cheers,
Pappy
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kingfame_147
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PostPosted: Sat Feb 04, 2012 10:42 am    Post subject: Reply with quote

Hi,

I haven't read the whole topic, so please excuse me if I say something redundant :)

I explored your website today (thats for the great work btw) and saw at your settings page a questions about ati radeon kms.


Imho the answer is: If you have a supported card (see support matrix on the radeon website) turn it on by all means! UMS is not supported by the developers at all and they will not fix bugs in UMS anymore. KMS is the way to go and is, on supported chipset, very stable. I'm reading the mailing list a lot and that's what my impression for what the people are writing there.


Regards,
fame
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pappy_mcfae
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PostPosted: Sat Feb 04, 2012 10:51 am    Post subject: Reply with quote

A lot of goodies from kernel.org today means new seeds. I've just uploaded .configs for 2.6.32.56, 3.0.19, 3.2.2-gentoo 3.2.3, and 3.2.4 in both x86 and x86_64 flavors. Enjoy!

Cheers,
Pappy
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pappy_mcfae
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PostPosted: Sat Feb 04, 2012 10:54 am    Post subject: Reply with quote

kingfame_147,

That's good to know. All my present desktop systems use PCI-E, and the only ATI card I have (if I haven't gotten rid of it) is AGP, so I am out of the loop on that. I'm still doing page updates, so I will probably add that tidbit to the updated information.

Thanks for the heads up.

Cheers,
Pappy
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Moriah
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PostPosted: Mon Feb 06, 2012 5:04 pm    Post subject: Reply with quote

Pappy, do you remember that AMD quad-core machine I have with 8 GB ram and 5 hot swap sata drives that had the flakey problem where it seemed to stop responding unless I gave it an interrupt with the mouse or keyboard? Well, it had the fan in the sata backplane die a few weeks ago, and I had a hard time finding a replacement that would fit properly, as it was a thin profile fan. Well, I got a fan that was a bit thicker, and it still fit, so I used it, but things were getting pretty hot, according to the drive temps. I finally found a fan with the thin profile on amazon and ordered it. When I installed it, the temps cam back down, but by that time, another flakiness had developed. After several hours of running, anywhere from 2 to 24 or so, the drives would all disapear. They could not be accessed. Everything that was already loaded and running still worked fine. I am not using swap, as I have 8 gb ram in the box, so these tasks were all running without any disk activity. I had enough buffer space to hold any log file entries or other stuff that would need to go to disk, so it just sat there andran anyway, even though the drives were all inaccessible.

I did some experimenting, and determined that the drives were all ok, but the sata backplane was at fault. Yesterday, I replaced the backplane with a newer and nicer model -- it takes a bare drive, instead of needing a carrier screwed onto the drive. I was hoping that this would also cure the other flakiness I had lived with for over a year. This system has been non-critical, in terms of its purpose, for a long time, but I now need to put it back into service, and it needs to be reliable with no flakiness, includine the ability to reboot unattended.

I was wondering if you would be interested in halping me get it up and running reliably. It has been running 2.6.37-gentoo-r4 (I think, I am not near the system right now), but as long as I am going to rebuild it from scratch, I want to put the latest reliable kernel on it, and I obviously use your seeds. Please tell me which kernel to start with, and any special considerations, and what files you want to see after the first boot of the new kernel.

Thanks! :-)
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pappy_mcfae
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PostPosted: Mon Feb 06, 2012 11:27 pm    Post subject: Reply with quote

I keep up with new kernel releases on my multi-core system. core-too, my core-2 is running 3.2.4 presently. I am probably going to be updating that tonight, as 3.2.5 was released just today. My single processor systems are using 2.6.39.4. Both kernel versions seem to be working just fine.

Since you're using a multi-core system, I'd recommend the 3.2.x series. Everything, including lm_sensors will work properly on that system.

As for the files to check, I usually check /var/log/dmesg to see that all the drivers have loaded properly. You should be able to use make oldconfig to move up to the next kernel version. Once you enter that command, say "no" to all the "new" stuff that will be presented to you. That should give you a new kernel with everything the old one had.

Of course, with the new backplane, it might be a good idea to do the lspci -n thing to make sure the new one has the same (or close) PCI ID. It probably won't matter, but it's still a good idea. As usual, if you want me to set it up for you, send the results of lspci -n. I would assume everything else is the same.

Cheers,
Pappy
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Moriah
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PostPosted: Tue Feb 07, 2012 2:34 am    Post subject: Reply with quote

Well, the sata backplane should not change any pci stuff, as the stat interfaces are still on the motherboard. It is basicly just a fancy way to mount the drives so they are front panel accessible and hot swappable. The sata cables still run to the motherboard. I have it working with the old kernel now.

BUT I COULDN'T PASS UP A DEAL! :twisted:

Micro center, where I went to get the new sata backplane, had a deal on the amd fx 8120 processors. If you bought one, you got a gigabyte motherboard for a penny! So I also got some other stuff, and I will be building a new web server to host, among other things, the pappy's seeds mirror site. :wink:

I got 8 GB or ram and another 4 slots of sata backplane, a power supply, etc. I already had a case. That case currently has 3 non-hot-swapable but front panel accessible mobile carriers with 500 GB IDE drives, and a 250 GB ide drive bolted inside the case, a cd/dvd drive, and an amd athlon 2 GHZ cpu and eithr 1.5 or 2 GB ram. The old web server has a 1.5 GHz amd duron and either 1 gb ram or 1.5 gb ram, and a pair of ide mobile carriers with 500 gb drives, case power supply, cd/dvd drive, etc. Both motherboards and the case are atx profile.

After I get the new stuff working, if you want the old athlon and duron stuff, I will ship it to you. I will be keeping the drives to keep other old boxes alive for a few more years. Let me know. I'm always happy to support the pappy! :wink:
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pappy_mcfae
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PostPosted: Tue Feb 07, 2012 6:50 am    Post subject: Reply with quote

I'm all for new hardware. My snail-mail address has changed. I'll get it to you via private message. I'll also set up a new seed for 3.2.5... the latest from kernel.org.

Cheers,
Pappy
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pappy_mcfae
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PostPosted: Tue Feb 07, 2012 6:51 am    Post subject: Reply with quote

While I'm at it, there's new source in portage. That means new seeds at the site. I've just uploaded .configs for 3.0.20 and 3.2.5 in both x86 and x86_64 flavors. Enjoy!

Cheers,
Pappy
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pappy_mcfae
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PostPosted: Wed Feb 08, 2012 6:38 am    Post subject: Reply with quote

I've just uploaded .configs for 3.0.20-gentoo and 3.2.5-gentoo in both x86 and x86_64 flavors. Enjoy!

Cheers,
Pappy
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pappy_mcfae
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PostPosted: Fri Feb 10, 2012 6:51 am    Post subject: Reply with quote

Dumping old sources, it's just one of the things I do. It usually means that I've reached a bit of overload on my /usr/src directory, and that only happens on new seed nights. I've just uploaded .configs for 2.6.32-hardened-r90 and 3.2.5-hardened in both x86 and x86_64 flavors. Enjoy!

Cheers,
Pappy
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Kollin
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PostPosted: Fri Feb 10, 2012 11:32 am    Post subject: Reply with quote

Just to let you know Pappy

Code:

 "File systems  --->"
    <*> The Extended 4 (ext4) filesystem
          [*]   Use ext4 for ext2/ext3 file systems



after that you can disable ext2 and ext3 support.It works perfectly :wink:

Here is the help:

Quote:
CONFIG_EXT4_USE_FOR_EXT23: │
│ │
│ Allow the ext4 file system driver code to be used for ext2 or │
│ ext3 file system mounts. This allows users to reduce their │
│ compiled kernel size by using one file system driver for │
│ ext2, ext3, and ext4 file systems. │
│ │
│ Symbol: EXT4_USE_FOR_EXT23 [=y] │
│ Type : boolean │
│ Prompt: Use ext4 for ext2/ext3 file systems │
│ Defined at fs/ext4/Kconfig:29 │
│ Depends on: BLOCK [=y] && EXT4_FS [=y] && (EXT3_FS [=n]=n || EXT2_FS [=n]=n) │
│ Location: │
│ -> File systems │
│ -> The Extended 4 (ext4) filesystem (EXT4_FS [=y])

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pappy_mcfae
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PostPosted: Fri Feb 10, 2012 8:30 pm    Post subject: Reply with quote

That's good to know. Thanks for the heads-up.

Cheers,
Pappy
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pappy_mcfae
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PostPosted: Wed Feb 15, 2012 8:56 am    Post subject: Reply with quote

Well, it's been a busy past couple of days. From troubleshooting roommate vehicles to moving to all machines but the web server to gcc-4.5.3-r2, to moving my main lappy to KDE-4 (yes, I went there), time has been at a bit of a premium. There were lots of new sources released yesterday, but this machine was deep in the plock-tau of all that change. Today was a good day to upload .configs for 2.6.27.60, 2.6.27.61, 2.6.32.57, 3.0.20-tuxonice, 3.0.21, 3.2.6, and 3.2.6-gentoo in both x86 and x86_64 flavors. Enjoy!

Cheers,
Pappy
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pappy_mcfae
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PostPosted: Fri Feb 17, 2012 8:00 am    Post subject: Reply with quote

It appears as if the "post reply" button has returned to a state where I wind up at the main forum page. Hitting "quote" allows me to post, albeit with a bit of consternation. Be that as it may, new sources means new seeds. I've just uploaded .configs for 2.6.32-hardened-r91 and 3.2.6-hardened in both x86 and x86_64 flavors. Enjoy!

Cheers,
Pappy
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pappy_mcfae
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PostPosted: Tue Feb 21, 2012 9:08 am    Post subject: Reply with quote

While the post reply button remains problematic, there's nothing wrong with new seeds. I've just uploaded .configs for 3.0.22 and 3.2.7 in both x86 and x86_64 flavors. Enjoy!

Also a heads up. Check your .configs. If you have CONFIG_USB_DEVICEFS=y, turn it off. I have been informed that it can cause issues with udev. For more information, check this URL. It currently defaults to on in the seeds. It will be fixed whenever I get ready to do a new iteration of settings for the seeds. Thanks to DanneStrat for the heads-up on this.

Cheers,
Pappy
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mackal
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PostPosted: Wed Feb 22, 2012 8:40 am    Post subject: Reply with quote

pappy_mcfae wrote:
I've just uploaded .configs for 3.0.22 and 3.2.7 in both x86 and x86_64 flavors. Enjoy!


I think something might have gone wrong since I do not see them :(


Last edited by mackal on Wed Feb 22, 2012 8:56 pm; edited 1 time in total
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pappy_mcfae
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PostPosted: Wed Feb 22, 2012 8:56 am    Post subject: Reply with quote

They're located under vanilla. The first is listed as 3.0.22-<your_architecture>-08.config, and the other as 3.2.7-<your_architecture>-08.config, where <your_architecture> is either x86 or x86_64

Cheers,
Pappy
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pappy_mcfae
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PostPosted: Wed Feb 22, 2012 9:02 am    Post subject: Reply with quote

It seems the "post reply" button is fixed again. Thanks!

Cheers,
Pappy
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pappy_mcfae
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PostPosted: Sun Feb 26, 2012 8:46 am    Post subject: Reply with quote

Two new sources and one hold over tonight. I just uploaded .configs for 2.6.32-hardened-r92, 3.0.22-gentoo, and 3.2.7-hardened in both x86 and x86_64 flavors. Enjoy!

Cheers,
Pappy
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pappy_mcfae
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PostPosted: Tue Feb 28, 2012 7:12 am    Post subject: Reply with quote

I've just uploaded .configs for 3.0.22-tuxonice and 3.2.8 in both x86 and x86_64 flavors. Enjoy!

Cheers,
Pappy
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PostPosted: Thu Mar 01, 2012 9:03 am    Post subject: Reply with quote

I've just uploaded .configs for 3.0.23 and 3.2.9 in both x86 and x86_64 flavors. Enjoy!

Cheers,
Pappy
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PostPosted: Mon Mar 05, 2012 8:34 am    Post subject: Reply with quote

A few more seeds tonight; three fairly new, and one straggler. I've just uploaded .configs for 2.6.32-hardened-r93, 2.6.32.58, 3.2.9-gentoo, and 3.2.9-hardened in both x86 and x86_64 flavors. Enjoy!

Cheers,
Pappy
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pappy_mcfae
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PostPosted: Sat Mar 10, 2012 8:02 am    Post subject: Reply with quote

I'm so glad that hardened-sources exist. They're always good for keeping things moving in the source biz. I've just uploaded .configs for 2.6.32-hardened-r94 and 3.2.9-hardened-r1 in both x86 and x86_64 flavors. Enjoy!

Cheers,
Pappy
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pappy_mcfae
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PostPosted: Tue Mar 13, 2012 7:01 am    Post subject: Reply with quote

I've just uploaded .configs for 3.0.24 and 3.2.10 in both x86 and x86_64 flavors. Enjoy!

Cheers,
Pappy
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