[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
8.04.1 HP DC7700 I too experienced massive slow down going from 1Gb to 3Gb with 8.04.1 The whole system slows down with almost any task maxing out a core (100% CPU). The boot process is slow and sometimes drivers fail to load. The problems start after Loading hardware drivers. All is slow from then on. The 8.04 server CD takes 2.5mins to boot instead of 20secs, (after choosing the install option). I can't install 8.10 on my machine either due to a different problem. The memory appears fine after a week of memtest86+. XP is fine. Removing the extra memory reverts the system to normal speed. Thank you Fr3ddie for such a comprehensive report. -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
Thanks Fr3ddie, I'm marking this Fix Released for Intrepid. In order to install the Intrepid kernel on your Hardy install you'll need to enable the Intrepid repository from your sources.list file within Hardy. Thanks. ** Changed in: linux (Ubuntu) Status: New = Fix Released -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
I'm sorry for the late. It works! The 2.6.27 kernel works very well and see 2.9 GiB of RAM, with no slowness problem at boot or after the boot. I attach the DMESG of the live cd just in case it could be useful (there's a strange bugged bios detected that I can't understand O_o). And now: how can I install the Intrepid kernel (with the headers and the nVidia driver) on my Hardy?? :) Please tell me what I need to do :) ** Attachment added: DMESG.tar.gz http://launchpadlibrarian.net/17437826/DMESG.tar.gz -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
Just downloaded/verified/burned. I'll let you know how it works with 3 GiB of RAM tomorrow night, 8-9-2008 at 20:00 (UTC+2), more or less. I can't install on my HD this new version 'cause I need stability now (I'm workin' on my thesis), so I'll try it live (but the Hardy live doesn't start at all so it could be still useful...), I'm sorry :( Thanks for all your efforts, really :) P.S.: Do you know that if it will work you'll *have to* explain me how to install the new kernel/nvidia driver on my Hardy? ;) -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test: 1) If you are comfortable installing packages on your own, the linux- image-2.6.27-* package is currently available for you to install and test. --or-- 2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch http://www.ubuntu.com/testing for Alpha5 to be announced. You should then be able to test via a LiveCD. Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback. ** Tags added: cft-2.6.27 -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
Thanks to you, I'll come back if I find new informations. Have a nice summer -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
Done. After a 26h test there are *no errors* displayed by memtest. And now? :( -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
From your bootchart graphs I can see that, with 3GB of ram, udevd and modprobe go crazy. However, nothing suspicious in your dmesg log... -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
So you are convinced this should be a bug? Or you think that could be something else? To me this is the only explanation, I've tried everything but there are no other reasons to such a behaviour :( -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
We haven't yet located the source of the problem, just the symptoms. It might be a bug, but then, a bug of what package? The problem is also that there are no error messages to point us in the right direction, just a very slow system. I'm afraid I cannot think of any other questions to ask you at the moment. I'm leaving this report open. Thank you for your efforts so far in trying to triage this bug... -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
Have you tried running memtest86+ from the grub menu? This will tell you if your memory slots are corrupted... -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
Thanks for your response, can I ask why do you say that the software RAID is the problem? It is there also when I'm using 2.5 GiB RAM and everything goes smooth. In addition, the slowness begin just a fraction of second after the grub splash disappear, tons of log's lines before the kernel only know of the software RAID. I can say just after the processor is recognized, very, very soon. If you need, I can try to boot with the 3 GiB of RAM *and* without the RAID disks to see if something change. PS: If you refer to the fdisk -l output I can say that is the standard output for a software RAID, there is no problem if fdisk can't see a valid partition table, because the /md0 is only a fake device (created via mdadm) *directly* formatted as ext3, with no partitions. I have seen others software RAID that had the same configuration with no problems. -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
Try this: install bootchart and then have a look at the graphs created in /var/log/bootchart... -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
Ok, I'll try tonight at 20:00 (GMT+1) and will post the result so you can have a better idea of when is this happening (I don't know if I'm able to read those graphs :)). Thanks -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
Here I am, I've done the test with Bootchart. As supposed I'm not so able to understand the graphs but as I can see they're very different, also if I can't understand if mdadm is responsible for such a different behaviour. As I can see maybe isn't a mdadm issue because the slowness start very soon in the boot process and the CPU seems crazy after a few seconds. The CPU/IO ratio is very high when the 3 GiB of RAM are installed and more balanced when there are only 2.5 GiB. An important thing I think I haven't explained so well is that the slowness is *permanent*, it isn't limited to the boot phase.*All* of the OS is slow *after* the boot process, so it's unusable in that condition. This is why I can't leave the additional 512 MiB bank slotted in, slowness at boot could be acceptable for me, but in the after condition the OS is too slow to be usable :( This is the best I can do for now, please tell me if you need something else and if there is a chance to see this bug fixed in this Ubuntu release or if I need to wait 'till October for the next release/kernel :( Is the situation clearer? ** Attachment added: bootchart logs http://launchpadlibrarian.net/15832578/Bootchart.tar.gz -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB od RAM make linux *slow*
** Attachment added: All logs I made http://launchpadlibrarian.net/15788233/DEBUG.tar.gz -- [Hardy] 3 GiB od RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
** Summary changed: - [Hardy] 3 GiB od RAM make linux *slow* + [Hardy] 3 GiB of RAM make linux *slow* ** Description changed: Ubuntu Hardy v8.04.1 This is the hardware configuration: MB: ASUS P4C800-E Deluxe RAM: 4 modules of Kingston KVR400X72C3A (400 MHz, PC3200, DDR with ECC) Actual RAM banks configuration is with 2.5 GiB disposed this way: 1GiB512MiB1GiB and everything works fine. If I reach 3 GiB, placing the banks this way: 1GiB512MiB1GiB512MiB (so Dual Channel works) everything is *really slow*. The system tooks 12 (twelve) minutes to load (from the disappearing of the grub splash) when normally it take 1'15. I tried a lot of parameters in the kernel line of menu.lst (irqpoll, noapic, acpi=off, etc., also mixed in various flavours) but anything has changed. I also tried to update-initramfs but it was unuseful. Also the single mode is slow and the Ubuntu liveCD *doesn't boot at all* (after some minutes it brings me to the busybox shell). The BIOS doesn't have any problem when the 3 GiB of RAM are installed, it sees all the banks with no issues and nor the Windows XP SP2 has any problem (it sees the 3 GiB and works with no problem at all); it was almost 9 months I hadn't to boot Windows this is really a sad day for me :( I have to underline that ALL the banks are from the same vendor, the same type and the same version (KVR400X72C3A), only sizes are different (1+1GiB and 512+512MiB). Please let me know something, I attached all the logs I can make to help your work, just tell me if you need something else. Thanks for all your work and for the effort you put in making Ubuntu better. + + Grub kernel line: kernel /vmlinuz-2.6.24-19-generic root=UUID + =46150dad-ee8f-4e44-863d-e5cd4bdff81e ro noquiet splash locale=it_IT + vga=0x305 acpi_osi=Linux ** Description changed: Ubuntu Hardy v8.04.1 This is the hardware configuration: MB: ASUS P4C800-E Deluxe RAM: 4 modules of Kingston KVR400X72C3A (400 MHz, PC3200, DDR with ECC) Actual RAM banks configuration is with 2.5 GiB disposed this way: 1GiB512MiB1GiB and everything works fine. If I reach 3 GiB, placing the banks this way: 1GiB512MiB1GiB512MiB (so Dual Channel works) everything is *really slow*. The system tooks 12 (twelve) minutes to load (from the disappearing of the grub splash) when normally it take 1'15. I tried a lot of parameters in the kernel line of menu.lst (irqpoll, noapic, acpi=off, etc., also mixed in various flavours) but anything has changed. I also tried to update-initramfs but it was unuseful. Also the single mode is slow and the Ubuntu liveCD *doesn't boot at all* (after some minutes it brings me to the busybox shell). The BIOS doesn't have any problem when the 3 GiB of RAM are installed, it sees all the banks with no issues and nor the Windows XP SP2 has any problem (it sees the 3 GiB and works with no problem at all); it was almost 9 months I hadn't to boot Windows this is really a sad day for me :( I have to underline that ALL the banks are from the same vendor, the same type and the same version (KVR400X72C3A), only sizes are different (1+1GiB and 512+512MiB). Please let me know something, I attached all the logs I can make to help your work, just tell me if you need something else. Thanks for all your work and for the effort you put in making Ubuntu better. - Grub kernel line: kernel /vmlinuz-2.6.24-19-generic root=UUID - =46150dad-ee8f-4e44-863d-e5cd4bdff81e ro noquiet splash locale=it_IT - vga=0x305 acpi_osi=Linux + Kernel: Ubuntu 2.6.24-19.34-generic + Grub kernel line: kernel /vmlinuz-2.6.24-19-generic root=UUID=46150dad-ee8f-4e44-863d-e5cd4bdff81e ro noquiet splash locale=it_IT vga=0x305 acpi_osi=Linux -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 245222] Re: [Hardy] 3 GiB of RAM make linux *slow*
Your problem seems to be originating in the raid (/dev/md0)... I will look more tomorrow -- [Hardy] 3 GiB of RAM make linux *slow* https://bugs.launchpad.net/bugs/245222 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
