Daniel Schwager
2008-Jun-10 06:39 UTC
[Xen-users] Probs with kernel selfmade 2.6.18.8 for ubuntu-DomU HVM (want more HDD performance, PV driver)
Hi,
I''m not able to compile the xen PV-drivers (unmodified_drivers)
In an ubuntu (kernel > 2.6.24) - this is a know issue.
Independent of this, i would like to get a better
HDD-IO-performance (actual only about 10MB/sec).
For this, I try to install the 2.6.18.8 kernel, but while
booting, I get a kernel panic:
apt-get install hgsvn hg-buildpackage
apt-get install kernel-package libncurses5-dev debhelper html2text
debconf-utils fakeroot
apt-get install libdb3-dev
hg clone http://xenbits.xensource.com/linux-2.6.18-xen.hg
cd linux-2.6.18-xen.hg
cp /boot/config.... ./.config
make all
make install
make modules
make modules_install
update-initramfs -c -k 2.6.18.8
# update menu.lst
Reboot & kernel panic
Does somebody compiled the kernel 2.6.18.8 and installed it in a DomU ?
DomU is a xen-3.2-testing. The "normal" ubuntu with the dist-kernel
works well.
Viele Gruesse
Daniel Schwager
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Daniel Schwager
2008-Jun-10 07:45 UTC
AW: [Xen-users] Probs with kernel selfmade 2.6.18.8 for ubuntu-DomU HVM (want more HDD performance, PV driver)
> What kind of kernel panic is reported to you?> Maybe it''s only because 2.6.18 does not support disklabels whereasubuntu defaults to disklables? Whow ! fixed the disklabels to native devices - an no kernel panic occurs ! But now, booting the kernel hangs: kernel /boot/vmlinuz-2.6.18.8 root=/dev/sda1 ro If I disable apic kernel /boot/vmlinuz-2.6.18.8 root=/dev/sda1 ro noapic nolapic acpi=off I got Regards Danny _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Emre ERENOGLU
2008-Jun-10 09:17 UTC
Re: [Xen-users] Probs with kernel selfmade 2.6.18.8 for ubuntu-DomU HVM (want more HDD performance, PV driver)
Hi, I used to get it working on Pardus 2007 with it''s original stock 2.6.18 kernel, after compiling the unmodified_drivers. With the new Pardus 2008 one which is coming with 2.6.25 kernel, I gave up after unsuccessful compilation attempts and decided to give a try to KVM instead. \ It works very good, getting 1.5 Gbits/sec on network running with virtio drivers. I''ll try to check back why i can''t compile the Xen PV drivers on this machine when I have time. Emre On Tue, Jun 10, 2008 at 9:45 AM, Daniel Schwager <Daniel.Schwager@dtnet.de> wrote:> > What kind of kernel panic is reported to you? > > > Maybe it''s only because 2.6.18 does not support disklabels whereas ubuntu > defaults to disklables? > > > > Whow ! fixed the disklabels to native devices - an no kernel panic occurs ! > > > > But now, booting the kernel hangs: > > kernel /boot/vmlinuz-2.6.18.8 root=/dev/sda1 ro > > > > > > > > > > > > If I disable apic > > kernel /boot/vmlinuz-2.6.18.8 root=/dev/sda1 ro noapic nolapic > acpi=off > > I got > > > > > > > > Regards > > Danny > > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >-- Emre _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Stephan Seitz
2008-Jun-10 09:42 UTC
Re: AW: [Xen-users] Probs with kernel selfmade 2.6.18.8 for ubuntu-DomU HVM (want more HDD performance, PV driver)
Daniel Schwager schrieb:>> What kind of kernel panic is reported to you? > > > Maybe it''s only because 2.6.18 does not support disklabels whereas > ubuntu defaults to disklables? > > > > Whow ! fixed the disklabels to native devices - an no kernel panic occurs ! > > > > But now, booting the kernel hangs: > > kernel /boot/vmlinuz-2.6.18.8 root=/dev/sda1 roDid you substitute the labels in /etc/fstab as well?> If I disable apic > > kernel /boot/vmlinuz-2.6.18.8 root=/dev/sda1 ro noapic > nolapic acpi=offDue to your screenshots, i''m usure if you mean dom0 or domU ? For domUs just # cat /etc/event.d/tty1 | sed ''s,tty1,xvc0,g'' >/etc/event.d/xvc0 # echo xvc0 >>/etc/securetty and/or add extra = ''xencons=tty1'' to your domU config file. The latter is my preferred solution ;) cheers, -- Stephan Seitz Senior System Administrator *netz-haut* e.K. multimediale kommunikation zweierweg 22 97074 würzburg fon: +49 931 2876247 fax: +49 931 2876248 web: www.netz-haut.de <http://www.netz-haut.de/> registriergericht: amtsgericht würzburg, hra 5054 _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users