Mike Lee
2006-Feb-15 23:38 UTC
[Xen-users] XWindows locks on Xen 3.0 and IRQ 16 gets disabled
Hello All,
I am new to the Xen scene but an experienced Linux user. Today I
downloaded and installed the tarballed version of Xen 3.0 on my Dell
PowerEdge 2850 server (1x3.4GHz x86_64 proc, 4GB RAM, 700GB storage). I
successfully made my initrd image from the 2.6.12.6-xen (not xen0) libs
and booted up. However, now that I have modified the grub.conf file and
specified the dom0_mem for the master domain and rebooted, Xwindows
hangs when it (Xwindows) tries to start up. If I leave the dom0_mem
setting out of my grub.conf file, everything works fine, but now I
can''t
allocate memory to my slave OSs. Any thoughts. FYI; I did see on the
FAQ that this could be caused by agpart, but it was refering to the 2.x
series of Xen.
Also, after approx. 20 mins. after running the Xen0 master kernel,
the system logger says that it is disabling IRQ 16. Any thoughts as to
why? Below I have both my grub.conf file and the entries in my
/var/log/messages file (regarding the IRQ16 disabling).
Thanks in advance.
Mike Lee
Below is my /etc/grub.conf config:
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Xen 3.0 / XenLinux 2.6
root (hd0,0)
kernel /xen-3.0.gz dom0_mem=512M console=vga
module /vmlinuz-2.6-xen root=/dev/VolGroup00/LogVol00 ro rhgb
quiet console=tty0
module /initrd-2.6-xen.img
title CentOS (2.6.9-22.0.2.106.unsupportedsmp)
root (hd0,0)
kernel /vmlinuz-2.6.9-22.0.2.106.unsupportedsmp ro
root=/dev/VolGroup00/LogVol00 rhgb quiet
initrd /initrd-2.6.9-22.0.2.106.unsupportedsmp.img
title CentOS (2.6.9-22.0.2.106.unsupported)
root (hd0,0)
kernel /vmlinuz-2.6.9-22.0.2.106.unsupported ro
root=/dev/VolGroup00/LogVol00 rhgb quiet
initrd /initrd-2.6.9-22.0.2.106.unsupported.img
title CentOS-4 x86_64 (2.6.9-22.ELsmp)
root (hd0,0)
kernel /vmlinuz-2.6.9-22.ELsmp ro root=/dev/VolGroup00/LogVol00
rhgb quiet
initrd /initrd-2.6.9-22.ELsmp.img
title CentOS-4 x86_64-up (2.6.9-22.EL)
root (hd0,0)
kernel /vmlinuz-2.6.9-22.EL ro root=/dev/VolGroup00/LogVol00
rhgb quiet
initrd /initrd-2.6.9-22.EL.img
Below is my messages log entry when IRQ 16 is disabled:
Feb 15 16:25:57 nmg-xen-master kernel: irq 16: nobody cared!
Feb 15 16:25:57 nmg-xen-master kernel:
Feb 15 16:25:57 nmg-xen-master kernel: Call
Trace:<ffffffff801560e0>{__report_bad_irq+48}
<ffffffff801561b9>{note_interrupt+
89}
Feb 15 16:25:57 nmg-xen-master kernel:
<ffffffff801559ec>{__do_IRQ+252} <ffffffff80116d14>{do_IRQ+52}
Feb 15 16:25:57 nmg-xen-master kernel:
<ffffffff8010eb65>{evtchn_do_upcall+197}
<ffffffff80113aa9>{do_hypervisor_call
back+17}
Feb 15 16:25:57 nmg-xen-master kernel:
<ffffffff8010d0ca>{hypercall_page+202}
<ffffffff8010d0ca>{hypercall_page+202}
Feb 15 16:25:57 nmg-xen-master kernel:
<ffffffff80111178>{xen_idle+104} <ffffffff801111ca>{cpu_idle+58}
Feb 15 16:25:57 nmg-xen-master kernel:
Feb 15 16:25:57 nmg-xen-master kernel: handlers:
Feb 15 16:25:57 nmg-xen-master kernel: [<ffffffff802a37f0>]
(usb_hcd_irq+0x0/0x70)
Feb 15 16:25:57 nmg-xen-master kernel: Disabling IRQ #16
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Ernst Bachmann
2006-Feb-16 09:55 UTC
Re: [Xen-users] XWindows locks on Xen 3.0 and IRQ 16 gets disabled
On Thursday 16 February 2006 00:38, Mike Lee wrote:> Hello All, > > I am new to the Xen scene but an experienced Linux user. Today I > downloaded and installed the tarballed version of Xen 3.0 on my Dell > PowerEdge 2850 server (1x3.4GHz x86_64 proc, 4GB RAM, 700GB storage). I > successfully made my initrd image from the 2.6.12.6-xen (not xen0) libs > and booted up. However, now that I have modified the grub.conf file and > specified the dom0_mem for the master domain and rebooted, Xwindows > hangs when it (Xwindows) tries to start up. If I leave the dom0_mem > setting out of my grub.conf file, everything works fine, but now I can''t > allocate memory to my slave OSs. Any thoughts. FYI; I did see on the > FAQ that this could be caused by agpart, but it was refering to the 2.x > series of Xen. > Also, after approx. 20 mins. after running the Xen0 master kernel, > the system logger says that it is disabling IRQ 16. Any thoughts as to > why? Below I have both my grub.conf file and the entries in my > /var/log/messages file (regarding the IRQ16 disabling). > > Thanks in advance. > > Mike Lee> Below is my messages log entry when IRQ 16 is disabled: > > Feb 15 16:25:57 nmg-xen-master kernel: irq 16: nobody cared! > Feb 15 16:25:57 nmg-xen-master kernel: > Feb 15 16:25:57 nmg-xen-master kernel: Call > Trace:<ffffffff801560e0>{__report_bad_irq+48} > <ffffffff801561b9>{note_interrupt+ > 89} > Feb 15 16:25:57 nmg-xen-master kernel: > <ffffffff801559ec>{__do_IRQ+252} <ffffffff80116d14>{do_IRQ+52} > Feb 15 16:25:57 nmg-xen-master kernel: > <ffffffff8010eb65>{evtchn_do_upcall+197} > <ffffffff80113aa9>{do_hypervisor_call > back+17} > Feb 15 16:25:57 nmg-xen-master kernel: > <ffffffff8010d0ca>{hypercall_page+202} > <ffffffff8010d0ca>{hypercall_page+202} > Feb 15 16:25:57 nmg-xen-master kernel: > <ffffffff80111178>{xen_idle+104} <ffffffff801111ca>{cpu_idle+58} > Feb 15 16:25:57 nmg-xen-master kernel: > Feb 15 16:25:57 nmg-xen-master kernel: handlers: > Feb 15 16:25:57 nmg-xen-master kernel: [<ffffffff802a37f0>] > (usb_hcd_irq+0x0/0x70) > Feb 15 16:25:57 nmg-xen-master kernel: Disabling IRQ #16Hmmm, I have a similar message on one of my boxes, but it doesn''t happen after a while on its own, instead always exactly the moment an USB device is plugged in. USB keeps working afterwards, so I didn''t bother searching for the reason. I don''t run Xwindows, though, the box hosts some database + webserver domains. Server is 2xXeon in EM64T mode with HT enabled, 8GB ram. /Ernst _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users