Re: Kernel Panic on FreeBSD guests with libvirt 1.2.2 and qemu 1.7.91
On 05/02/2014 3:42 pm, Andre Goree wrote: On 05/02/2014 2:18 pm, Juergen Lock wrote: In article <201405021800.s42i0tie094...@enceladus10.kn-bremen.de> you write: In article you write: On 05/01/2014 11:00 am, Andre Goree wrote: Hello, I'm running libvirt 1.2.2 and QEMU 1.7.91 on an Ubuntu 12.04LTS host. Prior to a recent upgrade, I've been able to run FreeBSD guests (both 10.0 and 9.2) perfectly fine without issue. Now, this the aforementioned versions, I'm running into a kernel panic almost immediately after booting, same message with both 10.0 & 9.2: "Fatal trap 12: page fault while in kernel mode". To ensure that it had nothing to do with my configuration [of the guest OS] I've tried installing the guest from guest using virt-install, however I still run into the same kernel panic. It'll be hard for me to post the output of the panic, so I'll try to show as much info as possible via images[1]. Upon researching, I've come across a few threads (e.g., this one[2]) that appear to be related, but none have helped. Any information that you can provide to help me get to the root of this issue would be greatly appreciated! [1]http://www.drenet.net/images/panic1.png http://www.drenet.net/images/panic2.png http://www.drenet.net/images/panic_noacpi1.png http://www.drenet.net/images/panic_noacpi2.png [2]http://forums.freebsd.org/viewtopic.php?t=36761 After using my noggin a bit, I've determine the culprit to be atkbd. If I disable it via the bootloader with "set hint.atkbd.0.disabled=1", the vm will boot fine. HOWEVER, my problem then is that I cannot use the keyboard via VNC. I'm trying to figure out ways around this...any help would be much appreciated. I've already tried setting different flags for atkbd, but no matter which flag I set, I get the kernel panic -- ostensibly because atkbd is enabled (as it must be for a flag to be set for it). I think you have hit this issue for which the workaround is a patch to seabios: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug Hm for some reason that link got truncated, try this one: https://bugs.debian.org/737142 http://git.qemu.org/?p=seabios.git;a=commit;h=8032b8a0fec550de5cb2f7d37aa031cebc2200c3 References: http://article.gmane.org/gmane.comp.emulators.qemu/254414/ https://lists.gnu.org/archive/html/qemu-stable/2013-03/msg00037.html Juergen ___ freebsd-virtualization@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to "freebsd-virtualization-unsubscr...@freebsd.org" Lol, yeah, I was gonna say...but thanks! Not sure if I'm into implementing a patch vs. finding a way around this, and I'm wondering why it reared it's head after an update to libvirt & qemu vs. earlier in my testing -- makes me think it may be an unrelated, albeit similar bug. Thanks again Juergen. Btw, from the link you posted: "From: Michael Tokarev To: 737142-cl...@bugs.debian.org Subject: Bug#737142: fixed in seabios 1.7.4-4 Source: seabios Source-Version: 1.7.4-4 We believe that the bug you reported is fixed in the latest version of seabios, which is due to be installed in the Debian FTP archive." and on my host server having the issue: "# dpkg -l |grep seabio ii seabios 1.7.4-4~cloud0 Legacy BIOS implementation" I'll try to determine which version of seabios I had running initially before the issue, however from what I can tell, an upgrade to the version that _should_ have fixed this appears be what caused my issue in the first place, heh. -- Andre Goree -=-=-=-=-=- Email - andre at drenet.net Website - http://www.drenet.net PGP key - http://www.drenet.net/pubkey.txt -=-=-=-=-=- ___ freebsd-virtualization@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to "freebsd-virtualization-unsubscr...@freebsd.org"
Re: Kernel Panic on FreeBSD guests with libvirt 1.2.2 and qemu 1.7.91
On 05/02/2014 2:18 pm, Juergen Lock wrote: In article <201405021800.s42i0tie094...@enceladus10.kn-bremen.de> you write: In article you write: On 05/01/2014 11:00 am, Andre Goree wrote: Hello, I'm running libvirt 1.2.2 and QEMU 1.7.91 on an Ubuntu 12.04LTS host. Prior to a recent upgrade, I've been able to run FreeBSD guests (both 10.0 and 9.2) perfectly fine without issue. Now, this the aforementioned versions, I'm running into a kernel panic almost immediately after booting, same message with both 10.0 & 9.2: "Fatal trap 12: page fault while in kernel mode". To ensure that it had nothing to do with my configuration [of the guest OS] I've tried installing the guest from guest using virt-install, however I still run into the same kernel panic. It'll be hard for me to post the output of the panic, so I'll try to show as much info as possible via images[1]. Upon researching, I've come across a few threads (e.g., this one[2]) that appear to be related, but none have helped. Any information that you can provide to help me get to the root of this issue would be greatly appreciated! [1]http://www.drenet.net/images/panic1.png http://www.drenet.net/images/panic2.png http://www.drenet.net/images/panic_noacpi1.png http://www.drenet.net/images/panic_noacpi2.png [2]http://forums.freebsd.org/viewtopic.php?t=36761 After using my noggin a bit, I've determine the culprit to be atkbd. If I disable it via the bootloader with "set hint.atkbd.0.disabled=1", the vm will boot fine. HOWEVER, my problem then is that I cannot use the keyboard via VNC. I'm trying to figure out ways around this...any help would be much appreciated. I've already tried setting different flags for atkbd, but no matter which flag I set, I get the kernel panic -- ostensibly because atkbd is enabled (as it must be for a flag to be set for it). I think you have hit this issue for which the workaround is a patch to seabios: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug Hm for some reason that link got truncated, try this one: https://bugs.debian.org/737142 http://git.qemu.org/?p=seabios.git;a=commit;h=8032b8a0fec550de5cb2f7d37aa031cebc2200c3 References: http://article.gmane.org/gmane.comp.emulators.qemu/254414/ https://lists.gnu.org/archive/html/qemu-stable/2013-03/msg00037.html Juergen ___ freebsd-virtualization@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to "freebsd-virtualization-unsubscr...@freebsd.org" Lol, yeah, I was gonna say...but thanks! Not sure if I'm into implementing a patch vs. finding a way around this, and I'm wondering why it reared it's head after an update to libvirt & qemu vs. earlier in my testing -- makes me think it may be an unrelated, albeit similar bug. Thanks again Juergen. -- Andre Goree -=-=-=-=-=- Email - andre at drenet.net Website - http://www.drenet.net PGP key - http://www.drenet.net/pubkey.txt -=-=-=-=-=- ___ freebsd-virtualization@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to "freebsd-virtualization-unsubscr...@freebsd.org"
Problems with bhyve's kgdb support and loadable modules
Is there any reasonable tutorial for using kgdb with the bvmdebug kernel option? A couple of folks I know have run into issues trying to debug a FreeBSD stable/9 kernel from their bhyve hosting machine (running stable/10). In particular, the loadable modules that are in use in the stable/9 kernel are being "troublesome" to get to the point where source-level debugging actually works. Even a pointer to a couple of "worked" examples might be useful. I've read this: http://people.freebsd.org/~jhb/papers/bsdcan/2008/article/node4.html but not all the techniques in there appear to work properly. -Kurt ___ freebsd-virtualization@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to "freebsd-virtualization-unsubscr...@freebsd.org"
Re: Kernel Panic on FreeBSD guests with libvirt 1.2.2 and qemu 1.7.91
In article <201405021800.s42i0tie094...@enceladus10.kn-bremen.de> you write: >In article > you >write: >>On 05/01/2014 11:00 am, Andre Goree wrote: >>> Hello, >>> >>> I'm running libvirt 1.2.2 and QEMU 1.7.91 on an Ubuntu 12.04LTS host. >>> Prior to a recent upgrade, I've been able to run FreeBSD guests (both >>> 10.0 and 9.2) perfectly fine without issue. Now, this the >>> aforementioned versions, I'm running into a kernel panic almost >>> immediately after booting, same message with both 10.0 & 9.2: "Fatal >>> trap 12: page fault while in kernel mode". >>> >>> To ensure that it had nothing to do with my configuration [of the >>> guest OS] I've tried installing the guest from guest using >>> virt-install, however I still run into the same kernel panic. It'll >>> be hard for me to post the output of the panic, so I'll try to show as >>> much info as possible via images[1]. >>> >>> Upon researching, I've come across a few threads (e.g., this one[2]) >>> that appear to be related, but none have helped. Any information that >>> you can provide to help me get to the root of this issue would be >>> greatly appreciated! >>> >>> [1]http://www.drenet.net/images/panic1.png >>> http://www.drenet.net/images/panic2.png >>> http://www.drenet.net/images/panic_noacpi1.png >>> http://www.drenet.net/images/panic_noacpi2.png >>> >>> [2]http://forums.freebsd.org/viewtopic.php?t=36761 >> >> >>After using my noggin a bit, I've determine the culprit to be atkbd. If >>I disable it via the bootloader with "set hint.atkbd.0.disabled=1", the >>vm will boot fine. HOWEVER, my problem then is that I cannot use the >>keyboard via VNC. I'm trying to figure out ways around this...any help >>would be much appreciated. I've already tried setting different flags >>for atkbd, but no matter which flag I set, I get the kernel panic -- >>ostensibly because atkbd is enabled (as it must be for a flag to be set >>for it). >> >I think you have hit this issue for which the workaround is a patch >to seabios: > > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug > Hm for some reason that link got truncated, try this one: https://bugs.debian.org/737142 > > http://git.qemu.org/?p=seabios.git;a=commit;h=8032b8a0fec550de5cb2f7d37aa031cebc2200c3 > > References: > > http://article.gmane.org/gmane.comp.emulators.qemu/254414/ > > https://lists.gnu.org/archive/html/qemu-stable/2013-03/msg00037.html > Juergen ___ freebsd-virtualization@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to "freebsd-virtualization-unsubscr...@freebsd.org"
Re: Kernel Panic on FreeBSD guests with libvirt 1.2.2 and qemu 1.7.91
In article you write: >On 05/01/2014 11:00 am, Andre Goree wrote: >> Hello, >> >> I'm running libvirt 1.2.2 and QEMU 1.7.91 on an Ubuntu 12.04LTS host. >> Prior to a recent upgrade, I've been able to run FreeBSD guests (both >> 10.0 and 9.2) perfectly fine without issue. Now, this the >> aforementioned versions, I'm running into a kernel panic almost >> immediately after booting, same message with both 10.0 & 9.2: "Fatal >> trap 12: page fault while in kernel mode". >> >> To ensure that it had nothing to do with my configuration [of the >> guest OS] I've tried installing the guest from guest using >> virt-install, however I still run into the same kernel panic. It'll >> be hard for me to post the output of the panic, so I'll try to show as >> much info as possible via images[1]. >> >> Upon researching, I've come across a few threads (e.g., this one[2]) >> that appear to be related, but none have helped. Any information that >> you can provide to help me get to the root of this issue would be >> greatly appreciated! >> >> [1]http://www.drenet.net/images/panic1.png >> http://www.drenet.net/images/panic2.png >> http://www.drenet.net/images/panic_noacpi1.png >> http://www.drenet.net/images/panic_noacpi2.png >> >> [2]http://forums.freebsd.org/viewtopic.php?t=36761 > > >After using my noggin a bit, I've determine the culprit to be atkbd. If >I disable it via the bootloader with "set hint.atkbd.0.disabled=1", the >vm will boot fine. HOWEVER, my problem then is that I cannot use the >keyboard via VNC. I'm trying to figure out ways around this...any help >would be much appreciated. I've already tried setting different flags >for atkbd, but no matter which flag I set, I get the kernel panic -- >ostensibly because atkbd is enabled (as it must be for a flag to be set >for it). > I think you have hit this issue for which the workaround is a patch to seabios: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug http://git.qemu.org/?p=seabios.git;a=commit;h=8032b8a0fec550de5cb2f7d37aa031cebc2200c3 References: http://article.gmane.org/gmane.comp.emulators.qemu/254414/ https://lists.gnu.org/archive/html/qemu-stable/2013-03/msg00037.html HTH, :) Juergen ___ freebsd-virtualization@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to "freebsd-virtualization-unsubscr...@freebsd.org"
