I have an AMD system (A10-6800K on an ASUS F2A85-M) that completely hangs when I use HVM. I''ve tested this on XenServer 6.2 and also CentOS 6.4 Xen 4.2.2. Sometimes it happens when the domain is started, other times after 20 minutes or so. So it''s sort of random when exactly it happens, but eventually any HVM domain will freeze the entire system. The problem is I don''t exactly know how to debug such a problem. Since the system just freezes, there are no messages, error logs, or anything at all. Can anybody point me to some information on how I might obtain further information to debug this issue? Other random things I tried. It will freeze with both ioapic_ack=old and new. Also I tried running XenServer with the "safe" option and still the same thing. Also, PV domains run fine, and in general the system is very stable and memtest runs fine. Any help would be greatly appreciated. I put together this system with the sole purpose of running HVM domains, so I''m kinda bummed its hanging (I really don''t want to use KVM). Thanks, Darren _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
> I have an AMD system (A10-6800K on an ASUS F2A85-M) that completely hangs > when I use HVM. I''ve tested this on XenServer 6.2 and also CentOS 6.4 Xen > 4.2.2. Sometimes it happens when the domain is started, other times after > 20 minutes or so. So it''s sort of random when exactly it happens, but > eventually any HVM domain will freeze the entire system. > > The problem is I don''t exactly know how to debug such a problem. Since > the > system just freezes, there are no messages, error logs, or anything at > all. Can anybody point me to some information on how I might obtain > further information to debug this issue? > > Other random things I tried. It will freeze with both ioapic_ack=old and > new. Also I tried running XenServer with the "safe" option and still the > same thing. Also, PV domains run fine, and in general the system is very > stable and memtest runs fine. Any help would be greatly appreciated. I > put together this system with the sole purpose of running HVM domains, so > I''m kinda bummed its hanging (I really don''t want to use KVM). >Disable all power savings from DomU/BIOS; ie. run the CPU at full speed without frequency scaling Also did you ran CPU test that it is stable and won''t overheat? I could not think of anything else.> Thanks, > Darren > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xen.org > http://lists.xen.org/xen-users
Hi!> The problem is I don''t exactly know how to debug such a problem. > Since the system just freezes, there are no messages, error logs, or > anything at all. Can anybody point me to some information on how I > might obtain further information to debug this issue?Sometimes i have been successful getting additional info, or at least hints connecting serial console to a physical server (and also to the guests). And then letting kernel messages to show there (console login: is also helpful there). Connecting to serial console from within screen or similar program is also helpful while it could log what is seen for further inspection. Best regards, Imre
(Sorry for top posting) I have a system with exact same motherboard, but with A8 CPU. I had to upgrade kernel to 3.9 to make all weirdness go away. Fwiw On Aug 11, 2013 2:24 PM, "Darren Shepherd" <darren.s.shepherd@gmail.com> wrote:> I have an AMD system (A10-6800K on an ASUS F2A85-M) that completely hangs > when I use HVM. I''ve tested this on XenServer 6.2 and also CentOS 6.4 Xen > 4.2.2. Sometimes it happens when the domain is started, other times after > 20 minutes or so. So it''s sort of random when exactly it happens, but > eventually any HVM domain will freeze the entire system. > > The problem is I don''t exactly know how to debug such a problem. Since > the system just freezes, there are no messages, error logs, or anything at > all. Can anybody point me to some information on how I might obtain > further information to debug this issue? > > Other random things I tried. It will freeze with both ioapic_ack=old and > new. Also I tried running XenServer with the "safe" option and still the > same thing. Also, PV domains run fine, and in general the system is very > stable and memtest runs fine. Any help would be greatly appreciated. I > put together this system with the sole purpose of running HVM domains, so > I''m kinda bummed its hanging (I really don''t want to use KVM). > > Thanks, > Darren > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xen.org > http://lists.xen.org/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
Hello Darren, I have the same CPU as you, and an ASRock FM2A75 Pro4 motherboard. I had the same problems you described when I tried xen 4.2 or 4.3, but when I compiled the most recent development version of xen from source, I could boot HVM DomUs. Since I hadn''t compiled xen before, I found this howto useful, although you might need to adapt it for CentOS: http://wiki.xen.org/wiki/Comprehensive_Xen_Debian_Wheezy_PCI_Passthrough_Tutorial I''m curious whether the newest xen works for you, so please let me know. On Sun, Aug 11, 2013 at 8:20 PM, Darren Shepherd <darren.s.shepherd@gmail.com> wrote:> I have an AMD system (A10-6800K on an ASUS F2A85-M) that completely hangs > when I use HVM. I''ve tested this on XenServer 6.2 and also CentOS 6.4 Xen > 4.2.2. Sometimes it happens when the domain is started, other times after > 20 minutes or so. So it''s sort of random when exactly it happens, but > eventually any HVM domain will freeze the entire system. > > The problem is I don''t exactly know how to debug such a problem. Since the > system just freezes, there are no messages, error logs, or anything at all. > Can anybody point me to some information on how I might obtain further > information to debug this issue? > > Other random things I tried. It will freeze with both ioapic_ack=old and > new. Also I tried running XenServer with the "safe" option and still the > same thing. Also, PV domains run fine, and in general the system is very > stable and memtest runs fine. Any help would be greatly appreciated. I put > together this system with the sole purpose of running HVM domains, so I''m > kinda bummed its hanging (I really don''t want to use KVM). > > Thanks, > Darren > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xen.org > http://lists.xen.org/xen-users
Compiling and running Xen trunk worked. Typically I could get HVM to hang in less than 1 minute, but compiling and running trunk it ran for about a hour or so no problem. I then downloaded 4.3 and compiled that and it failed immediately again. So something since 4.3 has fixed this issue. Darren On Thu, Aug 15, 2013 at 9:08 AM, Gustav Sorenson <gu.sorenson@gmail.com>wrote:> Hello Darren, > > I have the same CPU as you, and an ASRock FM2A75 Pro4 motherboard. > I had the same problems you described when I tried xen 4.2 or 4.3, but > when I compiled the most recent development version of xen from > source, I could boot HVM DomUs. > Since I hadn''t compiled xen before, I found this howto useful, > although you might need to adapt it for CentOS: > > http://wiki.xen.org/wiki/Comprehensive_Xen_Debian_Wheezy_PCI_Passthrough_Tutorial > > I''m curious whether the newest xen works for you, so please let me know. > > On Sun, Aug 11, 2013 at 8:20 PM, Darren Shepherd > <darren.s.shepherd@gmail.com> wrote: > > I have an AMD system (A10-6800K on an ASUS F2A85-M) that completely hangs > > when I use HVM. I''ve tested this on XenServer 6.2 and also CentOS 6.4 > Xen > > 4.2.2. Sometimes it happens when the domain is started, other times > after > > 20 minutes or so. So it''s sort of random when exactly it happens, but > > eventually any HVM domain will freeze the entire system. > > > > The problem is I don''t exactly know how to debug such a problem. Since > the > > system just freezes, there are no messages, error logs, or anything at > all. > > Can anybody point me to some information on how I might obtain further > > information to debug this issue? > > > > Other random things I tried. It will freeze with both ioapic_ack=old and > > new. Also I tried running XenServer with the "safe" option and still the > > same thing. Also, PV domains run fine, and in general the system is very > > stable and memtest runs fine. Any help would be greatly appreciated. I > put > > together this system with the sole purpose of running HVM domains, so I''m > > kinda bummed its hanging (I really don''t want to use KVM). > > > > Thanks, > > Darren > > > > _______________________________________________ > > Xen-users mailing list > > Xen-users@lists.xen.org > > http://lists.xen.org/xen-users >_______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
On Aug 17, 2013, at 6:10 PM, Darren Shepherd <darren.s.shepherd@gmail.com> wrote:> Compiling and running Xen trunk worked. Typically I could get HVM to hang in less than 1 minute, but compiling and running trunk it ran for about a hour or so no problem. I then downloaded 4.3 and compiled that and it failed immediately again. So something since 4.3 has fixed this issue.Gustav, I''ve determined that it is the debug flag that has actually made the build work. Can you try on your system compiling Xen with "make debug=n". For me that fails. If you are on master then default is debug=y so builds from master work. Releases like 4.3 and 4.2 have debug=n as the default. Darren
Hello Darren, I''m sorry for the delay. I just checked out the latest git master (commit 8a7769b4453168e23e8935a85e9a875ef5117253) and was able to compile xen with debug=n (without stubdom, that gave me compile time errors), install it, and then use it to boot a HVM Win7 64bit DomU (which I had created with my old xen 4.4 unstable install, which had debug=y.) Maybe a commit that was made in the meantime has solved this? Could you give it a try? I also happen to have an Asus F2A55 - M LK2 board available to me right now, with an AMD A4-5300. If you (or anyone else) wants me to, I can try to do the same there. Thanks On Wed, Aug 21, 2013 at 1:55 AM, Darren Shepherd <darren.s.shepherd@gmail.com> wrote:> > On Aug 17, 2013, at 6:10 PM, Darren Shepherd <darren.s.shepherd@gmail.com> wrote: > >> Compiling and running Xen trunk worked. Typically I could get HVM to hang in less than 1 minute, but compiling and running trunk it ran for about a hour or so no problem. I then downloaded 4.3 and compiled that and it failed immediately again. So something since 4.3 has fixed this issue. > > Gustav, > > I''ve determined that it is the debug flag that has actually made the build work. Can you try on your system compiling Xen with "make debug=n". For me that fails. If you are on master then default is debug=y so builds from master work. Releases like 4.3 and 4.2 have debug=n as the default. > > Darren > >