[Bug 675363] New: Random lockups with kernel-xen. Possibly graphics related

bugzilla_noreply＠novell.com

26 Feb 2011 26 Feb '11

01:46

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c0 Summary: Random lockups with kernel-xen. Possibly graphics related Classification: openSUSE Product: openSUSE 11.4 Version: RC 1 Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: Xen AssignedTo: jdouglas@novell.com ReportedBy: jfunk@funktronics.ca QAContact: qa@suse.de Found By: --- Blocker: --- Created an attachment (id=416401) --> (http://bugzilla.novell.com/attachment.cgi?id=416401) Netconsole log containing Oops User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:2.0b11) Gecko/20110203 Firefox/4.0b11 I have been experiencing some random lockups when running Xen with Xorg in Dom0. I've been having this problem with 11.3 as well. Interestingly, as long as I'm not running X in Dom0, it's as stable as can be, but it crashes fairly often when I'm running X. More often than not, I'm scrolling a PDF when it locks up or reboots. When it locks up, sysctl keys do not work. I managed to capture the oops via netconsole. Sadly, syslog-ng has mangled it somewhat. Reproducible: Sometimes -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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28 Feb 28 Feb

15:44

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c Charles Arnold changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |carnold@novell.com AssignedTo|jdouglas@novell.com |jbeulich@novell.com QAContact|qa@suse.de |jdouglas@novell.com -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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16:19

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c1 Jan Beulich changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P5 - None |P3 - Medium Status|NEW |NEEDINFO Found By|--- |Community User InfoProvider| |jfunk@funktronics.ca --- Comment #1 from Jan Beulich 2011-02-28 16:19:44 UTC --- Please retry with RC2, and if the problem is still there, provide full hypervisor and kernel log. Additionally, please try whether adding "mem=4G" to the Xen command line makes the problem go away. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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1 Mar 1 Mar

00:15

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c2 --- Comment #2 from James Oakley 2011-03-01 00:15:29 UTC --- Created an attachment (id=416664) --> (http://bugzilla.novell.com/attachment.cgi?id=416664) Boot message log -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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00:15

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c3 --- Comment #3 from James Oakley 2011-03-01 00:15:54 UTC --- Created an attachment (id=416665) --> (http://bugzilla.novell.com/attachment.cgi?id=416665) Xen log -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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00:18

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c4 James Oakley changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #416401|0 |1 is obsolete| | Status|NEEDINFO |NEW InfoProvider|jfunk@funktronics.ca | --- Comment #4 from James Oakley 2011-03-01 00:18:41 UTC --- Created an attachment (id=416666) --> (http://bugzilla.novell.com/attachment.cgi?id=416666) Netconsole log with more history I updated to RC2, and set mem=4G. It still crashes fairly regularly. I have attached this log with more history, as well as the boot and xen logs. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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11:21

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c5 Jan Beulich changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |jfunk@funktronics.ca --- Comment #5 from Jan Beulich 2011-03-01 11:21:29 UTC --- (In reply to comment #3)

...

Created an attachment (id=416665) --> (http://bugzilla.novell.com/attachment.cgi?id=416665) [details] Xen log

This is the xend log, not the hypervisor one. If the system comes up, "xm dmesg" will give you what is needed. If it doesn't, your only option is using a serial console. You'll want to add "loglvl=all guest_loglvl=all" to the Xen command line in any case. (In reply to comment #2)

...

Created an attachment (id=416664) --> (http://bugzilla.novell.com/attachment.cgi?id=416664) [details] Boot message log

Please also provide a native kernel's boot messages for comparison. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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11:29

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c6 --- Comment #6 from Jan Beulich 2011-03-01 11:29:54 UTC --- (In reply to comment #4)

...

Created an attachment (id=416666) --> (http://bugzilla.novell.com/attachment.cgi?id=416666) [details] Netconsole log with more history

I updated to RC2, and set mem=4G.

Confusing: The oops message contains various pointers (e.g. the CR3 and RSP values) that indicate that Dom0 has more than 4G of memory, which implies that Xen must have more than 4G of memory too. The boot log in #2, however, shows that memory was restricted. Were the two taken from different boots (and did you perhaps leave off the mem=4G from the second)? Otherwise, only a single complete log will help understanding what else is going on here. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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13:06

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c7 --- Comment #7 from Jan Beulich 2011-03-01 13:06:56 UTC --- Created an attachment (id=416786) --> (http://bugzilla.novell.com/attachment.cgi?id=416786) potential fix This probably is just a wild guess, but seeing that drivers/gpu/drm/radeon/ can re-use virtual areas, it seems possible that you're being hit by a sticky _PAGE_IOMAP bit in one of the VMAs. Would you be able to build a test kernel for yourself with this patch included, or are you depending on us to hand you one? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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17:26

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c8 --- Comment #8 from James Oakley 2011-03-01 17:26:27 UTC --- (In reply to comment #6)

...

(In reply to comment #4)

...
Created an attachment (id=416666) --> (http://bugzilla.novell.com/attachment.cgi?id=416666) [details] [details] Netconsole log with more history

I updated to RC2, and set mem=4G.

Confusing: The oops message contains various pointers (e.g. the CR3 and RSP values) that indicate that Dom0 has more than 4G of memory, which implies that Xen must have more than 4G of memory too. The boot log in #2, however, shows that memory was restricted. Were the two taken from different boots (and did you perhaps leave off the mem=4G from the second)? Otherwise, only a single complete log will help understanding what else is going on here.

I restricted the log to that day, so there are multiple crashes in the netconsole log. Also, an Oops is not generated every time. Sometimes, it just suddenly restarts. I'm building a kernel with the patch you posted. Hopefully that will work out. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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2 Mar 2 Mar

01:00

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c9 James Oakley changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW InfoProvider|jfunk@funktronics.ca | --- Comment #9 from James Oakley 2011-03-02 01:00:06 UTC --- I just went a whole day without crashes, instead of 2-4 per day. I think you nailed it. Thanks. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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07:42

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c Jan Beulich changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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3 Mar 3 Mar

00:01

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c10 --- Comment #10 from James Oakley 2011-03-03 00:01:19 UTC --- It appears that I have spoke too soon. I rebooted this morning to get my RAM back, and after a few hours, it crashed again, and I forgot to get netconsole back up. I just booted with mem=4G, and will see how it goes. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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00:46

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c11 James Oakley changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #416664|0 |1 is obsolete| | --- Comment #11 from James Oakley 2011-03-03 00:46:45 UTC --- Created an attachment (id=417228) --> (http://bugzilla.novell.com/attachment.cgi?id=417228) dmesg -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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00:47

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c12 --- Comment #12 from James Oakley 2011-03-03 00:47:15 UTC --- Created an attachment (id=417229) --> (http://bugzilla.novell.com/attachment.cgi?id=417229) dmesg from kernel-desktop -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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00:47

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c13 James Oakley changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #416665|0 |1 is obsolete| | --- Comment #13 from James Oakley 2011-03-03 00:47:45 UTC --- Created an attachment (id=417230) --> (http://bugzilla.novell.com/attachment.cgi?id=417230) xm dmesg -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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00:49

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c14 James Oakley changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #416666|0 |1 is obsolete| | --- Comment #14 from James Oakley 2011-03-03 00:49:49 UTC --- Created an attachment (id=417231) --> (http://bugzilla.novell.com/attachment.cgi?id=417231) netconsole So it crashed pretty quickly this time, and there's no Oops in the netconsole log, sadly. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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08:48

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c15 Jan Beulich changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEEDINFO InfoProvider| |jfunk@funktronics.ca --- Comment #15 from Jan Beulich 2011-03-03 08:48:10 UTC --- I guess you meant 'hung' rather than 'crashed'? With no oops and the kernel hung, the only way to get necessary information out of the system is a serial console, which I understand you still have not set up. Of course, seeing the Xen message(s) associated with the oops you observed without mem=4G may still provide useful insight. One further thing to try would be "modeset=0" added to radeon.ko's load options. But your system is having other problems: (XEN) [VT-D]iommu.c:1143: IOMMU: unsupported and (XEN) CPU0: Temperature above threshold (repeated for various CPUs). You may first need to get at least the latter under control. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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21:10

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c16 James Oakley changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #417228|0 |1 is obsolete| | Attachment #417229|0 |1 is obsolete| | Attachment #417230|0 |1 is obsolete| | Attachment #417231|0 |1 is obsolete| | Status|NEEDINFO |ASSIGNED InfoProvider|jfunk@funktronics.ca | --- Comment #16 from James Oakley 2011-03-03 21:10:05 UTC --- Created an attachment (id=417444) --> (http://bugzilla.novell.com/attachment.cgi?id=417444) Serial console log Ok, I found a serial header on the motherboard and wired it up. I now have the *real* Oops. Lesson learned: don't rely on netconsole with Xen. As for the IOMMU message, the CPU doesn't have VT-D support. And temperature... Well, it's hard to keep cool in a 2U case I guess. I have 9 other boxes with the exact same components running Xen on 11.3 without issue, but they're not using the GPU, and only have SSDs installed... Maybe I should invest in an aftermarket cooler. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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4 Mar 4 Mar

14:44

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c17 --- Comment #17 from Jan Beulich 2011-03-04 14:44:49 UTC --- The hypervisor is simply out of memory - normally it doesn't need any at normal runtime (i.e. when not creating domains and alike), but in the specific case of Dom0 (or a guest) establishing virtual mappings with non-WB cachability, it may have to split large pages, which requires memory for setting up a page table. Try booting with dom0_mem= with a value sufficiently much lower than what is in the box; you can also specify a negative size, which will be taken as "this much to remain in Xen" (the default being -128M on boxes like yours, so dom0_mem=-256M may already get you past your issue). That said, it nevertheless shouldn't be the hypervisor to crash here (but the kernel), and I'll go and fix that aspect of the problem. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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9 Mar 9 Mar

17:52

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c18 --- Comment #18 from James Oakley 2011-03-09 17:52:50 UTC --- So I tried dom0_mem=-256M and it crashed immediately while starting the one domU I had set up during boot. I bumped it to -1024M and it's been perfect ever since. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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23 Mar 23 Mar

20:06

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c19 --- Comment #19 from Charles Arnold 2011-03-23 20:06:02 UTC --- A debug kernel may be downloaded from, ftp://ftp.novell.com/forge/XenTechnicalPreview/openSUSE/11.4/debug/675363/ -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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24 Mar 24 Mar

09:18

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c20 Jan Beulich changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEEDINFO InfoProvider| |carnold@novell.com --- Comment #20 from Jan Beulich 2011-03-24 09:18:49 UTC --- He'll also need yesterday's hypervisor. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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13:26

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c21 Charles Arnold changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |ASSIGNED InfoProvider|carnold@novell.com | --- Comment #21 from Charles Arnold 2011-03-24 13:26:46 UTC --- (In reply to comment #20)

...

He'll also need yesterday's hypervisor.

I've also uploaded the hypervisor and xen-libs and xen-tools to the same location specified in comment #19. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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14:03

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c22 Jan Beulich changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEEDINFO InfoProvider| |jfunk@funktronics.ca --- Comment #22 from Jan Beulich 2011-03-24 14:03:24 UTC --- Could you then please test with all the debugging bits above installed? The hypervisor crash should be gone with this, and the intended (but apparently not used) code path in the kernel also won't crash anymore (not that it did before, but it could have). Unfortunately I can't predict how much (or little) output the extra printk()-s added to the kernel will cause, so likely it would be better to run with netconsole (or with both), provided it doesn't clutter the output too much. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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8 Apr 8 Apr

02:21

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c23 James Oakley changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |ASSIGNED InfoProvider|jfunk@funktronics.ca | --- Comment #23 from James Oakley 2011-04-08 02:21:19 UTC --- Created an attachment (id=423864) --> (http://bugzilla.novell.com/attachment.cgi?id=423864) Ooops part of serial log Since the provided kernel, it's been running smoothly, but I just got this when I attempted to switch to it using a KVM switch. (I switch it several times per day) I just included the Oops part with a few of the earlier lines to provide some context. The "used as IOMEM" lines were constantly printed, and the full log is 542M as a result. If you need me to extract any other parts, let me know. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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14:19

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c24 Jan Beulich changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEEDINFO InfoProvider| |jfunk@funktronics.ca --- Comment #24 from Jan Beulich 2011-04-08 14:19:20 UTC --- The oops here can at best be a secondary effect; I can't see how it will help us further. If you could filter out the "PFN ... used as IOMEM" messages (apart from perhaps the first few ones and, as you already did, the last few ones; similarly for any "RAM ... used as IOMEM" ones), I would really want to see the remaining full log file so that I have some basis for trying to improve the debugging patch. In any case, those messages tell us there's something fishy going on. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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14:21

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c25 --- Comment #25 from Jan Beulich 2011-04-08 14:21:45 UTC --- (In reply to comment #24)

...

In any case, those messages tell us there's something fishy going on.

And your graphics worked fine nevertheless? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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14:27

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c26 --- Comment #26 from Jan Beulich 2011-04-08 14:27:49 UTC --- (In reply to comment #24)

...

If you could filter out the "PFN ... used as IOMEM" messages (apart from perhaps the first few ones and, as you already did, the last few ones; similarly for any "RAM ... used as IOMEM" ones), ...

...

From the fragment you supplied it would seem that these messages may repeat for a small set of numbers over and over - can you check that's really the case? That might provide further insight as to where these mappings are coming from (and might be a reason why, for quite a while, things seem to be working for you).

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14:33

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c27 --- Comment #27 from Jan Beulich 2011-04-08 14:33:03 UTC --- One more thing worth trying would be using the debug hypervisor (xen-dbg.gz) rather than the non-debug one. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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15:11

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c28 --- Comment #28 from Jan Beulich 2011-04-08 15:11:51 UTC --- Yet one more thing: Try using dom0_mem=3G on the Xen command line - that should get most of these messages out of the way (as it will remove the ambiguity of frame numbers within the device memory of your video card). Then make sure your guest(s) consume most/all of the remaining memory (as we're really after locating the root of the call tree that drove Xen out of memory earlier). -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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18:11

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c29 James Oakley changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |ASSIGNED InfoProvider|jfunk@funktronics.ca | --- Comment #29 from James Oakley 2011-04-08 18:11:00 UTC --- Created an attachment (id=424067) --> (http://bugzilla.novell.com/attachment.cgi?id=424067) serial console log Ok, I booted with dom0_mem=3G, and increased the memory of the domU to consume most of it. Thankfully, it didn't take too long. I really hope this provides enough information. This is a work system and today is my last day so I won't be able to do much testing. :-) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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12 Apr 12 Apr

09:33

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c30 Jan Beulich changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEEDINFO InfoProvider| |jfunk@funktronics.ca --- Comment #30 from Jan Beulich 2011-04-12 09:32:59 UTC --- (In reply to comment #29) There are way too few kernel messages in there - did you change your kernel log level? Without those messages being complete we cannot be sure that none of the debugging printk()-s ever triggered, and hence this run only tells us that (as expected) what used to be a hypervisor crash now is a kernel one. Adding "ignore_loglevel" to the kernel (not Xen) command line generally is a good idea if you're not certain about your kernel log level setting (or don't want to modify it globally).

...

I really hope this provides enough information. This is a work system and today is my last day so I won't be able to do much testing. :-)

Does this mean we won't be able to make any progress here anymore? If so, could you at least still provide full hardware details (namely /proc/cpuinfo contents and "lspci -nn" output)? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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13 Apr 13 Apr

19:49

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c31 James Oakley changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |ASSIGNED InfoProvider|jfunk@funktronics.ca | --- Comment #31 from James Oakley 2011-04-13 19:49:56 UTC --- Created an attachment (id=424794) --> (http://bugzilla.novell.com/attachment.cgi?id=424794) Full serial log, with "used as IOMEM?" messages filtered. The full log file is 541M, which is a bit large. I filtered out the "used as IOMEM?" messages to get it down to a more reasonable size. I can throw the full log on a server and send a URL if you want it. It will take a while for me to upload it as I am on a cable modem. I asked an old coworker for the cpuinfo and lspci output. I'll attach them in a moment. Sadly, I won't be able to test this anymore on this specific hardware. I am using a similar setup now, but without a discrete video card so I might be able to reproduce if it's not specific to the ATI. However, I am running into another bug with the loop driver that's keeping me from successfully installing a domU. I will report that separately. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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19:50

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c32 --- Comment #32 from James Oakley 2011-04-13 19:50:29 UTC --- Created an attachment (id=424795) --> (http://bugzilla.novell.com/attachment.cgi?id=424795) /proc/cpuinfo -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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19:50

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c33 --- Comment #33 from James Oakley 2011-04-13 19:50:55 UTC --- Created an attachment (id=424796) --> (http://bugzilla.novell.com/attachment.cgi?id=424796) lspci -nn -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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14 Apr 14 Apr

08:23

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c34 Jan Beulich changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEEDINFO InfoProvider| |pmillett@novell.com --- Comment #34 from Jan Beulich 2011-04-14 08:23:37 UTC --- (In reply to comment #31)

...

Created an attachment (id=424794) --> (http://bugzilla.novell.com/attachment.cgi?id=424794) [details] Full serial log, with "used as IOMEM?" messages filtered.

Unfortunately the log is incomplete (and thus at best of limited use) - the output rate is too high, so the serial console dropped characters. This would need to be redone with "sync_console" added to the Xen command line. Also, as indicated earlier, you will need to get under control the cooling problem of that system (which at once would further limit the amount of output). But let's first see whether we can locate a machine similar to yours (particularly wrt graphics) in our lab, and see whether this is reproducible. Preston, can you please do that? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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18 Apr 18 Apr

16:25

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c36 Preston Millett changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |ASSIGNED InfoProvider|pmillett@novell.com | --- Comment #36 from Preston Millett 2011-04-18 16:25:32 UTC --- I haven't been able to reproduce this issue on as similar hardware as we have in our lab. The closest thing I have been able to find to test this on is an ATI ES1000 which is an integrated graphics card. We don't have any systems that are using an ATI Radeon graphics card. Have you been able to reproduce this issue on other machines using a different graphics card? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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26 Apr 26 Apr

10:12

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c Jan Beulich changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEEDINFO InfoProvider| |jfunk@funktronics.ca -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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31 May 31 May

16:54

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c37 Swamp Workflow Management changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard| |maint:released:11.3:40798 --- Comment #37 from Swamp Workflow Management 2011-05-31 16:54:44 UTC --- Update released for: vm-install, xen, xen-debuginfo, xen-debugsource, xen-devel, xen-doc-html, xen-doc-pdf, xen-kmp-debug, xen-kmp-default, xen-kmp-default-debuginfo, xen-kmp-desktop, xen-kmp-desktop-debuginfo, xen-kmp-pae, xen-kmp-pae-debuginfo, xen-kmp-trace, xen-kmp-vmi, xen-libs, xen-libs-debuginfo, xen-tools, xen-tools-debuginfo, xen-tools-domU, xen-tools-domU-debuginfo Products: openSUSE 11.3 (debug, i586, x86_64) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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16:55

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c38 Swamp Workflow Management changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|maint:released:11.3:40798 |maint:released:11.4:40799 --- Comment #38 from Swamp Workflow Management 2011-05-31 16:55:19 UTC --- Update released for: vm-install, xen, xen-debuginfo, xen-debugsource, xen-devel, xen-doc-html, xen-doc-pdf, xen-kmp-debug, xen-kmp-default, xen-kmp-default-debuginfo, xen-kmp-desktop, xen-kmp-desktop-debuginfo, xen-kmp-pae, xen-kmp-pae-debuginfo, xen-kmp-trace, xen-kmp-vmi, xen-libs, xen-libs-debuginfo, xen-tools, xen-tools-debuginfo, xen-tools-domU, xen-tools-domU-debuginfo Products: openSUSE 11.4 (debug, i586, x86_64) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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20:01

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c39 Swamp Workflow Management changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|maint:released:11.4:40799 |maint:released:11.4:40799 | |maint:released:sle11-sp1:40 | |493 --- Comment #39 from Swamp Workflow Management 2011-05-31 20:01:11 UTC --- Update released for: libvirt, libvirt-debuginfo, libvirt-debugsource, libvirt-devel, libvirt-doc, libvirt-python, vm-install, xen, xen-debuginfo, xen-debugsource, xen-devel, xen-doc-html, xen-doc-pdf, xen-kmp-debug, xen-kmp-default, xen-kmp-pae, xen-kmp-trace, xen-kmp-vmi, xen-libs, xen-tools, xen-tools-domU Products: SLE-DEBUGINFO 11-SP1 (i386, x86_64) SLE-DESKTOP 11-SP1 (i386, x86_64) SLE-SDK 11-SP1 (i386, x86_64) SLE-SERVER 11-SP1 (i386, x86_64) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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28 Jun 28 Jun

15:04

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c40 Swamp Workflow Management changed: What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|maint:released:11.4:40799 |maint:released:11.4:40799 |maint:released:sle11-sp1:40 |maint:released:sle11-sp1:40 |493 |493 | |maint:released:sle10-sp4:41 | |287 --- Comment #40 from Swamp Workflow Management 2011-06-28 15:04:48 UTC --- Update released for: xen, xen-debuginfo, xen-debugsource, xen-devel, xen-doc-html, xen-doc-pdf, xen-doc-ps, xen-kmp-bigsmp, xen-kmp-debug, xen-kmp-default, xen-kmp-kdump, xen-kmp-kdumppae, xen-kmp-pae, xen-kmp-smp, xen-kmp-trace, xen-kmp-vmi, xen-kmp-vmipae, xen-libs, xen-libs-32bit, xen-tools, xen-tools-domU, xen-tools-ioemu Products: SLE-DEBUGINFO 10-SP4 (i386, x86_64) SLE-DESKTOP 10-SP4 (i386, x86_64) SLE-SDK 10-SP4 (i386, x86_64) SLE-SERVER 10-SP4 (i386, x86_64) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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6 Jul 6 Jul

08:18

New subject: [Bug 675363] Random lockups with kernel-xen. Possibly graphics related

https://bugzilla.novell.com/show_bug.cgi?id=675363 https://bugzilla.novell.com/show_bug.cgi?id=675363#c41 Jan Beulich changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |CLOSED InfoProvider|jfunk@funktronics.ca | Resolution| |NORESPONSE --- Comment #41 from Jan Beulich 2011-07-06 08:18:22 UTC --- Feel free to re-open if your ready to continue working on this with us. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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[Bug 675363] New: Random lockups with kernel-xen. Possibly graphics related

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