| --- | Log | opened Tue Feb 05 00:00:48 2008 |
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| 17:17 | <knewt> | hmm. i'm trying out the pvops domu. anyone got any idea why it might lock up whilst trying to install the xen timer? |
| 17:38 | <knewt> | ok, so there's some problem with UP pvops domU. building smp fixes that. now it just fails a xen pagetable multicall :/ |
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| 17:59 | <knewt> | right, i'm getting an -EINVAL returned from the update_va_mapping hypercall, triggered by xen_mc_flush during a move_page_tables. anyone got any ideas? |
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| 19:49 | <caker> | knewt: I haven't seen that one -- but I am able to cause a domU's CPU to block forever in iowait with this simple script: http://p.linode.com/255 |
| 19:49 | <caker> | knewt: if you get a chance, I'd appreciate someone else being able to reproducing it |
| 19:51 | <knewt> | caker: looking at my xen dmesg, i've just seen this msg: (XEN) mm.c:625:d34 Non-privileged (34) attempt to map I/O space 00000000 |
| 19:51 | <knewt> | the 34 appears to be the number of times i've tried this :) |
| 19:53 | <caker> | I think that's the domID |
| 19:54 | <caker> | looking at my xen hosts, I see that too, for domains *not* running a pv_ops kernel |
| 19:54 | <knewt> | ah |
| 19:54 | <knewt> | that would make sense, since each attempt will increase the guest domid |
| 19:56 | <knewt> | from a small bit of googling, the msg can sometimes be harmless. those times being when it has been triggered by userspace. this is kernel-triggered though, which is fatal :/ |
| 20:21 | <knewt> | YAAAAAAAY. got things working. the usual bloody problem that i've hit time and time again recently. non-pae not actually being tested |
| 20:26 | <caker> | knewt: awesome |
| 20:27 | <caker> | http://pastebin.linode.com/255 <-- give that a try in a pv_ops domU, if you have a chance , please :) |
| 20:44 | <knewt> | caker: sure, doing so now. what am i looking for? |
| 20:46 | <caker> | knewt: after a few passes, it'll lock up |
| 20:46 | <caker> | knewt: the CPU that thread was running on (if SMP domU) will be stuck in iowait |
| 21:05 | <knewt> | on 9th iteration so far with no worries |
| 21:06 | <knewt> | UP system, domU block devices iscsi end-points on the dom0 |
| 21:12 | <caker> | hmm |
| 21:12 | <caker> | my config is smp host, lvm backend |
| 21:13 | <caker> | which domU kernel are you trying? |
| 21:13 | <knewt> | the domU is also only 64 megs ram, so definitely hitting block, in case relevant |
| 21:15 | <knewt> | domU is 2.6.24 pvops, dom0 is 2.6.18.8 sparse, xen is 3.1.3-rc1-pre |
| 21:16 | <knewt> | 32 bit x86 |
| 21:16 | <caker> | all right .. thanks for the data point! |
| 21:16 | <knewt> | now on 14th iter |
| 21:16 | <caker> | yeah, it would have happened by now |
| 21:19 | <knewt> | time to run ltp, see how things look. although so far so good |
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| --- | Log | closed Tue Feb 05 22:59:13 2008 |
| --- | Log | opened Tue Feb 05 22:59:16 2008 |
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| --- | Log | closed Wed Feb 06 00:00:29 2008 |
