On Fri September 16 2011, 6:42:32 PM, jim burns wrote:
> On Fri September 16 2011, 4:06:30 PM, jim burns wrote:
> > OK, if your confident that these problems will go away in a production
> > kernel, especially the GPF error, I can wait. If you don't need
> > anything
> > else, I'll bring down the system, and retreat to 2.6.40 in a couple of
> > hours. Thanx for you attention.
>
> Sorry, I take it back. Just rebooted back into 2.6.40, and I'm still getting
> GPF errors - just not very frequently.
Yayyy! Fedora rawhide just came out with 3.1.0-0.rc7.git0.2.fc17. It boots up 
without any BUG:s. I assume your ' Alter the locking to be a mutex.' patch 
made it into rc7. It starts my winxp domu, w/512 MB, reasonably fast, for a 
rawhide kernel. 'time xm create' reports:
xm create winxp 0.21s user 0.48s system 3% cpu 17.738 total
This is a far cry from the 3-6 min. under rc6.
When I up the memory to 768 MB, 'xm create' does not hang, like in rc6, but 
does take longer to complete:
xm create winxp 0.18s user 0.64s system 0% cpu 2:48.65 total
Also, tmem (I'm guessing) is cooperating with dom0's 'free' a lot better. 
Starting up rc7, before starting any guests:
jimb@insp6400 09/23/11 11:07AM:~
[503] > free
 total used free shared buffers cached
Mem: 1797668 1702884 94784 0 82784 490104
-/+ buffers/cache: 1129996 667672
Swap: 4063228 0 4063228
After starting one 512 MB guest:
root@insp6400 09/23/11 11:23AM:~
[504] > free
 total used free shared buffers cached
Mem: 1387244 1352212 35032 0 23660 178560
-/+ buffers/cache: 1149992 237252
Swap: 4063228 104 4063124
After stopping the 512 MB guest, and starting a 768 MB guest:
root@insp6400 09/23/11 11:38AM:~
[510] > free 
 total used free shared buffers cached
Mem: 1073900 1058108 15792 0 2564 66488
-/+ buffers/cache: 989056 84844
Swap: 4063228 141368 3921860
However, on 3.1.0-0.rc6.git0.0.xendom0.fc17 (myoung's temp build), before any 
guests:
[506] > free
 total used free shared buffers cached
Mem: 1495104 1407388 87716 0 14780 116976
-/+ buffers/cache: 1275632 219472
Swap: 4063228 8508 4054720
which is 300 MB less than rc7. After starting up a 512 MB guest:
root@insp6400 09/23/11 1:17PM:/boot/grub
[510] > free 
 
 total used free shared buffers cached
Mem: 1084680 1000164 84516 0 2580 75724
-/+ buffers/cache: 921860 162820
Swap: 4063228 388032 3675196
which is still 300 MB less than rc7. In all cases, 'xm list' does report the 
correct amount of memory. I'm saying the cooperation with dom0's 'free' is 
better in rc7.
All in all, you're heading in the right direction. Thanx a lot.
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