> Hmm.. I capped my Dom0 to 192M and 64M and it worked fine.  The only  
> reason that mempool_create() can fail is if an underlying kmalloc  
> failed, I don't think that we are trying to get so much memory.

> Hey! did you update Xen as well? because the number of pages was way  
> too large before.

Just pulled xen and linux trees before lunch, rebuilt everything,
including tools, tried again:
 a) with initrd-0.8.img worked ok
 b) with /dev/hdc2 got problems below:
 c) fsck /dev/hdc2 then reboot & tried again - everything worked fine!
    Built linux kernel in 12 min. Below is some log from vmstat 3:

Guest console:
netfront: Bad rx response id 256.
netfront: Bad rx response id 256.
netfront: Bad rx response id 256.
netfront: Bad rx response id 256.
netfront: Bad rx response id 256.
netfront: Bad rx response id 256.
netfront: Bad rx response id 256.
netfront: Bad rx response id 256.
netfront:lab082:~ # 
lab082:~ # 


Dom0 console:
Welcome to SUSE Linux Enterprise Server 10 (ppc) - Kernel 2.6.17-Xen (console).

lab082 login: (XEN) allocated RMA for Dom[1]: 0x1c000000[0x4000000]
(XEN) Domain[1].0: initializing
(XEN) allocated RMA for Dom[2]: 0x1c000000[0x4000000]
(XEN) Domain[2].0: initializing
(XEN) (file=grant_table.c, line=845) copy beyond page area.
(XEN) (file=grant_table.c, line=845) copy beyond page area.
(XEN) (file=grant_table.c, line=845) copy beyond page area.
(XEN) (file=grant_table.c, line=845) copy beyond page area.
(XEN) (file=grant_table.c, line=845) copy beyond page area.


vmstat 3 during kernel build:
procs -----------memory---------- ---swap-- -----io---- -system-- -----cpu------
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
 2  0      0  18704  32504  37696    0    0   129    88   18  121 41 10 44  5  0
 1  2      0  18156  33308  40272    0    0   125   501   44  182 58 22  0 21  0
 1  0      0   6740  33316  40524    0    0    23   192   42   80 80 14  0  6  0
 1  1      0   1796  34024  40596    0    0    31   963   44  109 82 14  0  5  0
 1  0      0  18352  32548  40512    0    0    33     0   14  219 75 20  0  5  0
 1  0      0   8800  33452  40648    0    0    21   667   62   93 59 18  0 23  0
 1  0      0   3320  33348  40752    0    0    25     0    6   82 85 14  0  1  0
 3  1      0   4128  28132  37908    0    0    49   397   35  149 85  9  0  7  0
 1  0      0  19664  28152  38148    0    0   177     0   14  249 78 17  0  5  0
 1  0      0  14328  28860  38480    0    0    36   417   35   92 82 16  0  3  0
 2  1      0  22612  29676  38964    0    0    37   144   10   90 84 14  0  1  0
 2  0      0  20352  29696  38944    0    0    19   467   46  240 73 20  0  7  0
 2  0      0  19700  30392  39288    0    0    17   464   43  223 75 22  0  3  0
 1  0      0  20484  30408  39272    0    0    16     0    7  245 77 22  0  1  0
 1  0      0   2488  31180  39800    0    0    43   383   21   99 73 18  0  8  0
 1  0      0  12812  29044  38036    0    0   428     0   28  152 82 13  0  5  0
 1  0      0   2116  29844  38276    0    0    40   553   44  141 76  8  0 17  0
 1  1      0  11592  28732  37828    0    0    27    57    6  129 87 12  0  2  0
 1  0      0   9632  28736  38084    0    0    17   459   38  184 78 17  0  6  0
 1  0      0  12032  29456  38144    0    0    28   457   43  157 74 17  0  9  0
 1  0      0   3464  29464  38396    0    0    49     0    4   60 89  9  0  2  0
procs -----------memory---------- ---swap-- -----io---- -system-- -----cpu------
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
 0  1      0  27244  26364  38116    0    0    51   432   41  214 73 15  0 12  0
 1  0      0  18076  26412  38588    0    0    60     0   13  141 78 18  0  4  0
 1  0      0  10332  27296  39004    0    0    56   617   48  151 63 17  0 20  0
 1  2      0  19276  28088  39252    0    0    41   589   12  162 82 15  0  3  0
 1  0      0  20172  28088  39252    0    0    12    11   41  178 88 10  0  2  0
 1  0      0  18100  28788  39592    0    0    28   529   44  252 82 17  0  1  0
 1  0      0   9168  28800  39580    0    0    20     0    4  192 85 14  0  1  0
 1  0      0  14960  29520  39900    0    0    17   528   46  223 74 18  0  8  0
 1  0      0   2116  29632  37188    0    0    44   572   18   64 92  8  0  0  0
 2  0      0  25344  29020  37280    0    0    35     0   35  157 79 16  0  5  0
procs -----------memory---------- ---swap-- -----io---- -system-- -----cpu------
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
 2  1      0  18620  27476  39084    0    0   126   105   19  124 44 10 41  5  0
 1  1      0  14100  27596  39484    0    0    71     0   26  146 77 23  0  1  0
 2  1      0  15680  28388  38952    0    0   261   665   75  140 80 15  0  5  0
 3  1      0  18580  28484  39896    0    0   145     0   18  204 77 22  0  1  0
 2  2      0   1544  26328  35812    0    0    95   769   61  119 82  9  0  9  0
 1  2      0  12304  27340  36620    0    0   355   573   32   94 73 11  0 16  0
 2  1      0  19344  25000  35580    0    0    96   237   58   80 90  8  0  2  0
 0  3      0  27276  25808  35552    0    0    59   563   53   79 82  8  0 10  0
 1  1      0  13088  25960  35920    0    0    92     0   28  119 70 21  0  8  0
 2  2      0  25648  26872  36308    0    0    64   659   69   98 70 10  0 20  0
 1  1      0  13692  27000  36960    0    0   169     0   23  276 74 20  0  6  0
 2  1      0  24064  27292  37968    0    0   168   547   70  265 70 14  0 16  0
 0  1      0  20736  28364  40536    0    0   177  1029   42  207 60 15  0 25  0
 1  2      0   1780  28608  40812    0    0   188   697   96  128 35 10  0 55  0
 2  1      0   8540  27056  39764    0    0    59   453   39  257 71 16  0 13  0
 1  1      0   9452  27180  39900    0    0    55     0   14  240 83 15  0  1  0
 2  1      0   7936  28168  39952    0    0    49   621   65  254 65 15  0 20  0
 2  1      0  12024  28288  40092    0    0    77     0   16  260 76 23  0  1  0
 2  1      0  11096  27168  37312    0    0   113   607   62  169 87 12  0  1  0
 1  2      0  10796  28152  37628    0    0    71    61   17  279 79 20  0  1  0
 2  1      0  11060  27536  36684    0    0   280   512   62  157 87 11  0  2  0

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