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[Xen-devel] x86_32 PAE ballooning is busted

To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] x86_32 PAE ballooning is busted
From: Jerone Young <jyoung5@xxxxxxxxxx>
Date: Tue, 23 Aug 2005 15:51:56 -0500
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I have an opteron with 6gig ram running X86-32 with Xen compiled with
PAE enabled. When I do the following to try to ballon down (as xm
ballooning is busted) I get the following:

[root@xen32p32bit ~]# echo $((512*1024*1024)) > /proc/xen/balloon
[root@xen32p32bit ~]# oom-killer: gfp_mask=0xd2
DMA per-cpu:
cpu 0 hot: low 62, high 186, batch 31
cpu 0 cold: low 0, high 62, batch 31
Normal per-cpu: empty
HighMem per-cpu:
cpu 0 hot: low 62, high 186, batch 31
cpu 0 cold: low 0, high 62, batch 31

Free pages:       22944kB (620kB HighMem)
Active:327 inactive:732 dirty:0 writeback:226 unstable:0 free:5736
slab:2181 ma2DMA free:22324kB min:3452kB low:4312kB high:5176kB
active:132kB inactive:112kB slowmem_reserve[]: 0 0 4721
Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB
present:0kB paolowmem_reserve[]: 0 0 37771
HighMem free:620kB min:512kB low:640kB high:768kB active:1176kB
inactive:2816kBolowmem_reserve[]: 0 0 0
DMA: 1*4kB 0*8kB 1*16kB 1*32kB 0*64kB 0*128kB 1*256kB 1*512kB 1*1024kB
0*2048kBBNormal: empty
HighMem: 17*4kB 3*8kB 1*16kB 2*32kB 1*64kB 1*128kB 1*256kB 0*512kB
0*1024kB 0*2BSwap cache: add 3712, delete 3261, find 0/2, race 0+0
Free swap  = 1037432kB
Total swap = 1052248kB
Out of Memory: Killed process 2393 (mDNSResponder).
oom-killer: gfp_mask=0x1d2
DMA per-cpu:
cpu 0 hot: low 62, high 186, batch 31
cpu 0 cold: low 0, high 62, batch 31
Normal per-cpu: empty
HighMem per-cpu:
cpu 0 hot: low 62, high 186, batch 31
cpu 0 cold: low 0, high 62, batch 31

Free pages:       22944kB (620kB HighMem)
Active:306 inactive:282 dirty:0 writeback:0 unstable:0 free:5736
slab:2151 mapp2DMA free:22324kB min:3452kB low:4312kB high:5176kB
active:132kB inactive:112kB slowmem_reserve[]: 0 0 4721
Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB
present:0kB paolowmem_reserve[]: 0 0 37771
HighMem free:620kB min:512kB low:640kB high:768kB active:1092kB
inactive:1016kBslowmem_reserve[]: 0 0 0
DMA: 1*4kB 0*8kB 1*16kB 1*32kB 0*64kB 0*128kB 1*256kB 1*512kB 1*1024kB
0*2048kBBNormal: empty
HighMem: 23*4kB 4*8kB 1*16kB 1*32kB 1*64kB 1*128kB 1*256kB 0*512kB
0*1024kB 0*2BSwap cache: add 3752, delete 3740, find 6/16, race 0+0
Free swap  = 1037432kB
Total swap = 1052248kB
Out of Memory: Killed process 2394 (mDNSResponder).
oom-killer: gfp_mask=0x1d2
DMA per-cpu:
cpu 0 hot: low 62, high 186, batch 31
cpu 0 cold: low 0, high 62, batch 31
Normal per-cpu: empty
HighMem per-cpu:
cpu 0 hot: low 62, high 186, batch 31
cpu 0 cold: low 0, high 62, batch 31

Free pages:       23068kB (744kB HighMem)
Active:271 inactive:285 dirty:0 writeback:0 unstable:0 free:5767
slab:2149 mapp5DMA free:22324kB min:3452kB low:4312kB high:5176kB
active:32kB inactive:120kB pslowmem_reserve[]: 0 0 4721
Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB
present:0kB paolowmem_reserve[]: 0 0 37771
HighMem free:744kB min:512kB low:640kB high:768kB active:1052kB
inactive:1020kBslowmem_reserve[]: 0 0 0
DMA: 1*4kB 0*8kB 1*16kB 1*32kB 0*64kB 0*128kB 1*256kB 1*512kB 1*1024kB
0*2048kBBNormal: empty
HighMem: 44*4kB 3*8kB 2*16kB 2*32kB 1*64kB 1*128kB 1*256kB 0*512kB
0*1024kB 0*2BSwap cache: add 3792, delete 3789, find 7/18, race 0+0
Free swap  = 1037856kB
Total swap = 1052248kB
Out of Memory: Killed process 2480 (sendmail).
oom-killer: gfp_mask=0x1d2
DMA per-cpu:
cpu 0 hot: low 62, high 186, batch 31
cpu 0 cold: low 0, high 62, batch 31
Normal per-cpu: empty
HighMem per-cpu:
cpu 0 hot: low 62, high 186, batch 31
cpu 0 cold: low 0, high 62, batch 31

Free pages:       23068kB (744kB HighMem)
Active:279 inactive:285 dirty:0 writeback:0 unstable:0 free:5767
slab:2148 mapp8DMA free:22324kB min:3452kB low:4312kB high:5176kB
active:32kB inactive:120kB pslowmem_reserve[]: 0 0 4721
Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB
present:0kB paolowmem_reserve[]: 0 0 37771
HighMem free:744kB min:512kB low:640kB high:768kB active:1084kB
inactive:1020kBslowmem_reserve[]: 0 0 0
DMA: 1*4kB 0*8kB 1*16kB 1*32kB 0*64kB 0*128kB 1*256kB 1*512kB 1*1024kB
0*2048kBBNormal: empty
HighMem: 44*4kB 3*8kB 2*16kB 2*32kB 1*64kB 1*128kB 1*256kB 0*512kB
0*1024kB 0*2BSwap cache: add 3800, delete 3789, find 7/19, race 0+0
Free swap  = 1038700kB
Total swap = 1052248kB
Out of Memory: Killed process 2528 (xfs).
oom-killer: gfp_mask=0xd2
DMA per-cpu:
cpu 0 hot: low 62, high 186, batch 31
cpu 0 cold: low 0, high 62, batch 31
Normal per-cpu: empty
HighMem per-cpu:
cpu 0 hot: low 62, high 186, batch 31
cpu 0 cold: low 0, high 62, batch 31

Free pages:       22820kB (496kB HighMem)
Active:274 inactive:261 dirty:0 writeback:0 unstable:0 free:5705
slab:2148 mapp2DMA free:22324kB min:3452kB low:4312kB high:5176kB
active:12kB inactive:24kB prolowmem_reserve[]: 0 0 4721
Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB
present:0kB paolowmem_reserve[]: 0 0 37771
HighMem free:496kB min:512kB low:640kB high:768kB active:1084kB
inactive:1020kBslowmem_reserve[]: 0 0 0
DMA: 1*4kB 0*8kB 1*16kB 1*32kB 0*64kB 0*128kB 1*256kB 1*512kB 1*1024kB
0*2048kBBNormal: empty
HighMem: 0*4kB 0*8kB 1*16kB 1*32kB 1*64kB 1*128kB 1*256kB 0*512kB
0*1024kB 0*20BSwap cache: add 3808, delete 3797, find 7/21, race 0+0
Free swap  = 1039448kB
Total swap = 1052248kB
Out of Memory: Killed process 2847 (python).


-- 
Jerone Young
IBM Linux Technology Center
jyoung5@xxxxxxxxxx
512-838-1157 (T/L: 678-1157)


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