http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=200
Summary: Memory ballooning is broken under PAE
Product: Xen
Version: unstable
Platform: All
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Hypervisor
AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
ReportedBy: jyoung5@xxxxxxxxxx
I have a dual Opteron (IBM intellistation) with 6gigs ram. When running PAE
enabled Xen ballooning memory will crash the entire system. Xm does not current
support ballooning under PAE, but you can do it from the command line. Here I am
trying to balloon dom0 down to 512mb:
[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).
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