Hi!
Excuse me for asking something somewhat off-topic: We are running some Xen PVMs
on SLES11 SP4, and I noticed from time to time what looks like a 64-bit
overflow in VBD_RSECT. I think I had addressed this issue once before with
support, but without success (memory may be wrong). I'd simply like to ask
whether anybody else sees the same problem, or knows the cause of the problem.
xentop - 10:32:07 Xen 4.4.4_02-32.1
9 domains: 2 running, 7 blocked, 0 paused, 0 crashed, 0 dying, 0 shutdown
Mem: 134207288k total, 107751836k used, 26455452k free CPUs: 24 @ 2665MHz
NAME STATE CPU(sec) CPU(%) MEM(k) MEM(%) MAXMEM(k) MAXMEM(%)
VCPUS NETS NETTX(k) NETRX(k) VBDS VBD_OO VBD_RD VBD_WR
VBD_RSECT VBD_WSECT SSID
Domain-0 -----r 441702 20.3 4059648 3.0 8388608 6.3
24 0 0 0 0 0 0 0
0 0 0
v01 --b--- 5779 12.5 16777216 12.5 16777216 12.5
3 3 183204 441060 10 0 1343768 866205
27299164 9512070 0
v02 --b--- 426057 5.0 16777216 12.5 16777216 12.5
2 3 1427421847 2596833032 12 0 180345597 94998020
18446744072887605425 2752684148 0
v03 --b--- 5563 5.0 16777216 12.5 16777216 12.5
2 3 172219 105166 10 0 142352 903116
2811633 9184274 0
v04 --b--- 507 0.2 1048576 0.8 4194304 3.1
2 3 171194 471196 2 0 38577 47512
668060 1022688 0
v05 --b--- 9573 5.0 16777216 12.5 16777216 12.5
2 3 189830790 357721748 8 0 1871939 1485228
395244125 36548370 0
v07 --b--- 9533 8.6 524288 0.4 1048576 0.8
2 3 186967 402317 2 0 101071 1491721
1631180 23201114 0
v08 -----r 267882 159.8 16777216 12.5 16777216 12.5
2 3 872784729 2056988805 20 0 27444416 37396958
18446744069588249289 509859372 0
v09 --b--- 183 0.1 16777216 12.5 16777216 12.5
2 3 121525 7206 12 0 1560 13181
132880 311216 0
While monitoring disk performance for cluster planning, it might be good to
know which VM is doing how much I/O. However with these numbers I can hardly
tell...
Regards,
Ulrich
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