Hi all,
When running the test box with stable kernel(3.10.45), I eject a acpi container
(with two movable node,60 cpus, 64G memory) via the sysfs interface:
echo 1 > /sys/bus/acpi/devices/ACPI0004\:01/eject, but it hanged forever
after offlined all the memory and cpus, more specifically, after print out
"[58488.558000] ACPI: Device does not support D3cold".[1]
I try to trigger "kdump"(via nmi) to gain some info, but it does not work.
The dmesg output(gained via netconsole after "echo 1 > ..eject")config
are attached.

I also try the latest kernel, but the eject container seems failed. Nothing
happened when echo 1 to /sys/bus/acpi/devices/ACPI0004\:01/eject.

Any guys ran into similar problem? And any comments are welcome.
If you want more info that I can offer, just say it.

Thanks,
Gu

[1]dmesg output after "echo 1 > /sys/bus/acpi/devices/ACPI0004\:01/eject"
[58452.924000] Offlined Pages 32768
<...>
[58466.191000] Offlined Pages 32768
[58466.239000] Built 4 zonelists in Node order, mobility grouping on.  Total pages: 24605292
[58466.337000] Policy zone: Normal
[58466.715000] Offlined Pages 32768
<...>
[58479.468000] Offlined Pages 32768
[58479.514000] Built 4 zonelists in Node order, mobility grouping on.  Total pages: 16216685
[58479.612000] Policy zone: Normal
[58480.067000] smpboot: CPU 30 is now offline
[58480.140000] smpboot: CPU 90 is now offline
[58480.273000] smpboot: CPU 31 is now offline
[58480.346000] smpboot: CPU 91 is now offline
[58480.477000] smpboot: CPU 32 is now offline
[58480.550000] smpboot: CPU 92 is now offline
[58480.681000] smpboot: CPU 33 is now offline
[58480.753000] smpboot: CPU 93 is now offline
[58480.884000] smpboot: CPU 34 is now offline
[58480.957000] smpboot: CPU 94 is now offline
[58481.090000] smpboot: CPU 35 is now offline
[58481.162000] smpboot: CPU 95 is now offline
[58481.295000] smpboot: CPU 36 is now offline
[58481.367000] smpboot: CPU 96 is now offline
[58481.500000] smpboot: CPU 37 is now offline
[58481.572000] smpboot: CPU 97 is now offline
[58481.705000] smpboot: CPU 38 is now offline
[58481.776000] smpboot: CPU 98 is now offline
[58481.905000] smpboot: CPU 39 is now offline
[58481.975000] smpboot: CPU 99 is now offline
[58482.108000] smpboot: CPU 40 is now offline
[58482.178000] smpboot: CPU 100 is now offline
[58482.308000] smpboot: CPU 41 is now offline
[58482.378000] smpboot: CPU 101 is now offline
[58482.533000] smpboot: CPU 42 is now offline
[58482.602000] smpboot: CPU 102 is now offline
[58482.735000] smpboot: CPU 43 is now offline
[58482.803000] smpboot: CPU 103 is now offline
[58482.933000] smpboot: CPU 44 is now offline
[58483.000000] Broke affinity for irq 4
[58483.045000] smpboot: CPU 104 is now offline
[58483.117000] smpboot: CPU 45 is now offline
[58483.182000] smpboot: CPU 105 is now offline
[58483.251000] smpboot: CPU 46 is now offline
[58483.316000] smpboot: CPU 106 is now offline
[58483.384000] smpboot: CPU 47 is now offline
[58483.448000] smpboot: CPU 107 is now offline
[58483.515000] smpboot: CPU 48 is now offline
[58483.578000] smpboot: CPU 108 is now offline
[58483.642000] smpboot: CPU 49 is now offline
[58483.704000] smpboot: CPU 109 is now offline
[58483.769000] smpboot: CPU 50 is now offline
[58483.830000] smpboot: CPU 110 is now offline
[58483.894000] smpboot: CPU 51 is now offline
[58483.954000] smpboot: CPU 111 is now offline
[58484.016000] smpboot: CPU 52 is now offline
[58484.076000] smpboot: CPU 112 is now offline
[58484.138000] smpboot: CPU 53 is now offline
[58484.198000] smpboot: CPU 113 is now offline
[58484.260000] smpboot: CPU 54 is now offline
[58484.320000] smpboot: CPU 114 is now offline
[58484.382000] smpboot: CPU 55 is now offline
[58484.441000] smpboot: CPU 115 is now offline
[58484.502000] smpboot: CPU 56 is now offline
[58484.561000] smpboot: CPU 116 is now offline
[58484.623000] smpboot: CPU 57 is now offline
[58484.681000] smpboot: CPU 117 is now offline
[58484.745000] smpboot: CPU 58 is now offline
[58484.803000] smpboot: CPU 118 is now offline
[58484.863000] smpboot: CPU 59 is now offline
[58484.919000] Broke affinity for irq 3
[58484.963000] smpboot: CPU 119 is now offline
[58485.017000] ACPI: Device does not support D3cold
[58485.073000] ACPI: Device does not support D3cold
[58485.128000] ACPI: Device does not support D3cold
[58485.183000] ACPI: Device does not support D3cold
[58485.238000] ACPI: Device does not support D3cold
[58485.294000] ACPI: Device does not support D3cold
[58485.349000] ACPI: Device does not support D3cold
[58485.404000] ACPI: Device does not support D3cold
[58485.460000] ACPI: Device does not support D3cold
[58485.515000] ACPI: Device does not support D3cold
[58485.570000] ACPI: Device does not support D3cold
[58485.626000] ACPI: Device does not support D3cold
[58485.681000] ACPI: Device does not support D3cold
[58485.736000] ACPI: Device does not support D3cold
[58485.792000] ACPI: Device does not support D3cold
[58485.847000] ACPI: Device does not support D3cold
[58485.902000] ACPI: Device does not support D3cold
[58485.958000] ACPI: Device does not support D3cold
[58486.013000] ACPI: Device does not support D3cold
[58486.068000] ACPI: Device does not support D3cold
[58486.124000] ACPI: Device does not support D3cold
[58486.179000] ACPI: Device does not support D3cold
[58486.234000] ACPI: Device does not support D3cold
[58486.290000] ACPI: Device does not support D3cold
[58486.345000] ACPI: Device does not support D3cold
[58486.400000] ACPI: Device does not support D3cold
[58486.456000] ACPI: Device does not support D3cold
[58486.511000] ACPI: Device does not support D3cold
[58486.566000] ACPI: Device does not support D3cold
[58486.622000] ACPI: Device does not support D3cold
[58486.677000] ACPI: Device does not support D3cold
[58486.732000] ACPI: Device does not support D3cold
[58486.787000] ACPI: Device does not support D3cold
[58486.843000] ACPI: Device does not support D3cold
[58486.898000] ACPI: Device does not support D3cold
[58486.953000] ACPI: Device does not support D3cold
[58487.009000] ACPI: Device does not support D3cold
[58487.064000] ACPI: Device does not support D3cold
[58487.119000] ACPI: Device does not support D3cold
[58487.175000] ACPI: Device does not support D3cold
[58487.230000] ACPI: Device does not support D3cold
[58487.285000] ACPI: Device does not support D3cold
[58487.341000] ACPI: Device does not support D3cold
[58487.396000] ACPI: Device does not support D3cold
[58487.451000] ACPI: Device does not support D3cold
[58487.507000] ACPI: Device does not support D3cold
[58487.562000] ACPI: Device does not support D3cold
[58487.617000] ACPI: Device does not support D3cold
[58487.673000] ACPI: Device does not support D3cold
[58487.728000] ACPI: Device does not support D3cold
[58487.783000] ACPI: Device does not support D3cold
[58487.839000] ACPI: Device does not support D3cold
[58487.894000] ACPI: Device does not support D3cold
[58487.949000] ACPI: Device does not support D3cold
[58488.005000] ACPI: Device does not support D3cold
[58488.060000] ACPI: Device does not support D3cold
[58488.115000] ACPI: Device does not support D3cold
[58488.170000] ACPI: Device does not support D3cold
[58488.226000] ACPI: Device does not support D3cold
[58488.281000] ACPI: Device does not support D3cold
[58488.336000] ACPI: Device does not support D3cold
[58488.392000] ACPI: Device does not support D3cold
[58488.447000] ACPI: Device does not support D3cold
[58488.502000] ACPI: Device does not support D3cold
[58488.558000] ACPI: Device does not support D3cold
--->Hanged here forever...