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yaml --- r: 177791 b: refs/heads/master c: a695bc6 h: refs/heads/master i: 177789: 17145e4 177787: 46004ed 177783: a8c01e8 177775: 7fd0fcf 177759: 29e8592 177727: ab98d08 177663: b4eb24f v: v3
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Linus Torvalds
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Dec 17, 2009
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refs/heads/master: 6665398afafcb1c75d933c1452a9010644aba3e6 | ||
refs/heads/master: a695bc683609a2b815915e4cfcd93e4ccc0e2cae |
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What: /sys/devices/system/memory/soft_offline_page | ||
Date: Sep 2009 | ||
KernelVersion: 2.6.33 | ||
Contact: andi@firstfloor.org | ||
Description: | ||
Soft-offline the memory page containing the physical address | ||
written into this file. Input is a hex number specifying the | ||
physical address of the page. The kernel will then attempt | ||
to soft-offline it, by moving the contents elsewhere or | ||
dropping it if possible. The kernel will then be placed | ||
on the bad page list and never be reused. | ||
|
||
The offlining is done in kernel specific granuality. | ||
Normally it's the base page size of the kernel, but | ||
this might change. | ||
|
||
The page must be still accessible, not poisoned. The | ||
kernel will never kill anything for this, but rather | ||
fail the offline. Return value is the size of the | ||
number, or a error when the offlining failed. Reading | ||
the file is not allowed. | ||
|
||
What: /sys/devices/system/memory/hard_offline_page | ||
Date: Sep 2009 | ||
KernelVersion: 2.6.33 | ||
Contact: andi@firstfloor.org | ||
Description: | ||
Hard-offline the memory page containing the physical | ||
address written into this file. Input is a hex number | ||
specifying the physical address of the page. The | ||
kernel will then attempt to hard-offline the page, by | ||
trying to drop the page or killing any owner or | ||
triggering IO errors if needed. Note this may kill | ||
any processes owning the page. The kernel will avoid | ||
to access this page assuming it's poisoned by the | ||
hardware. | ||
|
||
The offlining is done in kernel specific granuality. | ||
Normally it's the base page size of the kernel, but | ||
this might change. | ||
|
||
Return value is the size of the number, or a error when | ||
the offlining failed. | ||
Reading the file is not allowed. |
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