[Xen-devel] is paging_new_log_dirty_page alloc page harmfull?

[MaoXiaoyun <tinnycloud@xxxxxxxxxxx>]

Hi:
 
      I've been testing on memory overcommit on Xen by using balloon driver.
On our stress test, it is possilbe that heap memory in xen is use up. Thus the serial
port will show log as below:
 
(XEN) paging_log_dirty_range: 138 failed page allocs while logging dirty pages
(XEN) paging_log_dirty_range: 138 failed page allocs while logging dirty pages
(XEN) paging_log_dirty_range: 138 failed page allocs while logging dirty pages

I am asking is it harmfull to domain?
If so, I might need find a way to reserve some memory for xen, which looks
kinds of difficult.
 
Thanks.

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