[Xen-devel] Memory leak associated with xc_map_foreign_batch?

["Byrne, John (HP Labs)" <john.l.byrne@xxxxxx>]

I running a modified Xen x86_64 based on xen-unstable changeset f80cf52a4fb6, 
linux-2.6.18-xen changset 271d9b9bee40. (Roughly 3.4.0-rc4-pre)

I'm running a process that loops using xc_map_foreign_batch() to map bunch of 
pages from a couple of domains, compares some of them, and then calls munmap() 
on the regions. /proc/meminfo shows a few extra K turning up as Pagetables 
every 10 seconds or so and the machine eventually runs out of memory and the 
OOM killer fires.

I was wondering if anyone knew of a memory leak in the 
xc_map_foreign_batch()/munmap() path that might have been fixed or where I 
might look? (Or possibly what silly thing I'm doing wrong.)

Thanks,

John Byrne


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