Hi,
I'm seeing a serious memory leak whenever I use my /home partition.
It's an encrypted partition using dm-crypt. Simply running
'stress -d 5' is enough to exhaust the memory in a few minutes.
When I stop 'stress' the memory isn't returned.
This doesn't seem to happen when I run stress on a normal (no dm and
no encryption) partition.
Here's the output of 'free -m' before and after 'stress -d 1 -t 5'
Before:
total used free shared buffers cached
Mem: 751 584 167 0 14 235
-/+ buffers/cache: 334 416
Swap: 980 0 980
After:
total used free shared buffers cached
Mem: 751 619 131 0 12 169
-/+ buffers/cache: 437 313
Swap: 980 0 980
That's 100Mb of RAM gone in 5 seconds.
I'm using a standard x86 centrino laptop.
The log files don't reveal anything suspicious.
git bisect tells me it started in one of these commits:
d24517d793f21edab1a411da95f2c45cb88a84aa,
5bb23a688b2de23d7765a1dd439d89c038378978 and
9cc54d40b8ca01fcefc9151044b6996565061d90.
The bug is still present in the last version of Linus' tree
(65a6ec0d72a07f16719e9b7a96e1c4bae044b591)
Let me know if I can provide more information.
Regards,
Kristof
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