Messages in this thread | | | Subject | Re: kmemleak failure (was Re: backing up ext4 fs, system unresponsive, thrashing like crazy even though swap is unused) | From | Dimitrios Apostolou <> | Date | Mon, 26 Nov 2012 01:19:54 +0200 |
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On Mon, 2012-11-26 at 00:41 +0200, Dimitrios Apostolou wrote: > Hello, > > I tried running a kmemleak and DEBUG_SLUB enabled kernel, but almost > within 5 minutes of starting the backup process, I got: > > [ 486.863124] kmemleak: Cannot allocate a kmemleak_object structure > [ 486.887195] kmemleak: Automatic memory scanning thread ended > [ 486.906604] kmemleak: Kernel memory leak detector disabled
Important detail: I decided to try kmemleak after suspecting a leak because 'echo 3>/proc/sys/vm/drop_caches' left about 90MB out of 118MB of ext4_inode_cache, and I found no way to get rid of that (via remounting filesystems for example).
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