Messages in this thread |  | | | Subject | Re: Memory leak in iwlwifi or false positive? | | From | Catalin Marinas <> | | Date | Sat, 04 Jul 2009 00:17:22 +0100 |
Hi Reinette,
On Thu, 2009-07-02 at 15:25 -0700, reinette chatre wrote: > On Thu, 2009-07-02 at 14:32 -0700, Catalin Marinas wrote: > > pushed yet) it seems to no longer show so many random leaks. However, I > > get a lot of leaks reported in the iwlwifi code, about 4800 and they do > > not disappear from any subsequent memory scanning (as is usually the > > case with false positives). There are a lot of kmalloc's of < 512 bytes > > and /proc/slabinfo seems to be in line with this: [...] > Yes - this sounds about right. You tested with 5100 hardware which by > default initializes 20 TX queues. For each of these queues it maintains > a 256 buffer array of commands with 356 bytes used for each command.
With the latest kmemleak changes which I pushed to Linus they disappeared. I missed the kmalloc_large in slub and probably some of the root objects that keep references to others weren't scanned (maybe the kzalloc call in wiphy_new was missed as it links to all the bulk of the reported objects in the iwlwifi code).
Thanks.
-- Catalin
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