Re: kmemleak: Cannot allocate a kmemleak_object structure - Kernel 4.19.13

[Catalin Marinas]

Hi Nathan,

On Tue, Jan 01, 2019 at 01:17:06PM -0600, Nathan Royce wrote:
> I had a leak somewhere and I was directed to look into SUnreclaim
> which was 5.5 GB after an uptime of a little over 1 month on an 8 GB
> system. kmalloc-2048 was a problem.
> I just had enough and needed to find out the cause for my lagging system.
> 
> I finally upgraded from 4.18.16 to 4.19.13 and enabled kmemleak to
> hunt for the culprit. I don't think a day had elapsed before kmemleak
> crashed and disabled itself.

Under memory pressure, kmemleak may fail to allocate memory. See this
patch for an attempt to slightly improve things but it's not a proper
solution:

http://lkml.kernel.org/r/20190102180619.12392-1-cai@xxxxxx

-- 
Catalin