One more thought that may be nothing, but when kmemleak crashed, SUnreclaim was at 932552 kB, and after reclaimed/cleared 299840 kB. There weren't any performance issues like when I had a leak of 5.5 gB in the 4.18 kernel. On Mon, Jan 7, 2019 at 3:52 AM Catalin Marinas <catalin.marinas@xxxxxxx> wrote: > > 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