Our tool did not trace back the whole path, so, now we could say it might happen. On Thu, Aug 22, 2019 at 1:12 PM Michal Hocko <mhocko@xxxxxxxxxx> wrote: > > On Thu 22-08-19 13:07:17, Yizhuo Zhai wrote: > > This will happen if variable "wb->memcg_css" is NULL. This case is reported > > by our analysis tool. > > Does your tool report the particular call path and conditions when that > happen? Or is it just a "it mignt happen" kinda thing? > > > Since the function mem_cgroup_wb_domain() is visible to the global, we > > cannot control caller's behavior. > > I am sorry but I do not understand what is this supposed to mean. > -- > Michal Hocko > SUSE Labs -- Kind Regards, Yizhuo Zhai Computer Science, Graduate Student University of California, Riverside
