Am 05.06.2014 17:00, schrieb Michal Hocko: > On Thu 05-06-14 16:00:41, Richard Weinberger wrote: >> Don't spam the kernel logs if the oom_control event fd has listeners. >> In this case there is no need to print that much lines as user space >> will anyway notice that the memory cgroup has reached its limit. > > But how do you debug why it is reaching the limit and why a particular > process has been killed? In my case it's always because customer's Java application gone nuts. So I don't really have to debug a lot. ;-) But I can understand your point. > If we are printing too much then OK, let's remove those parts which are > not that useful but hiding information which tells us more about the oom > decision doesn't sound right to me. What about adding a sysctl like "vm.oom_verbose"? By default it would be 1. If set to 0 the full OOM information is only printed out if nobody listens to the event fd. Thanks, //richard -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>