On Fri, Sep 22, 2017 at 06:44:12PM +0300, Konstantin Khlebnikov wrote: > On Thu, Sep 21, 2017 at 2:06 AM, Roman Gushchin <guro@xxxxxx> wrote: > > Right now there is no convenient way to check if a process is being > > coredumped at the moment. > > > > It might be necessary to recognize such state to prevent killing > > the process and getting a broken coredump. > > Writing a large core might take significant time, and the process > > is unresponsive during it, so it might be killed by timeout, > > if another process is monitoring and killing/restarting > > hanging tasks. > > > > To provide an ability to detect if a process is in the state of > > being coreduped, we can expose a boolean CoreDumping flag > > in /proc/pid/status. > > Makes sense. > > Maybe print this line only when task actually makes dump? I don't think we do this trick with any other fields... > And probably expose pid of coredump helper. It will be racy in most cases, so I'm not sure it worth it. What's the usecase? In any case, it sounds like a separate feature. > > Add Oleg into CC. Thank you! -- 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>
