On Fri 30-09-11 00:46:41, Tejun Heo wrote: > Hello, > > On Fri, Sep 30, 2011 at 09:41:25AM +0200, Michal Hocko wrote: > > > With pending freezer changes, allowing TIF_MEMDIE tasks to exit > > > freezer by modifying freezing() shouldn't be difficult, which should > > > be race-free and much simpler than diddling with thaw_task(). > > > > Will the rework help with the initial problem of unkillable OOM selected > > frozen tasks or it will just help with other races that might be present > > with the patch? In other words will this work deprecate the 2 patches > > sent earlier in this thread? > > I think it shouldn't be difficult to allow OOM-killing frozen tasks. > That should be good enough, right? Yes, if you could just force_sig(SIGKILL, p) frozen task then it would be ideal because we wouldn't have to call thaw_process from OOM path. > > > > How urgent is this? Can we wait for the next merge window? > > > > Yes, I think we can wait some more. > > I'm still processing rather large backlog. I'll ping you back once I > sort out the pending freezer changes. You were on the CC quite early but it was quite late when I noticed that I have accidentally used your kernel.org address. Just for reference the original discussion started here: https://lkml.org/lkml/2011/8/23/45 and this thread started here: http://www.spinics.net/lists/linux-mm/msg24693.html > > Thanks. > > -- > tejun > > -- > 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/ . > Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ > Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a> -- Michal Hocko SUSE Labs SUSE LINUX s.r.o. Lihovarska 1060/12 190 00 Praha 9 Czech Republic -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>