On Tue, Dec 07, 2010 at 11:21:20PM +0800, Wu Fengguang wrote: > On Tue, Dec 07, 2010 at 10:33:51PM +0800, Wu Fengguang wrote: > > > In a simple dd test on a 8p system with "mem=256M", I find the light > > > > When increasing to 10 concurrent dd tasks, I managed to crash ext4.. > > (2 concurrent dd's are OK, with very good write performance.) What was the dd command line? Specifically, how big were the file writes? I haven't been able to replicate a leak. I'll try on a small system seeing if I can replicate an OOM kill, but I'm not seeing a leak. (i.e., after the dd if=/dev/zero of=/test/$i" jobs) are finished, the memory utilization looks normal and I don't see any obvious slab leaks. - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html