Messages in this thread |  | | | Date | Tue, 7 Dec 2010 11:38:20 -0500 | | From | Ted Ts'o <> | | Subject | Re: ext4 memory leak? |
| |
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
|  |