On Mon, Nov 18, 2013 at 7:32 AM, Vivek Goyal <vgoyal@xxxxxxxxxx> wrote: >> You may need bunch of PCIe cards installed. >> >> The system with 6TiB + 16 PCIe cards, second kernel OOM. >> The system with 4.5TiB + 16 PCIe cards, second kernel works with vmcore dumped. > > What's the distro you are testing with? Do you have latest bits of > makeudmpfile where we use cyclic mode by default and one does not need > more reserved memory because of more physical memory present in the > box. I suspect that might be the problem in your testing environment > and old makedumpfile wil try to allocate larger memory on large > RAM machines and OOM. Default RHEL 6.4. Will check if i can enable cyclic mode. Thanks Yinghai -- 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>