ae45e6f1bb
We replace "reserved_memory = XXXX"(default value is 8192) with "reserved_memory = 1024" in /etc/lvm/lvm.conf used by "lvm2", it can save 7MB peak memory consumption, so lower the possibility of OOM under kdump. For kdump, we don't have too many lvm targets, lvm2 locates in the RAM(rootfs), so don't need that much memory, as discussed with lvm people, they agreed that we use 1MB under kdump as long as there are not that many lvm targets invloved. We modify /etc/lvm/lvm.conf when "99kdumpbase" install() is executed, because it is parsed after "90lvm" by dracut. We add the code unconditionally with &>/dev/null to ignore errors, it doesn't matter in case of "lvm" not included(i.e. there is no lvm.conf). Signed-off-by: Xunlei Pang <xlpang@redhat.com> Acked-by: Dave Young <dyoung@redhat.com>
Adding a patch to kexec-tools ============================= There is a mailing list kexec@lists.fedoraproject.org where all the dicussion related to fedora kexec-tools happen. All the patches are posted there for inclusion and committed to kexec-tools after review. So if you want your patches to be included in fedora kexec-tools package, post these to kexec@lists.fedoraproject.org. One can subscribe to list and browse through archives here. https://admin.fedoraproject.org/mailman/listinfo/kexec