a65dde2d10
Even after having asked NM to stop managing a unneeded NIC, a NIC driver
may still waste memory. For example, mlx5_core uses a substantial amount
of memory during driver initialization,
======== Report format module_summary: ========
Module mlx5_core using 350.2MB (89650 pages), peak allocation 367.4MB (94056 pages)
Module squashfs using 13.1MB (3360 pages), peak allocation 13.1MB (3360 pages)
Module overlay using 2.1MB (550 pages), peak allocation 2.2MB (555 pages)
Module dns_resolver using 0.9MB (219 pages), peak allocation 5.2MB (1338 pages)
Module mlxfw using 0.7MB (172 pages), peak allocation 5.3MB (1349 pages)
======== Report format module_summary END ========
======== Report format module_top: ========
Top stack usage of module mlx5_core:
(null) Pages: 89650 (peak: 94056)
ret_from_fork (0xffffda088b4165f8) Pages: 60007 (peak: 60007)
kthread (0xffffda088b4bd7e4) Pages: 60007 (peak: 60007)
worker_thread (0xffffda088b4b48d0) Pages: 60007 (peak: 60007)
process_one_work (0xffffda088b4b3f40) Pages: 60007 (peak: 60007)
work_for_cpu_fn (0xffffda088b4aef00) Pages: 53906 (peak: 53906)
local_pci_probe (0xffffda088b9e1e44) Pages: 53906 (peak: 53906)
probe_one mlx5_core (0xffffda084f899cc8) Pages: 53518 (peak: 53518)
mlx5_init_one mlx5_core (0xffffda084f8994ac) Pages: 49756 (peak: 49756)
mlx5_function_setup.constprop.0 mlx5_core (0xffffda084f899100) Pages: 44434 (eak: 44434)
mlx5_satisfy_startup_pages mlx5_core (0xffffda084f8a4f24) Pages: 44434 (peak: 44434)
mlx5_function_setup.constprop.0 mlx5_core (0xffffda084f899078) Pages: 5285 (peak: 5285)
mlx5_cmd_init mlx5_core (0xffffda084f89e414) Pages: 4818 (peak: 4818)
mlx5_alloc_cmd_msg mlx5_core (0xffffda084f89aaa0) Pages: 4403 (peak: 4403)
This memory consumption is completely unnecessary when kdump doesn't need
this NIC. Only install needed NIC drivers to prevent this kind of waste.
Note
1. this patch depends on [1] to ask dracut to not install NIC drivers.
2. "ethtool -i" somehow fails to get the vlan driver
3. team.ko doesn't depend on the team mode drivers so we need to install
the team mode drivers manually.
[1] https://github.com/dracutdevs/dracut/pull/1789
Signed-off-by: Coiby Xu <coxu@redhat.com>
Reviewed-by: Thomas Haller <thaller@redhat.com>
Reviewed-by: Philipp Rudo <prudo@redhat.com>
|
||
|---|---|---|
| spec | ||
| tests | ||
| .editorconfig | ||
| .gitignore | ||
| .shellspec | ||
| 60-kdump.install | ||
| 92-crashkernel.install | ||
| 98-kexec.rules | ||
| 98-kexec.rules.ppc64 | ||
| README | ||
| crashkernel-howto.txt | ||
| dracut-early-kdump-module-setup.sh | ||
| dracut-early-kdump.sh | ||
| dracut-fadump-init-fadump.sh | ||
| dracut-fadump-module-setup.sh | ||
| dracut-kdump-capture.service | ||
| dracut-kdump-emergency.service | ||
| dracut-kdump-emergency.target | ||
| dracut-kdump.sh | ||
| dracut-module-setup.sh | ||
| dracut-monitor_dd_progress | ||
| early-kdump-howto.txt | ||
| fadump-howto.txt | ||
| gen-kdump-sysconfig.sh | ||
| kdump-dep-generator.sh | ||
| kdump-in-cluster-environment.txt | ||
| kdump-lib-initramfs.sh | ||
| kdump-lib.sh | ||
| kdump-logger.sh | ||
| kdump-migrate-action.sh | ||
| kdump-restart.sh | ||
| kdump-udev-throttler | ||
| kdump.conf | ||
| kdump.conf.5 | ||
| kdump.service | ||
| kdumpctl | ||
| kdumpctl.8 | ||
| kexec-kdump-howto.txt | ||
| kexec-tools-2.0.23-s390_handle_R_390_PLT32DBL_reloc_entries_in_machine_apply_elf_rel_.patch | ||
| kexec-tools.spec | ||
| live-image-kdump-howto.txt | ||
| mkdumprd | ||
| mkdumprd.8 | ||
| mkfadumprd | ||
| sources | ||
| zanata-notes.txt | ||
README
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