Red Hat Bugzilla – Full Text Bug Listing
|Summary:||modprobe is slow|
|Product:||[Fedora] Fedora||Reporter:||Harald Hoyer <harald>|
|Component:||module-init-tools||Assignee:||Jon Masters <jcm>|
|Status:||CLOSED WONTFIX||QA Contact:||Fedora Extras Quality Assurance <extras-qa>|
|Fixed In Version:||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||2009-01-09 02:10:52 EST||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
|Bug Depends On:|
Description Harald Hoyer 2007-07-23 09:43:14 EDT
modprobe is slow. Especially when trying to modprobe a modalias, which does not exist. Please try to speedup modprobe. udev startup times will be shortened a lot :) Thanks!
Comment 1 Florian La Roche 2007-07-24 05:08:25 EDT
Harald syas modprobe is called quite often from udev (about 40 times on a normal setup?) The following shows that modprobe needs quite some time for a non-existent module to just process it: [root@dudweiler ~]# time for i in `seq 1 200`; do modprobe hugo 2>/dev/null; done real 0m3.516s user 0m3.340s sys 0m0.168s [root@dudweiler ~]# time for i in `seq 1 200`; do grep Hallo /etc/passwd; done real 0m0.165s user 0m0.065s sys 0m0.095s Doesn't look like modprobe is opening up too many files though: 3588 open("/etc/ld.so.cache", O_RDONLY) = 3 3588 open("/lib/libc.so.6", O_RDONLY) = 3 3588 open("/etc/modprobe.conf", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = -1 ENOTDIR (Not a directory) 3588 open("/etc/modprobe.conf", O_RDONLY) = 3 3588 open("/etc/modprobe.d", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 3 3588 open("/etc/modprobe.d/blacklist-firewire", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = -1 ENOTDIR (Not a directory) 3588 open("/etc/modprobe.d/blacklist-firewire", O_RDONLY) = 4 3588 open("/etc/modprobe.d/modprobe.conf.dist", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = -1 ENOTDIR (Not a directory) 3588 open("/etc/modprobe.d/modprobe.conf.dist", O_RDONLY) = 4 3588 open("/etc/modprobe.d/blacklist", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = -1 ENOTDIR (Not a directory) 3588 open("/etc/modprobe.d/blacklist", O_RDONLY) = 4 3588 open("/etc/modprobe.d/blacklist-compat", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = -1 ENOTDIR (Not a directory) 3588 open("/etc/modprobe.d/blacklist-compat", O_RDONLY) = 4 3588 open("/etc/modprobe.d", O_RDONLY) = 3 3588 open("/lib/modules/2.6.18-36.el5/modules.dep", O_RDONLY) = 3 3588 open("/lib/modules/2.6.18-36.el5/modules.alias", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = -1 ENOTDIR (Not a directory) 3588 open("/lib/modules/2.6.18-36.el5/modules.alias", O_RDONLY) = 3 Jonathan Masters, any idea on what's going on here? regards, Florian La Roche
Comment 2 Florian La Roche 2007-07-24 05:22:32 EDT
Some more data: http://sourceware.org/ml/systemtap/2007-q1/msg00140.html regards, Florian La Roche
Comment 3 Bug Zapper 2008-04-04 09:25:52 EDT
Based on the date this bug was created, it appears to have been reported during the development of Fedora 8. In order to refocus our efforts as a project we are changing the version of this bug to '8'. If this bug still exists in rawhide, please change the version back to rawhide. (If you're unable to change the bug's version, add a comment to the bug and someone will change it for you.) Thanks for your help and we apologize for the interruption. The process we're following is outlined here: http://fedoraproject.org/wiki/BugZappers/F9CleanUp We will be following the process here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping to ensure this doesn't happen again.
Comment 4 Bug Zapper 2008-11-26 02:35:39 EST
This message is a reminder that Fedora 8 is nearing its end of life. Approximately 30 (thirty) days from now Fedora will stop maintaining and issuing updates for Fedora 8. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as WONTFIX if it remains open with a Fedora 'version' of '8'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version prior to Fedora 8's end of life. Bug Reporter: Thank you for reporting this issue and we are sorry that we may not be able to fix it before Fedora 8 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora please change the 'version' of this bug to the applicable version. If you are unable to change the version, please add a comment here and someone will do it for you. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. The process we are following is described here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
Comment 5 Bug Zapper 2009-01-09 02:10:52 EST
Fedora 8 changed to end-of-life (EOL) status on 2009-01-07. Fedora 8 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.