Bug 1274445
Summary: | tuned-profiles-nfv: add nohz=on to the kernel command-line | ||
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Product: | Red Hat Enterprise Linux 7 | Reporter: | Luiz Capitulino <lcapitulino> |
Component: | tuned | Assignee: | Jaroslav Škarvada <jskarvad> |
Status: | CLOSED WORKSFORME | QA Contact: | qe-baseos-daemons |
Severity: | unspecified | Docs Contact: | |
Priority: | unspecified | ||
Version: | 7.3 | CC: | jeder, jskarvad, williams |
Target Milestone: | rc | ||
Target Release: | --- | ||
Hardware: | Unspecified | ||
OS: | Unspecified | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2015-11-03 14:38:22 UTC | Type: | Bug |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | |||
Bug Blocks: | 1240765, 1273048 |
Description
Luiz Capitulino
2015-10-22 17:59:51 UTC
Fixed trivially upstream by the following commit: https://git.fedorahosted.org/cgit/tuned.git/commit/?id=9aeb585a636a5987cb5053317f4d9bb83d27f3fa I will create nicer fix once the feature from bug 1274464 is ready. Thanks Jaroslav. There's a discussion downstream about enabling nohz automagically when the kernel sees nohz_full= in the command-line. If this fix is implemented, then we don't have to rush with this on downstream (although it doesn't hurt having, in fact I think it's a good idea to have it because KVM-RT do depend on this feature). Ah, Luiz beat me to it. I believe we'll have the nohz fix in 7.2 GA, presuming everything goes as planned. The fix is to to enable nohz if we see nohz_full while parsing/processing the boot command line. Bz for that one is 1274519. The RHEL RT kernel got this issue fixed by enabling nohz when the kernel sees nohz_full= in the command-line (bug 1276071), so we don't need this fix anymore. Jarda, sorry for making you fix this in upstream. You could revert the fix, as it's probably unusual to have nohz disabled by default. Or, you could leave it this way as it doesn't make any difference. |