Bug 438880
| Summary: | noapictimer required to boot | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Scott Tsai <scottt.tw> |
| Component: | kernel | Assignee: | Thomas Gleixner <tglx> |
| Status: | CLOSED WONTFIX | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | 9 | CC: | kernel-maint |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2009-07-14 16:37:37 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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Description
Scott Tsai
2008-03-25 18:17:18 UTC
Passing "nohz=off" also works while "highres=off" doesn't. Where in the boot process does it hang ? Booting stops here: " CPU 2/1 -> Node 0 CPU: Physical Processor ID: 0 CPU: Processor Core ID: 1 Intel(R) Core(TM)2 Quad CPU Q6600 @2.40GHz stepping 0b checking TSC synchronization [CPU#0 -> CPU#2]:" A few lines before that is: " checking TSC synchronization [CPU#0 -> CPU#1]: passed. " 2.6.25-0.161.rc7.fc9.x86_64 still requires "nohz=off" That's odd.
At this early point in the boot process NOHZ is not yet active, so the nohz=off
should have no effect.
Does the machine boot when you add "maxcpus=2" or "maxcpus=3" to the kernel
command line ?
Thanks,
tglx
I did some more reboots and tried "maxcpus={1,2,3,4}" and found that I can't
actually reliably reproduce the boot hang.
If I don't pass anything extra on the kernel command line all of the following
cases sometimes happens:
1. Boot hangs at "TSC synchronization" step. Sometimes between CPU#0 -> CPU#1,
sometimes between CPU#0 -> CPU#3.
2. Kernel boots. User space init scripts runs. Then kernel oops in a path from
do_IRQ to uhci_giveback_urb
3. System boots into graphical X11 login, but the keyboard doesn't respond
4. Systems functions normally.
Changing version to '9' as part of upcoming Fedora 9 GA. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping This message is a reminder that Fedora 9 is nearing its end of life. Approximately 30 (thirty) days from now Fedora will stop maintaining and issuing updates for Fedora 9. 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 '9'. 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 9'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 9 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 Fedora 9 changed to end-of-life (EOL) status on 2009-07-10. Fedora 9 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. |