Bug 561108
| Summary: | platform:ahern:rmmod hangs at 100% cpu removing usbnet module | ||||||
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| Product: | Red Hat Enterprise Linux 4 | Reporter: | Issue Tracker <tao> | ||||
| Component: | kernel | Assignee: | Prarit Bhargava <prarit> | ||||
| Status: | CLOSED ERRATA | QA Contact: | chen yuwen <yuchen> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | high | ||||||
| Version: | 4.7 | CC: | emcnabb, jolsa, qcai, tao, tgraf, vgoyal | ||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2011-02-16 15:30:46 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: | |||||||
| Bug Depends On: | |||||||
| Bug Blocks: | 485811, 583726 | ||||||
| Attachments: |
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Description
Issue Tracker
2010-02-02 18:08:07 UTC
Event posted on 01-11-2010 12:45pm CST by daahern Description of problem: 'rmmod usbnet' hangs How reproducible: reproducible on demand for an x3650M2 with an IMM Steps to Reproduce: Login and run 'rmmod usbnet' Actual results: rmmod hangs, spinning at 100% cpu Expected results: rmmod unloads usbnet module and exits Additional info: repeatable with a KVM hosted VM as well. Add a usb net device, login to VM and run rmmod usbnet. This event sent from IssueTracker by streeter [SEG - Kernel] issue 386773 Event posted on 01-18-2010 10:03pm CST by daahern Max Asbock with IBM verified the following patch addresses the problem: http://lkml.indiana.edu/hypermail/linux/kernel/0505.0/0855.html netdump with the x3650M2's is broken, so I cannot acquire a vmcore. It requires the patch mentioned in another issue tracker case. As I understand it Red Hat has an x3650M2, so you should be able to verify it on that server. David Ahern Internal Status set to 'Waiting on Support' Status set to: Waiting on Tech This event sent from IssueTracker by streeter [SEG - Kernel] issue 386773 Event posted on 02-01-2010 10:22am CST by rprice **NOTES** I have a reproducer setup at root.rdu.redhat.com. Removing the 'usbnet' module will cause the CPU to pike at 100% but you can still ssh into the machine. This event sent from IssueTracker by streeter [SEG - Kernel] issue 386773 upstream commit is b2d84f078a8be40f5ae3b4d2ac001e2a7f45fe4f Created attachment 394631 [details]
RHEL4 fix for this issue
Committed in 89.25.EL . RPMS are available at http://people.redhat.com/vgoyal/rhel4/ Confirm the patch on kernel 2.6.9-89.25.EL. No hardware. Setting SanityOnly. An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2011-0263.html |