| Summary: | rmmod amd64_edac_mod causes kernel soft lockup | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | adm.fkt.physik |
| Component: | kernel | Assignee: | Aristeu Rozanski <arozansk> |
| Status: | CLOSED DUPLICATE | QA Contact: | Red Hat Kernel QE team <kernel-qe> |
| Severity: | high | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 6.4 | CC: | arozansk |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2013-10-15 14:58:23 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Attachments: | |||
Created attachment 557840 [details]
/var/log/messages excerpt for rmmod amd64_edac_mod after kernel update
update from 2.6.32-220.2.1.el6.x86_64 to 2.6.32-220.4.1.el6.x86_64 does not fix the bug
Since RHEL 6.3 External Beta has begun, and this bug remains unresolved, it has been rejected as it is not proposed as exception or blocker. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux. update to 6.4 and to kernel-2.6.32-358.14.1.el6.x86_64 does not fix the bug rmmod amd64_edac_mod -> shell freezes -> edac_core depdendy -1 -> module amd64_edac_mod not removed -> after ~1 minute node freezes completely Created attachment 786463 [details]
/var/log/messages excerpt for rmmod amd64_edac_mod after kernel and distro update
This is fixed by BZ#831127 which should be in 6.5. *** This bug has been marked as a duplicate of bug 831127 *** |
Created attachment 555034 [details] /var/log/messaes excerpt for rmmod amd64_edac_mod Description of problem: Boot kernel 2.6.32-220.2.1.el6.x86_64 and unload EDAC modules by rmmod amd64_edac_mod edac_mce_amd edac_core Kernel will inhibit soft lockup BUG and will become unresponsive. Version-Release number of selected component (if applicable): kernel-2.6.32-220.2.1.el6.x86_64 kernel-firmware-2.6.32-220.2.1.el6.noarch How reproducible: always Steps to Reproduce: 1. Boot kernel 2.6.32-220.2.1.el6.x86_64 on Supermicro H8DGT-HF BIOS Date: 11/09/2011 Rev: 2.0a (also tested: BIOS Rev: 1.0c) and 2 x Opteron 6128 vendor_id : AuthenticAMD cpu family: 16 model : 9 model name: AMD Opteron(tm) Processor 6128 stepping : 1 and 64 GB RAM. 2. modprobe amd64_edac_mod edac_mce_amd edac_core (if modules are not auto-loaded) 3. rmmod amd64_edac_mod Actual results: see attachment with excerpt of /var/log/messsages. Expected results: unload the module, no crash Additional info: works fine with 2.6.32-131.21.1.el6.x86_64