Bug 287741
| Summary: | PCI: hotplug: acpiphp: avoid acpiphp "cannot get bridge info" PCI hotplug failure | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 4 | Reporter: | Flavio Leitner <fleitner> | ||||
| Component: | kernel | Assignee: | Konrad Rzeszutek <konradr> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Martin Jenner <mjenner> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | 4.5 | CC: | garyhade, tao | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | i386 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | RHSA-2008-0665 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2008-07-24 19:16:18 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: | 422551, 430698 | ||||||
| Attachments: |
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Created attachment 193511 [details]
Backported patch from upstream to RHEL4 2.6.9-59.el
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release. Patch tested. Patch posted on RHKL. Committed in 68.16.EL . RPMS are available at http://people.redhat.com/vgoyal/rhel4/ 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-2008-0665.html |
Description of problem: On some systems, the ACPI bus check event can reference a bridge that is higher in the ACPI hierarchy than the bridge immediately above the hotplug PCI slot into which an adapter was just inserted. The current 'acpiphp' code expects the bus check event to reference the bridge immediately above the slot that received the adapter so the hotplug operation can fail on these systems with the message "acpiphp_glue: cannot get bridge info". Version-Release number of selected component (if applicable): kernel 2.6.9-55.ELlargesmp SMP x86_64 How reproducible: Always Steps to Reproduce: 1. Vacate at least one hotplug PCIe slot and boot system. 2. Load the ACPI PCI hotplug driver: # modprobe acpiphp 3. Attempt to hotplug a PCIe adapter. 4. Observe the "acpiphp_glue: cannot get bridge info" log message and lack of power to the PCIe slot (green slot LED is off). Additional info: Patch available in upstream and also backported to RHEL4 2.6.9-59.el Upstream patch: From 0bbd6424c55f0ab9e7fcd6a851bc49e265259ff5 Mon Sep 17 00:00:00 2001 From: Gary Hade <garyhade.com> Date: Thu, 5 Jul 2007 11:10:48 -0700 Subject: [PATCH] PCI: hotplug: acpiphp: avoid acpiphp "cannot get bridge info" PCI hotplug failure