| Summary: | "Can't allocate mem resource" on pci bus rescan | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Vitaly <v.mayatskih> | ||||
| Component: | kernel | Assignee: | Prarit Bhargava <prarit> | ||||
| Status: | CLOSED NOTABUG | QA Contact: | Red Hat Kernel QE team <kernel-qe> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 6.1 | CC: | arozansk, mstowe | ||||
| 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: | 2014-05-21 13:10:52 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: |
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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. Please reopen if still an issue. P. |
Created attachment 539821 [details] RHEL-6, dmesg after unsuccessfull rescan Description of problem: On HP Proliant DL380 G7 system can't allocate pci mem resources for newly appeared PCI-e device. Vice versa, if device was set by bios, and later device was removed from system then bus rescan does not fully remove it: it is visible in output of lspci. This has been seen only on HP Proliant and RHEL-6. HP Proliant and RHEL-5 works fine. Non-HP machine and RHEL-6 works fine too. Version-Release number of selected component (if applicable): kernel 2.6.32-131.21.1.el6.x86_64 How reproducible: 100% Steps to Reproduce: 1. Boot system 2. Plug PCI-e device 3. echo 1 > /sys/bus/pci/rescan Actual results: Kernel can't allocate memory resources for PCI bars: pci 0000:0e:00.0: BAR 1: can't allocate mem resource [0x000000-0x1ffffff] pci 0000:0e:00.0: BAR 0: can't allocate mem resource [0x000000-0x007fff] Expected results: BAR resources assigned.