Bug 464500
| Summary: | RHEL5: memmap=X$Y option doesn't yield new BIOS map | ||||||
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| Product: | Red Hat Enterprise Linux 5 | Reporter: | Prarit Bhargava <prarit> | ||||
| Component: | kernel | Assignee: | Prarit Bhargava <prarit> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Red Hat Kernel QE team <kernel-qe> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | 5.3 | CC: | cward, duck, dzickus, tao, yshao | ||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | i386 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2009-09-02 08:52:00 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
Prarit Bhargava
2008-09-29 13:22:41 UTC
It must be noted that the memmap options are typically used with memmap=exactmap. The customer initially reported that He tried it with 2.6.18-98.el5 kernel specified memmap=1G memmap=128M$0x100000. <snip> kernel: BIOS-e820: 0000000000000000 - 000000000009f400 (usable) kernel: BIOS-e820: 000000000009f400 - 00000000000a0000 (reserved) kernel: BIOS-e820: 00000000000e8000 - 0000000000100000 (reserved) kernel: BIOS-e820: 0000000000100000 - 000000003fff5000 (usable) kernel: BIOS-e820: 000000003fff5000 - 0000000040000000 (reserved) kernel: BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved) kernel: user-defined physical RAM map: kernel: user: 0000000000000000 - 000000000009f400 (usable) kernel: user: 000000000009f400 - 00000000000a0000 (reserved) kernel: user: 00000000000e8000 - 0000000000100000 (reserved) kernel: user: 0000000000100000 - 000000003fff5000 (usable) kernel: user: 000000003fff5000 - 0000000040000000 (reserved) kernel: user: 00000000fec00000 - 0000000100000000 (reserved) kernel: user: 0000000000100000 - 0000000008100000 (reserved) <snip> didn't work. After conversations with vgoyal, memmap=1G should only be used as part of the memmap=exactmap options. However, memmap=X$Y *should* work if the parameter is correctly specified on the command line. Created attachment 317981 [details]
RHEL5 fix for this issue
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. Updating PM score. in kernel-2.6.18-132.el5 You can download this test kernel from http://people.redhat.com/dzickus/el5 Please do NOT transition this bugzilla state to VERIFIED until our QE team has sent specific instructions indicating when to do so. However feel free to provide a comment indicating that this fix has been verified. ~~ Attention - RHEL 5.4 Beta Released! ~~ RHEL 5.4 Beta has been released! There should be a fix present in the Beta release that addresses this particular request. Please test and report back results here, at your earliest convenience. RHEL 5.4 General Availability release is just around the corner! If you encounter any issues while testing Beta, please describe the issues you have encountered and set the bug into NEED_INFO. If you encounter new issues, please clone this bug to open a new issue and request it be reviewed for inclusion in RHEL 5.4 or a later update, if it is not of urgent severity. Please do not flip the bug status to VERIFIED. Only post your verification results, and if available, update Verified field with the appropriate value. Questions can be posted to this bug or your customer or partner representative. 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-2009-1243.html |