Bug 623519
| Summary: | ENOPERM when reading /proc/sys/vm/mmap_min_addr | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | Hiroto Shibuya <hiroto.shibuya> |
| Component: | kernel | Assignee: | Eric Paris <eparis> |
| Status: | CLOSED ERRATA | QA Contact: | Eryu Guan <eguan> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | 5.5 | CC: | anton, dougsland, eguan, gansalmon, itamar, jiali, jonathan, kernel-maint, qcai, rth, thomas.dubuisson |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | 583292 | Environment: | |
| Last Closed: | 2011-01-13 21:09:35 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
Hiroto Shibuya
2010-08-12 02:43:32 UTC
This appeared in RHEL 5 updates as regression. This was not an issue in 2.6.18-164.15, but all kernels after 2.6.18-194.3 exhibit this problem. Posted to internal list for review. Backport of upstream patch 4ae69e6b718589abe97c9625ccbb1e0bc95a8c0e 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. in kernel-2.6.18-231.el5 You can download this test kernel (or newer) from http://people.redhat.com/jwilson/el5 Detailed testing feedback is always welcomed. Validated: $ uname -r 2.6.18-231.el5 $ cat /proc/sys/vm/mmap_min_addr 0 Thanks! Reproduced on -194 kernel [test@nec-em9 ~]$ uname -a Linux nec-em9.rhts.eng.bos.redhat.com 2.6.18-194.el5 #1 SMP Tue Mar 16 21:52:39 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux [test@nec-em9 ~]$ id uid=500(test) gid=500(test) groups=500(test) context=root:system_r:unconfined_t:SystemLow-SystemHigh [test@nec-em9 ~]$ cat /proc/sys/vm/mmap_min_addr cat: /proc/sys/vm/mmap_min_addr: Operation not permitted [test@nec-em9 ~]$ Verified on -233 kernel [test@nec-em9 ~]$ uname -a Linux nec-em9.rhts.eng.bos.redhat.com 2.6.18-233.el5 #1 SMP Mon Nov 22 17:45:30 EST 2010 x86_64 x86_64 x86_64 GNU/Linux [test@nec-em9 ~]$ id uid=500(test) gid=500(test) groups=500(test) context=root:system_r:unconfined_t:SystemLow-SystemHigh [test@nec-em9 ~]$ cat /proc/sys/vm/mmap_min_addr 4096 [test@nec-em9 ~]$ 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-2011-0017.html |