Bug 410311
| Summary: | New kernel syscall sys_rlimit64 for resource limits | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 4 | Reporter: | Adam Stokes <astokes> |
| Component: | kernel | Assignee: | Jerome Marchand <jmarchan> |
| Status: | CLOSED INSUFFICIENT_DATA | QA Contact: | Martin Jenner <mjenner> |
| Severity: | low | Docs Contact: | |
| Priority: | high | ||
| Version: | 4.6 | CC: | gss-xmlrpc |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2010-06-24 14:08:17 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: | |||
if you are using 4.6.9, then it is RHEL4 not RHEL5. In RHEL4, have you try the PPC64 largesmp version of the kernel? Hardlimit for memlock is set in compile time and equals to 8 pages (32kb). And it is not possible to increase hardlimit value in run time. Adam, can you provide us with more information? I can not reproduce the issue, neither on RHEL4.6 nor on more recent 4.8. If you still experience problem, please provide us with more info: - what exact kernel version do you use, - what error do you get. |
Description of problem: In this particular case users of ppc64 are unable to set things like memlock higher than 4G Version-Release number of selected component (if applicable): 2.6.9 How reproducible: Everytime Steps to Reproduce: Set memlock higher than 4G in /etc/security/limits.conf This simple application shows its effect : #include <sys/resource.h> #include <stdio.h> #include <stdlib.h> int main () { struct rlimit rlim; rlim.rlim_max = 5961560; rlim.rlim_cur = rlim.rlim_max; if ( setrlimit(8, &rlim) < 0) { fprintf(stderr,"Failed to set memlock max\n"); exit(1); } fprintf(stderr,"rlim_cur: %ld\n",rlim.rlim_cur); return 1; } Actual results: Fails to set memlock higher than 4G. Expected results: Allow for higher threshold Additional info: