Bug 127328
| Summary: | [PATCH] clock_gettime() acting buggy | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 3 | Reporter: | Bernd Schmidt <bernds> | ||||
| Component: | glibc | Assignee: | Jakub Jelinek <jakub> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Brian Brock <bbrock> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | 3.0 | CC: | tao | ||||
| 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: | 2004-09-02 05:57:31 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: | |||||||
| Attachments: |
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Created attachment 101663 [details]
A patch to fix this problem
The problem is obvious once you spot it - function type mismatch between
linuxthreads and sysdeps/unix/clock_settime.c
Fix confirmed with glibc-2.3.2-95.26. Fix will be released in U3 errata. An errata 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 the 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/RHBA-2004-384.html |
From Issue Tracker (38501): It looks like we are hitting a bug in the pthreads implementation in LinuxThreads-0.10 version in AS 3.0. Specifically, the clock_gettime() function with CLOCK_THREAD_CPUTIME_ID is buggy and coredumps. A workaround is to use CLOCK_PROCESS_CPUTIME_ID which works. bernds@tesuji:~> cat timer-test.c #include <stdio.h> #include <time.h> #include <unistd.h> #define MY_CLOCK_ID CLOCK_THREAD_CPUTIME_ID /* #define MY_CLOCK_ID CLOCK_PROCESS_CPUTIME_ID */ typedef struct timespec timespec_t; int main(int argc, char **argv) { timespec_t start; char dummy1[100]; timespec_t stop; char dummy2[100]; printf("Starting Timer...\n"); clock_gettime(MY_CLOCK_ID, &start); printf("Sleeping...\n"); sleep(1); printf("Stopping Timer...\n"); clock_gettime(MY_CLOCK_ID, &stop); printf("Done...\n"); } bernds@tesuji:~> gcc timer-test.c -lrt bernds@tesuji:~> LD_ASSUME_KERNEL=2.2.5 ./a.out Starting Timer... Segmentation fault