Bug 276091
| Summary: | pstack suspends process | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 4 | Reporter: | Olle Liljenzin <olle> |
| Component: | kernel | Assignee: | Jan Kratochvil <jan.kratochvil> |
| Status: | CLOSED UPSTREAM | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | medium | ||
| Version: | 4.0 | CC: | cagney |
| 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: | 2007-09-04 18:21:04 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: | |||
| Bug Depends On: | 276861 | ||
| Bug Blocks: | |||
This is a kernel bug and it is present even in recent upstream kernels (tested 2.6.22-rc4-git7). The kernel bug reproduces a different way in RHEL-4.6 GDB, the problem has been resubmitted as Bug 276861. Thanks for the notification. RHEL-5 and F-7 kernels provide a utrace interface which does not have this bug. |
Description of problem: The process is stopped by pstack Version-Release number of selected component (if applicable): 2.6.9-55.ELsmp gdb-6.3.0.0-1.143.el4 How reproducible: Always Steps to Reproduce: t.c: #include <sys/stat.h> int main(int argc, char *argv[]) { struct stat b1; while(1) { stat("/", &b1); } } 1. 'cc t.c' and run a.out 2. strace -p <pid> (where pid is the process id for the a.out process) 3. stop strace with CTRL-C 4. pstack <pid> Actual results: a.out is stopped Expected results: a.out should keep running