Bug 532951
| Summary: | [4.7] The strace hangs when strace is executed against a multi-thread process. | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 4 | Reporter: | RHEL Program Management <pm-rhel> | |
| Component: | strace | Assignee: | Andreas Schwab <schwab> | |
| Status: | CLOSED ERRATA | QA Contact: | qe-baseos-tools-bugs | |
| Severity: | urgent | Docs Contact: | ||
| Priority: | urgent | |||
| Version: | 4.7 | CC: | cdahlin, cward, ebachalo, jmarchan, mnowak, moshiro, pm-eus, schwab, tao | |
| Target Milestone: | rc | Keywords: | ZStream | |
| Target Release: | --- | |||
| Hardware: | All | |||
| OS: | Linux | |||
| Whiteboard: | ||||
| Fixed In Version: | strace-4.5.16-1.el4_8.7 | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 539506 (view as bug list) | Environment: | ||
| Last Closed: | 2010-04-08 06:48:03 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: | 488282, 539506, 567321 | |||
| Bug Blocks: | ||||
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Description
RHEL Program Management
2009-11-04 13:42:06 UTC
That appears to be a kernel bug: the process that strace is waiting for is in uninteruptable sleep. I can hardly verify this bug is gone then. Can you please file a kernel bug with possibly more appropriate information, than I could ever provide, and block against this bug? I believe kernel guys can give us more clue what's wrong here. I see no way to work around this kernel bug again. wait4 should return with ESRCH if the process is already gone, but blocks instead. Do we want a separate BZ for the kernel issue? Casey: You mean "Bug 539506 - [4.7] wait4 blocks on non-existing pid"? That'd do it, thank you. Note: This bug is fixed when bug 567321 is fixed. Fix for bug 567321 will be included in next 4.8.z kernel erratum however we ship this strace erratum RHBA-2010:0074 now due to bug 567206. Thank you for your understanding. 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/RHBA-2010-0074.html |