Bug 754096
| Summary: | ltrace crashes on PowerPC if tracing is limited by `-e' to event not present in trace | ||||||
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| Product: | Red Hat Enterprise Linux 5 | Reporter: | Michal Nowak <mnowak> | ||||
| Component: | ltrace | Assignee: | Petr Machata <pmachata> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Miloš Prchlík <mprchlik> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | low | ||||||
| Version: | 5.7 | CC: | mfranc, mnewsome, mprchlik, ohudlick | ||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | powerpc | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2013-09-30 22:39:46 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 534243 [details]
Fix
The bug is in ppc-only code. This happens when there are no symbols to trace.
This request was evaluated by Red Hat Product Management for inclusion in the current release of Red Hat Enterprise Linux. Because the affected component is not scheduled to be updated in the current release, Red Hat is unfortunately unable to address this request at this time. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux. This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux release for currently deployed products. This request is not yet committed for inclusion in a release. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2013-1317.html |
Description of problem: In # ltrace /bin/true WARNING: Using e_entry from elf header (0x10000970) for address of "_start" _start(1, 0xff9ef7f4, 0xff9ef7fc, 0xff9ef890, 0xffbf110 <unfinished ...> __libc_start_main(1, 0xff9ef7f4, 0xff9ef7fc, 0xff9ef890, 0xffbf110 <unfinished ...> setlocale(6, "") = "en_US.UTF-8" bindtextdomain("coreutils", "/usr/share/locale") = "/usr/share/locale" textdomain("coreutils") = "coreutils" __cxa_atexit(0x10000d40, 0, 0, 29440, 0x7574696c) = 0 exit(0 <unfinished ...> __fpending(0xff803f8, 0, 0, 0, 0xff810c8) = 0 fclose(0xff803f8) = 0 +++ exited (status 0) +++ there's no puts() event, let's limit ltrace to that call (sic): # ltrace -e puts /bin/true WARNING: Using e_entry from elf header (0x10000970) for address of "_start" Segmentation fault Version-Release number of selected component (if applicable): ltrace-0.5-13.45svn.el5_7.11.ppc64, ltrace-0.5-13.45svn.ppc64 How reproducible: Always. PPC only only, it seems. Actual results: Crash. Expected results: Nothing on ltrace output as well as no crash.