bin/167361: pmcstat crashed if symbols found (striped image)
>Number: 167361
>Category: bin
>Synopsis: pmcstat crashed if symbols found (striped image)
>Confidential: no
>Severity: non-critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Apr 27 12:30:11 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator: Slawa Olhovchenkov
>Release: 10-CURRENT
>Organization:
>Environment:
FreeBSD 10.0-CURRENT FreeBSD 10.0-CURRENT #18: Tue Apr 24 16:42:14 MSK 2012 root@:/usr/obj/usr/src/sys/NETMAP amd64
>Description:
pmcstat try to load symbols from striped files and crashed at pmcstat_log.c:592 (symptr is NULL).
>How-To-Repeat:
Run pmcstat on system with striped world.
>Fix:
patch pmcstat_log.c
Patch attached with submission follows:
--- pmcstat_log.c.orig 2012-04-27 15:50:05.000000000 +0400
+++ pmcstat_log.c 2012-04-27 15:50:56.000000000 +0400
@@ -565,6 +565,8 @@
image->pi_symcount += newsyms;
assert(newsyms <= nfuncsyms);
+ if(image->pi_symcount == 0)
+ return;
/*
* Return space to the system if there were duplicates.
>Release-Note:
>Audit-Trail:
>Unformatted:
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