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[Bug translator/4066] New: hist_linear() with large H value crashes system
- From: "mmlnx at us dot ibm dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 16 Feb 2007 21:39:03 -0000
- Subject: [Bug translator/4066] New: hist_linear() with large H value crashes system
- Reply-to: sourceware-bugzilla at sourceware dot org
I was writing a simple script that uses hist_linear() and decided to pass it a
ridiculously large H value to see what happens. To my surprise, it crashed the
system.
Here's the script:
global reads
probe netdev.receive { reads <<< length }
probe end { print (@hist_linear(reads, 0, 300000000000, 50)) }
I tried the script on ppc64 and x86 running SLES10 SP1 and x86_64 running RHEL5
RC1 and the latest FC5 kernel. I tried the SLES10 SP1, RHEL5 RC1 and CVS
versions of systemtap. All crashed. I suspect there's a problem in
_stp_stat_init(). More details to follow.
--
Summary: hist_linear() with large H value crashes system
Product: systemtap
Version: unspecified
Status: NEW
Severity: critical
Priority: P2
Component: translator
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: mmlnx at us dot ibm dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=4066
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