Date: Sat, 24 Dec 2011 15:40:09 -1000 From: Jan Beich <jbeich@tormail.net> To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/163602: pmcstat(8) doesn't search symbols under /boot/modules Message-ID: <1Red4a-0004CK-Ue@internal.tormail.net> Resent-Message-ID: <201112250150.pBP1oA2q003885@freefall.freebsd.org>
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>Number: 163602 >Category: bin >Synopsis: pmcstat(8) doesn't search symbols under /boot/modules >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Dec 25 01:50:10 UTC 2011 >Closed-Date: >Last-Modified: >Originator: Jan Beich >Release: FreeBSD 10.0-CURRENT amd64 >Organization: >Environment: >Description: pmcstat(8) should search under /boot/modules by default as that is the place kernel modules are installed by ports/ framework. It could be implemented similar to kldload(8) as a semicolon-separated list of paths to search with default being kern.module_path sysctl. >How-To-Repeat: $ sudo pmcstat -S instructions -O /tmp/all.pmc ^C $ pmcstat -R /tmp/all.pmc -G all.graph pmcstat: WARNING: Cannot determine the type of "/boot/kernel/nvidia.ko". pmcstat: WARNING: Cannot determine the type of "/boot/kernel/uvhid.ko". pmcstat: WARNING: Cannot determine the type of "unknown". pmcstat: WARNING: Cannot determine the type of "/usr/local/bin/sudo". [...] CONVERSION STATISTICS: #exec/elf 9 #samples/total 10915 #samples/unknown-function 566 #callchain/dubious-frames 62 $ grep '_nv.*rm' all.graph | sort -rk1 | head Exit 1 >Fix: A known workaround: $ cd /boot/kernel $ ln -s ../modules/*.ko* . >Release-Note: >Audit-Trail: >Unformatted:
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