Date: Thu, 8 Oct 2009 11:57:00 GMT From: Alexander Zagrebin <alexz@visp.ru> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/139425: Wrong behavior of KTR_VERBOSE Message-ID: <200910081157.n98Bv0Ds085674@www.freebsd.org> Resent-Message-ID: <200910081200.n98C0BbP082198@freefall.freebsd.org>
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>Number: 139425
>Category: kern
>Synopsis: Wrong behavior of KTR_VERBOSE
>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: Thu Oct 08 12:00:11 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator: Alexander Zagrebin
>Release: FreeBSD 8.0-RC1
>Organization:
>Environment:
FreeBSD xxxxxxx 8.0-RC1 FreeBSD 8.0-RC1 #5: Fri Oct 2 23:10:02 MSD 2009 alex@xxxxxxx:/usr/src/sys/i386/compile/KERNEL i386
>Description:
ktr(4) says, that KTR_VERBOSE option only sets the default value for the debug.ktr.verbose environment variable.
But really debug.ktr.verbose is not available without this option.
So behavior of the KTR_VERBOSE differs from behavior, described in the manual page.
>How-To-Repeat:
Add "options KTR" to the kernel config; recompile kernel; reboot
# sysctl debug.ktr.verbose
sysctl: unknown oid 'debug.ktr.verbose'
Add "options KTR_VERBOSE" to the kernel config; recompile kernel; reboot
# sysctl debug.ktr.verbose
debug.ktr.verbose: 0
>Fix:
It depends :)
Or /usr/src/sys/kern/kern_ktr.c or ktr(4) manual page have to be fixed
May be:
--- kern_ktr.c.orig 2009-09-30 09:31:37.000000000 +0400
+++ kern_ktr.c 2009-10-08 15:52:02.000000000 +0400
@@ -124,9 +124,11 @@
#ifdef KTR_VERBOSE
int ktr_verbose = KTR_VERBOSE;
+#else
+int ktr_verbose = 0;
+#endif
TUNABLE_INT("debug.ktr.verbose", &ktr_verbose);
SYSCTL_INT(_debug_ktr, OID_AUTO, verbose, CTLFLAG_RW, &ktr_verbose, 0, "");
-#endif
#ifdef KTR_ALQ
struct alq *ktr_alq;
>Release-Note:
>Audit-Trail:
>Unformatted:
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