kern/170630: garbled syslog messages

[Frederique Rijsdijk]

>Number:         170630
>Category:       kern
>Synopsis:       garbled syslog messages
>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:   Tue Aug 14 09:10:10 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator:     Frederique Rijsdijk
>Release:        7.4, 8.x, 9.x, 32-bit, 64-bit
>Organization:
Net Ground B.V.
>Environment:
FreeBSD srv01.server.nl 8.1-RELEASE-p6 FreeBSD 8.1-RELEASE-p6 #0: Wed Nov 23 15:41:03 CET 2011     root at srv01.server.nl:/usr/obj/usr/src/sys/GENERIC-QUOTA  amd64

FreeBSD srv02.server.nl 7.4-RELEASE-p3 FreeBSD 7.4-RELEASE-p3 #0: Tue Sep 27 14:47:23 UTC 2011     root at i386-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  i386

FreeBSD srv03.server.nl 8.3-RELEASE-p3 FreeBSD 8.3-RELEASE-p3 #0: Tue Jun 12 00:39:29 UTC 2012     root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  amd64

FreeBSD srv04.server.nl 8.1-RELEASE-p5 FreeBSD 8.1-RELEASE-p5 #0: Tue Sep 27 16:49:00 UTC 2011     root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  amd64

>Description:
I see these kind of 'garbled' logging on various servers, various versions and archs:

<<1110>10>iippffww::  65600 500A cAccecpetp tU DP U8D7.P2 5807..125404..61i4:p4f49w5:.0 69 :6865020.68043 .2A4c3 c6e.p82t01 .U28D4:P.5 23837 6.o.2ut52 01v2i:.5a13 4 4io.g6ubt0 :

<<<11101>110i0>a1> pi7fg6b9w0 :

<<111010> >0.8645.0203 6Ac.c2ep1t 2U:5D3P  8ou7t .v2i5a0. 1i4g4b.06

<<1101>1i0>pifpwf:w : 68006 80D0 eDneyn y UUDDPP  119944..113344..4411..1122::560877110  8877..225500..114444..1100::5533  iinn  vviiaa  iiggbb00

<<110>1710>.295:02.11 4i4n. 1v0i:a2 1i gibn0 


>How-To-Repeat:
No idea honstly, also cannot find a common factor for this issue. But almost every admin has seen it I think. I've seen them as long as I can remember.
>Fix:
Some have suggested to compile this into the kernel:

options         PRINTF_BUFR_SIZE=128

. but I'd rather keep running GENERIC kernels (freebsd-update)

>Release-Note:
>Audit-Trail:
>Unformatted: