Date: Fri, 28 Dec 2007 02:57:47 -0800 (PST) From: Brian O'Shea <b_oshea@yahoo.com> To: freebsd-questions@freebsd.org Subject: buildkernel with INVARIANTS, WITNESS, DEBUG_LOCKS, etc. fails Message-ID: <276958.21567.qm@web39510.mail.mud.yahoo.com>
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Hello FreeBSD developers, Building a FreeBSD 6.2-RELEASE kernel on an Intel Pentium 4 with the following config options causes buildkernel to fail with undefined references to stack_save, stack_zero, and stack_print functions: makeoptions DEBUG=-g options INVARIANTS options INVARIANT_SUPPORT options WITNESS options DEBUG_LOCKS options DEBUG_VFS_LOCKS options DIAGNOSTIC Am I just omitting an option that causes this code to be linked correctly, or alternatively is there a workaround for this? I followed the instructions from the following developers handbook page on debugging deadlocks: http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-deadlocks.html Below I have included as much information as I can think of that would be relevant to this problem. Please let me know if you would like me to provide any more information. Regards, -brian Output from uname -a : FreeBSD apsara.hsd1.ca.comcast.net. 6.2-RELEASE FreeBSD 6.2-RELEASE #1: Fri Nov 9 00:08:34 PST 2007 root@apsara.hsd1.ca.comcast.net.:/usr/obj/usr/src/sys/APSARA i386 CPU information from dmesg: CPU: Intel(R) Pentium(R) 4 CPU 1.80GHz (1796.95-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0xf24 Stepping = 4 Features=0x3febfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,C MOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM> Relevant (non-comment) diffs between a kernel config that bulids (APSARA) and one that doesn't (APSARA-DEBUG) included below: 23c22 < ident APSARA --- > ident APSARA-DEBUG 28c27,38 < #makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols --- > makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols > # > # The following options have been set in an attempt to track down the > # problem with the snd_cmi driver, which causes the system to hang if > # it is used to play audio content: > # > options INVARIANTS > options INVARIANT_SUPPORT > options WITNESS > options DEBUG_LOCKS > options DEBUG_VFS_LOCKS > options DIAGNOSTIC Relevant error messages from make buildkernel (with KERNCONF set to APSARA-DEBUG) included below: linking kernel.debug kern_lock.o(.text+0x15d): In function `lockmgr': /usr/src/sys/kern/kern_lock.c:176: undefined reference to `stack_save' kern_lock.o(.text+0x26c):/usr/src/sys/kern/kern_lock.c:223: undefined reference to `stack_save' kern_lock.o(.text+0x4c4):/usr/src/sys/kern/kern_lock.c:306: undefined reference to `stack_save' kern_lock.o(.text+0x5f9):/usr/src/sys/kern/kern_lock.c:365: undefined reference to `stack_save' kern_lock.o(.text+0x737):/usr/src/sys/kern/kern_lock.c:410: undefined reference to `stack_save' kern_lock.o(.text+0x95d): In function `lockinit': /usr/src/sys/kern/kern_lock.c:504: undefined reference to `stack_zero' kern_lock.o(.text+0xae3): In function `lockmgr_printinfo': /usr/src/sys/kern/kern_lock.c:596: undefined reference to `stack_print' *** Error code 1 Stop in /usr/obj/usr/src/sys/APSARA-DEBUG. *** Error code 1 Stop in /usr/src. *** Error code 1 Stop in /usr/src. ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping
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