From owner-freebsd-bugs@FreeBSD.ORG Mon Aug 29 07:20:10 2011 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BC7101065670 for ; Mon, 29 Aug 2011 07:20:10 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 9A3328FC17 for ; Mon, 29 Aug 2011 07:20:10 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p7T7KAYE051291 for ; Mon, 29 Aug 2011 07:20:10 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p7T7KAHM051290; Mon, 29 Aug 2011 07:20:10 GMT (envelope-from gnats) Resent-Date: Mon, 29 Aug 2011 07:20:10 GMT Resent-Message-Id: <201108290720.p7T7KAHM051290@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Paul Ambrose Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BEED5106566B for ; Mon, 29 Aug 2011 07:11:21 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id AF2B38FC19 for ; Mon, 29 Aug 2011 07:11:21 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id p7T7BLuu007007 for ; Mon, 29 Aug 2011 07:11:21 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id p7T7BLnM007006; Mon, 29 Aug 2011 07:11:21 GMT (envelope-from nobody) Message-Id: <201108290711.p7T7BLnM007006@red.freebsd.org> Date: Mon, 29 Aug 2011 07:11:21 GMT From: Paul Ambrose To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/160275: dtrace -lv cause X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 29 Aug 2011 07:20:10 -0000 >Number: 160275 >Category: kern >Synopsis: dtrace -lv cause >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: Mon Aug 29 07:20:10 UTC 2011 >Closed-Date: >Last-Modified: >Originator: Paul Ambrose >Release: 9.0-beta2 >Organization: >Environment: [root@lateaxfreebsd ~]# uname -a FreeBSD lateaxfreebsd 9.0-BETA2 FreeBSD 9.0-BETA2 #4 r+c45c70e: Mon Aug 29 14:34:54 CST 2011 root@lateaxfreebsd:/usr/obj/usr/src/sys/MYKERNEL amd64 >Description: dtrace -lv; the output seems all right; but the dmesg has warnings like this: fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! fbt_getargdesc(1302): Unknown function! ctf_lookup_by_id(998): type 2363 exceeds max 2363 ctf_lookup_by_id(998): type 2363 exceeds max 2363 I notice the 'dtrace -l' output has something like this ....................... 19324 syscall freebsd32 #518 entry 19325 syscall freebsd32 #518 return 19326 syscall freebsd32 #519 entry 19327 syscall freebsd32 #519 return 19328 syscall freebsd32 #520 entry 19329 syscall freebsd32 #520 return 19330 syscall freebsd32 #521 entry 19331 syscall freebsd32 #521 return 19332 syscall freebsd32 freebsd32_pselect entry 19333 syscall freebsd32 freebsd32_pselect return 19334 syscall freebsd32 getloginclass entry 19335 syscall freebsd32 getloginclass return 19336 syscall freebsd32 setloginclass entry 19337 syscall freebsd32 setloginclass return 19338 syscall freebsd32 rctl_get_racct entry 19339 syscall freebsd32 rctl_get_racct return 19340 syscall freebsd32 rctl_get_rules entry 19341 syscall freebsd32 rctl_get_rules return 19342 syscall freebsd32 rctl_get_limits entry 19343 syscall freebsd32 rctl_get_limits return 19344 syscall freebsd32 rctl_add_rule entry 19345 syscall freebsd32 rctl_add_rule return 19346 syscall freebsd32 rctl_remove_rule entry 19347 syscall freebsd32 rctl_remove_rule return 19348 syscall freebsd32 freebsd32_posix_fallocate entry 19349 syscall freebsd32 freebsd32_posix_fallocate return 19350 syscall freebsd32 #531 entry 19351 syscall freebsd32 #531 return some of function column of syscall provider is #num, not the function name, I checked the syscalls.c, It seems the warning come from unimplemented syscall(the num is the syscall number), this syscall exists in the syscall table, and dtrace produce relevant probe for it, but these syscall has no implementation, so 'dtrace -lv' found no ctf info plus, on 8.2-stable, the dtrace -lv cause page fault on fbt_getargdesc in fbt.c /* Check if this module hasn't been initialised yet. */ if (*lc.ctfoffp == NULL) { //it seems ctfoffp == NULL /* * Initialise the CTF object and function symindx to * byte offset array. */ if (fbt_ctfoff_init(ctl, &lc) != 0) return; /* Initialise the CTF type to byte offset array. */ if (fbt_typoff_init(&lc) != 0) return; } >How-To-Repeat: dtrace -lv with dtrace enabled; >Fix: >Release-Note: >Audit-Trail: >Unformatted: