From owner-freebsd-current@FreeBSD.ORG Mon May 26 09:11:37 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7442437B401 for ; Mon, 26 May 2003 09:11:37 -0700 (PDT) Received: from gravy.homeunix.net (pool-151-197-48-53.phil.east.verizon.net [151.197.48.53]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9DD6C43F3F for ; Mon, 26 May 2003 09:11:36 -0700 (PDT) (envelope-from bleez@verizon.net) Received: from gravy.homeunix.net (gravy.homeunix.net [192.168.1.2]) by gravy.homeunix.net (8.12.9/8.12.9) with ESMTP id h4QGBZ3o000496 for ; Mon, 26 May 2003 12:11:35 -0400 (EDT) (envelope-from bleez@verizon.net) Date: Mon, 26 May 2003 12:11:35 -0400 (EDT) From: Bryan Liesner To: freebsd-current@freebsd.org Message-ID: <20030526120106.S488@gravy.homeunix.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Subject: panic since changes to kern_umtx.c X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 26 May 2003 16:11:37 -0000 The change from kern_umtx.c rev 1.2 to 1.3 brought out the following panic on my system. The panic does not occur if I revert back to 1.2 or if I turn off my USB hard drive (uses EHCI) and run with rev 1.3 Fatal trap 12: page fault while in kernel mode fault virtual address = 0x0 fault code = supervisor read, page not present instruction pointer = 0x8:0xc0135b0a7 stack pointer = 0x10:0xd68f2c48 frame pointer = 0x10:0xd68f2c64 code segment = base 0x0 limit 0xffff, type 0x1b processor eflags = interrupt enabled, resume, IOPL=0 current process = 12 (swi7: tty:sio clock) trap number = 12 panic page fault DDB says it was in heap_up+0x27 ... (kgdb) l *heap_up+0x27 0xc0136be7 is in heap_up (../../../cam/cam_queue.c:345). 340 * equal too, or greater than j respectively. 341 */ 342 static __inline int 343 queue_cmp(cam_pinfo **queue_array, int i, int j) 344 { 345 if (queue_array[i]->priority == queue_array[j]->priority) 346 return ( queue_array[i]->generation 347 - queue_array[j]->generation ); 348 else 349 return ( queue_array[i]->priority (kgdb) 350 - queue_array[j]->priority ); 351 } 352 353 /* 354 * swap: Given an array of cam_pinfo* elements and indexes i and j, 355 * exchange elements i and j. 356 */ 357 static __inline void 358 swap(cam_pinfo **queue_array, int i, int j) 359 { -- ============================================================= = Bryan D. Liesner LeezSoft Communications, Inc. = = A subsidiary of LeezSoft Inc. = = bleez@verizon.net Home of the Gipper = =============================================================