From owner-freebsd-stable@FreeBSD.ORG Tue Aug 3 11:29:21 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2B70C1065676 for ; Tue, 3 Aug 2010 11:29:21 +0000 (UTC) (envelope-from pluknet@gmail.com) Received: from mail-qy0-f175.google.com (mail-qy0-f175.google.com [209.85.216.175]) by mx1.freebsd.org (Postfix) with ESMTP id D32CC8FC1E for ; Tue, 3 Aug 2010 11:29:20 +0000 (UTC) Received: by qyk11 with SMTP id 11so670260qyk.13 for ; Tue, 03 Aug 2010 04:29:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=nOZJfbBGFOQt9Bwo6D0PTDdM0UckHDG2Lh+hIb+OhBM=; b=s4MHbiTkZ3vHWHUsQnXbgPYKMZEFizm1yv3HV76XQb7SidhindcJx5W3K3MgzR930K GCW7t7iVMI66zm9U4G80aNVsCPwmSYTQi3h3OUFIaYNZkm6gCy1wYRbL3oNyE/dmtNQg 3BJyywFdDrx/+2jEpwE7+m0oe1DEyaBfyfAqY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=trb39obhDxfUIfUkiS8qF5b9UDevylnANCUJ1iY2dXivMEE75LJWG4rmtV7/84qBQS A6SbV3XCDDYiwbQy1oTLHq3d9Q11w5GZWGMZMxxiN5xYR9WgoAJGyPdMCmZo+crwMwRN pzipkZdCvrfXnvYPhXv80gSEy4bmwNCqi0Ue4= MIME-Version: 1.0 Received: by 10.224.28.137 with SMTP id m9mr2557557qac.381.1280834959572; Tue, 03 Aug 2010 04:29:19 -0700 (PDT) Received: by 10.229.48.12 with HTTP; Tue, 3 Aug 2010 04:29:19 -0700 (PDT) In-Reply-To: References: Date: Tue, 3 Aug 2010 15:29:19 +0400 Message-ID: From: pluknet To: freebsd-stable Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: Re: uma_ref_cnt: vm_fault: fault on nofault entry X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Aug 2010 11:29:21 -0000 On 8 July 2010 15:34, pluknet wrote: > Hi. > > 8.0-RELEASE under xen h/w mode. > This is the first time I'm seeing this panic (uptime ~2 weeks). > > http://img38.imageshack.us/img38/9681/screenshot1mm.png > Below is transcribed via OCR from a vnc session. > > db> bt^M > Tracing pid 18908 tid 101404 td 0xc93f9Z40^M > kdb_enter(c0c8dceZ,c0c8dceZ,c0cab939,eb0aZ7e4,Z,...) at kdb_entert0x3a > panic(c0cab939,cl4b3000,l,eb0aZ914,eb0aZ904,...) at panict0xl36 > vm_fault(cl490000,cl4b3000,l,0,c76f3400,...) at vm_fault*0xl97 > trap_pfault(80000,eb0aZal0,8538,eb0aZal0,cfeeaaa0,...) at trap_pfaultt0xZ= 0e > trap(eb0aZa30) at trapt0x455 > calltrap() at calltrap=E2=95=950x6^M > -- trap 0XC, eip =3D =C2=A00xc0af336b, esp =3D =C2=A00xeb0aZa70, ebp =3D = =C2=A00xeb0aZa78 ---^M > uma_find_refcnt(cl47a000,c7elc000,3,Z,c7elc000,...) at uma_find_refcntt0x= 5b > mb_ctor_clust(c7elc000,1000,cf87ce00,Z,f8,...) at mb_ctor_clustt0x9c > uma_zalloc_arg(cl47a000,cf87ce00,Z,dd0001,c798Z400,...) at uma_zalIoc_arg= t0x8a > m_getmZ(0,790c,Z,l,0,...) at m_getmZt0xb3 > m_uiotombuf(eb0aZc58,Z,790c,0,0,...) at m_uiotombuf^0x77 > sosend_generic(cf4c44d4,0,eb0a2c58,0,0,...) at sosend_generic*0x525 > sosend(cf4c44d4,0,eb0aZc58,0,0,...) at sosendt0x3f^M > soo_write(d004d508,eb0aZc58,cdd4f600,0,c93f9Z40,...) at soo_uritet0x63 > dofilewrite(eb0aZc58,ffffffff,ffffffff,0,d004d508,...) at dofilewrite*0x9= 7 > kern_writev(c93f9Z40,6,eb0aZc58,eb0aZc78,l,...) at kern_w|titevt0x58 > write(c93f9Z40,eb0aZcf8,c,c0890ce8,46,...) at urite*0x4f > syscall(eb0aZd38) at syscal+0x3Z5 > Xint0x80_syscall() at Xint0x80_syscal+0x20^M > --- syscall (4, FreeBSD ELF3Z, urite), eip =3D =C2=A00xZ85d4Z53, esp =3D > 0xbfbfealc, ebp =3D^M > 0xbfbfea38 --- > The second panic seen today on the same box at uma_find_refcnt(). I'm unsure if it might be caused by Xen hvm setup. db> bt Tracing pid 12 tid 100035 td 0xc776f480 kdb_enter(c0c8dce2,c0c8dce2,c0cab939,c73678b8,0,...) at kdb_enter+0x3a panic(c0cab939,c14b3000,1,c73679e8,c73679d8,...) at panic+0x136 vm_fault(c1490000,c14b3000,1,0,c7a81760,...) at vm_fault+0x197 trap_pfault(c7bb1748,c7367aa0,c7f7e7bf,c7bb1700,c755c7f8,...) at trap_pfault+0x20e trap(c7367b04) at trap+0x455 calltrap() at calltrap+0x6 --- trap 0xc, eip =3D 0xc0af336b, esp =3D 0xc7367b44, ebp =3D 0xc7367b4c --= - uma_find_refcnt(c147f700,cbe96800,1,1,cbe96800,...) at uma_find_refcnt+0x5b mb_ctor_clust(cbe96800,800,c7f2a700,1,c0dd7b40,...) at mb_ctor_clust+0x9c uma_zalloc_arg(c147f700,c7f2a700,1,c776f000,0,...) at uma_zalloc_arg+0x8a igb_get_buf(c0dd6e40,c0dd6e40,c0dd6e40,c7367c38,c08a9d00,...) at igb_get_buf+0x146 igb_rxeof(c775f540,0,0,c775f5c0,c7762a00,...) at igb_rxeof+0x2b0 igb_msix_rx(c7760a00,0,109,e3c02e88,2a1bf,...) at igb_msix_rx+0x29 intr_event_execute_handlers(c755c7f8,c7762a00,c0c8ab0b,4f6,c7762a70,...) at intr_event_execute_handlers+0x14b ithread_loop(c7772930,c7367d38,0,0,0,...) at ithread_loop+0x6b fork_exit(c0861b20,c7772930,c7367d38) at fork_exit+0x91 fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip =3D 0, esp =3D 0xc7367d70, ebp =3D 0 --- --=20 wbr, pluknet