Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756553Ab0LISHN (ORCPT ); Thu, 9 Dec 2010 13:07:13 -0500 Received: from claw.goop.org ([74.207.240.146]:59209 "EHLO claw.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752971Ab0LISHM (ORCPT ); Thu, 9 Dec 2010 13:07:12 -0500 Message-ID: <4D011ACE.2020501@goop.org> Date: Thu, 09 Dec 2010 10:07:10 -0800 From: Jeremy Fitzhardinge User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.12) Gecko/20101103 Fedora/1.0-0.33.b2pre.fc14 Lightning/1.0b3pre Thunderbird/3.1.6 MIME-Version: 1.0 To: =?ISO-8859-1?Q?Pasi_K=E4rkk=E4inen?= CC: Vasiliy G Tolstov , Stefano Stabellini , "xen-devel@lists.xensource.com" , "Jeremy@ikiaikainen.iki.fi" , "linux-kernel@vger.kernel.org" Subject: Re: [Xen-devel] [PATCH 0/2] Xen PV on HVM multiple PV consoles References: <1291236234.22027.0.camel@mobile> <1291404900.5298.15.camel@mobile> <1291640614.32324.85.camel@work.selfip.ru> <1291892412.30565.3.camel@vase> <20101209121259.GQ2754@reaktio.net> In-Reply-To: <20101209121259.GQ2754@reaktio.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5024 Lines: 121 On 12/09/2010 04:12 AM, Pasi K?rkk?inen wrote: > On Thu, Dec 09, 2010 at 02:00:12PM +0300, Vasiliy G Tolstov wrote: >> On Tue, 2010-12-07 at 10:30 +0000, Stefano Stabellini wrote: >>> On Mon, 6 Dec 2010, Vasiliy G Tolstov wrote: >>>> On Mon, 2010-12-06 at 10:36 +0000, Stefano Stabellini wrote: >>>> >>>>> Could you please add CONFIG_DEBUG_INFO=y to your kernel config, so that >>>>> we can see the name of the functions in the stack trace? >>>>> >>>> After add debug kernel not crushed. I'm test more expensive it now. Can >>>> You provide ps auxwww | grep qemu-dm after creating domain with two >>>> serial consoles? (sles does not have libxl, i want to write now wrapper >>>> to qemu-dm, after that try to compile rpm from spec to support libxl). >>>> >>> There is no need for any special command line arguments to qemu-dm, it >>> is going to create as many PV serials as configured on xenstored by >>> libxl, give a look at tools/libxl/libxl.c:libxl_device_console_add. >>> The output of the serial is the one specified on the node "output" on >>> xenstore. >> I reproduce kernel crush: >> > You need to enable debugging options in your kernel so we can see function > names in the trace. That's a Xen-generated dump, so that's the best you're going to get for now. Vasiliy, you'll need to use System.map or gdb to convert the RIP to a Linux symbol, and ideally go through the stack dump and see if you can construct a backtrace. (Dear lazyweb: there ought to be a program/script which can take a Xen dump and convert the addresses to symbols like ksymoops used to do. Somethat that can reformat a Xen dump to a kernel oops for ksymoops would be a good first step.) J > -- Pasi > >> With attached config file kernel from jeremy stable-2.6.32.x boot ok and >> noisy debug info >> If i compile with this config from You branch stable-2.6.32-pvconsole >> kernel crushed. Nothing displays. Only xm dmesg says: >> >> (XEN) d47:v0: unhandled page fault (ec=0000) >> (XEN) Pagetable walk from 0000000000000010: >> (XEN) L4[0x000] = 000000083870a027 00000000000013f9 >> (XEN) L3[0x000] = 0000000000000000 ffffffffffffffff >> (XEN) domain_crash_sync called from entry.S >> (XEN) Domain 47 (vcpu#0) crashed on cpu#15: >> (XEN) ----[ Xen-4.0.0_21091_06-0.2.1 x86_64 debug=n Not tainted ]---- >> (XEN) CPU: 15 >> (XEN) RIP: e019:[<00000000c10aaa3f>] >> (XEN) RFLAGS: 0000000000000246 EM: 1 CONTEXT: pv guest >> (XEN) rax: 0000000000000000 rbx: 00000000c146f5a0 rcx: >> 00000000c1445298 >> (XEN) rdx: 0000000000000000 rsi: 0000000000008000 rdi: >> 0000000000000000 >> (XEN) rbp: 00000000c13f7e60 rsp: 00000000c13f7e34 r8: >> 0000000000000000 >> (XEN) r9: 0000000000000000 r10: 0000000000000000 r11: >> 0000000000000000 >> (XEN) r12: 0000000000000000 r13: 0000000000000000 r14: >> 0000000000000000 >> (XEN) r15: 0000000000000000 cr0: 000000008005003b cr4: >> 00000000000026f0 >> (XEN) cr3: 000000083fe24000 cr2: 0000000000000010 >> (XEN) ds: e021 es: e021 fs: 00d8 gs: 0000 ss: e021 cs: e019 >> (XEN) Guest stack trace from esp=c13f7e34: >> (XEN) 00000000 c10aaa3f 0001e019 00010046 c10392d6 c1445298 c11d0e17 >> 00000004 >> (XEN) c146f5a0 00000000 c14b0cd9 c13f7e70 c11d0e17 c146f5a0 00000000 >> c13f7e78 >> (XEN) c11d0ed4 c13f7e98 c103936f c14b0cc8 004b0cc0 00000000 c14b0cd9 >> 00000000 >> (XEN) c14b0cd9 c13f7ea8 c1495868 c14d215c c14b0ccd c13f7ebc c148541b >> c14b0ccd >> (XEN) fffffffe 00000000 c13f7ef8 c1048703 c13f7ef8 00000000 c137df19 >> 00000000 >> (XEN) 0000000f 00000000 00000000 00000000 c14b0cd9 c14b0cdd 00000000 >> c1480f40 >> (XEN) c1481900 c13f7f08 c14851fd 00000000 c14853d2 c13f7f10 c14853c6 >> c13f7f94 >> (XEN) c148a282 c13f7f20 c13f7fa4 00000000 c104e01e 00000005 00000000 >> 00000000 >> (XEN) 00000000 00000000 00000098 205b7f4c 30202020 3030302e 5d303030 >> c1050020 >> (XEN) c13f7f78 c1bb60d0 c13f7f68 00000024 00000000 c1bb60c0 c1bb5884 >> c1394221 >> (XEN) 00000000 c13f7fdc 00000000 c13f7f94 c10392f6 00000000 c13f7fdc >> 00000000 >> (XEN) c13f7fac c148562f c137e0bc c12b2020 c14b2c60 00000000 c13f7fb8 >> c14850a2 >> (XEN) c21f8000 c13f7ffc c1487d4a 00000000 00000000 00000000 00000000 >> 00000000 >> (XEN) 00000000 00000000 1f898975 80980201 10100800 000106a5 00000000 >> 00000000 >> (XEN) c21f8000 00000000 00000000 >> (XEN) cpupool_rm_domain(dom=47,pool=0) n_dom 1 >> (XEN) mm.c:2562:d0 Unknown domain '47' >> (XEN) mm.c:2562:d0 Unknown domain '47' >> (XEN) mm.c:2562:d0 Unknown domain '47' >> (XEN) mm.c:2562:d0 Unknown domain '47' >> >> >> >> -- >> Vasiliy G Tolstov >> Selfip.Ru >> >> >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@lists.xensource.com >> http://lists.xensource.com/xen-devel -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/