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From devnull@lkml.org Tue May 28 09:48:19 2024 Received: from lml.valinux.com (postfix@lml.valinux.com [198.186.203.19]) by herbie.ucs.indiana.edu (8.9.3/8.9.3) with ESMTP id HAA12158 for ; Mon, 28 Feb 2000 07:18:05 -0500 (EST) Received: from vger.rutgers.edu (vger.rutgers.edu [128.6.190.2]) by lml.valinux.com (Postfix) with ESMTP id 305E0596FF; Mon, 28 Feb 2000 04:17:49 -0800 (PST) Received: by vger.rutgers.edu via listexpand id ; Mon, 28 Feb 2000 03:03:53 -0500 Received: by vger.rutgers.edu id ; Mon, 28 Feb 2000 03:02:43 -0500 Received: from olympus.home.ict.nl ([193.79.216.19]:1460 "EHLO olympus.home.ict.nl") by vger.rutgers.edu with ESMTP id convert rfc822-to-8bit; Mon, 28 Feb 2000 02:52:08 -0500 Received: from ict.nl (IDENT:jorg@ldn51-63.Leiden.NL.net [193.79.255.154]) by olympus.home.ict.nl (8.9.0/8.9.3) with ESMTP id NAA30557 for ; Mon, 28 Feb 2000 13:16:12 +0100 Message-Id: <38BA6428.99FAA4A2@ict.nl> Date: Mon, 28 Feb 2000 13:03:52 +0100 From: Jorg de Jong X-Mailer: Mozilla 4.7 [en] (X11; I; Linux 2.3.46 i686) X-Accept-Language: en Mime-Version: 1.0 To: linux-kernel@vger.rutgers.edu Subject: oops while mounting loopback cdrom image Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8BIT Sender: owner-linux-kernel@vger.rutgers.edu Precedence: bulk X-Loop: majordomo@vger.rutgers.edu X-Orcpt: rfc822;linux-kernel-outgoing-dig Hi, Would like to report an Oops. I am using kernel 2.3.46 and I did this to generate the problem: [root] /root > losetup /dev/loop0 /tmp/test.iso [root] /root > mount /dev/loop0 /mnt/loop Segmentation fault As you can see I made a typo in the mount command, should have been mount /dev/loop0 /mnt/test.iso. And the decoded oops message: ksymoops 2.3.3 on i686 2.3.46. Options used -V (default) -k /proc/ksyms (default) -l /proc/modules (default) -o /lib/modules/2.3.46/ (default) -m /usr/src/linux/System.map (default) Warning: You did not tell me where to find symbol information. I will assume that the log matches the kernel and modules that are running right now and I'll use the default options above for symbol resolution. If the current kernel and/or modules do not match the log, you can get more accurate output by telling me the kernel version and where to find map, modules, ksyms etc. ksymoops -h explains the options. Warning (compare_ksyms_lsmod): module ov511 is in lsmod but not in ksyms, probably no symbols exported Warning (compare_maps): ksyms_base symbol NS8390_init_R__ver_NS8390_init not found in System.map. Ignoring ksyms_base entry Warning (compare_maps): ksyms_base symbol ei_close_R__ver_ei_close not found in System.map. Ignoring ksyms_base entry Warning (compare_maps): ksyms_base symbol ei_interrupt_R__ver_ei_interrupt not found in System.map. Ignoring ksyms_base entry Warning (compare_maps): ksyms_base symbol ei_open_R__ver_ei_open not found in System.map. Ignoring ksyms_base entry Warning (compare_maps): ksyms_base symbol ethdev_init_R__ver_ethdev_init not found in System.map. Ignoring ksyms_base entry Feb 28 12:36:37 ida kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000000 Feb 28 12:36:37 ida kernel: c88cb847 Feb 28 12:36:37 ida kernel: *pde = 00000000 Feb 28 12:36:37 ida kernel: Oops: 0000 Feb 28 12:36:37 ida kernel: CPU: 0 Feb 28 12:36:37 ida kernel: EIP: 0010:[] Using defaults from ksymoops -t elf32-i386 -a i386 Feb 28 12:36:37 ida kernel: EFLAGS: 00010046 Feb 28 12:36:37 ida kernel: eax: 00000000 ebx: 00000000 ecx: 00000000 edx: c44fad08 Feb 28 12:36:37 ida kernel: esi: c40e7800 edi: c4468550 ebp: c032a978 esp: c3c7fc98 Feb 28 12:36:37 ida kernel: ds: 0018 es: 0018 ss: 0018 Feb 28 12:36:37 ida kernel: Process mount (pid: 1140, stackpage=c3c7f000) Feb 28 12:36:37 ida kernel: Stack: 00000282 c033cd88 c4468550 c4468500 00000003 00000400 00000000 00000009 Feb 28 12:36:37 ida kernel: c3c61800 c3ce5400 00000400 00000400 00000000 c01a6720 c033cd88 00000000 Feb 28 12:36:37 ida kernel: c012d1e3 c033cd88 00000001 c3c7fe9c c4468500 c4468500 c3c7fd24 c3c7fd24 Feb 28 12:36:37 ida kernel: Call Trace: [generic_unplug_device+28/36] [__wait_on_buffer+355/476] [block_read+1115/1280] [] [] [] [] Feb 28 12:36:37 ida kernel: Code: 8b 10 89 6a 04 89 55 00 89 45 04 89 28 6a 01 eb 40 8b 44 24 >>EIP; c88cb847 <[loop]do_lo_request+347/3b0> <===== Code; c88cb847 <[loop]do_lo_request+347/3b0> 00000000 <_EIP>: Code; c88cb847 <[loop]do_lo_request+347/3b0> <===== 0: 8b 10 movl (%eax),%edx <===== Code; c88cb849 <[loop]do_lo_request+349/3b0> 2: 89 6a 04 movl %ebp,0x4(%edx) Code; c88cb84c <[loop]do_lo_request+34c/3b0> 5: 89 55 00 movl %edx,0x0(%ebp) Code; c88cb84f <[loop]do_lo_request+34f/3b0> 8: 89 45 04 movl %eax,0x4(%ebp) Code; c88cb852 <[loop]do_lo_request+352/3b0> b: 89 28 movl %ebp,(%eax) Code; c88cb854 <[loop]do_lo_request+354/3b0> d: 6a 01 pushl $0x1 Code; c88cb856 <[loop]do_lo_request+356/3b0> f: eb 40 jmp 51 <_EIP+0x51> c88cb898 <[loop]do_lo_request+398/3b0> Code; c88cb858 <[loop]do_lo_request+358/3b0> 11: 8b 44 24 00 movl 0x0(%esp,1),%eax 7 warnings issued. Results may not be reliable.rainram ramsrantrareratarattrawerba'rcvsre-ere-ereacrealreapreatrec.recereclrecorecorecorecsred rederediredureemref'reforefuregdregrrehoreinreinrelareliremaremorendrenurep'repereplreprreq.rescresiresprestretaretrretrrevareverevireworheirhomribbrickrienrighringripsriveroadroborocsroisromaroomroserothrougrounrowirsvprubirue rumbrun-ruperutss.a.sabosacrsae'sag'sailsalesalosalvsamusandsao'sarasashsatisaudsavisawhsba'scalscarscepschlschosciescooscotscrescroscudsd seabsearsebusecosecusedusegoseizselfselfselfselfselfselfsemisemisemisemisenesentsepuseresermservsettsevesexisgt shakshansharshebshelshibshipshitshooshorshorshowshrishutsiccsidesidssignsilksimosinesinisir sit-six-sixtskeiskilskivskylslanslaysleuslipslouslugsma'smassmogsmp'snapsnipsnowsnubsoarsocisodssoilsolisolusomesonnsoposortsounsoutsoutsoydspanspawspecspelsphaspilspitspluspoospraspudsql'squisrn'st.estagstalstanstarstatsteasteistepstersticstilstmtstocstonstorstrastrastrestristrostrystumsty sub-subdsubjsubmsubrsubssubusucrsuffsukisulpsumosunfsuntsupesupesuppsur surmsurtsusssvgsswarsweeswimswoosyllsynasynesysttabatachtafftailtaletalltametangtap'taritasktauttaxitea-tearteddteflteleteletemptenatenetepetermterrtesttetrtgifthavtheothertherthicthiothirthorthrethrothumthystidbtifftilltimetinctip tisstitttnt'toddtoiltombtongtoottopitorbtorttotetoultowltoy tradtraitrantrantrantrantrautreatrentriatridtriltriptroctrottructrustsartubetugbtumutuppturkturttututweltwidtwo-tydftypiu's udc ukulultiululuna unadunanunasunawunbluncaunchuncouncouncoundaundeundeundeundeundeundeundiundiuneaunenunetunfaunfiunfounglunhaunhounifuninuniounivunlaunliunmaunmounobunosunpiunprunprunreunreunreunsaunscunshunsnunstunsuuntauntounusunweunyiupbrupi'upraupswurchurolusanusheusx utlauzbevaccvaguvallvan-vapovarnvat'vcr'vegevelvveniverbverivertvetevhf vibrvickvidevignvin'violvirovisivivavms voidvoltvoravoyevulgw.w.waffwaiswallwanewardwarnwashwaspwatewatewaxywe'lweatwedgweigwellwerewetlwhatwherwhicwhirwhitwho'whorwidewig'wiliwimbwindwiniwipiwistwitswoebwomawoodwoolworkworlwortwpc'wrecwritwt'swysixenixt'syak'yarnyeasyestyob'yorkyt'sz-axzealzeuszipszs émig -- Jorg de Jong Work : mailto:jorg.de.jong@ict.nl Play : mailto:j.e.s.de.jong@freeler.nl - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/