From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760956AbZASNjp (ORCPT ); Mon, 19 Jan 2009 08:39:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760244AbZASNiO (ORCPT ); Mon, 19 Jan 2009 08:38:14 -0500 Received: from mout5.freenet.de ([195.4.92.95]:43102 "EHLO mout5.freenet.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760190AbZASNiF (ORCPT ); Mon, 19 Jan 2009 08:38:05 -0500 X-Greylist: delayed 533 seconds by postgrey-1.27 at vger.kernel.org; Mon, 19 Jan 2009 08:38:05 EST From: wolfgang To: linux-kernel@vger.kernel.org Subject: 2.6.28 bug occured during losetup -d /dev/loop0 Date: Mon, 19 Jan 2009 14:29:02 +0100 User-Agent: KMail/1.9.9 MIME-Version: 1.0 Content-Type: Multipart/Mixed; boundary="Boundary-00=_fAIdJLTz760Ltp9" Message-Id: <200901191429.03404.mail@rohrmoser-engineering.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Boundary-00=_fAIdJLTz760Ltp9 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Hi, losetup -d /dev/loop0 was hanging and I got the the messages appended in dmesg.out. I hope this information might be useful. If it happends again I will try to collect more information. regards W. Rohrmoser --Boundary-00=_fAIdJLTz760Ltp9 Content-Type: text/plain; charset="iso 8859-15"; name="ver_linux.out" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="ver_linux.out" If some fields are empty or look unusual you may have an old version. Compare to the current minimal requirements in Documentation/Changes. Linux medion 2.6.28-medion #1 PREEMPT Sun Jan 18 14:45:17 CET 2009 i686 GNU/Linux Gnu C 4.3.2 Gnu make 3.81 binutils 2.18.0.20080103 util-linux 2.13.1.1 mount 2.13.1.1 module-init-tools 3.4 e2fsprogs 1.41.3 reiserfsprogs 3.6.19 PPP 2.4.4 Linux C Library 2.7 Dynamic linker (ldd) 2.7 Procps 3.2.7 Net-tools 1.60 Console-tools 0.2.3 Sh-utils 6.10 udev 125 Modules Loaded loop xt_multiport iptable_filter ip_tables x_tables binfmt_misc nvidia i2c_core ppdev lp nfsd exportfs nfs lockd sunrpc deflate zlib_deflate ctr twofish twofish_common camellia serpent blowfish des_generic cbc aes_i586 aes_generic xcbc rmd160 sha256_generic sha1_generic md5 crypto_null ext3 jbd fuse dm_crypt dm_snapshot dm_mirror dm_region_hash dm_log dm_mod snd_pcm_oss snd_mixer_oss usbhid gspca_zc3xx gspca_main videodev v4l1_compat snd_cmipci snd_pcm snd_page_alloc snd_opl3_lib snd_hwdep snd_mpu401 snd_mpu401_uart snd_seq_midi snd_rawmidi snd_seq_dummy rtc_cmos rtc_core rtc_lib snd_seq_oss snd_seq_midi_event pcspkr snd_seq snd_timer snd_seq_device snd uhci_hcd soundcore ohci_hcd ohci1394 ehci_hcd 8139too mii ieee1394 sym53c8xx scsi_transport_spi usbcore ide_cd_mod fan 8250_pnp 8250 serial_core parport_pc parport thermal processor button thermal_sys intel_agp agpgart --Boundary-00=_fAIdJLTz760Ltp9 Content-Type: text/plain; charset="iso 8859-15"; name="dmesg.out" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="dmesg.out" lp0: using parport0 (interrupt-driven). lp0: console ready ppdev: user-space parallel port driver warning: `avahi-daemon' uses 32-bit capabilities (legacy support in use) nvidia: module license 'NVIDIA' taints kernel. nvidia 0000:01:00.0: PCI INT A -> Link[LNKA] -> GSI 11 (level, low) -> IRQ 11 NVRM: loading NVIDIA Linux x86 Kernel Module 96.43.09 Mon Oct 27 14:23:30 PST 2008 agpgart-intel 0000:00:00.0: AGP 2.0 bridge agpgart-intel 0000:00:00.0: putting AGP V2 device into 4x mode nvidia 0000:01:00.0: putting AGP V2 device into 4x mode ip_tables: (C) 2000-2006 Netfilter Core Team loop: module loaded EXT3-fs warning: maximal mount count reached, running e2fsck is recommended kjournald starting. Commit interval 5 seconds EXT3 FS on dm-0, internal journal EXT3-fs: mounted filesystem with ordered data mode. EXT3-fs warning: maximal mount count reached, running e2fsck is recommended kjournald starting. Commit interval 5 seconds EXT3 FS on dm-0, internal journal EXT3-fs: mounted filesystem with ordered data mode. BUG: unable to handle kernel NULL pointer dereference at 00000004 IP: [] mempool_free+0xa/0x81 *pde = 00000000 Oops: 0000 [#1] PREEMPT last sysfs file: /sys/devices/pci0000:00/0000:00:1e.0/0000:02:00.1/pools Modules linked in: loop xt_multiport iptable_filter ip_tables x_tables binfmt_misc nvidia(P) i2c_core ppdev lp nfsd exportfs nfs lockd sunrpc deflate zlib_deflate ctr twofish twofish_common camellia serpent blowfish des_generic cbc aes_i586 aes_generic xcbc rmd160 sha256_generic sha1_generic md5 crypto_null ext3 jbd fuse dm_crypt dm_snapshot dm_mirror dm_region_hash dm_log dm_mod snd_pcm_oss snd_mixer_oss usbhid gspca_zc3xx gspca_main videodev v4l1_compat snd_cmipci snd_pcm snd_page_alloc snd_opl3_lib snd_hwdep snd_mpu401 snd_mpu401_uart snd_seq_midi snd_rawmidi snd_seq_dummy rtc_cmos rtc_core rtc_lib snd_seq_oss snd_seq_midi_event pcspkr snd_seq snd_timer snd_seq_device snd uhci_hcd soundcore ohci_hcd ohci1394 ehci_hcd 8139too mii ieee1394 sym53c8xx scsi_transport_spi usbcore ide_cd_mod fan 8250_pnp 8250 serial_core parport_pc parport thermal processor button thermal_sys intel_agp agpgart Pid: 27368, comm: loop0 Tainted: P (2.6.28-medion #1) EIP: 0060:[] EFLAGS: 00010286 CPU: 0 EIP is at mempool_free+0xa/0x81 EAX: c75069c0 EBX: 00000000 ECX: 00000000 EDX: 00000000 ESI: c75069c0 EDI: 00101800 EBP: 00000000 ESP: d0a0bf5c DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 Process loop0 (pid: 27368, ti=d0a0a000 task=e36d83b0 task.ti=d0a0a000) Stack: f0f5661a 00000000 c017b558 00000000 f0ebe917 d0a0bfb4 d2b7a908 d2b7a800 c3370480 00001000 00000000 c77b751c f0ebe3ed 00000000 00000001 00000001 00000000 00000000 00000000 d0a0bfb4 00145400 00000000 d2b7a800 c11fa900 Call Trace: [] crypt_endio+0x0/0xc7 [dm_crypt] [] bio_endio+0x27/0x29 [] loop_thread+0x3ac/0x3e2 [loop] [] do_lo_send_aops+0x0/0x17e [loop] [] loop_thread+0x0/0x3e2 [loop] [] kthread+0x36/0x5a [] kthread+0x0/0x5a [] kernel_thread_helper+0x7/0x10 Code: 53 9d 89 e0 25 00 e0 ff ff ff 48 14 f6 40 08 08 74 05 e8 67 c0 17 00 31 c0 83 c4 0c 5b 5e 5f 5d c3 56 53 89 c6 89 d3 85 c0 74 74 <8b> 42 04 3b 02 7d 65 9c 59 fa 89 e0 25 00 e0 ff ff ff 40 14 8b EIP: [] mempool_free+0xa/0x81 SS:ESP 0068:d0a0bf5c ---[ end trace f619812d1cd509ee ]--- --Boundary-00=_fAIdJLTz760Ltp9--