From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jens Axboe Subject: Re: linux-next: Tree for July 15 (bdi warning) Date: Tue, 28 Jul 2009 09:14:59 +0200 Message-ID: <20090728071458.GR4148@kernel.dk> References: <20090715161841.9be17451.sfr@canb.auug.org.au> <200907152041.08025.bzolnier@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from brick.kernel.dk ([93.163.65.50]:58611 "EHLO kernel.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753408AbZG1HO7 (ORCPT ); Tue, 28 Jul 2009 03:14:59 -0400 Content-Disposition: inline In-Reply-To: <200907152041.08025.bzolnier@gmail.com> Sender: linux-next-owner@vger.kernel.org List-ID: To: Bartlomiej Zolnierkiewicz Cc: Stephen Rothwell , linux-next@vger.kernel.org, LKML On Wed, Jul 15 2009, Bartlomiej Zolnierkiewicz wrote: > On Wednesday 15 July 2009 08:18:41 Stephen Rothwell wrote: > > Hi all, > > > > Changes since 20090714: > > Jens, I see the following warning sometimes during disconnect > of usb-storage device, is this anything to be worried about? Yeah, that should not trigger. It essentially means that the device is gone, with dirty data still present.... > ------------[ cut here ]------------ > WARNING: at mm/backing-dev.c:787 bdi_destroy+0x1e/0x4d() > Hardware name: Extensa 2900 > Modules linked in: nls_iso8859_1 nls_cp437 vfat fat usb_storage radeon sco bnep l2cap bluetooth rfkill lib80211_crypt_tkip xt_state ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 acerhk binfmt_misc uinput snd_intel8x0m snd_intel8x0 snd_ac97_codec ipw2200 ac97_bus snd_pcm snd_timer libipw snd soundcore uhci_hcd ehci_hcd parport_pc snd_page_alloc lib80211 parport [last unloaded: scsi_wait_scan] > Pid: 183, comm: khubd Tainted: G M 2.6.31-rc3-next-20090715-03649-g2a49c7b #23 > Call Trace: > [] warn_slowpath_common+0x65/0x7c > [] ? bdi_destroy+0x1e/0x4d > [] warn_slowpath_null+0xd/0x10 > [] bdi_destroy+0x1e/0x4d > [] blk_release_queue+0x38/0x47 > [] kobject_release+0x3f/0x4f > [] ? kobject_release+0x0/0x4f > [] kref_put+0x39/0x42 > [] kobject_put+0x37/0x3c > [] blk_put_queue+0xd/0xf > [] blk_cleanup_queue+0x3d/0x41 > [] scsi_free_queue+0x8/0xa > [] scsi_device_dev_release_usercontext+0xf6/0x12c > [] ? scsi_device_dev_release_usercontext+0x0/0x12c > [] execute_in_process_context+0x1d/0x5b > [] scsi_device_dev_release+0x13/0x15 > [] device_release+0x35/0x5a > [] kobject_release+0x3f/0x4f > [] ? kobject_release+0x0/0x4f > [] kref_put+0x39/0x42 > [] kobject_put+0x37/0x3c > [] put_device+0xf/0x11 > [] __scsi_remove_device+0x61/0x65 > [] scsi_forget_host+0x35/0x51 > [] scsi_remove_host+0x69/0xcd > [] quiesce_and_remove_host+0x4c/0x7e [usb_storage] > [] usb_stor_disconnect+0x13/0x1d [usb_storage] > [] usb_unbind_interface+0x3b/0xa0 > [] __device_release_driver+0x47/0x7f > [] device_release_driver+0x18/0x23 > [] bus_remove_device+0x7f/0x8c > [] device_del+0xf0/0x127 > [] usb_disable_device+0x61/0xbf > [] usb_disconnect+0x7e/0xda > [] hub_thread+0x30f/0xad5 > [] ? autoremove_wake_function+0x0/0x2f > [] ? complete+0x34/0x3e > [] ? hub_thread+0x0/0xad5 > [] kthread+0x66/0x6b > [] ? kthread+0x0/0x6b > [] kernel_thread_helper+0x7/0x10 > ---[ end trace d1600192f6c800d2 ]--- -- Jens Axboe