From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755504AbZEEFq0 (ORCPT ); Tue, 5 May 2009 01:46:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752779AbZEEFqR (ORCPT ); Tue, 5 May 2009 01:46:17 -0400 Received: from mail-bw0-f174.google.com ([209.85.218.174]:65071 "EHLO mail-bw0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752680AbZEEFqQ convert rfc822-to-8bit (ORCPT ); Tue, 5 May 2009 01:46:16 -0400 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 :cc:content-type:content-transfer-encoding; b=NttJYY55uyA/ja8OCZm/CHVJjjED5Bn9QXOyb+bK/mQTW5MvFf4oSt5Z76ISCXBzdn aletQ7+4uKWRlTFNBUF56RLyI8QxCO1KqbkI/073VO+n80Y5Sm3KtYaUoBkrr8ziw62a tbrPleAFhzgg5s3519zbxPxsRf0j4mvGKQJho= MIME-Version: 1.0 In-Reply-To: References: <20090428172845R.fujita.tomonori@lab.ntt.co.jp> <20090428184431Z.fujita.tomonori@lab.ntt.co.jp> Date: Tue, 5 May 2009 10:46:16 +0500 Message-ID: Subject: Re: [Bug #13001] PCI-DMA: Out of IOMMU space From: =?UTF-8?B?0JTQsNC90LjQu9CwINCW0YPQutC+0YbQutC40Lk=?= To: adam radford Cc: Grant Grundler , FUJITA Tomonori , rjw@sisk.pl, linux-kernel@vger.kernel.org, kernel-testers@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Full dmesg there: http://bugzilla.kernel.org/attachment.cgi?id=21222 Got this: ------------[ cut here ]------------ WARNING: at fs/namei.c:1251 lookup_one_len+0xe9/0x100() Hardware name: HP xw9400 Workstation Modules linked in: fuse nfs auth_rpcgss lockd sunrpc scsi_wait_scan usbhid ohci_hcd usb_storage usb_libusual ehci_hcd usbcore Pid: 2717, comm: mount Not tainted 2.6.30-rc4-git1 #1 Call Trace: [] ? warn_slowpath+0xea/0x160 [] ? printk+0x4e/0x58 [] ? prepare_error_buf+0x51a/0x610 [] ? new_slab+0x1ee/0x330 [] ? reiserfs_info+0x71/0xa0 [] ? lookup_one_len+0xe9/0x100 [] ? reiserfs_xattr_init+0x3d/0xb0 [] ? reiserfs_fill_super+0x663/0xb50 [] ? __down_write_nested+0xb2/0xc0 [] ? kmem_cache_alloc+0x65/0xa0 [] ? sget+0x3c2/0x410 [] ? get_sb_bdev+0x174/0x1a0 [] ? reiserfs_fill_super+0x0/0xb50 [] ? vfs_kern_mount+0x56/0xd0 [] ? do_kern_mount+0x53/0x120 [] ? do_mount+0x2ba/0x8c0 [] ? bad_gs+0xc34/0x1e0c [] ? sys_mount+0xcd/0x100 [] ? system_call_fastpath+0x16/0x1b ---[ end trace 93edef2de057a0ed ]--- and ------------[ cut here ]------------ WARNING: at lib/dma-debug.c:625 check_unmap+0x3b3/0x610() Hardware name: HP xw9400 Workstation forcedeth 0000:00:09.0: DMA-API: device driver frees DMA memory with wrong function [device address=0x0000000023780c02] [size=42 bytes] [mapped as single] [unmapped as page] Modules linked in: nfsd exportfs iptable_filter iptable_mangle ip_tables x_tables snd_seq snd_seq_device vboxnetflt vboxdrv snd_hda_codec_realtek snd_hda_intel snd_hda_codec nvidia(P) snd_pcm snd_timer snd firewire_ohci firewire_core soundcore snd_page_alloc tpm_infineon tpm forcedeth floppy tpm_bios fuse nfs auth_rpcgss lockd sunrpc scsi_wait_scan usbhid ohci_hcd usb_storage usb_libusual ehci_hcd usbcore Pid: 0, comm: swapper Tainted: P W 2.6.30-rc4-git1 #1 Call Trace: [] ? warn_slowpath+0xea/0x160 [] ? task_rq_lock+0x47/0x90 [] ? dma_pool_alloc+0x1b7/0x2d0 [] ? ohci_urb_enqueue+0x1a2/0x980 [ohci_hcd] [] ? __wake_up+0x43/0x70 [] ? find_busiest_group+0x244/0x920 [] ? usb_hcd_submit_urb+0x117/0xa40 [usbcore] [] ? check_unmap+0x3b3/0x610 [] ? debug_dma_unmap_page+0x48/0x50 [] ? nv_tx_done_optimized+0xd9/0x2c0 [forcedeth] [] ? nv_napi_poll+0x76/0x630 [forcedeth] [] ? hrtimer_get_next_event+0xdb/0xf0 [] ? net_rx_action+0x87/0x130 [] ? __do_softirq+0x7b/0x110 [] ? call_softirq+0x1c/0x30 [] ? do_softirq+0x35/0x80 [] ? irq_exit+0x95/0xa0 [] ? do_IRQ+0x85/0xf0 [] ? ret_from_intr+0x0/0xa [] ? default_idle+0x42/0x50 [] ? c1e_idle+0x34/0x100 [] ? __atomic_notifier_call_chain+0x19/0x50 [] ? cpu_idle+0x5a/0xc0 ---[ end trace 93edef2de057a0ee ]--- 2009/5/5 adam radford : > 2009/5/4 Grant Grundler : >> 2009/5/3 Данила Жукоцкий : >> ... >>> WARNING: at lib/dma-debug.c:607 check_unmap+0x542/0x610() >>> Hardware name: HP xw9400 Workstation >>> 3w-9xxx 0001:45:00.0: DMA-API: device driver tries to free DMA memory >>> it has not allocated [device address=0x0000000000000000] [size=36 >>> bytes] >> >> This is definitely a driver bug. Just follow the stack trace back to >> the device driver. >> > > I think this is a regression from the scsi_dma_map()/unmap() changes a while > back. > > Can you try this patch? > > Thanks, > > -Adam > > diff -Naur linux-2.6.30-rc4/drivers/scsi/3w-9xxx.c > linux-2.6.30-rc4.new/drivers/scsi/3w-9xxx.c > --- linux-2.6.30-rc4/drivers/scsi/3w-9xxx.c 2009-05-04 21:19:49.000000000 -0700 > +++ linux-2.6.30-rc4.new/drivers/scsi/3w-9xxx.c 2009-05-04 > 21:23:59.000000000 -0700 > @@ -1978,7 +1978,8 @@ > { > struct scsi_cmnd *cmd = tw_dev->srb[request_id]; > > - scsi_dma_unmap(cmd); > + if (cmd->SCp.phase == TW_PHASE_SGLIST) > + scsi_dma_unmap(cmd); > } /* End twa_unmap_scsi_data() */ > > /* scsi_host_template initializer */ > -- С уважением Данила Жукоцкий, системный администратор ЗАО "Роснефтегазмаш"