From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx1.redhat.com ([209.132.183.28]:12264 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751671Ab1BNMul (ORCPT ); Mon, 14 Feb 2011 07:50:41 -0500 Date: Mon, 14 Feb 2011 13:50:47 +0100 From: Stanislaw Gruszka To: Wey-Yi Guy , Intel Linux Wireless Cc: linux-wireless@vger.kernel.org Subject: Re: [PATCH] iwlwifi: fix dma mappings and skbs leak Message-ID: <20110214125046.GB14827@redhat.com> References: <1297683529-4053-1-git-send-email-sgruszka@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1297683529-4053-1-git-send-email-sgruszka@redhat.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, Feb 14, 2011 at 12:38:49PM +0100, Stanislaw Gruszka wrote: > WARNING: at lib/dma-debug.c:689 dma_debug_device_change+0x15a/0x1b0() > Hardware name: HP xw8600 Workstation > pci 0000:80:00.0: DMA-API: device driver has pending DMA allocations while released from device [count=444] > Modules linked in: iwlagn(-) iwlcore cryptd aes_x86_64 aes_generic fuse autofs4 sunrpc cpufreq_ondemand acpi_cpufreq freq_table mperf xt_physdev ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ipv6 ext3 jbd dm_mirror dm_region_hash dm_log dm_mod kvm uinput hp_wmi sparse_keymap wmi sg microcode serio_raw iTCO_wdt iTCO_vendor_support tg3 snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm arc4 ecb snd_timer snd soundcore snd_page_alloc i5k_amb hwmon i5400_edac edac_core shpchp mac80211 cfg80211 rfkill ext4 mbcache jbd2 sd_mod crc_t10dif sr_mod cdrom firewire_ohci firewire_core crc_itu_t mptsas mptscsih mptbase scsi_transport_sas pata_acpi ata_generic ata_piix ahci libahci floppy nouveau ttm drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: iwlcore] > Pid: 7382, comm: rmmod Not tainted 2.6.38-rc3-wl+ #17 > Call Trace: > [] ? warn_slowpath_common+0x7f/0xc0 > [] ? warn_slowpath_fmt+0x46/0x50 > [] ? dma_debug_device_change+0xdb/0x1b0 > [] ? dma_debug_device_change+0x15a/0x1b0 > [] ? notifier_call_chain+0x58/0xb0 > [] ? __blocking_notifier_call_chain+0x60/0x90 > [] ? blocking_notifier_call_chain+0x16/0x20 > [] ? __device_release_driver+0xbc/0xe0 > [] ? driver_detach+0xd8/0xe0 > [] ? bus_remove_driver+0x91/0x100 > [] ? driver_unregister+0x62/0xa0 > [] ? pci_unregister_driver+0x44/0xa0 > [] ? iwl_exit+0x15/0x1c [iwlagn] > [] ? sys_delete_module+0x1a2/0x270 > [] ? trace_hardirqs_on_thunk+0x3a/0x3f > [] ? system_call_fastpath+0x16/0x1b Hmm, I still have this warning after patch applied, so problem is not fully fixed. Plese hold with with that patch for now. Stanislaw