Fedora rawhide has the DMA API debug patch applied and it has found this... >From https://bugzilla.redhat.com/show_bug.cgi?id=485172 WARNING: at lib/dma-debug.c:439 check_unmap+0x16a/0x3dd() (Tainted: G W ) Hardware name: System Product Name sata_nv 0000:00:0d.0: DMA-API: device driver frees DMA memory with different size [device address=0x00000000da031000] [map size=4096 bytes] [unmap size=8192bytes] Modules linked in: bridge stp llc bnep sco l2cap bluetooth sunrpc ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 cpufreq_ondemand powernow_k8freq_table dm_multipath uinput snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_hwdep snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss ppdev snd_mixer_oss snd_pcm snd_timer firewire_ohci snd firewire_core soundcore aic7xxx snd_page_alloc jedec_probe crc_itu_t forcedeth scsi_transport_spi pcspkr cfi_probe gen_probe sata_sil24 parport_pc cfi_util parport mtd chipreg i2c_nforce2 map_funcs asus_atk0110 pata_amd i2c_core hwmon ata_generic pata_acpi sata_nv raid456 async_xor async_memcpy async_tx xor raid1 sha256_generic cbc aes_x86_64 aes_generic dm_crypt ext4 jbd2 crc16 [last unloaded: scsi_wait_scan] Pid: 0, comm: swapper Tainted: G W 2.6.29-0.99.rc4.git1.fc11.x86_64 #1 Call Trace: <IRQ> [<ffffffff81048822>] warn_slowpath+0xb7/0xe7 [<ffffffff8137bc4f>] ? _spin_lock_irqsave+0x78/0x86 [<ffffffff8119851b>] ? get_hash_bucket+0x28/0x34 [<ffffffff8106a5ae>] ? trace_hardirqs_off_caller+0x1f/0xac [<ffffffff81198a15>] check_unmap+0x16a/0x3dd [<ffffffff810388a7>] ? resched_task+0x2e/0x74 [<ffffffff81198d66>] debug_dma_unmap_sg+0x7c/0x9b [<ffffffff8106a648>] ? trace_hardirqs_off+0xd/0xf [<ffffffff8124fef9>] ata_sg_clean+0x96/0xd0 [<ffffffff8124ff89>] __ata_qc_complete+0x56/0xc9 [<ffffffff8125018b>] ata_qc_complete+0x18f/0x198 [<ffffffffa00cb249>] nv_swncq_interrupt+0x358/0x688 [sata_nv] [<ffffffff8137b8fe>] ? _spin_unlock_irqrestore+0x3c/0x53 [<ffffffff8106a5ae>] ? trace_hardirqs_off_caller+0x1f/0xac [<ffffffff81016d7d>] ? read_tsc+0x9/0x1a [<ffffffff81063eb1>] ? getnstimeofday+0x5a/0xae [<ffffffff81093288>] handle_IRQ_event+0x22/0x5e [<ffffffff81094ba0>] handle_fasteoi_irq+0x8b/0xd7 [<ffffffff81013a55>] do_IRQ+0xd4/0x14b [<ffffffff81011d93>] ret_from_intr+0x0/0x2e <EOI> [<ffffffff810179fe>] ? default_idle+0x47/0x77 [<ffffffff8106b61f>] ? trace_hardirqs_on+0xd/0xf [<ffffffff81029282>] ? native_safe_halt+0x6/0x8 [<ffffffff8106b61f>] ? trace_hardirqs_on+0xd/0xf [<ffffffff81017a03>] ? default_idle+0x4c/0x77 [<ffffffff810666fb>] ? clockevents_notify+0x5d/0x62 [<ffffffff81017b2d>] ? c1e_idle+0xf1/0x126 [<ffffffff81010220>] ? cpu_idle+0x63/0xae [<ffffffff813754d1>] ? start_secondary+0x199/0x19e -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
