Kernel failure message 1:
------------[ cut here ]------------
WARNING: at lib/dma-debug.c:461 check_unmap+0xd4/0x3dd() (Not tainted)
Hardware name: HP Pavilion dv9000 (RW756EA#UUW)  
forcedeth 0000:00:14.0: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x000000002eb25b1a] [size=90 bytes]
Modules linked in: rfkill_input rfcomm sco bridge stp llc bnep l2cap sunrpc ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 cpufreq_ondemand powernow_k8 freq_table dm_multipath uinput arc4 ecb b43 rfkill mac80211 cfg80211 input_polldev snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd sdhci_pci uvcvideo firewire_ohci sdhci soundcore videodev firewire_core k8temp forcedeth mmc_core snd_page_alloc ricoh_mmc v4l1_compat hwmon pcspkr btusb crc_itu_t v4l2_compat_ioctl32 joydev bluetooth video ssb i2c_nforce2 wmi pata_amd output ata_generic pata_acpi sata_nv nouveau drm i2c_core [last unloaded: scsi_wait_scan]
Pid: 2158, comm: dbus-daemon Not tainted 2.6.29.1-37.rc1.fc11.x86_64 #1
Call Trace:
<IRQ>  [<ffffffff8104d02f>] warn_slowpath+0xbc/0xf0
[<ffffffff813c3958>] ? _spin_lock_irqsave+0x7d/0x8b
[<ffffffff811d4305>] ? get_hash_bucket+0x28/0x34
[<ffffffff813c35df>] ? _spin_unlock_irqrestore+0x41/0x58
[<ffffffff811d49d0>] check_unmap+0xd4/0x3dd
[<ffffffff811d4e26>] debug_dma_unmap_page+0x50/0x52
[<ffffffffa013d79f>] pci_unmap_page.clone.0+0x4b/0x54 [forcedeth]
[<ffffffffa013dc3c>] nv_tx_done_optimized+0x49/0x1d2 [forcedeth]
[<ffffffffa013e160>] nv_nic_irq_optimized+0xb8/0x27a [forcedeth]
[<ffffffff810989cb>] handle_IRQ_event+0x27/0x63
[<ffffffff8109a3d2>] handle_fasteoi_irq+0x90/0xdc
[<ffffffff81013bf4>] do_IRQ+0xd9/0x151
[<ffffffff81011e93>] ret_from_intr+0x0/0x2e
<EOI>  [<ffffffff813c35eb>] ? _spin_unlock_irqrestore+0x4d/0x58
[<ffffffff811cfd57>] ? debug_object_free+0xc8/0xe9
[<ffffffff81063fb0>] ? destroy_hrtimer_on_stack+0x15/0x17
[<ffffffff813c22b3>] ? schedule_hrtimeout_range+0xfe/0x128
[<ffffffff81064291>] ? hrtimer_wakeup+0x0/0x26
[<ffffffff810f15c4>] ? poll_schedule_timeout+0x38/0x51
[<ffffffff810f1989>] ? do_sys_poll+0x312/0x3a9
[<ffffffff810f2669>] ? __pollwait+0x0/0xc4
[<ffffffff810f272d>] ? pollwake+0x0/0x47
[<ffffffff810f272d>] ? pollwake+0x0/0x47
[<ffffffff810f272d>] ? pollwake+0x0/0x47
[<ffffffff810f272d>] ? pollwake+0x0/0x47
[<ffffffff810f272d>] ? pollwake+0x0/0x47
[<ffffffff810f272d>] ? pollwake+0x0/0x47
[<ffffffff810f272d>] ? pollwake+0x0/0x47
[<ffffffff810f272d>] ? pollwake+0x0/0x47
[<ffffffff810f272d>] ? pollwake+0x0/0x47
[<ffffffff810f272d>] ? pollwake+0x0/0x47
[<ffffffff81017095>] ? sched_clock+0x9/0xc
[<ffffffff81068d24>] ? clocksource_read+0xc/0xe
[<ffffffff81068fb0>] ? getnstimeofday+0x5f/0xb3
[<ffffffff81064e6e>] ? ktime_get_ts+0x4e/0x53
[<ffffffff810f1571>] ? poll_select_set_timeout+0x66/0x81
[<ffffffff810f1bc0>] ? sys_poll+0x57/0xc2
[<ffffffff8101133a>] ? system_call_fastpath+0x16/0x1b
---[ end trace 29b64544a156d5e4 ]---


Kernel failure message 2:
------------[ cut here ]------------
WARNING: at lib/dma-debug.c:461 check_unmap+0xd4/0x3dd() (Not tainted)
Hardware name: HP Pavilion dv9000 (RW756EA#UUW)  
forcedeth 0000:00:14.0: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x000000002eb25b1a] [size=90 bytes]
Modules linked in: rfkill_input rfcomm sco bridge stp llc bnep l2cap sunrpc ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 cpufreq_ondemand powernow_k8 freq_table dm_multipath uinput arc4 ecb b43 rfkill mac80211 cfg80211 input_polldev snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd sdhci_pci uvcvideo firewire_ohci sdhci soundcore videodev firewire_core k8temp forcedeth mmc_core snd_page_alloc ricoh_mmc v4l1_compat hwmon pcspkr btusb crc_itu_t v4l2_compat_ioctl32 joydev bluetooth video ssb i2c_nforce2 wmi pata_amd output ata_generic pata_acpi sata_nv nouveau drm i2c_core [last unloaded: scsi_wait_scan]
Pid: 2158, comm: dbus-daemon Not tainted 2.6.29.1-37.rc1.fc11.x86_64 #1
Call Trace:
 <IRQ>  [<ffffffff8104d02f>] warn_slowpath+0xbc/0xf0
 [<ffffffff813c3958>] ? _spin_lock_irqsave+0x7d/0x8b
 [<ffffffff811d4305>] ? get_hash_bucket+0x28/0x34
 [<ffffffff813c35df>] ? _spin_unlock_irqrestore+0x41/0x58
 [<ffffffff811d49d0>] check_unmap+0xd4/0x3dd
 [<ffffffff811d4e26>] debug_dma_unmap_page+0x50/0x52
 [<ffffffffa013d79f>] pci_unmap_page.clone.0+0x4b/0x54 [forcedeth]
 [<ffffffffa013dc3c>] nv_tx_done_optimized+0x49/0x1d2 [forcedeth]
 [<ffffffffa013e160>] nv_nic_irq_optimized+0xb8/0x27a [forcedeth]
 [<ffffffff810989cb>] handle_IRQ_event+0x27/0x63
 [<ffffffff8109a3d2>] handle_fasteoi_irq+0x90/0xdc
 [<ffffffff81013bf4>] do_IRQ+0xd9/0x151
 [<ffffffff81011e93>] ret_from_intr+0x0/0x2e
 <EOI>  [<ffffffff813c35eb>] ? _spin_unlock_irqrestore+0x4d/0x58
 [<ffffffff811cfd57>] ? debug_object_free+0xc8/0xe9
 [<ffffffff81063fb0>] ? destroy_hrtimer_on_stack+0x15/0x17
 [<ffffffff813c22b3>] ? schedule_hrtimeout_range+0xfe/0x128
 [<ffffffff81064291>] ? hrtimer_wakeup+0x0/0x26
 [<ffffffff810f15c4>] ? poll_schedule_timeout+0x38/0x51
 [<ffffffff810f1989>] ? do_sys_poll+0x312/0x3a9
 [<ffffffff810f2669>] ? __pollwait+0x0/0xc4
 [<ffffffff810f272d>] ? pollwake+0x0/0x47
 [<ffffffff810f272d>] ? pollwake+0x0/0x47
 [<ffffffff810f272d>] ? pollwake+0x0/0x47
 [<ffffffff810f272d>] ? pollwake+0x0/0x47
 [<ffffffff810f272d>] ? pollwake+0x0/0x47
 [<ffffffff810f272d>] ? pollwake+0x0/0x47
 [<ffffffff810f272d>] ? pollwake+0x0/0x47
 [<ffffffff810f272d>] ? pollwake+0x0/0x47
 [<ffffffff810f272d>] ? pollwake+0x0/0x47
 [<ffffffff810f272d>] ? pollwake+0x0/0x47
 [<ffffffff81017095>] ? sched_clock+0x9/0xc
 [<ffffffff81068d24>] ? clocksource_read+0xc/0xe
 [<ffffffff81068fb0>] ? getnstimeofday+0x5f/0xb3
 [<ffffffff81064e6e>] ? ktime_get_ts+0x4e/0x53
 [<ffffffff810f1571>] ? poll_select_set_timeout+0x66/0x81
 [<ffffffff810f1bc0>] ? sys_poll+0x57/0xc2
 [<ffffffff8101133a>] ? system_call_fastpath+0x16/0x1b
---[ end trace 29b64544a156d5e4 ]---