Re: 2.6.37-rc7: Regression: b43: crashes in hwrng_register()
From: Mario 'BitKoenig' Holbe
Date: Thu Dec 30 2010 - 15:45:54 EST
On Thu, Dec 30, 2010 at 12:37:21PM -0600, Larry Finger wrote:
> The head of the rng_list is damaged. It is initialized at compile time and
> should be OK. To help discover the order in which hwrng_register() is called,
> apply the attached patch. Run it once with commit 84c164a34ffe67908a installed,
> and once with it reverted.
All right, 3 dmesg excerpts attached...
2.6.37-rc7-vanilla.dmesg:
2.6.37-rc7 vanilla (i.e. with 84c164a34ffe67908a), crashing
via-rng is registered first, b43-rng second
2.6.37-rc7-without.dmesg:
2.6.37-rc7 with 84c164a34ffe67908a reverted, not crashing
b43-rng is registered first, via-rng second
2.6.37-rc7-without+modprobe.dmesg:
2.6.37-rc7 with 84c164a34ffe67908a reverted, b43 blacklisted and
manually modprobed after via-rng, crashing
via-rng is registered first, b43-rng second
Seems like the crash shows up when b43-rng is registered second, but not
when via-rng is registered second.
Btw.: `cat rng_available' does also not crash when via-rng is registered
second.
regards
Mario
--
> As Luke Leighton said once on samba-ntdom, "now, what was that about
> rebooting? that was so long ago, i had to look it up with man -k."
[ 2.048695] b43-pci-bridge 0000:02:00.0: PCI INT A -> GSI 28 (level, low) -> IRQ 28
[ 2.048713] b43-pci-bridge 0000:02:00.0: setting latency timer to 64
...
[ 8.626419] b43-phy0: Broadcom 4312 WLAN found (core revision 15)
[ 8.805909] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[ 8.806815] Registered led device: b43-phy0::tx
[ 8.806853] Registered led device: b43-phy0::rx
[ 8.806894] Registered led device: b43-phy0::radio
[ 8.806915] Broadcom 43xx driver loaded [ Features: PMLS, Firmware-ID: FW13 ]
[ 11.977267] VIA RNG detected
[ 11.977272] Calling hwrng_register
[ 11.977278] Pid: 889, comm: modprobe Not tainted 2.6.37-rc7-self #3
[ 11.977282] Call Trace:
[ 11.977295] [<f8f4e3ac>] ? hwrng_register+0x2c/0x14d [rng_core]
[ 11.977303] [<f9246023>] ? mod_init+0x23/0x3b [via_rng]
[ 11.977312] [<c1003069>] ? do_one_initcall+0x68/0x10f
[ 11.977323] [<c105f0d3>] ? sys_init_module+0xca5/0xe36
[ 11.977354] [<c1008b1f>] ? sysenter_do_call+0x12/0x28
...
[ 24.752102] b43-phy0: Loading firmware version 410.2160 (2007-05-26 15:32:10)
...
[ 30.292235] b43-pci-bridge 0000:02:00.0: PCI: Disallowing DAC for device
[ 30.292246] b43-phy0: DMA mask fallback from 64-bit to 32-bit
[ 30.312705] Calling hwrng_register
[ 30.312719] Pid: 1742, comm: NetworkManager Not tainted 2.6.37-rc7-self #3
[ 30.312727] Call Trace:
[ 30.312756] [<f8f4e3ac>] ? hwrng_register+0x2c/0x14d [rng_core]
[ 30.312799] [<f8fab870>] ? b43_wireless_core_init+0xd0c/0xdd6 [b43]
[ 30.312827] [<f8fabd67>] ? b43_op_start+0xf8/0x142 [b43]
[ 30.312866] [<f8c273da>] ? cfg80211_netdev_notifier_call+0x342/0x355 [cfg80211]
[ 30.312924] [<f8e8e889>] ? ieee80211_do_open+0xed/0x45f [mac80211]
[ 30.312956] [<f8e8de7a>] ? ieee80211_check_concurrent_iface+0x1c/0x135 [mac80211]
[ 30.312978] [<c1203247>] ? __dev_open+0x7d/0xa7
[ 30.312992] [<c1201c10>] ? __dev_change_flags+0x9a/0x10d
[ 30.313004] [<c120319f>] ? dev_change_flags+0x10/0x3b
[ 30.313020] [<c120d207>] ? do_setlink+0x23e/0x532
[ 30.313041] [<c129ced6>] ? schedule+0x579/0x5b6
[ 30.313052] [<c120d5cb>] ? rtnl_setlink+0xd0/0xe1
[ 30.313073] [<c114f000>] ? clear_user+0x2b/0x43
[ 30.313084] [<c120d4fb>] ? rtnl_setlink+0x0/0xe1
[ 30.313096] [<c120cd32>] ? rtnetlink_rcv_msg+0x186/0x19c
[ 30.313108] [<c120cbac>] ? rtnetlink_rcv_msg+0x0/0x19c
[ 30.313123] [<c121bda8>] ? netlink_rcv_skb+0x2d/0x72
[ 30.313134] [<c120cba6>] ? rtnetlink_rcv+0x18/0x1e
[ 30.313145] [<c121bbfc>] ? netlink_unicast+0xba/0x10e
[ 30.313156] [<c121c700>] ? netlink_sendmsg+0x23d/0x256
[ 30.313171] [<c11f53a6>] ? __sock_sendmsg+0x48/0x4e
[ 30.313181] [<c11f560f>] ? sock_sendmsg+0x78/0x8f
[ 30.313193] [<c11f560f>] ? sock_sendmsg+0x78/0x8f
[ 30.313207] [<c10cf5dd>] ? d_kill+0x38/0x3d
[ 30.313225] [<c11fd48c>] ? verify_iovec+0x3d/0x79
[ 30.313235] [<c11f5e0d>] ? sys_sendmsg+0x15f/0x1c1
[ 30.313247] [<c11f5a44>] ? sockfd_lookup_light+0x13/0x3f
[ 30.313258] [<c11f60a5>] ? sys_sendto+0xfd/0x121
[ 30.313273] [<c10079ee>] ? __switch_to+0x6f/0xe2
[ 30.313285] [<c129ced6>] ? schedule+0x579/0x5b6
[ 30.313296] [<c11f5ca3>] ? sys_recvmsg+0x3c/0x47
[ 30.313308] [<c11f707d>] ? sys_socketcall+0x17f/0x1cb
[ 30.313321] [<c1008b1f>] ? sysenter_do_call+0x12/0x28
[ 30.313362] BUG: unable to handle kernel paging request at 60870667
[ 30.313372] IP: [<f8f4e3df>] hwrng_register+0x5f/0x14d [rng_core]
[ 30.313391] *pdpt = 0000000036c34001 *pde = 0000000000000000
[ 30.313403] Oops: 0000 [#1] SMP
[ 30.313411] last sysfs file: /sys/module/bluetooth/initstate
[ 30.313420] Modules linked in: l2cap crc16 parport_pc ppdev lp parport sbs sbshc power_meter pci_slot hed fan container acpi_cpufreq mperf cpufreq_conservative cpufreq_userspace cpufreq_stats cpufreq_powersave dm_crypt fuse loop eeprom via_cputemp i2c_dev nvram padlock_aes aes_i586 aes_generic padlock_sha sha256_generic sha1_generic via_rng msr cpuid snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss arc4 snd_pcm ecb snd_seq_midi snd_rawmidi snd_seq_midi_event b43 snd_seq snd_timer rng_core uvcvideo video snd_seq_device joydev mac80211 videodev ideapad_laptop output btusb battery processor bluetooth tpm_tis snd v4l1_compat ac tpm wmi power_supply cfg80211 soundcore snd_page_alloc tpm_bios rfkill button shpchp pcspkr i2c_viapro evdev i2c_core psmouse serio_raw pci_hotplug ext3 jbd mbcache raid10 raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx raid1 raid0 multipath linear md_mod dm_mirror dm_region_hash dm_log dm_mod btrfs zlib_deflate crc32c libcrc32c sd_mod crc_t10dif ata_generic pata_via libata uhci_hcd ssb ehci_hcd tg3 via_sdmmc usbcore scsi_mod pcmcia thermal mmc_core pcmcia_core libphy thermal_sys nls_base [last unloaded: scsi_wait_scan]
[ 30.313670]
[ 30.313681] Pid: 1742, comm: NetworkManager Not tainted 2.6.37-rc7-self #3 MoutCook/20021,2959
[ 30.313692] EIP: 0060:[<f8f4e3df>] EFLAGS: 00010216 CPU: 0
[ 30.313706] EIP is at hwrng_register+0x5f/0x14d [rng_core]
[ 30.313715] EAX: 00000001 EBX: f4f13010 ECX: f8f4e589 EDX: f4f13035
[ 30.313725] ESI: 6087064b EDI: 00000000 EBP: 00000036 ESP: f4fe7b54
[ 30.313735] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 30.313745] Process NetworkManager (pid: 1742, ti=f4fe6000 task=f6d2e8a0 task.ti=f4fe6000)
[ 30.313753] Stack:
[ 30.313757] f4f12fc0 f4f13035 f8fab870 f4f13035 0000001f f8fc10bb f8fc09f0 f6dcce20
[ 30.313775] 0000000f f6dcac00 f6dcac00 f6f27400 f4f122c0 f4f10240 f4f12fc8 f8fabd67
[ 30.313793] f8c273da f4f122c0 f6ec0400 f8e9ee48 f6ec0000 f8e8e889 f8e8de7a 00000000
[ 30.313810] Call Trace:
[ 30.313835] [<f8fab870>] ? b43_wireless_core_init+0xd0c/0xdd6 [b43]
[ 30.313863] [<f8fabd67>] ? b43_op_start+0xf8/0x142 [b43]
[ 30.313889] [<f8c273da>] ? cfg80211_netdev_notifier_call+0x342/0x355 [cfg80211]
[ 30.313926] [<f8e8e889>] ? ieee80211_do_open+0xed/0x45f [mac80211]
[ 30.313958] [<f8e8de7a>] ? ieee80211_check_concurrent_iface+0x1c/0x135 [mac80211]
[ 30.313975] [<c1203247>] ? __dev_open+0x7d/0xa7
[ 30.313986] [<c1201c10>] ? __dev_change_flags+0x9a/0x10d
[ 30.313998] [<c120319f>] ? dev_change_flags+0x10/0x3b
[ 30.314011] [<c120d207>] ? do_setlink+0x23e/0x532
[ 30.314026] [<c129ced6>] ? schedule+0x579/0x5b6
[ 30.314037] [<c120d5cb>] ? rtnl_setlink+0xd0/0xe1
[ 30.314052] [<c114f000>] ? clear_user+0x2b/0x43
[ 30.314063] [<c120d4fb>] ? rtnl_setlink+0x0/0xe1
[ 30.314074] [<c120cd32>] ? rtnetlink_rcv_msg+0x186/0x19c
[ 30.314086] [<c120cbac>] ? rtnetlink_rcv_msg+0x0/0x19c
[ 30.314098] [<c121bda8>] ? netlink_rcv_skb+0x2d/0x72
[ 30.314109] [<c120cba6>] ? rtnetlink_rcv+0x18/0x1e
[ 30.314120] [<c121bbfc>] ? netlink_unicast+0xba/0x10e
[ 30.314132] [<c121c700>] ? netlink_sendmsg+0x23d/0x256
[ 30.314145] [<c11f53a6>] ? __sock_sendmsg+0x48/0x4e
[ 30.314155] [<c11f560f>] ? sock_sendmsg+0x78/0x8f
[ 30.314167] [<c11f560f>] ? sock_sendmsg+0x78/0x8f
[ 30.314179] [<c10cf5dd>] ? d_kill+0x38/0x3d
[ 30.314192] [<c11fd48c>] ? verify_iovec+0x3d/0x79
[ 30.314203] [<c11f5e0d>] ? sys_sendmsg+0x15f/0x1c1
[ 30.314214] [<c11f5a44>] ? sockfd_lookup_light+0x13/0x3f
[ 30.314225] [<c11f60a5>] ? sys_sendto+0xfd/0x121
[ 30.314237] [<c10079ee>] ? __switch_to+0x6f/0xe2
[ 30.314250] [<c129ced6>] ? schedule+0x579/0x5b6
[ 30.314261] [<c11f5ca3>] ? sys_recvmsg+0x3c/0x47
[ 30.314272] [<c11f707d>] ? sys_socketcall+0x17f/0x1cb
[ 30.314284] [<c1008b1f>] ? sysenter_do_call+0x12/0x28
[ 30.314292] Code: 34 c8 8b 35 1c e6 f4 f8 59 83 ee 1c eb 1d 8b 13 8b 06 e8 84 06 20 c8 85 c0 75 0a be ef ff ff ff e9 d3 00 00 00 8b 76 1c 83 ee 1c <8b> 46 1c 0f 18 00 90 81 fe 00 e6 f4 f8 75 d4 83 3d 2c e8 f4 f8
[ 30.314376] EIP: [<f8f4e3df>] hwrng_register+0x5f/0x14d [rng_core] SS:ESP 0068:f4fe7b54
[ 30.314395] CR2: 0000000060870667
[ 30.314404] ---[ end trace f498f4a4e1f00415 ]---
[ 2.034921] b43-pci-bridge 0000:02:00.0: PCI INT A -> GSI 28 (level, low) -> IRQ 28
[ 2.034939] b43-pci-bridge 0000:02:00.0: setting latency timer to 64
...
[ 8.363363] b43-phy0: Broadcom 4312 WLAN found (core revision 15)
[ 8.377768] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio2/input/input7
[ 8.563088] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[ 8.564034] Registered led device: b43-phy0::tx
[ 8.564073] Registered led device: b43-phy0::rx
[ 8.564111] Registered led device: b43-phy0::radio
[ 8.564115] Calling hwrng_register
[ 8.564121] Pid: 471, comm: modprobe Not tainted 2.6.37-rc7-self #4
[ 8.564124] Call Trace:
[ 8.564137] [<f8fa83ac>] ? hwrng_register+0x2c/0x14d [rng_core]
[ 8.564176] [<f8fe0b23>] ? b43_probe+0x9e5/0xa85 [b43]
[ 8.564189] [<c11047aa>] ? sysfs_find_dirent+0x25/0x36
[ 8.564195] [<c11049dc>] ? __sysfs_add_one+0x25/0x72
[ 8.564202] [<c1104fb5>] ? sysfs_addrm_finish+0x13/0x8f
[ 8.564208] [<c11050e6>] ? sysfs_add_one+0x10/0xc7
[ 8.564215] [<c1105506>] ? sysfs_do_create_link+0x34/0x150
[ 8.564246] [<f859948d>] ? ssb_device_probe+0x2c/0x47 [ssb]
[ 8.564258] [<c11d9954>] ? driver_probe_device+0x8c/0x110
[ 8.564264] [<c11d9a18>] ? __driver_attach+0x40/0x5b
[ 8.564273] [<c11d91b5>] ? bus_for_each_dev+0x37/0x5f
[ 8.564281] [<c11d980a>] ? driver_attach+0x11/0x13
[ 8.564287] [<c11d99d8>] ? __driver_attach+0x0/0x5b
[ 8.564293] [<c11d9530>] ? bus_add_driver+0x87/0x1bb
[ 8.564299] [<c1148c2a>] ? kset_find_obj_hinted+0x12/0x7d
[ 8.564317] [<f9000000>] ? b43_init+0x0/0x62 [b43]
[ 8.564323] [<c11d9c34>] ? driver_register+0x7a/0xd9
[ 8.564339] [<f9000000>] ? b43_init+0x0/0x62 [b43]
[ 8.564355] [<f9000026>] ? b43_init+0x26/0x62 [b43]
[ 8.564362] [<c1003069>] ? do_one_initcall+0x68/0x10f
[ 8.564372] [<c105f0d3>] ? sys_init_module+0xca5/0xe36
[ 8.564392] [<c1008b1f>] ? sysenter_do_call+0x12/0x28
[ 8.564502] Broadcom 43xx driver loaded [ Features: PMLS, Firmware-ID: FW13 ]
...
[ 11.786812] VIA RNG detected
[ 11.786817] Calling hwrng_register
[ 11.786823] Pid: 776, comm: modprobe Not tainted 2.6.37-rc7-self #4
[ 11.786827] Call Trace:
[ 11.786840] [<f8fa83ac>] ? hwrng_register+0x2c/0x14d [rng_core]
[ 11.786848] [<f9202023>] ? mod_init+0x23/0x3b [via_rng]
[ 11.786858] [<c1003069>] ? do_one_initcall+0x68/0x10f
[ 11.786868] [<c105f0d3>] ? sys_init_module+0xca5/0xe36
[ 11.786899] [<c1008b1f>] ? sysenter_do_call+0x12/0x28
...
[ 24.596098] b43-phy0: Loading firmware version 410.2160 (2007-05-26 15:32:10)
...
[ 30.136244] b43-pci-bridge 0000:02:00.0: PCI: Disallowing DAC for device
[ 30.136257] b43-phy0: DMA mask fallback from 64-bit to 32-bit
[ 30.158623] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 2.032560] b43-pci-bridge 0000:02:00.0: PCI INT A -> GSI 28 (level, low) -> IRQ 28
[ 2.032577] b43-pci-bridge 0000:02:00.0: setting latency timer to 64
...
[ 11.649390] VIA RNG detected
[ 11.649395] Calling hwrng_register
[ 11.649401] Pid: 745, comm: modprobe Not tainted 2.6.37-rc7-self #4
[ 11.649405] Call Trace:
[ 11.649415] [<f90b13ac>] ? hwrng_register+0x2c/0x14d [rng_core]
[ 11.649423] [<f90be023>] ? mod_init+0x23/0x3b [via_rng]
[ 11.649433] [<c1003069>] ? do_one_initcall+0x68/0x10f
[ 11.649443] [<c105f0d3>] ? sys_init_module+0xca5/0xe36
[ 11.649470] [<c1008b1f>] ? sysenter_do_call+0x12/0x28
...
[ 92.861343] b43-phy0: Broadcom 4312 WLAN found (core revision 15)
[ 92.986756] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[ 92.993027] Registered led device: b43-phy0::tx
[ 92.993696] Registered led device: b43-phy0::rx
[ 92.994271] Registered led device: b43-phy0::radio
[ 92.994278] Calling hwrng_register
[ 92.994284] Pid: 2622, comm: modprobe Not tainted 2.6.37-rc7-self #4
[ 92.994287] Call Trace:
[ 92.994312] [<f90b13ac>] ? hwrng_register+0x2c/0x14d [rng_core]
[ 92.994351] [<f84b4b23>] ? b43_probe+0x9e5/0xa85 [b43]
[ 92.994364] [<c11047aa>] ? sysfs_find_dirent+0x25/0x36
[ 92.994370] [<c11049dc>] ? __sysfs_add_one+0x25/0x72
[ 92.994377] [<c1104fb5>] ? sysfs_addrm_finish+0x13/0x8f
[ 92.994383] [<c11050e6>] ? sysfs_add_one+0x10/0xc7
[ 92.994390] [<c1105506>] ? sysfs_do_create_link+0x34/0x150
[ 92.994432] [<f850348d>] ? ssb_device_probe+0x2c/0x47 [ssb]
[ 92.994445] [<c11d9954>] ? driver_probe_device+0x8c/0x110
[ 92.994451] [<c11d9a18>] ? __driver_attach+0x40/0x5b
[ 92.994464] [<c11d91b5>] ? bus_for_each_dev+0x37/0x5f
[ 92.994476] [<c11d980a>] ? driver_attach+0x11/0x13
[ 92.994482] [<c11d99d8>] ? __driver_attach+0x0/0x5b
[ 92.994488] [<c11d9530>] ? bus_add_driver+0x87/0x1bb
[ 92.994495] [<c1148c2a>] ? kset_find_obj_hinted+0x12/0x7d
[ 92.994512] [<f8393000>] ? b43_init+0x0/0x62 [b43]
[ 92.994518] [<c11d9c34>] ? driver_register+0x7a/0xd9
[ 92.994534] [<f8393000>] ? b43_init+0x0/0x62 [b43]
[ 92.994549] [<f8393026>] ? b43_init+0x26/0x62 [b43]
[ 92.994556] [<c1003069>] ? do_one_initcall+0x68/0x10f
[ 92.994565] [<c105f0d3>] ? sys_init_module+0xca5/0xe36
[ 92.994608] [<c1008b1f>] ? sysenter_do_call+0x12/0x28
[ 92.994627] BUG: unable to handle kernel paging request at 44b3442d
[ 92.994632] IP: [<f90b13df>] hwrng_register+0x5f/0x14d [rng_core]
[ 92.994642] *pdpt = 0000000033c0e001 *pde = 0000000000000000
[ 92.994648] Oops: 0000 [#1] SMP
[ 92.994652] last sysfs file: /sys/devices/pci0000:00/0000:00:03.0/0000:02:00.0/ssb0:0/leds/b43-phy0::radio/uevent
[ 92.994658] Modules linked in: arc4 ecb b43(+) mac80211 cfg80211 uinput sco bnep rfcomm l2cap crc16 via drm parport_pc ppdev lp parport sbs sbshc power_meter pci_slot hed fan container acpi_cpufreq mperf cpufreq_conservative cpufreq_userspace cpufreq_stats cpufreq_powersave dm_crypt fuse loop eeprom via_cputemp i2c_dev nvram padlock_aes aes_i586 aes_generic padlock_sha sha256_generic sha1_generic via_rng rng_core msr cpuid snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event joydev uvcvideo snd_seq btusb videodev snd_timer bluetooth tpm_tis tpm snd_seq_device v4l1_compat ideapad_laptop tpm_bios battery ac i2c_viapro snd rfkill power_supply soundcore snd_page_alloc processor psmouse evdev video i2c_core serio_raw pcspkr shpchp wmi output button pci_hotplug ext3 jbd mbcache raid10 raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx raid1 raid0 multipath linear md_mod dm_mirror dm_region_hash dm_log dm_mod btrfs zlib_deflate crc32c libcrc32c sd_mod crc_t10dif ata_generic uhci_hcd pata_via ehci_hcd libata ssb tg3 usbcore scsi_mod via_sdmmc pcmcia mmc_core pcmcia_core libphy thermal thermal_sys nls_base [last unloaded: scsi_wait_scan]
[ 92.994792]
[ 92.994798] Pid: 2622, comm: modprobe Not tainted 2.6.37-rc7-self #4 MoutCook/20021,2959
[ 92.994803] EIP: 0060:[<f90b13df>] EFLAGS: 00010206 CPU: 0
[ 92.994810] EIP is at hwrng_register+0x5f/0x14d [rng_core]
[ 92.994815] EAX: 00000001 EBX: f7143010 ECX: f90b1589 EDX: f7143035
[ 92.994819] ESI: 44b34411 EDI: f7142fc0 EBP: 00000000 ESP: f3c17e04
[ 92.994824] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 92.994829] Process modprobe (pid: 2622, ti=f3c16000 task=f3cba080 task.ti=f3c16000)
[ 92.994833] Stack:
[ 92.994836] f7143035 f3caec00 f84b4b23 f7143035 0000001f f84cae30 f84ca9f0 f3ced0d8
[ 92.994844] 2206017f f6d31c64 6161d6ee f4fa9f01 f3ced0d0 c11047aa f3d21210 f3c17e05
[ 92.994853] f3d21210 c11049dc c1104fb5 f4fa9e00 c11050e6 00000000 0000461c f6d31c00
[ 92.994862] Call Trace:
[ 92.994879] [<f84b4b23>] ? b43_probe+0x9e5/0xa85 [b43]
[ 92.994886] [<c11047aa>] ? sysfs_find_dirent+0x25/0x36
[ 92.994892] [<c11049dc>] ? __sysfs_add_one+0x25/0x72
[ 92.994898] [<c1104fb5>] ? sysfs_addrm_finish+0x13/0x8f
[ 92.994904] [<c11050e6>] ? sysfs_add_one+0x10/0xc7
[ 92.994910] [<c1105506>] ? sysfs_do_create_link+0x34/0x150
[ 92.994929] [<f850348d>] ? ssb_device_probe+0x2c/0x47 [ssb]
[ 92.994936] [<c11d9954>] ? driver_probe_device+0x8c/0x110
[ 92.994942] [<c11d9a18>] ? __driver_attach+0x40/0x5b
[ 92.994954] [<c11d91b5>] ? bus_for_each_dev+0x37/0x5f
[ 92.994967] [<c11d980a>] ? driver_attach+0x11/0x13
[ 92.994972] [<c11d99d8>] ? __driver_attach+0x0/0x5b
[ 92.994978] [<c11d9530>] ? bus_add_driver+0x87/0x1bb
[ 92.994984] [<c1148c2a>] ? kset_find_obj_hinted+0x12/0x7d
[ 92.995000] [<f8393000>] ? b43_init+0x0/0x62 [b43]
[ 92.995005] [<c11d9c34>] ? driver_register+0x7a/0xd9
[ 92.995021] [<f8393000>] ? b43_init+0x0/0x62 [b43]
[ 92.995036] [<f8393026>] ? b43_init+0x26/0x62 [b43]
[ 92.995042] [<c1003069>] ? do_one_initcall+0x68/0x10f
[ 92.995048] [<c105f0d3>] ? sys_init_module+0xca5/0xe36
[ 92.995086] [<c1008b1f>] ? sysenter_do_call+0x12/0x28
[ 92.995090] Code: 1e c8 8b 35 1c 16 0b f9 59 83 ee 1c eb 1d 8b 13 8b 06 e8 84 d6 09 c8 85 c0 75 0a be ef ff ff ff e9 d3 00 00 00 8b 76 1c 83 ee 1c <8b> 46 1c 0f 18 00 90 81 fe 00 16 0b f9 75 d4 83 3d 2c 18 0b f9
[ 92.995132] EIP: [<f90b13df>] hwrng_register+0x5f/0x14d [rng_core] SS:ESP 0068:f3c17e04
[ 92.995143] CR2: 0000000044b3442d
[ 92.995148] ---[ end trace 66162330d52e4fa4 ]---
[ 93.444122] b43-phy0: Loading firmware version 410.2160 (2007-05-26 15:32:10)
[ 98.960305] b43-pci-bridge 0000:02:00.0: PCI: Disallowing DAC for device
[ 98.960316] b43-phy0: DMA mask fallback from 64-bit to 32-bit
[ 98.990133] ADDRCONF(NETDEV_UP): wlan0: link is not ready
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