[BUG] Crda oopses the system

[BUG] Crda oopses the system

[Maxim Levitsky]

Here what I see:


> May  4 16:35:14 maxim-laptop kernel: [16939.109054] Process crda (pid: 29344, threadinfo ffff88007deaa000, task ffff880067369600)
> May  4 16:35:14 maxim-laptop kernel: [16939.109058] Stack:
> May  4 16:35:14 maxim-laptop kernel: [16939.109061]  0000000000000034 ffff88003fb8a640 0000000000000000 ffff8800634f5c20
> May  4 16:35:14 maxim-laptop kernel: [16939.109069]  ffff88007deaba28 ffffffffa00eb3d0 000004f87deab9c8 ffff88003fb8a640
> May  4 16:35:14 maxim-laptop kernel: [16939.109077]  0000000000000000 ffff8800634f5c24 ffff8800634f5c2c ffff8800634f5c34
> May  4 16:35:14 maxim-laptop kernel: [16939.109086] Call Trace:
> May  4 16:35:14 maxim-laptop kernel: [16939.109091]  [<ffffffffa00eb3d0>] nl80211_set_reg+0x100/0x2b0 [cfg80211]
> May  4 16:35:14 maxim-laptop kernel: [16939.109107]  [<ffffffff803e697f>] ? nla_parse+0xef/0x110
> May  4 16:35:14 maxim-laptop kernel: [16939.109118]  [<ffffffff80513716>] genl_rcv_msg+0x1b6/0x1f0
> May  4 16:35:14 maxim-laptop kernel: [16939.109126]  [<ffffffff80513560>] ? genl_rcv_msg+0x0/0x1f0
> May  4 16:35:14 maxim-laptop kernel: [16939.109132]  [<ffffffff80512d49>] netlink_rcv_skb+0x89/0xb0
> May  4 16:35:14 maxim-laptop kernel: [16939.109140]  [<ffffffff80513547>] genl_rcv+0x27/0x40
> May  4 16:35:14 maxim-laptop kernel: [16939.109146]  [<ffffffff805128a9>] ? netlink_sendmsg+0x159/0x300
> May  4 16:35:14 maxim-laptop kernel: [16939.109153]  [<ffffffff80512734>] netlink_unicast+0x2c4/0x2e0
> May  4 16:35:14 maxim-laptop kernel: [16939.109161]  [<ffffffff804f356e>] ? __alloc_skb+0x6e/0x150
> May  4 16:35:14 maxim-laptop kernel: [16939.109169]  [<ffffffff8051294e>] netlink_sendmsg+0x1fe/0x300
> May  4 16:35:14 maxim-laptop kernel: [16939.109176]  [<ffffffff804ea607>] sock_sendmsg+0x127/0x140
> May  4 16:35:14 maxim-laptop kernel: [16939.109183]  [<ffffffff8025be50>] ? autoremove_wake_function+0x0/0x40
> May  4 16:35:14 maxim-laptop kernel: [16939.109193]  [<ffffffff8029f986>] ? get_page_from_freelist+0x3b6/0x650
> May  4 16:35:14 maxim-laptop kernel: [16939.109201]  [<ffffffff80299985>] ? find_lock_page+0x25/0x70
> May  4 16:35:14 maxim-laptop kernel: [16939.109208]  [<ffffffff804e924b>] ? move_addr_to_kernel+0x2b/0x40
> May  4 16:35:14 maxim-laptop kernel: [16939.109214]  [<ffffffff804f4b8c>] ? verify_iovec+0x3c/0xd0
> May  4 16:35:14 maxim-laptop kernel: [16939.109221]  [<ffffffff804ea7a9>] sys_sendmsg+0x189/0x320
> May  4 16:35:14 maxim-laptop kernel: [16939.109228]  [<ffffffff804eb635>] ? move_addr_to_user+0x65/0x80
> May  4 16:35:14 maxim-laptop kernel: [16939.109235]  [<ffffffff802b1651>] ? handle_mm_fault+0x1e1/0x830
> May  4 16:35:14 maxim-laptop kernel: [16939.109243]  [<ffffffff803d8f21>] ? __up_read+0x91/0xb0
> May  4 16:35:14 maxim-laptop kernel: [16939.109252]  [<ffffffff8020bf2b>] system_call_fastpath+0x16/0x1b
> May  4 16:35:14 maxim-laptop kernel: [16939.109261] Code: a1 00 00 00 0f be 50 39 0f be 70 38 48 c7 c7 70 07 0f a0 31 c0 e8 15 da 49 e0 e9 55 fe ff ff 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe <0f> 0b eb fe 48 8b 35 e5 38 01 00 4c 89 e7 e8 05 f9 ff ff 49 89 
> May  4 16:35:14 maxim-laptop kernel: [16939.109329] RIP  [<ffffffffa00e4f58>] set_regdom+0x428/0x4c0 [cfg80211]
> May  4 16:35:14 maxim-laptop kernel: [16939.109344]  RSP <ffff88007deab978>
> May  4 16:35:14 maxim-laptop kernel: [16939.109350] ---[ end trace 695815cef5ce0efe ]---
> 

This happens @ my university where APs send country code, and thus NM calls crda to apply it.
(I already applied it in initscripts)

intel 3945 device, iwlwifi.git commit 
#5a94b6d38100b7056a5a347e5c51359d924d305d

Best regards,
	Maxim Levitsky

Re: [BUG] Crda oopses the system

[Luis R. Rodriguez]

On Mon, May 4, 2009 at 10:04 PM, Maxim Levitsky <maximlevitsky@gmail.co=
m> wrote:
> Here what I see:
>
>
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109054] Process crd=
a (pid: 29344, threadinfo ffff88007deaa000, task ffff880067369600)
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109058] Stack:
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109061] =C2=A000000=
00000000034 ffff88003fb8a640 0000000000000000 ffff8800634f5c20
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109069] =C2=A0ffff8=
8007deaba28 ffffffffa00eb3d0 000004f87deab9c8 ffff88003fb8a640
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109077] =C2=A000000=
00000000000 ffff8800634f5c24 ffff8800634f5c2c ffff8800634f5c34
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109086] Call Trace:
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109091] =C2=A0[<fff=
fffffa00eb3d0>] nl80211_set_reg+0x100/0x2b0 [cfg80211]
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109107] =C2=A0[<fff=
fffff803e697f>] ? nla_parse+0xef/0x110
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109118] =C2=A0[<fff=
fffff80513716>] genl_rcv_msg+0x1b6/0x1f0
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109126] =C2=A0[<fff=
fffff80513560>] ? genl_rcv_msg+0x0/0x1f0
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109132] =C2=A0[<fff=
fffff80512d49>] netlink_rcv_skb+0x89/0xb0
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109140] =C2=A0[<fff=
fffff80513547>] genl_rcv+0x27/0x40
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109146] =C2=A0[<fff=
fffff805128a9>] ? netlink_sendmsg+0x159/0x300
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109153] =C2=A0[<fff=
fffff80512734>] netlink_unicast+0x2c4/0x2e0
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109161] =C2=A0[<fff=
fffff804f356e>] ? __alloc_skb+0x6e/0x150
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109169] =C2=A0[<fff=
fffff8051294e>] netlink_sendmsg+0x1fe/0x300
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109176] =C2=A0[<fff=
fffff804ea607>] sock_sendmsg+0x127/0x140
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109183] =C2=A0[<fff=
fffff8025be50>] ? autoremove_wake_function+0x0/0x40
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109193] =C2=A0[<fff=
fffff8029f986>] ? get_page_from_freelist+0x3b6/0x650
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109201] =C2=A0[<fff=
fffff80299985>] ? find_lock_page+0x25/0x70
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109208] =C2=A0[<fff=
fffff804e924b>] ? move_addr_to_kernel+0x2b/0x40
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109214] =C2=A0[<fff=
fffff804f4b8c>] ? verify_iovec+0x3c/0xd0
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109221] =C2=A0[<fff=
fffff804ea7a9>] sys_sendmsg+0x189/0x320
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109228] =C2=A0[<fff=
fffff804eb635>] ? move_addr_to_user+0x65/0x80
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109235] =C2=A0[<fff=
fffff802b1651>] ? handle_mm_fault+0x1e1/0x830
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109243] =C2=A0[<fff=
fffff803d8f21>] ? __up_read+0x91/0xb0
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109252] =C2=A0[<fff=
fffff8020bf2b>] system_call_fastpath+0x16/0x1b
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109261] Code: a1 00=
 00 00 0f be 50 39 0f be 70 38 48 c7 c7 70 07 0f a0 31 c0 e8 15 da 49 e=
0 e9 55 fe ff ff 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe <0f> 0b eb fe 48 8=
b 35 e5 38 01 00 4c 89 e7 e8 05 f9 ff ff 49 89
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109329] RIP =C2=A0[=
<ffffffffa00e4f58>] set_regdom+0x428/0x4c0 [cfg80211]
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109344] =C2=A0RSP <=
ffff88007deab978>
>> May =C2=A04 16:35:14 maxim-laptop kernel: [16939.109350] ---[ end tr=
ace 695815cef5ce0efe ]---
>>
>
> This happens @ my university where APs send country code, and thus NM=
 calls crda to apply it.
> (I already applied it in initscripts)
>
> intel 3945 device, iwlwifi.git commit
> #5a94b6d38100b7056a5a347e5c51359d924d305d

Please use wireless-testing.

  Luis
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Re: [BUG] Crda oopses the system

[Maxim Levitsky]

On Tue, 2009-05-05 at 11:46 -0700, Luis R. Rodriguez wrote:
> On Mon, May 4, 2009 at 10:04 PM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> > Here what I see:
> >
> >
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109054] Process crda (pid: 29344, threadinfo ffff88007deaa000, task ffff880067369600)
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109058] Stack:
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109061]  0000000000000034 ffff88003fb8a640 0000000000000000 ffff8800634f5c20
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109069]  ffff88007deaba28 ffffffffa00eb3d0 000004f87deab9c8 ffff88003fb8a640
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109077]  0000000000000000 ffff8800634f5c24 ffff8800634f5c2c ffff8800634f5c34
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109086] Call Trace:
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109091]  [<ffffffffa00eb3d0>] nl80211_set_reg+0x100/0x2b0 [cfg80211]
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109107]  [<ffffffff803e697f>] ? nla_parse+0xef/0x110
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109118]  [<ffffffff80513716>] genl_rcv_msg+0x1b6/0x1f0
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109126]  [<ffffffff80513560>] ? genl_rcv_msg+0x0/0x1f0
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109132]  [<ffffffff80512d49>] netlink_rcv_skb+0x89/0xb0
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109140]  [<ffffffff80513547>] genl_rcv+0x27/0x40
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109146]  [<ffffffff805128a9>] ? netlink_sendmsg+0x159/0x300
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109153]  [<ffffffff80512734>] netlink_unicast+0x2c4/0x2e0
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109161]  [<ffffffff804f356e>] ? __alloc_skb+0x6e/0x150
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109169]  [<ffffffff8051294e>] netlink_sendmsg+0x1fe/0x300
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109176]  [<ffffffff804ea607>] sock_sendmsg+0x127/0x140
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109183]  [<ffffffff8025be50>] ? autoremove_wake_function+0x0/0x40
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109193]  [<ffffffff8029f986>] ? get_page_from_freelist+0x3b6/0x650
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109201]  [<ffffffff80299985>] ? find_lock_page+0x25/0x70
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109208]  [<ffffffff804e924b>] ? move_addr_to_kernel+0x2b/0x40
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109214]  [<ffffffff804f4b8c>] ? verify_iovec+0x3c/0xd0
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109221]  [<ffffffff804ea7a9>] sys_sendmsg+0x189/0x320
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109228]  [<ffffffff804eb635>] ? move_addr_to_user+0x65/0x80
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109235]  [<ffffffff802b1651>] ? handle_mm_fault+0x1e1/0x830
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109243]  [<ffffffff803d8f21>] ? __up_read+0x91/0xb0
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109252]  [<ffffffff8020bf2b>] system_call_fastpath+0x16/0x1b
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109261] Code: a1 00 00 00 0f be 50 39 0f be 70 38 48 c7 c7 70 07 0f a0 31 c0 e8 15 da 49 e0 e9 55 fe ff ff 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe <0f> 0b eb fe 48 8b 35 e5 38 01 00 4c 89 e7 e8 05 f9 ff ff 49 89
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109329] RIP  [<ffffffffa00e4f58>] set_regdom+0x428/0x4c0 [cfg80211]
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109344]  RSP <ffff88007deab978>
> >> May  4 16:35:14 maxim-laptop kernel: [16939.109350] ---[ end trace 695815cef5ce0efe ]---
> >>
> >
> > This happens @ my university where APs send country code, and thus NM calls crda to apply it.
> > (I already applied it in initscripts)
> >
> > intel 3945 device, iwlwifi.git commit
> > #5a94b6d38100b7056a5a347e5c51359d924d305d
> 
> Please use wireless-testing.
> 
>   Luis


I did, wireless-testing as of yesterday, crashes kernel in same way

Regards,
	Maxim Levitsky

Re: [BUG] Crda oopses the system

[Pavel Roskin]

Hello!

(Dropping the Intel list; I not subscribed to it and I don't think it's
Intel specific)

On Wed, 2009-05-06 at 13:47 +0300, Maxim Levitsky wrote:
> On Tue, 2009-05-05 at 11:46 -0700, Luis R. Rodriguez wrote:
> > On Mon, May 4, 2009 at 10:04 PM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> > > Here what I see:
> > >
> > >
> > >> May  4 16:35:14 maxim-laptop kernel: [16939.109054] Process crda (pid: 29344, threadinfo ffff88007deaa000, task ffff880067369600)
> > >> May  4 16:35:14 maxim-laptop kernel: [16939.109058] Stack:
> > >> May  4 16:35:14 maxim-laptop kernel: [16939.109061]  0000000000000034 ffff88003fb8a640 0000000000000000 ffff8800634f5c20
> > >> May  4 16:35:14 maxim-laptop kernel: [16939.109069]  ffff88007deaba28 ffffffffa00eb3d0 000004f87deab9c8 ffff88003fb8a640
> > >> May  4 16:35:14 maxim-laptop kernel: [16939.109077]  0000000000000000 ffff8800634f5c24 ffff8800634f5c2c ffff8800634f5c34
> > >> May  4 16:35:14 maxim-laptop kernel: [16939.109086] Call Trace:
> > >> May  4 16:35:14 maxim-laptop kernel: [16939.109091]  [<ffffffffa00eb3d0>] nl80211_set_reg+0x100/0x2b0 [cfg80211]

It would be great if you run:
gdb /lib/modules/`uname -r`/kernel/net/wireless/cfg80211.ko

And then inside gdb:
l *nl80211_set_reg+0x100

And then send us the output.

-- 
Regards,
Pavel Roskin

Re: [BUG] Crda oopses the system

[Maxim Levitsky]

On Wed, 2009-05-06 at 16:34 -0400, Pavel Roskin wrote:
> gdb /lib/modules/`uname -r`/kernel/net/wireless/cfg80211.ko

I have recompiled the kernel with debugging info.

This is new backtrace:


> May  7 10:27:05 maxim-laptop kernel: [ 5411.203085] ------------[ cut here ]------------
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203096] kernel BUG at /home/maxim/software/kernel/linux-2.6/net/wireless/reg.c:2039!
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203103] invalid opcode: 0000 [#1] PREEMPT SMP 
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203115] last sysfs file: /sys/devices/platform/coretemp.1/temp1_input
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203121] CPU 0 
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203127] Modules linked in: iwl3945 iwlcore mac80211 cfg80211 cpufreq_stats af_packet nvidia(P) nfsd exportfs nfs lockd nfs_acl auth_rpcgss sunrpc usb_storage usb_libusual cpufreq_powersave cpufreq_conservative cpufreq_userspace acpi_cpufreq coretemp sbp2 snd_hda_codec_realtek snd_hda_intel joydev snd_hda_codec uvcvideo snd_hwdep videodev v4l1_compat acer_wmi rfkill v4l2_compat_ioctl32 sdhci_pci uhci_hcd snd_pcm backlight psmouse serio_raw ohci1394 sdhci iTCO_wdt iTCO_vendor_support snd_timer snd_page_alloc ehci_hcd usbcore evdev wmi fuse [last unloaded: cfg80211]
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203258] Pid: 20876, comm: crda Tainted: P           2.6.30-rc4-wl #58 Aspire 5720     
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203265] RIP: 0010:[<ffffffffa0c9611e>]  [<ffffffffa0c9611e>] set_regdom+0x43e/0x4d0 [cfg80211]
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203291] RSP: 0018:ffff8800638c1978  EFLAGS: 00010246
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203296] RAX: ffff88005176df68 RBX: ffff880034b601a0 RCX: ffffffffa0ca9540
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203302] RDX: ffff880034b60000 RSI: 0000000000000000 RDI: 0000000000000000
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203308] RBP: ffff8800638c1998 R08: 0000000000000001 R09: 0000000000000001
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203314] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88004f889a90
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203320] R13: ffff88007e18e6e0 R14: 0000000000000001 R15: 0000000000000001
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203326] FS:  00007f1c069c56f0(0000) GS:ffff880001025000(0000) knlGS:0000000000000000
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203333] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203338] CR2: 00007f1c0632fdb0 CR3: 000000007fa65000 CR4: 00000000000006e0
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203344] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203350] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203357] Process crda (pid: 20876, threadinfo ffff8800638c0000, task ffff880067093e80)
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203362] Stack:
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203366]  0000000000000000 ffff88004f889a90 0000000000000000 ffff88007e18e6e0
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203379]  ffff8800638c1a28 ffffffffa0c9c672 ffff88005e15ab40 ffff88004f889a90
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203393]  0000000000000000 ffff88007e18e6e4 ffff88007e18e6ec ffff88007e18e6f4
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203410] Call Trace:
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203416]  [<ffffffffa0c9c672>] nl80211_set_reg+0x112/0x2c0 [cfg80211]
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203436]  [<ffffffff80412c8f>] ? nla_parse+0xef/0x110
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203450]  [<ffffffff8054dac6>] genl_rcv_msg+0x1b6/0x1f0
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203462]  [<ffffffff8054d910>] ? genl_rcv_msg+0x0/0x1f0
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203471]  [<ffffffff8054d0e9>] netlink_rcv_skb+0x89/0xb0
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203479]  [<ffffffff8054d8ee>] genl_rcv+0x2e/0x50
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203488]  [<ffffffff8054c917>] ? netlink_unicast+0x117/0x2e0
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203498]  [<ffffffff8054cac4>] netlink_unicast+0x2c4/0x2e0
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203508]  [<ffffffff8052c4b3>] ? __alloc_skb+0x73/0x160
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203519]  [<ffffffff8054ccde>] netlink_sendmsg+0x1fe/0x300
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203528]  [<ffffffff80522f07>] sock_sendmsg+0x127/0x140
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203537]  [<ffffffff80522d61>] ? sock_recvmsg+0x141/0x160
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203546]  [<ffffffff80260ad0>] ? autoremove_wake_function+0x0/0x40
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203558]  [<ffffffff80293602>] ? __rcu_read_unlock+0xa2/0xc0
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203567]  [<ffffffff802730e9>] ? trace_hardirqs_on_caller+0x29/0x1c0
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203578]  [<ffffffff805219d0>] ? move_addr_to_kernel+0x30/0x40
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203588]  [<ffffffff8052db51>] ? verify_iovec+0x41/0xd0
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203597]  [<ffffffff805230ae>] sys_sendmsg+0x18e/0x320
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203607]  [<ffffffff805c4505>] ? _spin_unlock_irqrestore+0x65/0x80
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203619]  [<ffffffff805c77b1>] ? sub_preempt_count+0x51/0x60
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203628]  [<ffffffff80403c21>] ? __up_read+0x91/0xb0
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203639]  [<ffffffff802730e9>] ? trace_hardirqs_on_caller+0x29/0x1c0
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203648]  [<ffffffff805c3e4e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203658]  [<ffffffff8020c15b>] system_call_fastpath+0x16/0x1b
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203670] Code: 90 91 00 00 00 0f be b0 90 00 00 00 48 c7 c7 60 1b ca a0 31 c0 e8 13 9f 92 df e9 4f fe ff ff 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe <0f> 0b eb fe 48 8b 35 17 43 01 00 4c 89 e7 e8 df f8 ff ff 49 89 
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203815] RIP  [<ffffffffa0c9611e>] set_regdom+0x43e/0x4d0 [cfg80211]
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203834]  RSP <ffff8800638c1978>
> May  7 10:27:05 maxim-laptop kernel: [ 5411.203842] ---[ end trace 9723f71e550687a4 ]---
> 


This is GDB output - can be inaccurate - I have pulled latest wireless-testing , and rebuild kernel again.
I will read the source, and try to fix this
This is 100% reproducible  



> (gdb) l *nl80211_set_reg+0x112
> 0x96a2 is in nl80211_set_reg (/home/maxim/software/kernel/linux-2.6/net/wireless/nl80211.c:2587).
> 2582	
> 2583		BUG_ON(rule_idx != num_rules);
> 2584	
> 2585		mutex_lock(&cfg80211_mutex);
> 2586		r = set_regdom(rd);
> 2587		mutex_unlock(&cfg80211_mutex);
> 2588		return r;
> 2589	
> 2590	 bad_reg:
> 2591		kfree(rd);
> (gdb) 


Best regards,
	Maxim Levitsky

Re: [BUG] Crda oopses the system

[Luis R. Rodriguez]

On Sun, May 10, 2009 at 5:20 AM, Maxim Levitsky <maximlevitsky@gmail.co=
m> wrote:
> On Wed, 2009-05-06 at 16:34 -0400, Pavel Roskin wrote:
>> gdb /lib/modules/`uname -r`/kernel/net/wireless/cfg80211.ko
>
> I have recompiled the kernel with debugging info.
>
> This is new backtrace:
>
>
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203085] -----------=
-[ cut here ]------------
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203096] kernel BUG =
at /home/maxim/software/kernel/linux-2.6/net/wireless/reg.c:2039!
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203103] invalid opc=
ode: 0000 [#1] PREEMPT SMP
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203115] last sysfs =
file: /sys/devices/platform/coretemp.1/temp1_input
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203121] CPU 0
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203127] Modules lin=
ked in: iwl3945 iwlcore mac80211 cfg80211 cpufreq_stats af_packet nvidi=
a(P) nfsd exportfs nfs lockd nfs_acl auth_rpcgss sunrpc usb_storage usb=
_libusual cpufreq_powersave cpufreq_conservative cpufreq_userspace acpi=
_cpufreq coretemp sbp2 snd_hda_codec_realtek snd_hda_intel joydev snd_h=
da_codec uvcvideo snd_hwdep videodev v4l1_compat acer_wmi rfkill v4l2_c=
ompat_ioctl32 sdhci_pci uhci_hcd snd_pcm backlight psmouse serio_raw oh=
ci1394 sdhci iTCO_wdt iTCO_vendor_support snd_timer snd_page_alloc ehci=
_hcd usbcore evdev wmi fuse [last unloaded: cfg80211]
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203258] Pid: 20876,=
 comm: crda Tainted: P =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 2.6.30-rc4-wl=
 #58 Aspire 5720
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203265] RIP: 0010:[=
<ffffffffa0c9611e>] =C2=A0[<ffffffffa0c9611e>] set_regdom+0x43e/0x4d0 [=
cfg80211]
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203291] RSP: 0018:f=
fff8800638c1978 =C2=A0EFLAGS: 00010246
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203296] RAX: ffff88=
005176df68 RBX: ffff880034b601a0 RCX: ffffffffa0ca9540
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203302] RDX: ffff88=
0034b60000 RSI: 0000000000000000 RDI: 0000000000000000
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203308] RBP: ffff88=
00638c1998 R08: 0000000000000001 R09: 0000000000000001
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203314] R10: 000000=
0000000000 R11: 0000000000000000 R12: ffff88004f889a90
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203320] R13: ffff88=
007e18e6e0 R14: 0000000000000001 R15: 0000000000000001
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203326] FS: =C2=A00=
0007f1c069c56f0(0000) GS:ffff880001025000(0000) knlGS:0000000000000000
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203333] CS: =C2=A00=
010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203338] CR2: 00007f=
1c0632fdb0 CR3: 000000007fa65000 CR4: 00000000000006e0
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203344] DR0: 000000=
0000000000 DR1: 0000000000000000 DR2: 0000000000000000
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203350] DR3: 000000=
0000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203357] Process crd=
a (pid: 20876, threadinfo ffff8800638c0000, task ffff880067093e80)
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203362] Stack:
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203366] =C2=A000000=
00000000000 ffff88004f889a90 0000000000000000 ffff88007e18e6e0
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203379] =C2=A0ffff8=
800638c1a28 ffffffffa0c9c672 ffff88005e15ab40 ffff88004f889a90
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203393] =C2=A000000=
00000000000 ffff88007e18e6e4 ffff88007e18e6ec ffff88007e18e6f4
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203410] Call Trace:
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203416] =C2=A0[<fff=
fffffa0c9c672>] nl80211_set_reg+0x112/0x2c0 [cfg80211]
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203436] =C2=A0[<fff=
fffff80412c8f>] ? nla_parse+0xef/0x110
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203450] =C2=A0[<fff=
fffff8054dac6>] genl_rcv_msg+0x1b6/0x1f0
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203462] =C2=A0[<fff=
fffff8054d910>] ? genl_rcv_msg+0x0/0x1f0
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203471] =C2=A0[<fff=
fffff8054d0e9>] netlink_rcv_skb+0x89/0xb0
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203479] =C2=A0[<fff=
fffff8054d8ee>] genl_rcv+0x2e/0x50
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203488] =C2=A0[<fff=
fffff8054c917>] ? netlink_unicast+0x117/0x2e0
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203498] =C2=A0[<fff=
fffff8054cac4>] netlink_unicast+0x2c4/0x2e0
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203508] =C2=A0[<fff=
fffff8052c4b3>] ? __alloc_skb+0x73/0x160
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203519] =C2=A0[<fff=
fffff8054ccde>] netlink_sendmsg+0x1fe/0x300
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203528] =C2=A0[<fff=
fffff80522f07>] sock_sendmsg+0x127/0x140
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203537] =C2=A0[<fff=
fffff80522d61>] ? sock_recvmsg+0x141/0x160
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203546] =C2=A0[<fff=
fffff80260ad0>] ? autoremove_wake_function+0x0/0x40
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203558] =C2=A0[<fff=
fffff80293602>] ? __rcu_read_unlock+0xa2/0xc0
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203567] =C2=A0[<fff=
fffff802730e9>] ? trace_hardirqs_on_caller+0x29/0x1c0
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203578] =C2=A0[<fff=
fffff805219d0>] ? move_addr_to_kernel+0x30/0x40
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203588] =C2=A0[<fff=
fffff8052db51>] ? verify_iovec+0x41/0xd0
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203597] =C2=A0[<fff=
fffff805230ae>] sys_sendmsg+0x18e/0x320
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203607] =C2=A0[<fff=
fffff805c4505>] ? _spin_unlock_irqrestore+0x65/0x80
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203619] =C2=A0[<fff=
fffff805c77b1>] ? sub_preempt_count+0x51/0x60
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203628] =C2=A0[<fff=
fffff80403c21>] ? __up_read+0x91/0xb0
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203639] =C2=A0[<fff=
fffff802730e9>] ? trace_hardirqs_on_caller+0x29/0x1c0
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203648] =C2=A0[<fff=
fffff805c3e4e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203658] =C2=A0[<fff=
fffff8020c15b>] system_call_fastpath+0x16/0x1b
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203670] Code: 90 91=
 00 00 00 0f be b0 90 00 00 00 48 c7 c7 60 1b ca a0 31 c0 e8 13 9f 92 d=
f e9 4f fe ff ff 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe <0f> 0b eb fe 48 8=
b 35 17 43 01 00 4c 89 e7 e8 df f8 ff ff 49 89
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203815] RIP =C2=A0[=
<ffffffffa0c9611e>] set_regdom+0x43e/0x4d0 [cfg80211]
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203834] =C2=A0RSP <=
ffff8800638c1978>
>> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203842] ---[ end tr=
ace 9723f71e550687a4 ]---
>>
>
>
> This is GDB output - can be inaccurate - I have pulled latest wireles=
s-testing , and rebuild kernel again.
> I will read the source, and try to fix this
> This is 100% reproducible
>
>
>
>> (gdb) l *nl80211_set_reg+0x112
>> 0x96a2 is in nl80211_set_reg (/home/maxim/software/kernel/linux-2.6/=
net/wireless/nl80211.c:2587).
>> 2582
>> 2583 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0BUG_ON(rule_idx !=3D num_rule=
s);
>> 2584
>> 2585 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0mutex_lock(&cfg80211_mutex);
>> 2586 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0r =3D set_regdom(rd);
>> 2587 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0mutex_unlock(&cfg80211_mutex)=
;
>> 2588 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0return r;
>> 2589
>> 2590 =C2=A0 bad_reg:
>> 2591 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0kfree(rd);
>> (gdb)
>

Hm I don't see a BUG_ON at my net/wireless/reg.c:2039, can you please
try with wireless-testing or paste the line 2039 in your
net/wrieless/reg.c. Also if you can provide steps to how to get the
code you have and how to reproduce it would help.

  Luis
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Re: [BUG] Crda oopses the system

[Maxim Levitsky]

On Sun, 2009-05-10 at 11:33 -0700, Luis R. Rodriguez wrote:
> On Sun, May 10, 2009 at 5:20 AM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> > On Wed, 2009-05-06 at 16:34 -0400, Pavel Roskin wrote:
> >> gdb /lib/modules/`uname -r`/kernel/net/wireless/cfg80211.ko
> >
> > I have recompiled the kernel with debugging info.
> >
> > This is new backtrace:
> >
> >
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203085] ------------[ cut here ]------------
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203096] kernel BUG at /home/maxim/software/kernel/linux-2.6/net/wireless/reg.c:2039!
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203103] invalid opcode: 0000 [#1] PREEMPT SMP
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203115] last sysfs file: /sys/devices/platform/coretemp.1/temp1_input
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203121] CPU 0
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203127] Modules linked in: iwl3945 iwlcore mac80211 cfg80211 cpufreq_stats af_packet nvidia(P) nfsd exportfs nfs lockd nfs_acl auth_rpcgss sunrpc usb_storage usb_libusual cpufreq_powersave cpufreq_conservative cpufreq_userspace acpi_cpufreq coretemp sbp2 snd_hda_codec_realtek snd_hda_intel joydev snd_hda_codec uvcvideo snd_hwdep videodev v4l1_compat acer_wmi rfkill v4l2_compat_ioctl32 sdhci_pci uhci_hcd snd_pcm backlight psmouse serio_raw ohci1394 sdhci iTCO_wdt iTCO_vendor_support snd_timer snd_page_alloc ehci_hcd usbcore evdev wmi fuse [last unloaded: cfg80211]
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203258] Pid: 20876, comm: crda Tainted: P           2.6.30-rc4-wl #58 Aspire 5720
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203265] RIP: 0010:[<ffffffffa0c9611e>]  [<ffffffffa0c9611e>] set_regdom+0x43e/0x4d0 [cfg80211]
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203291] RSP: 0018:ffff8800638c1978  EFLAGS: 00010246
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203296] RAX: ffff88005176df68 RBX: ffff880034b601a0 RCX: ffffffffa0ca9540
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203302] RDX: ffff880034b60000 RSI: 0000000000000000 RDI: 0000000000000000
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203308] RBP: ffff8800638c1998 R08: 0000000000000001 R09: 0000000000000001
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203314] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88004f889a90
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203320] R13: ffff88007e18e6e0 R14: 0000000000000001 R15: 0000000000000001
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203326] FS:  00007f1c069c56f0(0000) GS:ffff880001025000(0000) knlGS:0000000000000000
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203333] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203338] CR2: 00007f1c0632fdb0 CR3: 000000007fa65000 CR4: 00000000000006e0
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203344] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203350] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203357] Process crda (pid: 20876, threadinfo ffff8800638c0000, task ffff880067093e80)
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203362] Stack:
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203366]  0000000000000000 ffff88004f889a90 0000000000000000 ffff88007e18e6e0
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203379]  ffff8800638c1a28 ffffffffa0c9c672 ffff88005e15ab40 ffff88004f889a90
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203393]  0000000000000000 ffff88007e18e6e4 ffff88007e18e6ec ffff88007e18e6f4
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203410] Call Trace:
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203416]  [<ffffffffa0c9c672>] nl80211_set_reg+0x112/0x2c0 [cfg80211]
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203436]  [<ffffffff80412c8f>] ? nla_parse+0xef/0x110
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203450]  [<ffffffff8054dac6>] genl_rcv_msg+0x1b6/0x1f0
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203462]  [<ffffffff8054d910>] ? genl_rcv_msg+0x0/0x1f0
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203471]  [<ffffffff8054d0e9>] netlink_rcv_skb+0x89/0xb0
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203479]  [<ffffffff8054d8ee>] genl_rcv+0x2e/0x50
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203488]  [<ffffffff8054c917>] ? netlink_unicast+0x117/0x2e0
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203498]  [<ffffffff8054cac4>] netlink_unicast+0x2c4/0x2e0
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203508]  [<ffffffff8052c4b3>] ? __alloc_skb+0x73/0x160
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203519]  [<ffffffff8054ccde>] netlink_sendmsg+0x1fe/0x300
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203528]  [<ffffffff80522f07>] sock_sendmsg+0x127/0x140
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203537]  [<ffffffff80522d61>] ? sock_recvmsg+0x141/0x160
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203546]  [<ffffffff80260ad0>] ? autoremove_wake_function+0x0/0x40
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203558]  [<ffffffff80293602>] ? __rcu_read_unlock+0xa2/0xc0
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203567]  [<ffffffff802730e9>] ? trace_hardirqs_on_caller+0x29/0x1c0
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203578]  [<ffffffff805219d0>] ? move_addr_to_kernel+0x30/0x40
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203588]  [<ffffffff8052db51>] ? verify_iovec+0x41/0xd0
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203597]  [<ffffffff805230ae>] sys_sendmsg+0x18e/0x320
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203607]  [<ffffffff805c4505>] ? _spin_unlock_irqrestore+0x65/0x80
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203619]  [<ffffffff805c77b1>] ? sub_preempt_count+0x51/0x60
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203628]  [<ffffffff80403c21>] ? __up_read+0x91/0xb0
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203639]  [<ffffffff802730e9>] ? trace_hardirqs_on_caller+0x29/0x1c0
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203648]  [<ffffffff805c3e4e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203658]  [<ffffffff8020c15b>] system_call_fastpath+0x16/0x1b
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203670] Code: 90 91 00 00 00 0f be b0 90 00 00 00 48 c7 c7 60 1b ca a0 31 c0 e8 13 9f 92 df e9 4f fe ff ff 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe <0f> 0b eb fe 48 8b 35 17 43 01 00 4c 89 e7 e8 df f8 ff ff 49 89
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203815] RIP  [<ffffffffa0c9611e>] set_regdom+0x43e/0x4d0 [cfg80211]
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203834]  RSP <ffff8800638c1978>
> >> May  7 10:27:05 maxim-laptop kernel: [ 5411.203842] ---[ end trace 9723f71e550687a4 ]---
> >>
> >
> >
> > This is GDB output - can be inaccurate - I have pulled latest wireless-testing , and rebuild kernel again.
> > I will read the source, and try to fix this
> > This is 100% reproducible
> >
> >
> >
> >> (gdb) l *nl80211_set_reg+0x112
> >> 0x96a2 is in nl80211_set_reg (/home/maxim/software/kernel/linux-2.6/net/wireless/nl80211.c:2587).
> >> 2582
> >> 2583          BUG_ON(rule_idx != num_rules);
> >> 2584
> >> 2585          mutex_lock(&cfg80211_mutex);
> >> 2586          r = set_regdom(rd);
> >> 2587          mutex_unlock(&cfg80211_mutex);
> >> 2588          return r;
> >> 2589
> >> 2590   bad_reg:
> >> 2591          kfree(rd);
> >> (gdb)
> >
> 
> Hm I don't see a BUG_ON at my net/wireless/reg.c:2039, can you please
> try with wireless-testing or paste the line 2039 in your
> net/wrieless/reg.c. Also if you can provide steps to how to get the
> code you have and how to reproduce it would help.
> 
>   Luis

Sorry for confusion....
This is iwlwifi.git tree.


Like I said, backtrace, and gdb output are from slightly different
kernels.


My university AP broadcasts the reg domain in beacons.
This always makes this oops.
(I use lates -git NM, and wpa_supplicant)

I will investigate this deeply, currently the above information just
isn't enough to see what is going on.

Thanks,
	Best regards,
		Maxim Levitsky

Re: [BUG] Crda oopses the system

[Luis R. Rodriguez]

On Sun, May 10, 2009 at 12:34 PM, Maxim Levitsky
<maximlevitsky@gmail.com> wrote:
> On Sun, 2009-05-10 at 11:33 -0700, Luis R. Rodriguez wrote:
>> On Sun, May 10, 2009 at 5:20 AM, Maxim Levitsky <maximlevitsky@gmail=
=2Ecom> wrote:
>> > On Wed, 2009-05-06 at 16:34 -0400, Pavel Roskin wrote:
>> >> gdb /lib/modules/`uname -r`/kernel/net/wireless/cfg80211.ko
>> >
>> > I have recompiled the kernel with debugging info.
>> >
>> > This is new backtrace:
>> >
>> >
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203085] --------=
----[ cut here ]------------
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203096] kernel B=
UG at /home/maxim/software/kernel/linux-2.6/net/wireless/reg.c:2039!
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203103] invalid =
opcode: 0000 [#1] PREEMPT SMP
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203115] last sys=
fs file: /sys/devices/platform/coretemp.1/temp1_input
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203121] CPU 0
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203127] Modules =
linked in: iwl3945 iwlcore mac80211 cfg80211 cpufreq_stats af_packet nv=
idia(P) nfsd exportfs nfs lockd nfs_acl auth_rpcgss sunrpc usb_storage =
usb_libusual cpufreq_powersave cpufreq_conservative cpufreq_userspace a=
cpi_cpufreq coretemp sbp2 snd_hda_codec_realtek snd_hda_intel joydev sn=
d_hda_codec uvcvideo snd_hwdep videodev v4l1_compat acer_wmi rfkill v4l=
2_compat_ioctl32 sdhci_pci uhci_hcd snd_pcm backlight psmouse serio_raw=
 ohci1394 sdhci iTCO_wdt iTCO_vendor_support snd_timer snd_page_alloc e=
hci_hcd usbcore evdev wmi fuse [last unloaded: cfg80211]
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203258] Pid: 208=
76, comm: crda Tainted: P =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 2.6.30-rc4=
-wl #58 Aspire 5720
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203265] RIP: 001=
0:[<ffffffffa0c9611e>] =C2=A0[<ffffffffa0c9611e>] set_regdom+0x43e/0x4d=
0 [cfg80211]
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203291] RSP: 001=
8:ffff8800638c1978 =C2=A0EFLAGS: 00010246
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203296] RAX: fff=
f88005176df68 RBX: ffff880034b601a0 RCX: ffffffffa0ca9540
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203302] RDX: fff=
f880034b60000 RSI: 0000000000000000 RDI: 0000000000000000
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203308] RBP: fff=
f8800638c1998 R08: 0000000000000001 R09: 0000000000000001
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203314] R10: 000=
0000000000000 R11: 0000000000000000 R12: ffff88004f889a90
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203320] R13: fff=
f88007e18e6e0 R14: 0000000000000001 R15: 0000000000000001
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203326] FS: =C2=A0=
00007f1c069c56f0(0000) GS:ffff880001025000(0000) knlGS:0000000000000000
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203333] CS: =C2=A0=
0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203338] CR2: 000=
07f1c0632fdb0 CR3: 000000007fa65000 CR4: 00000000000006e0
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203344] DR0: 000=
0000000000000 DR1: 0000000000000000 DR2: 0000000000000000
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203350] DR3: 000=
0000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203357] Process =
crda (pid: 20876, threadinfo ffff8800638c0000, task ffff880067093e80)
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203362] Stack:
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203366] =C2=A000=
00000000000000 ffff88004f889a90 0000000000000000 ffff88007e18e6e0
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203379] =C2=A0ff=
ff8800638c1a28 ffffffffa0c9c672 ffff88005e15ab40 ffff88004f889a90
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203393] =C2=A000=
00000000000000 ffff88007e18e6e4 ffff88007e18e6ec ffff88007e18e6f4
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203410] Call Tra=
ce:
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203416] =C2=A0[<=
ffffffffa0c9c672>] nl80211_set_reg+0x112/0x2c0 [cfg80211]
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203436] =C2=A0[<=
ffffffff80412c8f>] ? nla_parse+0xef/0x110
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203450] =C2=A0[<=
ffffffff8054dac6>] genl_rcv_msg+0x1b6/0x1f0
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203462] =C2=A0[<=
ffffffff8054d910>] ? genl_rcv_msg+0x0/0x1f0
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203471] =C2=A0[<=
ffffffff8054d0e9>] netlink_rcv_skb+0x89/0xb0
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203479] =C2=A0[<=
ffffffff8054d8ee>] genl_rcv+0x2e/0x50
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203488] =C2=A0[<=
ffffffff8054c917>] ? netlink_unicast+0x117/0x2e0
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203498] =C2=A0[<=
ffffffff8054cac4>] netlink_unicast+0x2c4/0x2e0
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203508] =C2=A0[<=
ffffffff8052c4b3>] ? __alloc_skb+0x73/0x160
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203519] =C2=A0[<=
ffffffff8054ccde>] netlink_sendmsg+0x1fe/0x300
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203528] =C2=A0[<=
ffffffff80522f07>] sock_sendmsg+0x127/0x140
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203537] =C2=A0[<=
ffffffff80522d61>] ? sock_recvmsg+0x141/0x160
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203546] =C2=A0[<=
ffffffff80260ad0>] ? autoremove_wake_function+0x0/0x40
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203558] =C2=A0[<=
ffffffff80293602>] ? __rcu_read_unlock+0xa2/0xc0
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203567] =C2=A0[<=
ffffffff802730e9>] ? trace_hardirqs_on_caller+0x29/0x1c0
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203578] =C2=A0[<=
ffffffff805219d0>] ? move_addr_to_kernel+0x30/0x40
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203588] =C2=A0[<=
ffffffff8052db51>] ? verify_iovec+0x41/0xd0
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203597] =C2=A0[<=
ffffffff805230ae>] sys_sendmsg+0x18e/0x320
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203607] =C2=A0[<=
ffffffff805c4505>] ? _spin_unlock_irqrestore+0x65/0x80
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203619] =C2=A0[<=
ffffffff805c77b1>] ? sub_preempt_count+0x51/0x60
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203628] =C2=A0[<=
ffffffff80403c21>] ? __up_read+0x91/0xb0
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203639] =C2=A0[<=
ffffffff802730e9>] ? trace_hardirqs_on_caller+0x29/0x1c0
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203648] =C2=A0[<=
ffffffff805c3e4e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203658] =C2=A0[<=
ffffffff8020c15b>] system_call_fastpath+0x16/0x1b
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203670] Code: 90=
 91 00 00 00 0f be b0 90 00 00 00 48 c7 c7 60 1b ca a0 31 c0 e8 13 9f 9=
2 df e9 4f fe ff ff 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe <0f> 0b eb fe 4=
8 8b 35 17 43 01 00 4c 89 e7 e8 df f8 ff ff 49 89
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203815] RIP =C2=A0=
[<ffffffffa0c9611e>] set_regdom+0x43e/0x4d0 [cfg80211]
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203834] =C2=A0RS=
P <ffff8800638c1978>
>> >> May =C2=A07 10:27:05 maxim-laptop kernel: [ 5411.203842] ---[ end=
 trace 9723f71e550687a4 ]---
>> >>
>> >
>> >
>> > This is GDB output - can be inaccurate - I have pulled latest wire=
less-testing , and rebuild kernel again.
>> > I will read the source, and try to fix this
>> > This is 100% reproducible
>> >
>> >
>> >
>> >> (gdb) l *nl80211_set_reg+0x112
>> >> 0x96a2 is in nl80211_set_reg (/home/maxim/software/kernel/linux-2=
=2E6/net/wireless/nl80211.c:2587).
>> >> 2582
>> >> 2583 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0BUG_ON(rule_idx !=3D num_r=
ules);
>> >> 2584
>> >> 2585 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0mutex_lock(&cfg80211_mutex=
);
>> >> 2586 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0r =3D set_regdom(rd);
>> >> 2587 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0mutex_unlock(&cfg80211_mut=
ex);
>> >> 2588 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0return r;
>> >> 2589
>> >> 2590 =C2=A0 bad_reg:
>> >> 2591 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0kfree(rd);
>> >> (gdb)
>> >
>>
>> Hm I don't see a BUG_ON at my net/wireless/reg.c:2039, can you pleas=
e
>> try with wireless-testing or paste the line 2039 in your
>> net/wrieless/reg.c. Also if you can provide steps to how to get the
>> code you have and how to reproduce it would help.
>>
>> =C2=A0 Luis
>
> Sorry for confusion....
> This is iwlwifi.git tree.

Like I said before please use wireless-testing, I don't know what goes
into that tree or if the fixes which I have posted get propagated.

  Luis
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Re: [BUG] Crda oopses the system

[Maxim Levitsky]

[-- Attachment #1: Type: text/plain, Size: 772 bytes --]

On Sun, 2009-05-10 at 12:36 -0700, Luis R. Rodriguez wrote:
> On Sun, May 10, 2009 at 12:34 PM, Maxim Levitsky
> <maximlevitsky@gmail.com> wrote:
> > On Sun, 2009-05-10 at 11:33 -0700, Luis R. Rodriguez wrote:
> >> On Sun, May 10, 2009 at 5:20 AM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> >> > On Wed, 2009-05-06 at 16:34 -0400, Pavel Roskin wrote:
> >> >> gdb /lib/modules/`uname -r`/kernel/net/wireless/cfg80211.ko
> >> >
> >> > I have recompiled the kernel with debugging info.
> >> >
> >> > This is new backtrace:

Ok, here is what I found:

The real BUG_ON that fires up is at 

wireless/reg.c: __set_regdom: BUG_ON(!country_ie_regdomain)

Confirmed by replacing it with printk.


I attach a beacon sample that triggers this:


Best regards,
	Maxim Levitsky

[-- Attachment #2: beacon.pcap --]
[-- Type: application/octet-stream, Size: 248 bytes --]

Re: [BUG] Crda oopses the system

[Luis R. Rodriguez]

On Tue, May 12, 2009 at 8:05 AM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> On Sun, 2009-05-10 at 12:36 -0700, Luis R. Rodriguez wrote:
>> On Sun, May 10, 2009 at 12:34 PM, Maxim Levitsky
>> <maximlevitsky@gmail.com> wrote:
>> > On Sun, 2009-05-10 at 11:33 -0700, Luis R. Rodriguez wrote:
>> >> On Sun, May 10, 2009 at 5:20 AM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
>> >> > On Wed, 2009-05-06 at 16:34 -0400, Pavel Roskin wrote:
>> >> >> gdb /lib/modules/`uname -r`/kernel/net/wireless/cfg80211.ko
>> >> >
>> >> > I have recompiled the kernel with debugging info.
>> >> >
>> >> > This is new backtrace:
>
> Ok, here is what I found:
>
> The real BUG_ON that fires up is at
>
> wireless/reg.c: __set_regdom: BUG_ON(!country_ie_regdomain)
>
> Confirmed by replacing it with printk.
>
>
> I attach a beacon sample that triggers this:

Thanks for that. Was this from wireless-testing? If so as of what SHA1
sum? Can you provide steps to reproduce? What AP? What card?

  Luis

Re: [BUG] Crda oopses the system

[Maxim Levitsky]

On Tue, 2009-05-12 at 10:24 -0700, Luis R. Rodriguez wrote:
> On Tue, May 12, 2009 at 8:05 AM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> > On Sun, 2009-05-10 at 12:36 -0700, Luis R. Rodriguez wrote:
> >> On Sun, May 10, 2009 at 12:34 PM, Maxim Levitsky
> >> <maximlevitsky@gmail.com> wrote:
> >> > On Sun, 2009-05-10 at 11:33 -0700, Luis R. Rodriguez wrote:
> >> >> On Sun, May 10, 2009 at 5:20 AM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> >> >> > On Wed, 2009-05-06 at 16:34 -0400, Pavel Roskin wrote:
> >> >> >> gdb /lib/modules/`uname -r`/kernel/net/wireless/cfg80211.ko
> >> >> >
> >> >> > I have recompiled the kernel with debugging info.
> >> >> >
> >> >> > This is new backtrace:
> >
> > Ok, here is what I found:
> >
> > The real BUG_ON that fires up is at
> >
> > wireless/reg.c: __set_regdom: BUG_ON(!country_ie_regdomain)
> >
> > Confirmed by replacing it with printk.
> >
> >
> > I attach a beacon sample that triggers this:
> 
> Thanks for that. Was this from wireless-testing? If so as of what SHA1
> sum? Can you provide steps to reproduce? What AP? What card?
wireless-testing, b2382a4aeff07a481ccf860e4f716b48b52e3781

Steps to reproduce is to connect to an AP that transmits a beacon frame
like I attached.
Happens always.

-git NM and wpa_supplicant, running normally.


What AP? I don't know myself.

What card?,  iwl3945


Best regards,
	Maxim Levitsky

Re: [BUG] Crda oopses the system

[Luis R. Rodriguez]

On Tue, May 12, 2009 at 10:34 AM, Maxim Levitsky
<maximlevitsky@gmail.com> wrote:
> On Tue, 2009-05-12 at 10:24 -0700, Luis R. Rodriguez wrote:
>> On Tue, May 12, 2009 at 8:05 AM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
>> > On Sun, 2009-05-10 at 12:36 -0700, Luis R. Rodriguez wrote:
>> >> On Sun, May 10, 2009 at 12:34 PM, Maxim Levitsky
>> >> <maximlevitsky@gmail.com> wrote:
>> >> > On Sun, 2009-05-10 at 11:33 -0700, Luis R. Rodriguez wrote:
>> >> >> On Sun, May 10, 2009 at 5:20 AM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
>> >> >> > On Wed, 2009-05-06 at 16:34 -0400, Pavel Roskin wrote:
>> >> >> >> gdb /lib/modules/`uname -r`/kernel/net/wireless/cfg80211.ko
>> >> >> >
>> >> >> > I have recompiled the kernel with debugging info.
>> >> >> >
>> >> >> > This is new backtrace:
>> >
>> > Ok, here is what I found:
>> >
>> > The real BUG_ON that fires up is at
>> >
>> > wireless/reg.c: __set_regdom: BUG_ON(!country_ie_regdomain)
>> >
>> > Confirmed by replacing it with printk.
>> >
>> >
>> > I attach a beacon sample that triggers this:
>>
>> Thanks for that. Was this from wireless-testing? If so as of what SHA1
>> sum? Can you provide steps to reproduce? What AP? What card?
> wireless-testing, b2382a4aeff07a481ccf860e4f716b48b52e3781

That HEAD is buggy, its missing a fix for the minstrel/pid fix.
Although since you are running iwl3945 it explains why you haven't
seen that oops.

Will look into this -- thanks. How easy can you reproduce BTW? Does it
happen immediately upon assoc? Does it happen with other APs at the
university?

  Luis

Re: [BUG] Crda oopses the system

[Maxim Levitsky]

On Tue, 2009-05-12 at 15:00 -0700, Luis R. Rodriguez wrote:
> On Tue, May 12, 2009 at 10:34 AM, Maxim Levitsky
> <maximlevitsky@gmail.com> wrote:
> > On Tue, 2009-05-12 at 10:24 -0700, Luis R. Rodriguez wrote:
> >> On Tue, May 12, 2009 at 8:05 AM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> >> > On Sun, 2009-05-10 at 12:36 -0700, Luis R. Rodriguez wrote:
> >> >> On Sun, May 10, 2009 at 12:34 PM, Maxim Levitsky
> >> >> <maximlevitsky@gmail.com> wrote:
> >> >> > On Sun, 2009-05-10 at 11:33 -0700, Luis R. Rodriguez wrote:
> >> >> >> On Sun, May 10, 2009 at 5:20 AM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> >> >> >> > On Wed, 2009-05-06 at 16:34 -0400, Pavel Roskin wrote:
> >> >> >> >> gdb /lib/modules/`uname -r`/kernel/net/wireless/cfg80211.ko
> >> >> >> >
> >> >> >> > I have recompiled the kernel with debugging info.
> >> >> >> >
> >> >> >> > This is new backtrace:
> >> >
> >> > Ok, here is what I found:
> >> >
> >> > The real BUG_ON that fires up is at
> >> >
> >> > wireless/reg.c: __set_regdom: BUG_ON(!country_ie_regdomain)
> >> >
> >> > Confirmed by replacing it with printk.
> >> >
> >> >
> >> > I attach a beacon sample that triggers this:
> >>
> >> Thanks for that. Was this from wireless-testing? If so as of what SHA1
> >> sum? Can you provide steps to reproduce? What AP? What card?
> > wireless-testing, b2382a4aeff07a481ccf860e4f716b48b52e3781
> 
> That HEAD is buggy, its missing a fix for the minstrel/pid fix.
> Although since you are running iwl3945 it explains why you haven't
> seen that oops.
> 
> Will look into this -- thanks. How easy can you reproduce BTW? Does it
> happen immediately upon assoc? Does it happen with other APs at the
> university?
Happens always when I try to associate.
In fact, after a boot, this oops is in dmesg, and whole system
semi-frozen. (can't get root, etc probably due to locks held)


Other APs, I don't see many other APs there, (you mean other essids,
right?)

Most of them are encrypted anyway.


I have just compiled HEAD of wireless-testing, I see how well it will
work tomorrow.


Thanks in advance,
	Maxim Levitsky
> 
>   Luis

Re: [BUG] Crda oopses the system

[Luis R. Rodriguez]

On Tue, May 12, 2009 at 3:07 PM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> On Tue, 2009-05-12 at 15:00 -0700, Luis R. Rodriguez wrote:
>> On Tue, May 12, 2009 at 10:34 AM, Maxim Levitsky
>> <maximlevitsky@gmail.com> wrote:
>> > On Tue, 2009-05-12 at 10:24 -0700, Luis R. Rodriguez wrote:
>> >> On Tue, May 12, 2009 at 8:05 AM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
>> >> > On Sun, 2009-05-10 at 12:36 -0700, Luis R. Rodriguez wrote:
>> >> >> On Sun, May 10, 2009 at 12:34 PM, Maxim Levitsky
>> >> >> <maximlevitsky@gmail.com> wrote:
>> >> >> > On Sun, 2009-05-10 at 11:33 -0700, Luis R. Rodriguez wrote:
>> >> >> >> On Sun, May 10, 2009 at 5:20 AM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
>> >> >> >> > On Wed, 2009-05-06 at 16:34 -0400, Pavel Roskin wrote:
>> >> >> >> >> gdb /lib/modules/`uname -r`/kernel/net/wireless/cfg80211.ko
>> >> >> >> >
>> >> >> >> > I have recompiled the kernel with debugging info.
>> >> >> >> >
>> >> >> >> > This is new backtrace:
>> >> >
>> >> > Ok, here is what I found:
>> >> >
>> >> > The real BUG_ON that fires up is at
>> >> >
>> >> > wireless/reg.c: __set_regdom: BUG_ON(!country_ie_regdomain)
>> >> >
>> >> > Confirmed by replacing it with printk.
>> >> >
>> >> >
>> >> > I attach a beacon sample that triggers this:
>> >>
>> >> Thanks for that. Was this from wireless-testing? If so as of what SHA1
>> >> sum? Can you provide steps to reproduce? What AP? What card?
>> > wireless-testing, b2382a4aeff07a481ccf860e4f716b48b52e3781
>>
>> That HEAD is buggy, its missing a fix for the minstrel/pid fix.
>> Although since you are running iwl3945 it explains why you haven't
>> seen that oops.
>>
>> Will look into this -- thanks. How easy can you reproduce BTW? Does it
>> happen immediately upon assoc? Does it happen with other APs at the
>> university?
> Happens always when I try to associate.

Great so it will be easy to confirm a fix. Can you please try the 4
patches I just posted? I haven't finished reviewing your case but so
far from the pcap review (which was really helpful) I don't see
anything funky from the beacon except that the FCS is bad. But that
shouldn't matter.

Anyway please try the patches I posted and I'll finish reviewing this
in the meantime.

> Other APs, I don't see many other APs there, (you mean other essids,
> right?)

I meant other APs at the University on the same network.

> Most of them are encrypted anyway.

OK this should not matter.

  Luis

Re: [BUG] Crda oopses the system

[Maxim Levitsky]

On Wed, 2009-05-13 at 14:28 -0700, Luis R. Rodriguez wrote:
> On Tue, May 12, 2009 at 3:07 PM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> > On Tue, 2009-05-12 at 15:00 -0700, Luis R. Rodriguez wrote:
> >> On Tue, May 12, 2009 at 10:34 AM, Maxim Levitsky
> >> <maximlevitsky@gmail.com> wrote:
> >> > On Tue, 2009-05-12 at 10:24 -0700, Luis R. Rodriguez wrote:
> >> >> On Tue, May 12, 2009 at 8:05 AM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> >> >> > On Sun, 2009-05-10 at 12:36 -0700, Luis R. Rodriguez wrote:
> >> >> >> On Sun, May 10, 2009 at 12:34 PM, Maxim Levitsky
> >> >> >> <maximlevitsky@gmail.com> wrote:
> >> >> >> > On Sun, 2009-05-10 at 11:33 -0700, Luis R. Rodriguez wrote:
> >> >> >> >> On Sun, May 10, 2009 at 5:20 AM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> >> >> >> >> > On Wed, 2009-05-06 at 16:34 -0400, Pavel Roskin wrote:
> >> >> >> >> >> gdb /lib/modules/`uname -r`/kernel/net/wireless/cfg80211.ko
> >> >> >> >> >
> >> >> >> >> > I have recompiled the kernel with debugging info.
> >> >> >> >> >
> >> >> >> >> > This is new backtrace:
> >> >> >
> >> >> > Ok, here is what I found:
> >> >> >
> >> >> > The real BUG_ON that fires up is at
> >> >> >
> >> >> > wireless/reg.c: __set_regdom: BUG_ON(!country_ie_regdomain)
> >> >> >
> >> >> > Confirmed by replacing it with printk.
> >> >> >
> >> >> >
> >> >> > I attach a beacon sample that triggers this:
> >> >>
> >> >> Thanks for that. Was this from wireless-testing? If so as of what SHA1
> >> >> sum? Can you provide steps to reproduce? What AP? What card?
> >> > wireless-testing, b2382a4aeff07a481ccf860e4f716b48b52e3781
> >>
> >> That HEAD is buggy, its missing a fix for the minstrel/pid fix.
> >> Although since you are running iwl3945 it explains why you haven't
> >> seen that oops.
> >>
> >> Will look into this -- thanks. How easy can you reproduce BTW? Does it
> >> happen immediately upon assoc? Does it happen with other APs at the
> >> university?
> > Happens always when I try to associate.
> 
> Great so it will be easy to confirm a fix. Can you please try the 4
> patches I just posted? I haven't finished reviewing your case but so
> far from the pcap review (which was really helpful) I don't see
> anything funky from the beacon except that the FCS is bad. But that
> shouldn't matter.
This is a fault of iwlwifi monitor mode. it always reports 0 there.

> 
> Anyway please try the patches I posted and I'll finish reviewing this
> in the meantime.
I don't see anything yet.

> 
> > Other APs, I don't see many other APs there, (you mean other essids,
> > right?)
> 
> I meant other APs at the University on the same network.
This happens with all (I obviously couldn't test them all...) AP here.
(more correctly to say there were no ap that didn't trigger that bug)
I now converted that BUG_ON to printk, so I can  now use crda, and still
see if this bug exists.


> 
> > Most of them are encrypted anyway.
> 
> OK this should not matter.
> 
>   Luis


Thanks a lot.
	Best regards,
		Maxim Levitsky

Re: [BUG] Crda oopses the system

[Luis R. Rodriguez]

On Wed, May 13, 2009 at 4:08 PM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> On Wed, 2009-05-13 at 14:28 -0700, Luis R. Rodriguez wrote:

>> Anyway please try the patches I posted and I'll finish reviewing this
>> in the meantime.
> I don't see anything yet.

wget this and git am it, it has all the patches:

http://bombadil.infradead.org/~mcgrof/patches/wl/race-fixes-2009-05-13.patch

  Luis

Re: [BUG] Crda oopses the system

[Maxim Levitsky]

On Wed, 2009-05-13 at 16:12 -0700, Luis R. Rodriguez wrote:
> On Wed, May 13, 2009 at 4:08 PM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> > On Wed, 2009-05-13 at 14:28 -0700, Luis R. Rodriguez wrote:
> 
> >> Anyway please try the patches I posted and I'll finish reviewing this
> >> in the meantime.
> > I don't see anything yet.
> 
> wget this and git am it, it has all the patches:
> 
> http://bombadil.infradead.org/~mcgrof/patches/wl/race-fixes-2009-05-13.patch
> 
>   Luis


Thanks a lot.
I will test this as soon as be at university again. (next sunday).

Thanks again,
	Maxim Levitsky

Re: [BUG] Crda oopses the system

[Luis R. Rodriguez]

On Wed, May 13, 2009 at 4:22 PM, Maxim Levitsky <maximlevitsky@gmail.co=
m> wrote:
> On Wed, 2009-05-13 at 16:12 -0700, Luis R. Rodriguez wrote:
>> On Wed, May 13, 2009 at 4:08 PM, Maxim Levitsky <maximlevitsky@gmail=
=2Ecom> wrote:
>> > On Wed, 2009-05-13 at 14:28 -0700, Luis R. Rodriguez wrote:
>>
>> >> Anyway please try the patches I posted and I'll finish reviewing =
this
>> >> in the meantime.
>> > I don't see anything yet.
>>
>> wget this and git am it, it has all the patches:
>>
>> http://bombadil.infradead.org/~mcgrof/patches/wl/race-fixes-2009-05-=
13.patch
>>
>> =C2=A0 Luis
>
>
> Thanks a lot.
> I will test this as soon as be at university again. (next sunday).

Oh wow, that seems like eons to me. Hm..  yeah oh well.

  Luis
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Re: [BUG] Crda oopses the system

[Maxim Levitsky]

On Wed, 2009-05-13 at 16:28 -0700, Luis R. Rodriguez wrote:
> On Wed, May 13, 2009 at 4:22 PM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> > On Wed, 2009-05-13 at 16:12 -0700, Luis R. Rodriguez wrote:
> >> On Wed, May 13, 2009 at 4:08 PM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> >> > On Wed, 2009-05-13 at 14:28 -0700, Luis R. Rodriguez wrote:
> >>
> >> >> Anyway please try the patches I posted and I'll finish reviewing this
> >> >> in the meantime.
> >> > I don't see anything yet.
> >>
> >> wget this and git am it, it has all the patches:
> >>
> >> http://bombadil.infradead.org/~mcgrof/patches/wl/race-fixes-2009-05-13.patch
> >>
> >>   Luis
> >
> >
> > Thanks a lot.
> > I will test this as soon as be at university again. (next sunday).
> 
> Oh wow, that seems like eons to me. Hm..  yeah oh well.
For me it isn't... I have a pile of homeworks....

Anyway, I was supposed to be at lectures tomorrow, but there will be 'a
student day', which I obviously don't attend, only to continue linux
hacking... 

So thanks,
	Maxim Levitsky

I wish I had time to set up, an ath5k in AP mode. There are rumors that
it works more or less now, then I could use the same beacon frame to
test.


Best regards,
	Maxim Levitsky

Re: [BUG] Crda oopses the system

[Luis R. Rodriguez]

On Wed, May 13, 2009 at 4:47 PM, Maxim Levitsky <maximlevitsky@gmail.co=
m> wrote:
> On Wed, 2009-05-13 at 16:28 -0700, Luis R. Rodriguez wrote:
>> On Wed, May 13, 2009 at 4:22 PM, Maxim Levitsky <maximlevitsky@gmail=
=2Ecom> wrote:
>> > On Wed, 2009-05-13 at 16:12 -0700, Luis R. Rodriguez wrote:
>> >> On Wed, May 13, 2009 at 4:08 PM, Maxim Levitsky <maximlevitsky@gm=
ail.com> wrote:
>> >> > On Wed, 2009-05-13 at 14:28 -0700, Luis R. Rodriguez wrote:
>> >>
>> >> >> Anyway please try the patches I posted and I'll finish reviewi=
ng this
>> >> >> in the meantime.
>> >> > I don't see anything yet.
>> >>
>> >> wget this and git am it, it has all the patches:
>> >>
>> >> http://bombadil.infradead.org/~mcgrof/patches/wl/race-fixes-2009-=
05-13.patch
>> >>
>> >> =C2=A0 Luis
>> >
>> >
>> > Thanks a lot.
>> > I will test this as soon as be at university again. (next sunday).
>>
>> Oh wow, that seems like eons to me. Hm.. =C2=A0yeah oh well.
> For me it isn't... I have a pile of homeworks....
>
> Anyway, I was supposed to be at lectures tomorrow, but there will be =
'a
> student day', which I obviously don't attend, only to continue linux
> hacking...
>
> So thanks,
> =C2=A0 =C2=A0 =C2=A0 =C2=A0Maxim Levitsky
>
> I wish I had time to set up, an ath5k in AP mode. There are rumors th=
at
> it works more or less now, then I could use the same beacon frame to
> test.

It does and if it doesn't its a bug.

 Luis
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Re: [BUG] Crda oopses the system

[Bob Copeland]

On Wed, May 13, 2009 at 8:07 PM, Luis R. Rodriguez <mcgrof@gmail.com> wrote:
>>
>> I wish I had time to set up, an ath5k in AP mode. There are rumors that
>> it works more or less now, then I could use the same beacon frame to
>> test.
>
> It does and if it doesn't its a bug.

Just FYI, it's known to have problems if the STA uses power saving --
ath5k never updates the beacon.  I have a patch that should work in the
relevant bugzilla but I haven't been back to retest it (at first I
thought it was causing hangs, but later realized the hangs were due to
other bugs in w-t).

-- 
Bob Copeland %% www.bobcopeland.com

Re: [BUG] Crda oopses the system

[Maxim Levitsky]

On Thu, 2009-05-14 at 10:20 -0400, Bob Copeland wrote:
> On Wed, May 13, 2009 at 8:07 PM, Luis R. Rodriguez <mcgrof@gmail.com> wrote:
> >>
> >> I wish I had time to set up, an ath5k in AP mode. There are rumors that
> >> it works more or less now, then I could use the same beacon frame to
> >> test.
> >
> > It does and if it doesn't its a bug.
> 
> Just FYI, it's known to have problems if the STA uses power saving --
> ath5k never updates the beacon.  I have a patch that should work in the
> relevant bugzilla but I haven't been back to retest it (at first I
> thought it was causing hangs, but later realized the hangs were due to
> other bugs in w-t).
> 


Just to say the truth, I haven't took my laptop with me, thus I still
haven't tested this. I just happened that I has to do such.


I ether make my ath5k send same beacon at home, or bring it here for
next week.


Anyway I think it won't hurt to merge these patches anyway.


Best regards, and really sorry,
	Maxim Levitsky

Re: [BUG] Crda oopses the system

[Maxim Levitsky]

On Tue, 2009-05-19 at 17:17 +0300, Maxim Levitsky wrote:
> On Thu, 2009-05-14 at 10:20 -0400, Bob Copeland wrote:
> > On Wed, May 13, 2009 at 8:07 PM, Luis R. Rodriguez <mcgrof@gmail.com> wrote:
> > >>
> > >> I wish I had time to set up, an ath5k in AP mode. There are rumors that
> > >> it works more or less now, then I could use the same beacon frame to
> > >> test.
> > >
> > > It does and if it doesn't its a bug.
> > 
> > Just FYI, it's known to have problems if the STA uses power saving --
> > ath5k never updates the beacon.  I have a patch that should work in the
> > relevant bugzilla but I haven't been back to retest it (at first I
> > thought it was causing hangs, but later realized the hangs were due to
> > other bugs in w-t).
> > 
> 

I was just able to reproduce that bug on latest wireless-testing that I
belive contains the patches you sent for me to test.
I reproduced it against ath5k running in AP mode at home.

I finally made the ath5k send beacons (although not much works besides
this).


Note that I noticed that this bug happens once at boot, if I set NM to
use system settings, when I try to connect again it doesn't happen. Its
a race condition after all.

Best regards,
	Maxim Levitsky

Re: [BUG] Crda oopses the system

[Luis R. Rodriguez]

On Thu, May 21, 2009 at 5:20 PM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> On Tue, 2009-05-19 at 17:17 +0300, Maxim Levitsky wrote:
>> On Thu, 2009-05-14 at 10:20 -0400, Bob Copeland wrote:
>> > On Wed, May 13, 2009 at 8:07 PM, Luis R. Rodriguez <mcgrof@gmail.com> wrote:
>> > >>
>> > >> I wish I had time to set up, an ath5k in AP mode. There are rumors that
>> > >> it works more or less now, then I could use the same beacon frame to
>> > >> test.
>> > >
>> > > It does and if it doesn't its a bug.
>> >
>> > Just FYI, it's known to have problems if the STA uses power saving --
>> > ath5k never updates the beacon.  I have a patch that should work in the
>> > relevant bugzilla but I haven't been back to retest it (at first I
>> > thought it was causing hangs, but later realized the hangs were due to
>> > other bugs in w-t).
>> >
>>
>
> I was just able to reproduce that bug on latest wireless-testing that I
> belive contains the patches you sent for me to test.

Latest wireless-testing *does* have those patches.

> I reproduced it against ath5k running in AP mode at home.
>
> I finally made the ath5k send beacons (although not much works besides
> this).
>
>
> Note that I noticed that this bug

You can get an oops when trying to associate to your ath5k AP? And its
easily reproducible? What driver to you use as the STA? Can you
provide a trace?

> happens once at boot, if I set NM to
> use system settings,

What does this mean?

> when I try to connect again it doesn't happen. Its
> a race condition after all.

Is the oops not crashing your box? How are you able to try again? What
does trying again mean?

  Luis

Re: [BUG] Crda oopses the system

[Maxim Levitsky]

On Thu, 2009-05-21 at 17:36 -0700, Luis R. Rodriguez wrote:
> On Thu, May 21, 2009 at 5:20 PM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> > On Tue, 2009-05-19 at 17:17 +0300, Maxim Levitsky wrote:
> >> On Thu, 2009-05-14 at 10:20 -0400, Bob Copeland wrote:
> >> > On Wed, May 13, 2009 at 8:07 PM, Luis R. Rodriguez <mcgrof@gmail.com> wrote:
> >> > >>
> >> > >> I wish I had time to set up, an ath5k in AP mode. There are rumors that
> >> > >> it works more or less now, then I could use the same beacon frame to
> >> > >> test.
> >> > >
> >> > > It does and if it doesn't its a bug.
> >> >
> >> > Just FYI, it's known to have problems if the STA uses power saving --
> >> > ath5k never updates the beacon.  I have a patch that should work in the
> >> > relevant bugzilla but I haven't been back to retest it (at first I
> >> > thought it was causing hangs, but later realized the hangs were due to
> >> > other bugs in w-t).
> >> >
> >>
> >
> > I was just able to reproduce that bug on latest wireless-testing that I
> > belive contains the patches you sent for me to test.
> 
> Latest wireless-testing *does* have those patches.
Yes I know, just to be sure.

> 
> > I reproduced it against ath5k running in AP mode at home.
> >
> > I finally made the ath5k send beacons (although not much works besides
> > this).
> >
> >
> > Note that I noticed that this bug
> 
> You can get an oops when trying to associate to your ath5k AP? And its
> easily reproducible? What driver to you use as the STA? Can you
> provide a trace?
> 
> > happens once at boot, if I set NM to
> > use system settings,
> 
> What does this mean?
Well, I can't say for sure, but it appears that if I asccociate with AP,
then I repeat this, I don't see this bug again.


> 
> > when I try to connect again it doesn't happen. Its
> > a race condition after all.
> 
> Is the oops not crashing your box? How are you able to try again? What
> does trying again mean?
Well, its not an oops on my system long ago.

I have converted the BUG_ON to printk, and so far I havent see any side
effects.
However I don't want you just to remove this check, unless it is bogus.
(Because it will bury the bug deeper).

On the other hand I see no reason to convert it to WARN_ON so it won't
oops user systems.

I am talking about 

BUG_ON(!country_ie_regdomain);
in net/wireless/reg.c



> 
>   Luis

Re: [BUG] Crda oopses the system

[Luis R. Rodriguez]

On Fri, May 22, 2009 at 01:08:22PM +0300, Maxim Levitsky wrote:
> I am talking about 
> 
> BUG_ON(!country_ie_regdomain);
> in net/wireless/reg.c

Please try this patch and leave a window open with this running:

iw event

Please be sure to grab iw from git, not sure if the reg events
have all gone into an official release yet. What I'm looking for
is whether or not a previous 11d setting was already processed
or if the !country_ie_regdomain condition happens from the first
11d processing.

  Luis

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index f87ac1d..1b60dfc 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -2171,7 +2171,11 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 	 * the country IE rd with what CRDA believes that country should have
 	 */
 
-	BUG_ON(!country_ie_regdomain);
+	if (WARN_ON(!country_ie_regdomain)) {
+		kfree(rd);
+		rd = NULL;
+		return -EINVAL;
+	}
 	BUG_ON(rd == country_ie_regdomain);
 
 	/*
@@ -2268,6 +2272,8 @@ int regulatory_init(void)
 	if (IS_ERR(reg_pdev))
 		return PTR_ERR(reg_pdev);
 
+	country_ie_regdomain = NULL;
+
 	spin_lock_init(&reg_requests_lock);
 	spin_lock_init(&reg_pending_beacons_lock);
 

Re: [BUG] Crda oopses the system

[Maxim Levitsky]

On Sun, 2009-05-31 at 02:22 -0400, Luis R. Rodriguez wrote:
> On Fri, May 22, 2009 at 01:08:22PM +0300, Maxim Levitsky wrote:
> > I am talking about 
> > 
> > BUG_ON(!country_ie_regdomain);
> > in net/wireless/reg.c
> 
> Please try this patch and leave a window open with this running:
> 
> iw event
> 
> Please be sure to grab iw from git, not sure if the reg events
> have all gone into an official release yet. What I'm looking for
> is whether or not a previous 11d setting was already processed
> or if the !country_ie_regdomain condition happens from the first
> 11d processing.
> 
>   Luis
> 
> diff --git a/net/wireless/reg.c b/net/wireless/reg.c
> index f87ac1d..1b60dfc 100644
> --- a/net/wireless/reg.c
> +++ b/net/wireless/reg.c
> @@ -2171,7 +2171,11 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
>  	 * the country IE rd with what CRDA believes that country should have
>  	 */
>  
> -	BUG_ON(!country_ie_regdomain);
> +	if (WARN_ON(!country_ie_regdomain)) {
> +		kfree(rd);
> +		rd = NULL;
> +		return -EINVAL;
> +	}
>  	BUG_ON(rd == country_ie_regdomain);
>  
>  	/*
> @@ -2268,6 +2272,8 @@ int regulatory_init(void)
>  	if (IS_ERR(reg_pdev))
>  		return PTR_ERR(reg_pdev);
>  
> +	country_ie_regdomain = NULL;
> +
>  	spin_lock_init(&reg_requests_lock);
>  	spin_lock_init(&reg_pending_beacons_lock);
>  


I'll test this today.
I have iw from git.

Best regards,
	Maxim Levitsky

Re: [BUG] Crda oopses the system

[Maxim Levitsky]

[-- Attachment #1: Type: text/plain, Size: 2944 bytes --]

On Sun, 2009-05-31 at 15:47 +0300, Maxim Levitsky wrote:
> On Sun, 2009-05-31 at 02:22 -0400, Luis R. Rodriguez wrote:
> > On Fri, May 22, 2009 at 01:08:22PM +0300, Maxim Levitsky wrote:
> > > I am talking about 
> > > 
> > > BUG_ON(!country_ie_regdomain);
> > > in net/wireless/reg.c
> > 
> > Please try this patch and leave a window open with this running:
> > 
> > iw event
> > 
> > Please be sure to grab iw from git, not sure if the reg events
> > have all gone into an official release yet. What I'm looking for
> > is whether or not a previous 11d setting was already processed
> > or if the !country_ie_regdomain condition happens from the first
> > 11d processing.
> > 
> >   Luis
> > 
> > diff --git a/net/wireless/reg.c b/net/wireless/reg.c
> > index f87ac1d..1b60dfc 100644
> > --- a/net/wireless/reg.c
> > +++ b/net/wireless/reg.c
> > @@ -2171,7 +2171,11 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
> >  	 * the country IE rd with what CRDA believes that country should have
> >  	 */
> >  
> > -	BUG_ON(!country_ie_regdomain);
> > +	if (WARN_ON(!country_ie_regdomain)) {
> > +		kfree(rd);
> > +		rd = NULL;
> > +		return -EINVAL;
> > +	}
> >  	BUG_ON(rd == country_ie_regdomain);
> >  
> >  	/*
> > @@ -2268,6 +2272,8 @@ int regulatory_init(void)
> >  	if (IS_ERR(reg_pdev))
> >  		return PTR_ERR(reg_pdev);
> >  
> > +	country_ie_regdomain = NULL;
> > +
> >  	spin_lock_init(&reg_requests_lock);
> >  	spin_lock_init(&reg_pending_beacons_lock);
> >  
> 
> 
> I'll test this today.
> I have iw from git.
> 
> Best regards,
> 	Maxim Levitsky
> 










Here it is:


> wlan0 (phy #0): assoc 00:1b:9e:d8:77:02 -> 00:1b:77:f1:7c:29 status: 0: Successful
> wlan0 (phy #0): disassoc 00:1b:77:f1:7c:29 -> 00:1b:9e:d8:77:02 reason 3: Deauthenticated because sending station is leaving (or has left) the IBSS or ESS
> wlan0 (phy #0): scan finished
> wlan0 (phy #0): auth 00:23:4d:3c:80:27 -> 00:1b:77:f1:7c:29 status: 0: Successful
> wlan0 (phy #0): assoc 00:23:4d:3c:80:27 -> 00:1b:77:f1:7c:29 status: 0: Successful
> phy #0: regulatory domain change: intersection used due to a request made by a country IE on phy0
> 
dmesg attached (I use nvidia drivers)



On top of that there are few more very bold bugs in ath5k AP mode:


1 - beacons are send only after I start hostapd twise (kill it, and
start again)

2 - ath5k makes kernel panic, reliably after few times hostapd have
started, I didn't yet captured the output.
I remember to see panics with ad-hoc as well. 
I mean blinking leds on keyboard.

3 - couldn't transfer any frames between AP and client, only association
works.

I have started the hostapd, associated the clent (using link-local
feature of NM) assigned both ap and client an ip address (ifconfig wlan0
10.1.0.1/24 on AP, and ifconfig wlan0 10.1.0.2/24 on client ) and yet
even I couldn't receive even a arp reply from AP, and vise versa.

I use hostapd and wpa_supplicant frm latest git.




[-- Attachment #2: dmesg --]
[-- Type: text/plain, Size: 65304 bytes --]

[    0.000000] Linux version 2.6.30-rc7-wl (maxim@maxim-laptop) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #22 SMP PREEMPT Sun May 31 15:31:50 IDT 2009
[    0.000000] Command line: root=UUID=9ac77d81-98b6-47fe-9141-450c3edaafdb ro acpi_backlight=vendor vga=791 splash 
[    0.000000] KERNEL supported cpus:
[    0.000000]   Intel GenuineIntel
[    0.000000]   AMD AuthenticAMD
[    0.000000]   Centaur CentaurHauls
[    0.000000] BIOS-provided physical RAM map:
[    0.000000]  BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
[    0.000000]  BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
[    0.000000]  BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
[    0.000000]  BIOS-e820: 0000000000100000 - 000000007fcfd000 (usable)
[    0.000000]  BIOS-e820: 000000007fcfd000 - 000000007fd08000 (reserved)
[    0.000000]  BIOS-e820: 000000007fd08000 - 000000007fd52000 (usable)
[    0.000000]  BIOS-e820: 000000007fd52000 - 000000007fd55000 (reserved)
[    0.000000]  BIOS-e820: 000000007fd55000 - 000000007fdbb000 (usable)
[    0.000000]  BIOS-e820: 000000007fdbb000 - 000000007fdbf000 (reserved)
[    0.000000]  BIOS-e820: 000000007fdbf000 - 000000007fe70000 (usable)
[    0.000000]  BIOS-e820: 000000007fe70000 - 000000007febf000 (ACPI NVS)
[    0.000000]  BIOS-e820: 000000007febf000 - 000000007ff00000 (ACPI data)
[    0.000000]  BIOS-e820: 000000007ff00000 - 0000000080000000 (reserved)
[    0.000000]  BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
[    0.000000]  BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
[    0.000000]  BIOS-e820: 00000000fed14000 - 00000000fed1a000 (reserved)
[    0.000000]  BIOS-e820: 00000000fed1c000 - 00000000fed20000 (reserved)
[    0.000000]  BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
[    0.000000]  BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved)
[    0.000000] DMI 2.4 present.
[    0.000000] last_pfn = 0x7fe70 max_arch_pfn = 0x100000000
[    0.000000] MTRR default type: uncachable
[    0.000000] MTRR fixed ranges enabled:
[    0.000000]   00000-9FFFF write-back
[    0.000000]   A0000-BFFFF uncachable
[    0.000000]   C0000-FFFFF write-protect
[    0.000000] MTRR variable ranges enabled:
[    0.000000]   0 base 0FFFE0000 mask FFFFE0000 write-protect
[    0.000000]   1 base 000000000 mask FC0000000 write-back
[    0.000000]   2 base 040000000 mask FC0000000 write-back
[    0.000000]   3 base 07FF00000 mask FFFF00000 uncachable
[    0.000000]   4 disabled
[    0.000000]   5 disabled
[    0.000000]   6 disabled
[    0.000000]   7 disabled
[    0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
[    0.000000] e820 update range: 0000000000001000 - 0000000000006000 (usable) ==> (reserved)
[    0.000000] Scanning 1 areas for low memory corruption
[    0.000000] modified physical RAM map:
[    0.000000]  modified: 0000000000000000 - 0000000000001000 (usable)
[    0.000000]  modified: 0000000000001000 - 0000000000006000 (reserved)
[    0.000000]  modified: 0000000000006000 - 000000000009fc00 (usable)
[    0.000000]  modified: 000000000009fc00 - 00000000000a0000 (reserved)
[    0.000000]  modified: 00000000000e0000 - 0000000000100000 (reserved)
[    0.000000]  modified: 0000000000100000 - 000000007fcfd000 (usable)
[    0.000000]  modified: 000000007fcfd000 - 000000007fd08000 (reserved)
[    0.000000]  modified: 000000007fd08000 - 000000007fd52000 (usable)
[    0.000000]  modified: 000000007fd52000 - 000000007fd55000 (reserved)
[    0.000000]  modified: 000000007fd55000 - 000000007fdbb000 (usable)
[    0.000000]  modified: 000000007fdbb000 - 000000007fdbf000 (reserved)
[    0.000000]  modified: 000000007fdbf000 - 000000007fe70000 (usable)
[    0.000000]  modified: 000000007fe70000 - 000000007febf000 (ACPI NVS)
[    0.000000]  modified: 000000007febf000 - 000000007ff00000 (ACPI data)
[    0.000000]  modified: 000000007ff00000 - 0000000080000000 (reserved)
[    0.000000]  modified: 00000000e0000000 - 00000000f0000000 (reserved)
[    0.000000]  modified: 00000000fec00000 - 00000000fec01000 (reserved)
[    0.000000]  modified: 00000000fed14000 - 00000000fed1a000 (reserved)
[    0.000000]  modified: 00000000fed1c000 - 00000000fed20000 (reserved)
[    0.000000]  modified: 00000000fee00000 - 00000000fee01000 (reserved)
[    0.000000]  modified: 00000000fff00000 - 0000000100000000 (reserved)
[    0.000000] init_memory_mapping: 0000000000000000-000000007fe70000
[    0.000000]  0000000000 - 007fe00000 page 2M
[    0.000000]  007fe00000 - 007fe70000 page 4k
[    0.000000] kernel direct mapping tables up to 7fe70000 @ 8000-c000
[    0.000000] RAMDISK: 37c76000 - 37fef57b
[    0.000000] ACPI: RSDP 00000000000fe020 00024 (v02 ACRSYS)
[    0.000000] ACPI: XSDT 000000007fefe120 00064 (v01 ACRSYS ACRPRDCT 00000001      01000013)
[    0.000000] ACPI: FACP 000000007fefd000 000F4 (v04 ACRSYS ACRPRDCT 00000001 MSFT 01000013)
[    0.000000] ACPI: DSDT 000000007fef4000 08968 (v01 ACRSYS ACRPRDCT 00000001 MSFT 01000013)
[    0.000000] ACPI: FACS 000000007fe75000 00040
[    0.000000] ACPI: APIC 000000007fef3000 00068 (v02 ACRSYS ACRPRDCT 00000001 MSFT 01000013)
[    0.000000] ACPI: MCFG 000000007fef2000 0003C (v01 ACRSYS ACRPRDCT 00000001 MSFT 01000013)
[    0.000000] ACPI: SLIC 000000007fef1000 00176 (v01 ACRSYS ACRPRDCT 00000001 MSFT 01000013)
[    0.000000] ACPI: HPET 000000007fef0000 00038 (v01 ACRSYS ACRPRDCT 00000001 MSFT 01000013)
[    0.000000] ACPI: SSDT 000000007feef000 004C4 (v01  PmRef    CpuPm 00003000 INTL 20051117)
[    0.000000] ACPI: SSDT 000000007feee000 00232 (v01  PmRef  Cpu0Tst 00003000 INTL 20051117)
[    0.000000] ACPI: SSDT 000000007feed000 000A0 (v01  PmRef  Cpu1Tst 00003000 INTL 20051117)
[    0.000000] ACPI: Local APIC address 0xfee00000
[    0.000000] (7 early reservations) ==> bootmem [0000000000 - 007fe70000]
[    0.000000]   #0 [0000000000 - 0000001000]   BIOS data page ==> [0000000000 - 0000001000]
[    0.000000]   #1 [0000006000 - 0000008000]       TRAMPOLINE ==> [0000006000 - 0000008000]
[    0.000000]   #2 [0000200000 - 000083fd1c]    TEXT DATA BSS ==> [0000200000 - 000083fd1c]
[    0.000000]   #3 [0037c76000 - 0037fef57b]          RAMDISK ==> [0037c76000 - 0037fef57b]
[    0.000000]   #4 [000009fc00 - 0000100000]    BIOS reserved ==> [000009fc00 - 0000100000]
[    0.000000]   #5 [0000840000 - 00008401e4]              BRK ==> [0000840000 - 00008401e4]
[    0.000000]   #6 [0000008000 - 000000a000]          PGTABLE ==> [0000008000 - 000000a000]
[    0.000000] found SMP MP-table at [ffff8800000fe1b0] fe1b0
[    0.000000]  [ffffe20000000000-ffffe20001bfffff] PMD -> [ffff880001200000-ffff880002dfffff] on node 0
[    0.000000] Zone PFN ranges:
[    0.000000]   DMA      0x00000000 -> 0x00001000
[    0.000000]   DMA32    0x00001000 -> 0x00100000
[    0.000000]   Normal   0x00100000 -> 0x00100000
[    0.000000] Movable zone start PFN for each node
[    0.000000] early_node_map[6] active PFN ranges
[    0.000000]     0: 0x00000000 -> 0x00000001
[    0.000000]     0: 0x00000006 -> 0x0000009f
[    0.000000]     0: 0x00000100 -> 0x0007fcfd
[    0.000000]     0: 0x0007fd08 -> 0x0007fd52
[    0.000000]     0: 0x0007fd55 -> 0x0007fdbb
[    0.000000]     0: 0x0007fdbf -> 0x0007fe70
[    0.000000] On node 0 totalpages: 523768
[    0.000000]   DMA zone: 56 pages used for memmap
[    0.000000]   DMA zone: 1700 pages reserved
[    0.000000]   DMA zone: 2238 pages, LIFO batch:0
[    0.000000]   DMA32 zone: 7107 pages used for memmap
[    0.000000]   DMA32 zone: 512667 pages, LIFO batch:31
[    0.000000] ACPI: PM-Timer IO Port: 0x408
[    0.000000] ACPI: Local APIC address 0xfee00000
[    0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1])
[    0.000000] ACPI: IOAPIC (id[0x04] address[0xfec00000] gsi_base[0])
[    0.000000] IOAPIC[0]: apic_id 4, version 0, address 0xfec00000, GSI 0-23
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    0.000000] ACPI: IRQ0 used by override.
[    0.000000] ACPI: IRQ2 used by override.
[    0.000000] ACPI: IRQ9 used by override.
[    0.000000] Using ACPI (MADT) for SMP configuration information
[    0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[    0.000000] SMP: Allowing 2 CPUs, 0 hotplug CPUs
[    0.000000] nr_irqs_gsi: 24
[    0.000000] PM: Registered nosave memory: 0000000000001000 - 0000000000006000
[    0.000000] PM: Registered nosave memory: 000000000009f000 - 00000000000a0000
[    0.000000] PM: Registered nosave memory: 00000000000a0000 - 00000000000e0000
[    0.000000] PM: Registered nosave memory: 00000000000e0000 - 0000000000100000
[    0.000000] PM: Registered nosave memory: 000000007fcfd000 - 000000007fd08000
[    0.000000] PM: Registered nosave memory: 000000007fd52000 - 000000007fd55000
[    0.000000] PM: Registered nosave memory: 000000007fdbb000 - 000000007fdbf000
[    0.000000] Allocating PCI resources starting at 88000000 (gap: 80000000:60000000)
[    0.000000] NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:1
[    0.000000] PERCPU: Embedded 26 pages at ffff880001011000, static data 76868 bytes
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 514905
[    0.000000] Kernel command line: root=UUID=9ac77d81-98b6-47fe-9141-450c3edaafdb ro acpi_backlight=vendor vga=791 splash 
[    0.000000] Initializing CPU#0
[    0.000000] Preemptible RCU implementation.
[    0.000000] NR_IRQS:4352 nr_irqs:424
[    0.000000] PID hash table entries: 4096 (order: 12, 32768 bytes)
[    0.000000] Fast TSC calibration using PIT
[    0.000000] Detected 1662.397 MHz processor.
[    0.010000] Console: colour dummy device 80x25
[    0.010000] console [tty0] enabled
[    0.010000] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
[    0.010000] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
[    0.010000] Checking aperture...
[    0.010000] No AGP bridge found
[    0.010000] Memory: 2052376k/2095552k available (3640k kernel code, 480k absent, 42076k reserved, 1783k data, 408k init)
[    0.010000] SLUB: Genslabs=13, HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[    0.010000] hpet clockevent registered
[    0.010000] HPET: 3 timers in total, 0 timers will be used for per-cpu timer
[    0.010000] Calibrating delay loop (skipped), value calculated using timer frequency.. 3324.79 BogoMIPS (lpj=16623970)
[    0.010000] Security Framework initialized
[    0.010000] Mount-cache hash table entries: 256
[    0.010000] CPU: L1 I cache: 32K, L1 D cache: 32K
[    0.010000] CPU: L2 cache: 2048K
[    0.010000] CPU: Physical Processor ID: 0
[    0.010000] CPU: Processor Core ID: 0
[    0.010000] CPU0: Thermal monitoring enabled (TM1)
[    0.010000] using mwait in idle threads.
[    0.010000] ACPI: Core revision 20090320
[    0.020066] Setting APIC routing to flat
[    0.020474] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.123587] CPU0: Intel(R) Core(TM)2 Duo CPU     T5450  @ 1.66GHz stepping 0d
[    0.130000] Booting processor 1 APIC 0x1 ip 0x6000
[    0.010000] Initializing CPU#1
[    0.010000] Calibrating delay using timer specific routine.. 3829.58 BogoMIPS (lpj=19147942)
[    0.010000] CPU: L1 I cache: 32K, L1 D cache: 32K
[    0.010000] CPU: L2 cache: 2048K
[    0.010000] CPU: Physical Processor ID: 0
[    0.010000] CPU: Processor Core ID: 1
[    0.010000] CPU1: Thermal monitoring enabled (TM1)
[    0.010000] x86 PAT enabled: cpu 1, old 0x7040600070406, new 0x7010600070106
[    0.281398] CPU1: Intel(R) Core(TM)2 Duo CPU     T5450  @ 1.66GHz stepping 0d
[    0.281492] checking TSC synchronization [CPU#0 -> CPU#1]: passed.
[    0.290020] Brought up 2 CPUs
[    0.290028] Total of 2 processors activated (7154.38 BogoMIPS).
[    0.290091] CPU0 attaching sched-domain:
[    0.290095]  domain 0: span 0-1 level MC
[    0.290098]   groups: 0 1
[    0.290104] CPU1 attaching sched-domain:
[    0.290106]  domain 0: span 0-1 level MC
[    0.290109]   groups: 1 0
[    0.290151] net_namespace: 1360 bytes
[    0.290151] NET: Registered protocol family 16
[    0.290151] ACPI: bus type pci registered
[    0.290151] PCI: MCFG configuration 0: base e0000000 segment 0 buses 0 - 255
[    0.290151] PCI: MCFG area at e0000000 reserved in E820
[    0.300001] CPU1: Temperature/speed normal
[    0.305857] PCI: Using MMCONFIG at e0000000 - efffffff
[    0.305866] PCI: Using configuration type 1 for base access
[    0.305889] bio: create slab <bio-0> at 0
[    0.310127] ACPI: EC: Look up EC in DSDT
[    0.360035] ACPI: BIOS _OSI(Linux) query ignored
[    0.365173] ACPI: EC: non-query interrupt received, switching to interrupt mode
[    0.390229] ACPI: Interpreter enabled
[    0.390239] ACPI: (supports S0 S3 S4 S5)
[    0.390274] ACPI: Using IOAPIC for interrupt routing
[    0.432649] ACPI: EC: GPE = 0x1c, I/O: command/status = 0x66, data = 0x62
[    0.432649] ACPI: EC: driver started in interrupt mode
[    0.432649] ACPI: No dock devices found.
[    0.432649] ACPI Warning (nspredef-0331): \_SB_.PCI0._OSC: Parameter count mismatch - ASL declared 5, ACPI requires 4 [20090320]
[    0.432649] ACPI: PCI Root Bridge [PCI0] (0000:00)
[    0.432649] pci 0000:00:01.0: PME# supported from D0 D3hot D3cold
[    0.432649] pci 0000:00:01.0: PME# disabled
[    0.432649] pci 0000:00:1a.0: reg 20 io port: [0x60c0-0x60df]
[    0.432649] pci 0000:00:1a.1: reg 20 io port: [0x60a0-0x60bf]
[    0.432649] pci 0000:00:1a.7: reg 10 32bit mmio: [0x9b304c00-0x9b304fff]
[    0.432649] pci 0000:00:1a.7: PME# supported from D0 D3hot D3cold
[    0.432649] pci 0000:00:1a.7: PME# disabled
[    0.432649] pci 0000:00:1b.0: reg 10 64bit mmio: [0x9b300000-0x9b303fff]
[    0.432649] pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold
[    0.432649] pci 0000:00:1b.0: PME# disabled
[    0.432649] pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
[    0.432649] pci 0000:00:1c.0: PME# disabled
[    0.432649] pci 0000:00:1c.1: PME# supported from D0 D3hot D3cold
[    0.432649] pci 0000:00:1c.1: PME# disabled
[    0.432649] pci 0000:00:1c.2: PME# supported from D0 D3hot D3cold
[    0.432649] pci 0000:00:1c.2: PME# disabled
[    0.432649] pci 0000:00:1c.3: PME# supported from D0 D3hot D3cold
[    0.432649] pci 0000:00:1c.3: PME# disabled
[    0.432649] pci 0000:00:1d.0: reg 20 io port: [0x6080-0x609f]
[    0.432649] pci 0000:00:1d.1: reg 20 io port: [0x6060-0x607f]
[    0.432660] pci 0000:00:1d.2: reg 20 io port: [0x6040-0x605f]
[    0.432837] pci 0000:00:1d.7: reg 10 32bit mmio: [0x9b304800-0x9b304bff]
[    0.433002] pci 0000:00:1d.7: PME# supported from D0 D3hot D3cold
[    0.433020] pci 0000:00:1d.7: PME# disabled
[    0.433409] pci 0000:00:1f.0: quirk: region 0400-047f claimed by ICH6 ACPI/GPIO/TCO
[    0.433426] pci 0000:00:1f.0: quirk: region 0500-053f claimed by ICH6 GPIO
[    0.433445] pci 0000:00:1f.0: ICH7 LPC Generic IO decode 2 PIO at ff2c (mask 0003)
[    0.433462] pci 0000:00:1f.0: ICH7 LPC Generic IO decode 3 PIO at 0068 (mask 0007)
[    0.433590] pci 0000:00:1f.1: reg 10 io port: [0x6108-0x610f]
[    0.433608] pci 0000:00:1f.1: reg 14 io port: [0x611c-0x611f]
[    0.433626] pci 0000:00:1f.1: reg 18 io port: [0x6100-0x6107]
[    0.433643] pci 0000:00:1f.1: reg 1c io port: [0x6118-0x611b]
[    0.433661] pci 0000:00:1f.1: reg 20 io port: [0x60e0-0x60ef]
[    0.433851] pci 0000:00:1f.2: reg 10 io port: [0x60f8-0x60ff]
[    0.433868] pci 0000:00:1f.2: reg 14 io port: [0x6114-0x6117]
[    0.433886] pci 0000:00:1f.2: reg 18 io port: [0x60f0-0x60f7]
[    0.433904] pci 0000:00:1f.2: reg 1c io port: [0x6110-0x6113]
[    0.433921] pci 0000:00:1f.2: reg 20 io port: [0x6020-0x603f]
[    0.433939] pci 0000:00:1f.2: reg 24 32bit mmio: [0x9b304000-0x9b3047ff]
[    0.434050] pci 0000:00:1f.2: PME# supported from D3hot
[    0.434067] pci 0000:00:1f.2: PME# disabled
[    0.434152] pci 0000:00:1f.3: reg 10 32bit mmio: [0x9b305000-0x9b3050ff]
[    0.434216] pci 0000:00:1f.3: reg 20 io port: [0x6000-0x601f]
[    0.440121] pci 0000:01:00.0: reg 10 32bit mmio: [0x92000000-0x92ffffff]
[    0.440139] pci 0000:01:00.0: reg 14 64bit mmio: [0x80000000-0x8fffffff]
[    0.440156] pci 0000:01:00.0: reg 1c 64bit mmio: [0x90000000-0x91ffffff]
[    0.440166] pci 0000:01:00.0: reg 24 io port: [0x5000-0x507f]
[    0.440176] pci 0000:01:00.0: reg 30 32bit mmio: [0xfffe0000-0xffffffff]
[    0.460203] pci 0000:00:01.0: bridge io port: [0x5000-0x5fff]
[    0.460207] pci 0000:00:01.0: bridge 32bit mmio: [0x90000000-0x92ffffff]
[    0.460213] pci 0000:00:01.0: bridge 64bit mmio pref: [0x80000000-0x8fffffff]
[    0.460366] pci 0000:00:1c.0: bridge io port: [0x4000-0x4fff]
[    0.460373] pci 0000:00:1c.0: bridge 32bit mmio: [0x9a300000-0x9b2fffff]
[    0.460391] pci 0000:00:1c.0: bridge 64bit mmio pref: [0x93000000-0x93ffffff]
[    0.460544] pci 0000:00:1c.1: bridge io port: [0x3000-0x3fff]
[    0.460554] pci 0000:00:1c.1: bridge 32bit mmio: [0x99300000-0x9a2fffff]
[    0.460572] pci 0000:00:1c.1: bridge 64bit mmio pref: [0x94000000-0x94ffffff]
[    0.460795] pci 0000:05:00.0: reg 10 64bit mmio: [0x98200000-0x9820ffff]
[    0.461019] pci 0000:05:00.0: PME# supported from D3hot D3cold
[    0.461043] pci 0000:05:00.0: PME# disabled
[    0.461728] pci 0000:00:1c.2: bridge io port: [0x2000-0x2fff]
[    0.461738] pci 0000:00:1c.2: bridge 32bit mmio: [0x98200000-0x992fffff]
[    0.461756] pci 0000:00:1c.2: bridge 64bit mmio pref: [0x95000000-0x95ffffff]
[    0.461958] pci 0000:06:00.0: reg 10 32bit mmio: [0x97100000-0x97100fff]
[    0.462211] pci 0000:06:00.0: PME# supported from D0 D3hot D3cold
[    0.462232] pci 0000:06:00.0: PME# disabled
[    0.462339] pci 0000:06:00.0: disabling ASPM on pre-1.1 PCIe device.  You can enable it with 'pcie_aspm=force'
[    0.462572] pci 0000:00:1c.3: bridge io port: [0x1000-0x1fff]
[    0.462578] pci 0000:00:1c.3: bridge 32bit mmio: [0x97100000-0x981fffff]
[    0.462587] pci 0000:00:1c.3: bridge 64bit mmio pref: [0x96000000-0x96ffffff]
[    0.462639] pci 0000:07:00.0: reg 10 32bit mmio: [0x97000000-0x970007ff]
[    0.462707] pci 0000:07:00.0: supports D1 D2
[    0.462709] pci 0000:07:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[    0.462723] pci 0000:07:00.0: PME# disabled
[    0.462778] pci 0000:07:00.1: reg 10 32bit mmio: [0x97000a00-0x97000aff]
[    0.462847] pci 0000:07:00.1: supports D1 D2
[    0.462849] pci 0000:07:00.1: PME# supported from D0 D1 D2 D3hot D3cold
[    0.462863] pci 0000:07:00.1: PME# disabled
[    0.462917] pci 0000:07:00.2: reg 10 32bit mmio: [0x97000900-0x970009ff]
[    0.462985] pci 0000:07:00.2: supports D1 D2
[    0.462987] pci 0000:07:00.2: PME# supported from D0 D1 D2 D3hot D3cold
[    0.463001] pci 0000:07:00.2: PME# disabled
[    0.463056] pci 0000:07:00.3: reg 10 32bit mmio: [0x97000800-0x970008ff]
[    0.463125] pci 0000:07:00.3: supports D1 D2
[    0.463128] pci 0000:07:00.3: PME# supported from D0 D1 D2 D3hot D3cold
[    0.463142] pci 0000:07:00.3: PME# disabled
[    0.463229] pci 0000:00:1e.0: transparent bridge
[    0.463244] pci 0000:00:1e.0: bridge 32bit mmio: [0x97000000-0x970fffff]
[    0.463290] pci_bus 0000:00: on NUMA node 0
[    0.463299] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
[    0.463530] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P32_._PRT]
[    0.463651] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.EXP2._PRT]
[    0.463757] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.EXP3._PRT]
[    0.463863] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.EXP4._PRT]
[    0.463981] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PEGP._PRT]
[    0.470564] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 7 9 10 *11 12)
[    0.470564] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 7 9 10 *11 12)
[    0.470564] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 7 9 10 *11 12)
[    0.470699] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 7 9 10 *11 12)
[    0.470887] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 7 9 10 11 12) *0, disabled.
[    0.471080] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 7 9 *10 11 12)
[    0.471269] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 7 9 10 *11 12)
[    0.471456] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 7 9 10 *11 12)
[    0.471573] SCSI subsystem initialized
[    0.471573] libata version 3.00 loaded.
[    0.471573] PCI: Using ACPI for IRQ routing
[    0.560041] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
[    0.560055] hpet0: 3 comparators, 64-bit 14.318180 MHz counter
[    0.580010] Switched to high resolution mode on CPU 0
[    0.581521] Switched to high resolution mode on CPU 1
[    0.642510] pnp: PnP ACPI init
[    0.642525] ACPI: bus type pnp registered
[    0.643889] pnp 00:01: io resource (0x164e-0x164f) overlaps 0000:00:1c.3 BAR 7 (0x1000-0x1fff), disabling
[    0.677575] pnp: PnP ACPI: found 10 devices
[    0.677584] ACPI: ACPI bus type pnp unregistered
[    0.677603] system 00:01: ioport range 0x600-0x60f has been reserved
[    0.677615] system 00:01: ioport range 0x610-0x610 has been reserved
[    0.677626] system 00:01: ioport range 0x800-0x80f has been reserved
[    0.677637] system 00:01: ioport range 0x810-0x817 has been reserved
[    0.677648] system 00:01: ioport range 0x400-0x47f has been reserved
[    0.677659] system 00:01: ioport range 0x500-0x53f has been reserved
[    0.677671] system 00:01: iomem range 0xe0000000-0xefffffff has been reserved
[    0.677684] system 00:01: iomem range 0xfed1c000-0xfed1ffff has been reserved
[    0.677696] system 00:01: iomem range 0xfed14000-0xfed17fff has been reserved
[    0.677708] system 00:01: iomem range 0xfed18000-0xfed18fff has been reserved
[    0.677721] system 00:01: iomem range 0xfed19000-0xfed19fff has been reserved
[    0.677733] system 00:01: iomem range 0xfec00000-0xfec00fff has been reserved
[    0.677745] system 00:01: iomem range 0xfee00000-0xfee00fff has been reserved
[    0.677757] system 00:01: iomem range 0x32000000-0x320000ff could not be reserved
[    0.683771] pci 0000:01:00.0: BAR 6: can't allocate mem resource [0x90000000-0x8fffffff]
[    0.683786] pci 0000:00:01.0: PCI bridge, secondary bus 0000:01
[    0.683797] pci 0000:00:01.0:   IO window: 0x5000-0x5fff
[    0.683809] pci 0000:00:01.0:   MEM window: 0x90000000-0x92ffffff
[    0.683821] pci 0000:00:01.0:   PREFETCH window: 0x00000080000000-0x0000008fffffff
[    0.683837] pci 0000:00:1c.0: PCI bridge, secondary bus 0000:02
[    0.683849] pci 0000:00:1c.0:   IO window: 0x4000-0x4fff
[    0.683863] pci 0000:00:1c.0:   MEM window: 0x9a300000-0x9b2fffff
[    0.683877] pci 0000:00:1c.0:   PREFETCH window: 0x00000093000000-0x00000093ffffff
[    0.683896] pci 0000:00:1c.1: PCI bridge, secondary bus 0000:04
[    0.683908] pci 0000:00:1c.1:   IO window: 0x3000-0x3fff
[    0.683922] pci 0000:00:1c.1:   MEM window: 0x99300000-0x9a2fffff
[    0.683935] pci 0000:00:1c.1:   PREFETCH window: 0x00000094000000-0x00000094ffffff
[    0.683955] pci 0000:00:1c.2: PCI bridge, secondary bus 0000:05
[    0.683966] pci 0000:00:1c.2:   IO window: 0x2000-0x2fff
[    0.683980] pci 0000:00:1c.2:   MEM window: 0x98200000-0x992fffff
[    0.683993] pci 0000:00:1c.2:   PREFETCH window: 0x00000095000000-0x00000095ffffff
[    0.684012] pci 0000:00:1c.3: PCI bridge, secondary bus 0000:06
[    0.684024] pci 0000:00:1c.3:   IO window: 0x1000-0x1fff
[    0.684038] pci 0000:00:1c.3:   MEM window: 0x97100000-0x981fffff
[    0.684051] pci 0000:00:1c.3:   PREFETCH window: 0x00000096000000-0x00000096ffffff
[    0.684070] pci 0000:00:1e.0: PCI bridge, secondary bus 0000:07
[    0.684080] pci 0000:00:1e.0:   IO window: disabled
[    0.684093] pci 0000:00:1e.0:   MEM window: 0x97000000-0x970fffff
[    0.684106] pci 0000:00:1e.0:   PREFETCH window: disabled
[    0.684128]   alloc irq_desc for 16 on cpu 0 node 0
[    0.684130]   alloc kstat_irqs on cpu 0 node 0
[    0.684136] pci 0000:00:01.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[    0.684150] pci 0000:00:01.0: setting latency timer to 64
[    0.684159] pci 0000:00:1c.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[    0.684173] pci 0000:00:1c.0: setting latency timer to 64
[    0.684183]   alloc irq_desc for 17 on cpu 0 node 0
[    0.684185]   alloc kstat_irqs on cpu 0 node 0
[    0.684189] pci 0000:00:1c.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17
[    0.684203] pci 0000:00:1c.1: setting latency timer to 64
[    0.684213]   alloc irq_desc for 18 on cpu 0 node 0
[    0.684216]   alloc kstat_irqs on cpu 0 node 0
[    0.684219] pci 0000:00:1c.2: PCI INT C -> GSI 18 (level, low) -> IRQ 18
[    0.684233] pci 0000:00:1c.2: setting latency timer to 64
[    0.684243]   alloc irq_desc for 19 on cpu 0 node 0
[    0.684245]   alloc kstat_irqs on cpu 0 node 0
[    0.684249] pci 0000:00:1c.3: PCI INT D -> GSI 19 (level, low) -> IRQ 19
[    0.684263] pci 0000:00:1c.3: setting latency timer to 64
[    0.684272] pci 0000:00:1e.0: setting latency timer to 64
[    0.684278] pci_bus 0000:00: resource 0 io:  [0x00-0xffff]
[    0.684281] pci_bus 0000:00: resource 1 mem: [0x000000-0xffffffffffffffff]
[    0.684284] pci_bus 0000:01: resource 0 io:  [0x5000-0x5fff]
[    0.684286] pci_bus 0000:01: resource 1 mem: [0x90000000-0x92ffffff]
[    0.684289] pci_bus 0000:01: resource 2 pref mem [0x80000000-0x8fffffff]
[    0.684292] pci_bus 0000:02: resource 0 io:  [0x4000-0x4fff]
[    0.684295] pci_bus 0000:02: resource 1 mem: [0x9a300000-0x9b2fffff]
[    0.684298] pci_bus 0000:02: resource 2 pref mem [0x93000000-0x93ffffff]
[    0.684301] pci_bus 0000:04: resource 0 io:  [0x3000-0x3fff]
[    0.684303] pci_bus 0000:04: resource 1 mem: [0x99300000-0x9a2fffff]
[    0.684306] pci_bus 0000:04: resource 2 pref mem [0x94000000-0x94ffffff]
[    0.684309] pci_bus 0000:05: resource 0 io:  [0x2000-0x2fff]
[    0.684312] pci_bus 0000:05: resource 1 mem: [0x98200000-0x992fffff]
[    0.684314] pci_bus 0000:05: resource 2 pref mem [0x95000000-0x95ffffff]
[    0.684317] pci_bus 0000:06: resource 0 io:  [0x1000-0x1fff]
[    0.684320] pci_bus 0000:06: resource 1 mem: [0x97100000-0x981fffff]
[    0.684323] pci_bus 0000:06: resource 2 pref mem [0x96000000-0x96ffffff]
[    0.684326] pci_bus 0000:07: resource 1 mem: [0x97000000-0x970fffff]
[    0.684328] pci_bus 0000:07: resource 3 io:  [0x00-0xffff]
[    0.684331] pci_bus 0000:07: resource 4 mem: [0x000000-0xffffffffffffffff]
[    0.684348] NET: Registered protocol family 2
[    0.963537] IP route cache hash table entries: 65536 (order: 7, 524288 bytes)
[    0.963830] TCP established hash table entries: 262144 (order: 10, 4194304 bytes)
[    0.965876] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[    0.966450] TCP: Hash tables configured (established 262144 bind 65536)
[    0.966461] TCP reno registered
[    1.084216] NET: Registered protocol family 1
[    1.084300] Unpacking initramfs...
[    1.194643] Freeing initrd memory: 3557k freed
[    1.197866] cpu0(2) debug files 120
[    1.198381] cpu1(2) debug files 120
[    1.198930] Scanning for low memory corruption every 60 seconds
[    1.205054] VFS: Disk quotas dquot_6.5.2
[    1.205133] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    1.205895] msgmni has been set to 4016
[    1.206193] alg: No test for stdrng (krng)
[    1.206209] io scheduler noop registered
[    1.206219] io scheduler anticipatory registered (default)
[    1.206228] io scheduler deadline registered
[    1.206246] io scheduler cfq registered
[    1.206665] pci 0000:01:00.0: Boot video device
[    1.206845]   alloc irq_desc for 24 on cpu 0 node 0
[    1.206848]   alloc kstat_irqs on cpu 0 node 0
[    1.206860] pcieport-driver 0000:00:01.0: irq 24 for MSI/MSI-X
[    1.206873] pcieport-driver 0000:00:01.0: setting latency timer to 64
[    1.207109]   alloc irq_desc for 25 on cpu 0 node 0
[    1.207111]   alloc kstat_irqs on cpu 0 node 0
[    1.207122] pcieport-driver 0000:00:1c.0: irq 25 for MSI/MSI-X
[    1.207142] pcieport-driver 0000:00:1c.0: setting latency timer to 64
[    1.207400]   alloc irq_desc for 26 on cpu 0 node 0
[    1.207402]   alloc kstat_irqs on cpu 0 node 0
[    1.207412] pcieport-driver 0000:00:1c.1: irq 26 for MSI/MSI-X
[    1.207433] pcieport-driver 0000:00:1c.1: setting latency timer to 64
[    1.207694]   alloc irq_desc for 27 on cpu 0 node 0
[    1.207697]   alloc kstat_irqs on cpu 0 node 0
[    1.207707] pcieport-driver 0000:00:1c.2: irq 27 for MSI/MSI-X
[    1.207727] pcieport-driver 0000:00:1c.2: setting latency timer to 64
[    1.207992]   alloc irq_desc for 28 on cpu 0 node 0
[    1.207995]   alloc kstat_irqs on cpu 0 node 0
[    1.208005] pcieport-driver 0000:00:1c.3: irq 28 for MSI/MSI-X
[    1.208025] pcieport-driver 0000:00:1c.3: setting latency timer to 64
[    1.208274] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[    1.208285] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[    1.241768] decode_hpp: Could not get hotplug parameters. Use defaults
[    1.241892] acpiphp: Slot [1] registered
[    1.242257] vesafb: framebuffer at 0x91000000, mapped to 0xffffc20010100000, using 3072k, total 14336k
[    1.242273] vesafb: mode is 1024x768x16, linelength=2048, pages=1
[    1.242283] vesafb: scrolling: redraw
[    1.242292] vesafb: Truecolor: size=0:5:6:5, shift=0:11:5:0
[    1.271178] Console: switching to colour frame buffer device 128x48
[    1.300126] fb0: VESA VGA frame buffer device
[    1.303994] ACPI: AC Adapter [AC] (on-line)
[    1.304414] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
[    1.304822] ACPI: Power Button [PWRF]
[    1.305116] input: Power Button as /devices/LNXSYSTM:00/device:00/PNP0A08:00/device:03/PNP0C0C:00/input/input1
[    1.305666] ACPI: Power Button [PWRB]
[    1.305944] input: Lid Switch as /devices/LNXSYSTM:00/device:00/PNP0A08:00/device:03/PNP0C0D:00/input/input2
[    1.306550] ACPI: Lid Switch [LID0]
[    1.306824] input: Sleep Button as /devices/LNXSYSTM:00/device:00/PNP0A08:00/device:03/PNP0C0E:00/input/input3
[    1.307374] ACPI: Sleep Button [SLPB]
[    1.308133] ACPI: SSDT 000000007fe74c90 001EA (v01  PmRef  Cpu0Ist 00003000 INTL 20051117)
[    1.309198] ACPI: SSDT 000000007fe73610 005D7 (v01  PmRef  Cpu0Cst 00003001 INTL 20051117)
[    1.312197] ACPI Warning (processor_throttling-0843): Invalid throttling state, reset
[    1.312640]  [20090320]
[    1.312980] Monitor-Mwait will be used to enter C-1 state
[    1.313005] Monitor-Mwait will be used to enter C-2 state
[    1.313027] Monitor-Mwait will be used to enter C-3 state
[    1.313033] Marking TSC unstable due to TSC halts in idle
[    1.313385] ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3])
[    1.313789] processor ACPI_CPU:00: registered as cooling_device0
[    1.314122] ACPI: Processor [CPU0] (supports 8 throttling states)
[    1.314882] ACPI: SSDT 000000007fe74f10 000C4 (v01  PmRef  Cpu1Ist 00003000 INTL 20051117)
[    1.315802] ACPI: SSDT 000000007fe76d10 00083 (v01  PmRef  Cpu1Cst 00003000 INTL 20051117)
[    1.317064] ACPI Warning (processor_throttling-0843): Invalid throttling state, reset
[    1.317507]  [20090320]
[    1.317997] ACPI: CPU1 (power states: C1[C1] C2[C2] C3[C3])
[    1.326152] processor ACPI_CPU:01: registered as cooling_device1
[    1.334478] ACPI: Processor [CPU1] (supports 8 throttling states)
[    1.382782] thermal LNXTHERM:01: registered as thermal_zone0
[    1.391575] ACPI: Thermal Zone [TZ01] (55 C)
[    1.720156] ACPI: Battery Slot [BAT0] (battery present)
[    1.729712] Non-volatile memory driver v1.3
[    1.739052] Linux agpgart interface v0.103
[    1.749438] loop: module loaded
[    1.759168] nbd: registered device at major 43
[    1.771278] Driver 'sd' needs updating - please use bus_type methods
[    1.781521] Driver 'sr' needs updating - please use bus_type methods
[    1.791816] ahci 0000:00:1f.2: version 3.0
[    1.791834] ahci 0000:00:1f.2: PCI INT B -> GSI 19 (level, low) -> IRQ 19
[    1.802371]   alloc irq_desc for 29 on cpu 0 node 0
[    1.802374]   alloc kstat_irqs on cpu 0 node 0
[    1.802387] ahci 0000:00:1f.2: irq 29 for MSI/MSI-X
[    1.802463] ahci 0000:00:1f.2: AHCI 0001.0100 32 slots 3 ports 3 Gbps 0x7 impl SATA mode
[    1.813303] ahci 0000:00:1f.2: flags: 64bit ncq sntf pm led clo pio slum part ems 
[    1.824393] ahci 0000:00:1f.2: setting latency timer to 64
[    1.826539] scsi0 : ahci
[    1.837829] scsi1 : ahci
[    1.849114] scsi2 : ahci
[    1.860406] ata1: SATA max UDMA/133 abar m2048@0x9b304000 port 0x9b304100 irq 29
[    1.872129] ata2: SATA max UDMA/133 abar m2048@0x9b304000 port 0x9b304180 irq 29
[    1.883883] ata3: SATA max UDMA/133 abar m2048@0x9b304000 port 0x9b304200 irq 29
[    1.895772] ata_piix 0000:00:1f.1: version 2.13
[    1.895783] ata_piix 0000:00:1f.1: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[    1.907928] ata_piix 0000:00:1f.1: setting latency timer to 64
[    1.908001] scsi3 : ata_piix
[    1.920285] scsi4 : ata_piix
[    1.932571] ata4: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0x60e0 irq 14
[    1.944978] ata5: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0x60e8 irq 15
[    1.957427] PNP: PS/2 Controller [PNP0303:KBC0,PNP0f13:MSE0] at 0x60,0x64 irq 1,12
[    2.007810] serio: i8042 KBD port at 0x60,0x64 irq 1
[    2.020051] serio: i8042 AUX port at 0x60,0x64 irq 12
[    2.032174] mice: PS/2 mouse device common for all mice
[    2.044025] rtc_cmos 00:03: RTC can wake from S4
[    2.055548] rtc_cmos 00:03: rtc core: registered rtc_cmos as rtc0
[    2.066828] rtc0: alarms up to one month, 242 bytes nvram, hpet irqs
[    2.077895] i2c /dev entries driver
[    2.080544] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input4
[    2.099509] i801_smbus 0000:00:1f.3: PCI INT B -> GSI 19 (level, low) -> IRQ 19
[    2.110896] cpuidle: using governor ladder
[    2.122497] cpuidle: using governor menu
[    2.130419] ata4.00: ATAPI: HL-DT-ST DVDRAM GSA-T20N, WP03, max UDMA/33
[    2.143926] Advanced Linux Sound Architecture Driver Version 1.0.20.
[    2.154721] ALSA device list:
[    2.165320]   No soundcards found.
[    2.175832] Netfilter messages via NETLINK v0.30.
[    2.176132] ata4.00: configured for UDMA/33
[    2.196703] TCP cubic registered
[    2.207089] Initializing XFRM netlink socket
[    2.217616] registered taskstats version 1
[    2.227932] rtc_cmos 00:03: setting system clock to 2009-05-31 20:28:39 UTC (1243801719)
[    2.238411] ata2: SATA link down (SStatus 0 SControl 300)
[    2.248877] ata3: SATA link down (SStatus 0 SControl 300)
[    2.410144] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[    2.500055] Clocksource tsc unstable (delta = -144631009 ns)
[    2.808033] ata1.00: ATA-8: TOSHIBA MK1646GSX, LB113J, max UDMA/100
[    2.818265] ata1.00: 312581808 sectors, multi 16: LBA48 NCQ (depth 31/32)
[    2.829491] ata1.00: configured for UDMA/100
[    2.842778] scsi 0:0:0:0: Direct-Access     ATA      TOSHIBA MK1646GS LB11 PQ: 0 ANSI: 5
[    2.853842] sd 0:0:0:0: Attached scsi generic sg0 type 0
[    2.853868] sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors: (160 GB/149 GiB)
[    2.853886] sd 0:0:0:0: [sda] Write Protect is off
[    2.853889] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[    2.853911] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[    2.854026]  sda:<5>scsi 3:0:0:0: CD-ROM            HL-DT-ST DVDRAM GSA-T20N  WP03 PQ: 0 ANSI: 5
[    2.911936]  sda1 sda3 sda4
[    2.923728] sd 0:0:0:0: [sda] Attached SCSI disk
[    2.940989] sr0: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
[    2.952292] Uniform CD-ROM driver Revision: 3.20
[    2.963899] sr 3:0:0:0: Attached scsi CD-ROM sr0
[    2.964082] sr 3:0:0:0: Attached scsi generic sg1 type 5
[    3.160181] Freeing unused kernel memory: 408k freed
[    3.314995] fuse init (API version 7.11)
[    3.983119] PM: Starting manual resume from disk
[    3.993905] EXT4-fs: barriers enabled
[    4.015947] kjournald2 starting: pid 1224, dev sda4:8, commit interval 5 seconds
[    4.015957] EXT4-fs: delayed allocation enabled
[    4.015959] EXT4-fs: file extents enabled
[    4.020175] EXT4-fs: mballoc enabled
[    4.020192] EXT4-fs: mounted filesystem sda4 with ordered data mode
[    9.733330] udev: starting version 141
[   10.071536] ACPI: WMI: Mapper loaded
[   10.190572] usbcore: registered new interface driver usbfs
[   10.190610] usbcore: registered new interface driver hub
[   10.190694] usbcore: registered new device driver usb
[   10.731524] nvidia: module license 'NVIDIA' taints kernel.
[   10.731531] Disabling lock debugging due to kernel taint
[   10.781712] iTCO_vendor_support: vendor-support=0
[   10.783258] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.05
[   10.783355] iTCO_wdt: Found a ICH8M TCO device (Version=2, TCOBASE=0x0460)
[   10.783416] iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
[   10.840358] sdhci: Secure Digital Host Controller Interface driver
[   10.840363] sdhci: Copyright(c) Pierre Ossman
[   10.883665] sdhci-pci 0000:07:00.1: SDHCI controller found [1180:0822] (rev 22)
[   10.883686]   alloc irq_desc for 22 on cpu 0 node 0
[   10.883689]   alloc kstat_irqs on cpu 0 node 0
[   10.883698] sdhci-pci 0000:07:00.1: PCI INT B -> GSI 22 (level, low) -> IRQ 22
[   10.886095] Registered led device: mmc0::
[   10.887291] mmc0: SDHCI controller on PCI [0000:07:00.1] using PIO
[   10.899476]   alloc irq_desc for 20 on cpu 0 node 0
[   10.899480]   alloc kstat_irqs on cpu 0 node 0
[   10.899489] ohci1394 0000:07:00.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
[   10.899498] ohci1394 0000:07:00.0: setting latency timer to 64
[   10.964854] ohci1394: fw-host0: OHCI-1394 1.1 (PCI): IRQ=[20]  MMIO=[97000000-970007ff]  Max Packet=[2048]  IR/IT contexts=[4/4]
[   11.053401] nvidia 0000:01:00.0: power state changed by ACPI to D0
[   11.053415] nvidia 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[   11.053424] nvidia 0000:01:00.0: setting latency timer to 64
[   11.053591] NVRM: loading NVIDIA UNIX x86_64 Kernel Module  180.44  Tue Mar 24 05:46:32 PST 2009
[   11.075549] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[   11.075587] ehci_hcd 0000:00:1a.7: PCI INT C -> GSI 18 (level, low) -> IRQ 18
[   11.075610] ehci_hcd 0000:00:1a.7: setting latency timer to 64
[   11.075614] ehci_hcd 0000:00:1a.7: EHCI Host Controller
[   11.075671] ehci_hcd 0000:00:1a.7: new USB bus registered, assigned bus number 1
[   11.079587] ehci_hcd 0000:00:1a.7: debug port 1
[   11.079594] ehci_hcd 0000:00:1a.7: cache line size of 32 is not supported
[   11.079616] ehci_hcd 0000:00:1a.7: irq 18, io mem 0x9b304c00
[   11.100046] ehci_hcd 0000:00:1a.7: USB 2.0 started, EHCI 1.00
[   11.100158] usb usb1: configuration #1 chosen from 1 choice
[   11.100195] hub 1-0:1.0: USB hub found
[   11.100204] hub 1-0:1.0: 4 ports detected
[   11.100346]   alloc irq_desc for 23 on cpu 0 node 0
[   11.100349]   alloc kstat_irqs on cpu 0 node 0
[   11.100358] ehci_hcd 0000:00:1d.7: PCI INT A -> GSI 23 (level, low) -> IRQ 23
[   11.100382] ehci_hcd 0000:00:1d.7: setting latency timer to 64
[   11.100386] ehci_hcd 0000:00:1d.7: EHCI Host Controller
[   11.100417] ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 2
[   11.104340] ehci_hcd 0000:00:1d.7: debug port 1
[   11.104348] ehci_hcd 0000:00:1d.7: cache line size of 32 is not supported
[   11.104367] ehci_hcd 0000:00:1d.7: irq 23, io mem 0x9b304800
[   11.120047] ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00
[   11.120149] usb usb2: configuration #1 chosen from 1 choice
[   11.120187] hub 2-0:1.0: USB hub found
[   11.120196] hub 2-0:1.0: 6 ports detected
[   11.185328] uhci_hcd: USB Universal Host Controller Interface driver
[   11.185431] uhci_hcd 0000:00:1a.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[   11.185445] uhci_hcd 0000:00:1a.0: setting latency timer to 64
[   11.185450] uhci_hcd 0000:00:1a.0: UHCI Host Controller
[   11.185490] uhci_hcd 0000:00:1a.0: new USB bus registered, assigned bus number 3
[   11.185543] uhci_hcd 0000:00:1a.0: irq 16, io base 0x000060c0
[   11.185665] usb usb3: configuration #1 chosen from 1 choice
[   11.185703] hub 3-0:1.0: USB hub found
[   11.185711] hub 3-0:1.0: 2 ports detected
[   11.185817]   alloc irq_desc for 21 on cpu 0 node 0
[   11.185820]   alloc kstat_irqs on cpu 0 node 0
[   11.185828] uhci_hcd 0000:00:1a.1: PCI INT B -> GSI 21 (level, low) -> IRQ 21
[   11.185837] uhci_hcd 0000:00:1a.1: setting latency timer to 64
[   11.185841] uhci_hcd 0000:00:1a.1: UHCI Host Controller
[   11.185869] uhci_hcd 0000:00:1a.1: new USB bus registered, assigned bus number 4
[   11.185912] uhci_hcd 0000:00:1a.1: irq 21, io base 0x000060a0
[   11.186000] usb usb4: configuration #1 chosen from 1 choice
[   11.186034] hub 4-0:1.0: USB hub found
[   11.186041] hub 4-0:1.0: 2 ports detected
[   11.186147] uhci_hcd 0000:00:1d.0: PCI INT A -> GSI 23 (level, low) -> IRQ 23
[   11.186155] uhci_hcd 0000:00:1d.0: setting latency timer to 64
[   11.186159] uhci_hcd 0000:00:1d.0: UHCI Host Controller
[   11.186186] uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 5
[   11.186219] uhci_hcd 0000:00:1d.0: irq 23, io base 0x00006080
[   11.186310] usb usb5: configuration #1 chosen from 1 choice
[   11.186343] hub 5-0:1.0: USB hub found
[   11.186352] hub 5-0:1.0: 2 ports detected
[   11.186455] uhci_hcd 0000:00:1d.1: PCI INT B -> GSI 19 (level, low) -> IRQ 19
[   11.186463] uhci_hcd 0000:00:1d.1: setting latency timer to 64
[   11.186467] uhci_hcd 0000:00:1d.1: UHCI Host Controller
[   11.186494] uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 6
[   11.186537] uhci_hcd 0000:00:1d.1: irq 19, io base 0x00006060
[   11.186627] usb usb6: configuration #1 chosen from 1 choice
[   11.186669] hub 6-0:1.0: USB hub found
[   11.186677] hub 6-0:1.0: 2 ports detected
[   11.186777] uhci_hcd 0000:00:1d.2: PCI INT C -> GSI 18 (level, low) -> IRQ 18
[   11.186786] uhci_hcd 0000:00:1d.2: setting latency timer to 64
[   11.186790] uhci_hcd 0000:00:1d.2: UHCI Host Controller
[   11.186818] uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 7
[   11.186850] uhci_hcd 0000:00:1d.2: irq 18, io base 0x00006040
[   11.186951] usb usb7: configuration #1 chosen from 1 choice
[   11.186986] hub 7-0:1.0: USB hub found
[   11.186994] hub 7-0:1.0: 2 ports detected
[   11.274622] tg3.c:v3.98 (February 25, 2009)
[   11.274692] tg3 0000:05:00.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[   11.274709] tg3 0000:05:00.0: setting latency timer to 64
[   11.290177] tg3 0000:05:00.0: PME# disabled
[   11.327796] acer-wmi: Acer Laptop ACPI-WMI Extras
[   11.338136] eth0: Tigon3 [partno(BCM95787m) rev b002] (PCI Express) MAC address 00:1b:38:c8:50:f3
[   11.338141] eth0: attached PHY is 5787 (10/100/1000Base-T Ethernet) (WireSpeed[1])
[   11.338144] eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1]
[   11.338147] eth0: dma_rwctrl[76180000] dma_mask[64-bit]
[   11.360140] cfg80211: Calling CRDA to update world regulatory domain
[   11.394695] HDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
[   11.394765]   alloc irq_desc for 30 on cpu 0 node 0
[   11.394768]   alloc kstat_irqs on cpu 0 node 0
[   11.394782] HDA Intel 0000:00:1b.0: irq 30 for MSI/MSI-X
[   11.394828] HDA Intel 0000:00:1b.0: setting latency timer to 64
[   11.440087] usb 2-4: new high speed USB device using ehci_hcd and address 2
[   11.541719] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.26kds
[   11.541723] iwl3945: Copyright(c) 2003-2009 Intel Corporation
[   11.541819] iwl3945 0000:06:00.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
[   11.541834] iwl3945 0000:06:00.0: setting latency timer to 64
[   11.581684] cfg80211: World regulatory domain updated:
[   11.581689] 	(start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[   11.581693] 	(2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   11.581696] 	(2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[   11.581699] 	(2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[   11.581702] 	(5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   11.581705] 	(5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   11.583470] cfg80211: World regulatory domain updated:
[   11.583473] 	(start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[   11.583477] 	(2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   11.583481] 	(2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[   11.583484] 	(2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[   11.583487] 	(5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   11.583490] 	(5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[   11.599957] usb 2-4: configuration #1 chosen from 1 choice
[   11.614038] iwl3945 0000:06:00.0: Tunable channels: 13 802.11bg, 0 802.11a channels
[   11.614043] iwl3945 0000:06:00.0: Detected Intel Wireless WiFi Link 3945BG
[   11.614189]   alloc irq_desc for 31 on cpu 0 node 0
[   11.614192]   alloc kstat_irqs on cpu 0 node 0
[   11.614227] iwl3945 0000:06:00.0: irq 31 for MSI/MSI-X
[   11.618422] phy0: Selected rate control algorithm 'iwl-3945-rs'
[   11.692201] Linux video capture interface: v2.00
[   11.693677] hda-codec: No codec parser is available
[   11.723451] uvcvideo: Found UVC 1.00 device Acer CrystalEye webcam (064e:a101)
[   11.725969] input: Acer CrystalEye webcam as /devices/pci0000:00/0000:00:1d.7/usb2/2-4/2-4:1.0/input/input5
[   11.726035] usbcore: registered new interface driver uvcvideo
[   11.726038] USB Video Class driver (v0.1.0)
[   11.878956] input: PS/2 Mouse as /devices/platform/i8042/serio1/input/input6
[   11.913571] input: AlpsPS/2 ALPS GlidePoint as /devices/platform/i8042/serio1/input/input7
[   12.280189] ieee1394: Host added: ID:BUS[0-00:1023]  GUID[b64057b700023f7c]
[   12.437581] usbcore: registered new interface driver libusual
[   12.452444] Initializing USB Mass Storage driver...
[   12.452500] usbcore: registered new interface driver usb-storage
[   12.452503] USB Mass Storage support registered.
[   12.750017] hda_intel: No response from codec, disabling MSI: last cmd=0x018b0000
[   13.606775] Adding 3068404k swap on /dev/sda3.  Priority:-1 extents:1 across:3068404k 
[   13.760012] hda_intel: azx_get_response timeout, switching to polling mode: last cmd=0x018b0000
[   14.332192] EXT4 FS on sda4, internal journal on sda4:8
[   16.254622] RPC: Registered udp transport module.
[   16.254625] RPC: Registered tcp transport module.
[   16.411025] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[   19.615270] /dev/vmmon[2935]: Module vmmon: registered with major=10 minor=165
[   19.615311] /dev/vmmon[2935]: Initial HV check: anyNotCapable=1 anyUnlocked=0 anyEnabled=0 anyDisabled=0
[   19.615317] /dev/vmmon[2935]: Module vmmon: initialized
[   19.640112] /dev/vmci[2945]: VMCI: Driver initialized.
[   19.641856] /dev/vmci[2945]: Module vmci: registered with major=10 minor=59
[   19.641862] /dev/vmci[2945]: Module vmci: initialized
[   21.262518] /dev/vmnet: open called by PID 3490 (vmnet-dhcpd)
[   21.262533] /dev/vmnet: hub 0 does not exist, allocating memory.
[   21.262557] /dev/vmnet: port on hub 0 successfully opened
[   21.340101] /dev/vmnet: open called by PID 3492 (vmnet-natd)
[   21.340119] /dev/vmnet: port on hub 0 successfully opened
[   21.403907] /dev/vmnet: open called by PID 3496 (vmnet-netifup)
[   21.403926] /dev/vmnet: port on hub 0 successfully opened
[   21.403941] vmnet0 (): not using net_device_ops yet
[   25.278422] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory
[   25.289036] NFSD: starting 90-second grace period
[   27.396006] Bluetooth: Core ver 2.15
[   27.398428] NET: Registered protocol family 31
[   27.398434] Bluetooth: HCI device and connection manager initialized
[   27.398440] Bluetooth: HCI socket layer initialized
[   27.431535] Bluetooth: L2CAP ver 2.13
[   27.431540] Bluetooth: L2CAP socket layer initialized
[   27.451205] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   27.451210] Bluetooth: BNEP filters: protocol multicast
[   27.519038] Bridge firewalling registered
[   27.533923] Bluetooth: SCO (Voice Link) ver 0.6
[   27.533928] Bluetooth: SCO socket layer initialized
[   28.806059] warning: `dhcpd3' uses 32-bit capabilities (legacy support in use)
[   28.864018] nvidia 0000:01:00.0: irq 30 for MSI/MSI-X
[   28.864044] IRQ 30/nvidia: IRQF_DISABLED is not guaranteed on shared IRQs
[   35.729646] tg3 0000:05:00.0: PME# disabled
[   35.729948]   alloc irq_desc for 32 on cpu 0 node 0
[   35.729953]   alloc kstat_irqs on cpu 0 node 0
[   35.729988] tg3 0000:05:00.0: irq 32 for MSI/MSI-X
[   36.031904] iwl3945 0000:06:00.0: firmware: requesting iwlwifi-3945-2.ucode
[   36.230893] iwl3945 0000:06:00.0: loaded firmware version 15.32.2.9
[   36.311919] Registered led device: iwl-phy0::radio
[   36.312021] Registered led device: iwl-phy0::assoc
[   36.312053] Registered led device: iwl-phy0::RX
[   36.312084] Registered led device: iwl-phy0::TX
[   36.463381] NET: Registered protocol family 17
[   36.574798] __ieee80211_start_scan: scan requested
[   36.575986] __ieee80211_start_scan: scan requested OK
[   37.660076] ieee80211_scan_completed: aborted=0
[   37.660083] cfg80211_scan_done: scan done. aborted=0
[   37.662617] ieee80211_scan_completed: exit
[   56.728514] __ieee80211_start_scan: scan requested
[   56.729579] __ieee80211_start_scan: scan requested OK
[   57.810076] ieee80211_scan_completed: aborted=0
[   57.810082] cfg80211_scan_done: scan done. aborted=0
[   57.812580] ieee80211_scan_completed: exit
[   66.688122] hda-intel: IRQ timing workaround is activated for card #0. Suggest a bigger bdl_pos_adj.
[   86.731155] __ieee80211_start_scan: scan requested
[   86.732885] __ieee80211_start_scan: scan requested OK
[   87.822550] ieee80211_scan_completed: aborted=0
[   87.822555] cfg80211_scan_done: scan done. aborted=0
[   87.825015] ieee80211_scan_completed: exit
[  126.735097] __ieee80211_start_scan: scan requested
[  126.735947] __ieee80211_start_scan: scan requested OK
[  127.820028] ieee80211_scan_completed: aborted=0
[  127.820033] cfg80211_scan_done: scan done. aborted=0
[  127.822249] ieee80211_scan_completed: exit
[  148.859939] __ieee80211_start_scan: scan requested
[  148.860584] __ieee80211_start_scan: scan requested OK
[  149.950075] ieee80211_scan_completed: aborted=0
[  149.950082] cfg80211_scan_done: scan done. aborted=0
[  149.951147] ieee80211_sta_req_auth: called
[  149.951912] ieee80211_scan_completed: exit
[  149.953254] wlan0: authenticate with AP 00:1b:9e:d8:77:02
[  149.955180] wlan0: authenticated
[  149.956127] ieee80211_sta_req_auth: called
[  149.956771] wlan0: associate with AP 00:1b:9e:d8:77:02
[  149.959389] wlan0: RX AssocResp from 00:1b:9e:d8:77:02 (capab=0x411 status=0 aid=3)
[  149.959395] wlan0: associated
[  170.452303] wlan0: disassociating by local choice (reason=3)
[  170.659255] __ieee80211_start_scan: scan requested
[  170.660561] __ieee80211_start_scan: scan requested OK
[  171.752542] ieee80211_scan_completed: aborted=0
[  171.752547] cfg80211_scan_done: scan done. aborted=0
[  171.753280] ieee80211_sta_req_auth: called
[  171.755054] ieee80211_scan_completed: exit
[  171.756586] wlan0: authenticate with AP 00:1b:9e:d8:77:02
[  171.758499] wlan0: authenticated
[  171.759258] ieee80211_sta_req_auth: called
[  171.760098] wlan0: associate with AP 00:1b:9e:d8:77:02
[  171.763787] wlan0: RX ReassocResp from 00:1b:9e:d8:77:02 (capab=0x411 status=0 aid=3)
[  171.763791] wlan0: associated
[  176.107408] __ieee80211_start_scan: scan requested
[  176.107444] __ieee80211_start_scan: scan requested OK
[  177.210111] ieee80211_scan_completed: aborted=0
[  177.210118] cfg80211_scan_done: scan done. aborted=0
[  177.212954] ieee80211_scan_completed: exit
[  185.240455] wlan0: disassociating by local choice (reason=3)
[  185.420203] __ieee80211_start_scan: scan requested
[  185.421266] __ieee80211_start_scan: scan requested OK
[  186.525760] ieee80211_scan_completed: aborted=0
[  186.525767] cfg80211_scan_done: scan done. aborted=0
[  186.526759] ieee80211_sta_req_auth: called
[  186.529091] ieee80211_scan_completed: exit
[  186.531133] wlan0: authenticate with AP 00:1b:9e:d8:77:02
[  186.533077] wlan0: authenticated
[  186.534122] ieee80211_sta_req_auth: called
[  186.534790] wlan0: associate with AP 00:1b:9e:d8:77:02
[  186.537498] wlan0: RX ReassocResp from 00:1b:9e:d8:77:02 (capab=0x411 status=0 aid=3)
[  186.537503] wlan0: associated
[  204.087221] wlan0: disassociating by local choice (reason=3)
[  204.313172] __ieee80211_start_scan: scan requested
[  204.314693] __ieee80211_start_scan: scan requested OK
[  205.402527] ieee80211_scan_completed: aborted=0
[  205.402531] cfg80211_scan_done: scan done. aborted=0
[  205.403202] ieee80211_sta_req_auth: called
[  205.406873] ieee80211_scan_completed: exit
[  205.410514] wlan0: authenticate with AP 00:1b:9e:d8:77:02
[  205.413127] wlan0: authenticated
[  205.413830] ieee80211_sta_req_auth: called
[  205.414665] wlan0: associate with AP 00:1b:9e:d8:77:02
[  205.417277] wlan0: RX ReassocResp from 00:1b:9e:d8:77:02 (capab=0x411 status=0 aid=3)
[  205.417281] wlan0: associated
[  216.111269] __ieee80211_start_scan: scan requested
[  216.111305] __ieee80211_start_scan: scan requested OK
[  217.190136] ieee80211_scan_completed: aborted=0
[  217.190144] cfg80211_scan_done: scan done. aborted=0
[  217.192401] ieee80211_scan_completed: exit
[  256.109448] __ieee80211_start_scan: scan requested
[  256.109484] __ieee80211_start_scan: scan requested OK
[  257.230114] ieee80211_scan_completed: aborted=0
[  257.230120] cfg80211_scan_done: scan done. aborted=0
[  257.232561] ieee80211_scan_completed: exit
[  280.550106] wlan0: disassociating by local choice (reason=3)
[  280.748587] __ieee80211_start_scan: scan requested
[  280.749576] __ieee80211_start_scan: scan requested OK
[  281.840068] ieee80211_scan_completed: aborted=0
[  281.840075] cfg80211_scan_done: scan done. aborted=0
[  281.841095] ieee80211_sta_req_auth: called
[  281.842168] ieee80211_scan_completed: exit
[  281.843850] wlan0: authenticate with AP 00:1b:9e:d8:77:02
[  281.845779] wlan0: authenticated
[  281.846719] ieee80211_sta_req_auth: called
[  281.847537] wlan0: associate with AP 00:1b:9e:d8:77:02
[  281.850972] wlan0: RX ReassocResp from 00:1b:9e:d8:77:02 (capab=0x411 status=0 aid=3)
[  281.850977] wlan0: associated
[  291.618214] wlan0: disassociating by local choice (reason=3)
[  291.813026] __ieee80211_start_scan: scan requested
[  291.817844] __ieee80211_start_scan: scan requested OK
[  292.902538] ieee80211_scan_completed: aborted=0
[  292.902543] cfg80211_scan_done: scan done. aborted=0
[  292.903432] ieee80211_sta_req_auth: called
[  292.904523] ieee80211_scan_completed: exit
[  292.906019] wlan0: authenticate with AP 00:23:4d:3c:80:27
[  292.907801] wlan0: authenticated
[  292.908539] ieee80211_sta_req_auth: called
[  292.909431] wlan0: associate with AP 00:23:4d:3c:80:27
[  292.911823] wlan0: RX ReassocResp from 00:23:4d:3c:80:27 (capab=0x401 status=0 aid=1)
[  292.911827] wlan0: associated
[  292.924959] cfg80211: Calling CRDA for country: IL
[  292.927402] cfg80211: Current regulatory domain updated by AP to: IL
[  292.927406] 	(start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[  292.927410] 	(2402000 KHz - 2477000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[  292.949903] ------------[ cut here ]------------
[  292.949930] WARNING: at /home/maxim/software/kernel/linux-2.6/net/wireless/reg.c:2174 set_regdom+0x3f6/0x4a0 [cfg80211]()
[  292.949933] Hardware name: Aspire 5720     
[  292.949935] Modules linked in: af_packet sco bridge stp llc bnep l2cap bluetooth vmnet vmblock vmci vmmon nfsd exportfs nfs lockd nfs_acl auth_rpcgss sunrpc usb_storage usb_libusual cpufreq_powersave cpufreq_conservative cpufreq_userspace acpi_cpufreq coretemp sbp2 joydev uvcvideo videodev v4l1_compat v4l2_compat_ioctl32 snd_hda_codec_realtek iwl3945 iwlcore mac80211 snd_hda_intel snd_hda_codec snd_hwdep acer_wmi rfkill snd_pcm tg3 backlight psmouse uhci_hcd ehci_hcd cfg80211 snd_timer ohci1394 sdhci_pci sdhci libphy serio_raw iTCO_wdt iTCO_vendor_support nvidia(P) usbcore snd_page_alloc wmi evdev fuse
[  292.949987] Pid: 6564, comm: crda Tainted: P           2.6.30-rc7-wl #22
[  292.949990] Call Trace:
[  292.950002]  [<ffffffffa08709b6>] ? set_regdom+0x3f6/0x4a0 [cfg80211]
[  292.950009]  [<ffffffff80244068>] warn_slowpath_common+0x78/0xd0
[  292.950013]  [<ffffffff802440cf>] warn_slowpath_null+0xf/0x20
[  292.950022]  [<ffffffffa08709b6>] set_regdom+0x3f6/0x4a0 [cfg80211]
[  292.950032]  [<ffffffffa0876ce2>] nl80211_set_reg+0x112/0x2c0 [cfg80211]
[  292.950038]  [<ffffffff803e652f>] ? nla_parse+0xef/0x110
[  292.950043]  [<ffffffff805134e6>] genl_rcv_msg+0x1b6/0x1f0
[  292.950047]  [<ffffffff80513330>] ? genl_rcv_msg+0x0/0x1f0
[  292.950052]  [<ffffffff80512b19>] netlink_rcv_skb+0x89/0xb0
[  292.950055]  [<ffffffff80513317>] genl_rcv+0x27/0x40
[  292.950059]  [<ffffffff80512679>] ? netlink_sendmsg+0x159/0x300
[  292.950063]  [<ffffffff80512504>] netlink_unicast+0x2c4/0x2e0
[  292.950068]  [<ffffffff804f337e>] ? __alloc_skb+0x6e/0x150
[  292.950072]  [<ffffffff8051271e>] netlink_sendmsg+0x1fe/0x300
[  292.950076]  [<ffffffff8031f320>] ? proc_delete_inode+0x0/0x50
[  292.950080]  [<ffffffff804ea457>] sock_sendmsg+0x127/0x140
[  292.950085]  [<ffffffff8025be00>] ? autoremove_wake_function+0x0/0x40
[  292.950090]  [<ffffffff802d8fda>] ? __link_path_walk+0x78a/0x1010
[  292.950095]  [<ffffffff8029f6c6>] ? get_page_from_freelist+0x3b6/0x650
[  292.950099]  [<ffffffff802996d5>] ? find_lock_page+0x25/0x70
[  292.950103]  [<ffffffff804e909b>] ? move_addr_to_kernel+0x2b/0x40
[  292.950107]  [<ffffffff804f499c>] ? verify_iovec+0x3c/0xd0
[  292.950111]  [<ffffffff804ea5f9>] sys_sendmsg+0x189/0x320
[  292.950114]  [<ffffffff804eb485>] ? move_addr_to_user+0x65/0x80
[  292.950119]  [<ffffffff802b13d1>] ? handle_mm_fault+0x1e1/0x830
[  292.950124]  [<ffffffff803d8a71>] ? __up_read+0x91/0xb0
[  292.950130]  [<ffffffff8020bf2b>] system_call_fastpath+0x16/0x1b
[  292.950133] ---[ end trace 2f9541b4b18ff046 ]---
[  293.019646] ACPI Warning (utdelete-0421): Large Reference Count (5070) in object ffff880059c96060 [20090320]
[  293.019671] general protection fault: 0000 [#1] PREEMPT SMP 
[  293.019677] last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
[  293.019680] CPU 1 
[  293.019682] Modules linked in: af_packet sco bridge stp llc bnep l2cap bluetooth vmnet vmblock vmci vmmon nfsd exportfs nfs lockd nfs_acl auth_rpcgss sunrpc usb_storage usb_libusual cpufreq_powersave cpufreq_conservative cpufreq_userspace acpi_cpufreq coretemp sbp2 joydev uvcvideo videodev v4l1_compat v4l2_compat_ioctl32 snd_hda_codec_realtek iwl3945 iwlcore mac80211 snd_hda_intel snd_hda_codec snd_hwdep acer_wmi rfkill snd_pcm tg3 backlight psmouse uhci_hcd ehci_hcd cfg80211 snd_timer ohci1394 sdhci_pci sdhci libphy serio_raw iTCO_wdt iTCO_vendor_support nvidia(P) usbcore snd_page_alloc wmi evdev fuse
[  293.019740] Pid: 9, comm: events/1 Tainted: P        W  2.6.30-rc7-wl #22 Aspire 5720     
[  293.019743] RIP: 0010:[<ffffffff8043436f>]  [<ffffffff8043436f>] acpi_ut_update_object_reference+0x29/0x160
[  293.019753] RSP: 0018:ffff88007f893c20  EFLAGS: 00010206
[  293.019756] RAX: ffff880059c96100 RBX: 305f545faf03000f RCX: 000000000001ffff
[  293.019758] RDX: 0000000000000001 RSI: 0000000000000001 RDI: 305f545faf03000f
[  293.019761] RBP: ffff88007f893c60 R08: 0000000000000000 R09: 000000000000000c
[  293.019764] R10: 0000000000000010 R11: 0000000000000000 R12: 0000000000000000
[  293.019767] R13: ffff880059e4ffc0 R14: 0000000000000001 R15: ffff88007f893c30
[  293.019770] FS:  0000000000000000(0000) GS:ffff88000102b000(0000) knlGS:0000000000000000
[  293.019773] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[  293.019776] CR2: 00007f4820d45948 CR3: 0000000000201000 CR4: 00000000000006e0
[  293.019779] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  293.019782] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[  293.019785] Process events/1 (pid: 9, threadinfo ffff88007f892000, task ffff88007f88d800)
[  293.019787] Stack:
[  293.019789]  ffff88007f893c40 ffffffff802604f4 0000000000000000 0000000000000002
[  293.019794]  0000000000000000 ffff880059e4ffc0 ffff88006adea870 0000000000000040
[  293.019799]  ffff88007f893ca0 ffffffff8042f885 ffff880000000003 ffff880059e4ffc0
[  293.019804] Call Trace:
[  293.019807]  [<ffffffff802604f4>] ? up+0x34/0x50
[  293.019813]  [<ffffffff8042f885>] acpi_ps_execute_method+0x260/0x29b
[  293.019818]  [<ffffffff8042b8e6>] acpi_ns_evaluate+0xee/0x1b8
[  293.019823]  [<ffffffff8042b340>] acpi_evaluate_object+0x1c0/0x2c8
[  293.019828]  [<ffffffffa001d6d8>] wmi_evaluate_method+0x108/0x130 [wmi]
[  293.019836]  [<ffffffff8058400c>] ? thread_return+0x3e/0x712
[  293.019842]  [<ffffffffa09017d0>] ? acer_rfkill_update+0x0/0xa0 [acer_wmi]
[  293.019848]  [<ffffffffa090117c>] WMI_execute_u32+0x4c/0x90 [acer_wmi]
[  293.019855]  [<ffffffffa0901620>] get_u32+0x90/0x100 [acer_wmi]
[  293.019860]  [<ffffffffa09017ea>] acer_rfkill_update+0x1a/0xa0 [acer_wmi]
[  293.019866]  [<ffffffff80257293>] worker_thread+0x1a3/0x2a0
[  293.019872]  [<ffffffff8025be00>] ? autoremove_wake_function+0x0/0x40
[  293.019876]  [<ffffffff802570f0>] ? worker_thread+0x0/0x2a0
[  293.019881]  [<ffffffff802570f0>] ? worker_thread+0x0/0x2a0
[  293.019885]  [<ffffffff8025b906>] kthread+0x56/0x90
[  293.019888]  [<ffffffff8020ceaa>] child_rip+0xa/0x20
[  293.019894]  [<ffffffff8025b8b0>] ? kthread+0x0/0x90
[  293.019898]  [<ffffffff8020cea0>] ? child_rip+0x0/0x20
[  293.019902] Code: c9 c3 55 48 89 e5 41 57 4c 8d 7d d0 41 56 44 0f b7 f6 41 55 41 54 53 48 89 fb 48 83 ec 18 48 c7 45 d0 00 00 00 00 e9 db 00 00 00 <80> 7b 08 0f 0f 84 18 01 00 00 8a 43 09 83 e8 04 3c 10 0f 87 92 
[  293.019944] RIP  [<ffffffff8043436f>] acpi_ut_update_object_reference+0x29/0x160
[  293.019949]  RSP <ffff88007f893c20>
[  293.019953] ---[ end trace 2f9541b4b18ff047 ]---
[  300.040055] Machine check events logged
[  316.108981] __ieee80211_start_scan: scan requested
[  316.109019] __ieee80211_start_scan: scan requested OK
[  316.990131] ieee80211_scan_completed: aborted=0
[  316.990137] cfg80211_scan_done: scan done. aborted=0
[  316.992259] ieee80211_scan_completed: exit
[  356.108655] __ieee80211_start_scan: scan requested
[  356.108688] __ieee80211_start_scan: scan requested OK
[  357.040180] ieee80211_scan_completed: aborted=0
[  357.040187] cfg80211_scan_done: scan done. aborted=0
[  357.042408] ieee80211_scan_completed: exit
[  357.353562] wlan0: deauthenticated (Reason: 2)
[  357.571451] __ieee80211_start_scan: scan requested
[  357.571463] __ieee80211_start_scan: scan requested OK
[  358.490047] ieee80211_scan_completed: aborted=0
[  358.490054] cfg80211_scan_done: scan done. aborted=0
[  358.491036] ieee80211_sta_req_auth: called
[  358.492940] ieee80211_scan_completed: exit
[  358.494591] wlan0: authenticate with AP 00:23:4d:3c:80:27
[  358.690140] wlan0: authenticate with AP 00:23:4d:3c:80:27
[  358.890130] wlan0: authenticate with AP 00:23:4d:3c:80:27
[  359.090133] wlan0: authentication with AP 00:23:4d:3c:80:27 timed out
[  359.090991] iw[6379]: segfault at 0 ip 00007fbaa96e5da0 sp 00007fffd6595438 error 4 in libnl.so.1.1[7fbaa96ce000+4c000]
[  364.094383] __ieee80211_start_scan: scan requested
[  364.095187] __ieee80211_start_scan: scan requested OK
[  365.000124] ieee80211_scan_completed: aborted=0
[  365.000131] cfg80211_scan_done: scan done. aborted=0
[  365.002809] ieee80211_scan_completed: exit
[  370.002313] __ieee80211_start_scan: scan requested
[  370.003079] __ieee80211_start_scan: scan requested OK
[  370.900078] ieee80211_scan_completed: aborted=0
[  370.900085] cfg80211_scan_done: scan done. aborted=0
[  370.902744] ieee80211_scan_completed: exit
[  375.901940] __ieee80211_start_scan: scan requested
[  375.902792] __ieee80211_start_scan: scan requested OK
[  376.810135] ieee80211_scan_completed: aborted=0
[  376.810144] cfg80211_scan_done: scan done. aborted=0
[  376.812755] ieee80211_scan_completed: exit
[  381.811874] __ieee80211_start_scan: scan requested
[  381.812732] __ieee80211_start_scan: scan requested OK
[  382.720105] ieee80211_scan_completed: aborted=0
[  382.720113] cfg80211_scan_done: scan done. aborted=0
[  382.723065] ieee80211_scan_completed: exit
[  387.721894] __ieee80211_start_scan: scan requested
[  387.722568] __ieee80211_start_scan: scan requested OK
[  388.640124] ieee80211_scan_completed: aborted=0
[  388.640132] cfg80211_scan_done: scan done. aborted=0
[  388.642814] ieee80211_scan_completed: exit
[  393.641688] __ieee80211_start_scan: scan requested
[  393.642450] __ieee80211_start_scan: scan requested OK
[  394.530109] ieee80211_scan_completed: aborted=0
[  394.530116] cfg80211_scan_done: scan done. aborted=0
[  394.532814] ieee80211_scan_completed: exit
[  416.108551] __ieee80211_start_scan: scan requested
[  416.109191] __ieee80211_start_scan: scan requested OK
[  417.010130] ieee80211_scan_completed: aborted=0
[  417.010138] cfg80211_scan_done: scan done. aborted=0
[  417.012814] ieee80211_scan_completed: exit

Re: [BUG] Crda oopses the system

[Maxim Levitsky]

On Sun, 2009-05-31 at 23:54 +0300, Maxim Levitsky wrote:
> On Sun, 2009-05-31 at 15:47 +0300, Maxim Levitsky wrote:
> > On Sun, 2009-05-31 at 02:22 -0400, Luis R. Rodriguez wrote:
> > > On Fri, May 22, 2009 at 01:08:22PM +0300, Maxim Levitsky wrote:
> > > > I am talking about 
> > > > 
> > > > BUG_ON(!country_ie_regdomain);
> > > > in net/wireless/reg.c
> > > 
> > > Please try this patch and leave a window open with this running:
> > > 
> > > iw event
> > > 
> > > Please be sure to grab iw from git, not sure if the reg events
> > > have all gone into an official release yet. What I'm looking for
> > > is whether or not a previous 11d setting was already processed
> > > or if the !country_ie_regdomain condition happens from the first
> > > 11d processing.
> > > 
> > >   Luis
> > > 
> > > diff --git a/net/wireless/reg.c b/net/wireless/reg.c
> > > index f87ac1d..1b60dfc 100644
> > > --- a/net/wireless/reg.c
> > > +++ b/net/wireless/reg.c
> > > @@ -2171,7 +2171,11 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
> > >  	 * the country IE rd with what CRDA believes that country should have
> > >  	 */
> > >  
> > > -	BUG_ON(!country_ie_regdomain);
> > > +	if (WARN_ON(!country_ie_regdomain)) {
> > > +		kfree(rd);
> > > +		rd = NULL;
> > > +		return -EINVAL;
> > > +	}
> > >  	BUG_ON(rd == country_ie_regdomain);
> > >  
> > >  	/*
> > > @@ -2268,6 +2272,8 @@ int regulatory_init(void)
> > >  	if (IS_ERR(reg_pdev))
> > >  		return PTR_ERR(reg_pdev);
> > >  
> > > +	country_ie_regdomain = NULL;
> > > +
> > >  	spin_lock_init(&reg_requests_lock);
> > >  	spin_lock_init(&reg_pending_beacons_lock);
> > >  
> > 
> > 
> > I'll test this today.
> > I have iw from git.
> > 
> > Best regards,
> > 	Maxim Levitsky
> > 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> Here it is:
> 
> 
> > wlan0 (phy #0): assoc 00:1b:9e:d8:77:02 -> 00:1b:77:f1:7c:29 status: 0: Successful
> > wlan0 (phy #0): disassoc 00:1b:77:f1:7c:29 -> 00:1b:9e:d8:77:02 reason 3: Deauthenticated because sending station is leaving (or has left) the IBSS or ESS
> > wlan0 (phy #0): scan finished
> > wlan0 (phy #0): auth 00:23:4d:3c:80:27 -> 00:1b:77:f1:7c:29 status: 0: Successful
> > wlan0 (phy #0): assoc 00:23:4d:3c:80:27 -> 00:1b:77:f1:7c:29 status: 0: Successful
> > phy #0: regulatory domain change: intersection used due to a request made by a country IE on phy0
> > 
> dmesg attached (I use nvidia drivers)
> 
> 
> 
> On top of that there are few more very bold bugs in ath5k AP mode:
> 
> 
> 1 - beacons are send only after I start hostapd twise (kill it, and
> start again)
> 
> 2 - ath5k makes kernel panic, reliably after few times hostapd have
> started, I didn't yet captured the output.
> I remember to see panics with ad-hoc as well. 
> I mean blinking leds on keyboard.
> 
> 3 - couldn't transfer any frames between AP and client, only association
> works.
> 
> I have started the hostapd, associated the clent (using link-local
> feature of NM) assigned both ap and client an ip address (ifconfig wlan0
> 10.1.0.1/24 on AP, and ifconfig wlan0 10.1.0.2/24 on client ) and yet
> even I couldn't receive even a arp reply from AP, and vise versa.
> 
> I use hostapd and wpa_supplicant frm latest git.

4 - transfers freeze very often, now I understand that this isn't
related to transfer speed or anything like that, just if the device is
on moderate load (1.1 Mbytes/s transfer via AP to my main notebook) will
play dead every 5 minutes or so. Even running 'iwlist scan', which
supposed to reset phy, doesn't help.

(This isn't related to AP mode)


You have the documentation, maybe you can look what is wrong?



Best regards,
	Maxim Levitsky

Re: [BUG] Crda oopses the system

[Luis R. Rodriguez]

On Sun, May 31, 2009 at 1:54 PM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> On Sun, 2009-05-31 at 15:47 +0300, Maxim Levitsky wrote:
>> On Sun, 2009-05-31 at 02:22 -0400, Luis R. Rodriguez wrote:
>> > On Fri, May 22, 2009 at 01:08:22PM +0300, Maxim Levitsky wrote:
>> > > I am talking about
>> > >
>> > > BUG_ON(!country_ie_regdomain);
>> > > in net/wireless/reg.c
>> >
>> > Please try this patch and leave a window open with this running:
>> >
>> > iw event
>> >
>> > Please be sure to grab iw from git, not sure if the reg events
>> > have all gone into an official release yet. What I'm looking for
>> > is whether or not a previous 11d setting was already processed
>> > or if the !country_ie_regdomain condition happens from the first
>> > 11d processing.
>> >
>> >   Luis
>> >
>> > diff --git a/net/wireless/reg.c b/net/wireless/reg.c
>> > index f87ac1d..1b60dfc 100644
>> > --- a/net/wireless/reg.c
>> > +++ b/net/wireless/reg.c
>> > @@ -2171,7 +2171,11 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
>> >      * the country IE rd with what CRDA believes that country should have
>> >      */
>> >
>> > -   BUG_ON(!country_ie_regdomain);
>> > +   if (WARN_ON(!country_ie_regdomain)) {
>> > +           kfree(rd);
>> > +           rd = NULL;
>> > +           return -EINVAL;
>> > +   }
>> >     BUG_ON(rd == country_ie_regdomain);
>> >
>> >     /*
>> > @@ -2268,6 +2272,8 @@ int regulatory_init(void)
>> >     if (IS_ERR(reg_pdev))
>> >             return PTR_ERR(reg_pdev);
>> >
>> > +   country_ie_regdomain = NULL;
>> > +
>> >     spin_lock_init(&reg_requests_lock);
>> >     spin_lock_init(&reg_pending_beacons_lock);
>> >
>>
>>
>> I'll test this today.
>> I have iw from git.
>>
>> Best regards,
>>       Maxim Levitsky
>>
>
>
>
>
>
>
>
>
>
>
> Here it is:
>
>
>> wlan0 (phy #0): assoc 00:1b:9e:d8:77:02 -> 00:1b:77:f1:7c:29 status: 0: Successful
>> wlan0 (phy #0): disassoc 00:1b:77:f1:7c:29 -> 00:1b:9e:d8:77:02 reason 3: Deauthenticated because sending station is leaving (or has left) the IBSS or ESS
>> wlan0 (phy #0): scan finished
>> wlan0 (phy #0): auth 00:23:4d:3c:80:27 -> 00:1b:77:f1:7c:29 status: 0: Successful
>> wlan0 (phy #0): assoc 00:23:4d:3c:80:27 -> 00:1b:77:f1:7c:29 status: 0: Successful
>> phy #0: regulatory domain change: intersection used due to a request made by a country IE on phy0
>>
> dmesg attached (I use nvidia drivers)

I see only one userspace request *attempt* sent for the country IE in
your log ("Calling CRDA" bits). So my assumption that we were only
"trying" to send to userspace one request for the given country IE as
far as cfg80211 is concerned is accurate however it does not seem
accurate that the kernel won't send two requests or that userspace
will not respond twice.

> On top of that there are few more very bold bugs in ath5k AP mode:

Your best bet is to report these separately.

  Luis

Re: [BUG] Crda oopses the system

[Maxim Levitsky]

On Sun, 2009-05-31 at 15:24 -0700, Luis R. Rodriguez wrote:
> On Sun, May 31, 2009 at 1:54 PM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> > On Sun, 2009-05-31 at 15:47 +0300, Maxim Levitsky wrote:
> >> On Sun, 2009-05-31 at 02:22 -0400, Luis R. Rodriguez wrote:
> >> > On Fri, May 22, 2009 at 01:08:22PM +0300, Maxim Levitsky wrote:
> >> > > I am talking about
> >> > >
> >> > > BUG_ON(!country_ie_regdomain);
> >> > > in net/wireless/reg.c
> >> >
> >> > Please try this patch and leave a window open with this running:
> >> >
> >> > iw event
> >> >
> >> > Please be sure to grab iw from git, not sure if the reg events
> >> > have all gone into an official release yet. What I'm looking for
> >> > is whether or not a previous 11d setting was already processed
> >> > or if the !country_ie_regdomain condition happens from the first
> >> > 11d processing.
> >> >
> >> >   Luis
> >> >
> >> > diff --git a/net/wireless/reg.c b/net/wireless/reg.c
> >> > index f87ac1d..1b60dfc 100644
> >> > --- a/net/wireless/reg.c
> >> > +++ b/net/wireless/reg.c
> >> > @@ -2171,7 +2171,11 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
> >> >      * the country IE rd with what CRDA believes that country should have
> >> >      */
> >> >
> >> > -   BUG_ON(!country_ie_regdomain);
> >> > +   if (WARN_ON(!country_ie_regdomain)) {
> >> > +           kfree(rd);
> >> > +           rd = NULL;
> >> > +           return -EINVAL;
> >> > +   }
> >> >     BUG_ON(rd == country_ie_regdomain);
> >> >
> >> >     /*
> >> > @@ -2268,6 +2272,8 @@ int regulatory_init(void)
> >> >     if (IS_ERR(reg_pdev))
> >> >             return PTR_ERR(reg_pdev);
> >> >
> >> > +   country_ie_regdomain = NULL;
> >> > +
> >> >     spin_lock_init(&reg_requests_lock);
> >> >     spin_lock_init(&reg_pending_beacons_lock);
> >> >
> >>
> >>
> >> I'll test this today.
> >> I have iw from git.
> >>
> >> Best regards,
> >>       Maxim Levitsky
> >>
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > Here it is:
> >
> >
> >> wlan0 (phy #0): assoc 00:1b:9e:d8:77:02 -> 00:1b:77:f1:7c:29 status: 0: Successful
> >> wlan0 (phy #0): disassoc 00:1b:77:f1:7c:29 -> 00:1b:9e:d8:77:02 reason 3: Deauthenticated because sending station is leaving (or has left) the IBSS or ESS
> >> wlan0 (phy #0): scan finished
> >> wlan0 (phy #0): auth 00:23:4d:3c:80:27 -> 00:1b:77:f1:7c:29 status: 0: Successful
> >> wlan0 (phy #0): assoc 00:23:4d:3c:80:27 -> 00:1b:77:f1:7c:29 status: 0: Successful
> >> phy #0: regulatory domain change: intersection used due to a request made by a country IE on phy0
> >>
> > dmesg attached (I use nvidia drivers)
> 
> I see only one userspace request *attempt* sent for the country IE in
> your log ("Calling CRDA" bits). So my assumption that we were only
> "trying" to send to userspace one request for the given country IE as
> far as cfg80211 is concerned is accurate however it does not seem
> accurate that the kernel won't send two requests or that userspace
> will not respond twice.
> 
> > On top of that there are few more very bold bugs in ath5k AP mode:
> 
> Your best bet is to report these separately.
I did report some, I will report the reset, this is just a remainder,
cause today I had really bad time with ath5k. I was trying to compile
kernel on aspire one using distcc.

Thanks a lot for fixing the crda bug. I guess there is no need to test
it, I already had that test removed, and everything did work fine.



Best regards,
	Maxim Levitsky

Re: [BUG] Crda oopses the system

[Bob Copeland]

On Sun, May 31, 2009 at 11:54:13PM +0300, Maxim Levitsky wrote:
> 2 - ath5k makes kernel panic, reliably after few times hostapd have
> started, I didn't yet captured the output.
> I remember to see panics with ad-hoc as well. 
> I mean blinking leds on keyboard.

This should be fixed at least with a patch I recently posted to
linux-wireless.

> 3 - couldn't transfer any frames between AP and client, only association
> works.

Yeah I still plan to fix it, just haven't found cycles for it yet.

-- 
Bob Copeland %% www.bobcopeland.com