LinuxQuestions.org
Welcome to the most active Linux Forum on the web.
Home Forums Tutorials Articles Register
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Distributions > Slackware
User Name
Password
Slackware This Forum is for the discussion of Slackware Linux.

Notices


Reply
  Search this Thread
Old 01-18-2016, 01:39 PM   #1
javigarri
LQ Newbie
 
Registered: Jan 2016
Posts: 14

Rep: Reputation: Disabled
Problemas con Kernel 4.4.0


Hola a todos.
Este es mi primer post en LQ.

El problema es que actualizando al kernel 4.4.0 el sistema arranca muy lento. Una vez arrancado parece funcionar bien.
Sin embargo apagar la máquina no lo realiza correctamente y deja el disco con inconsistencias.

Al volver a arrancar realiza un fsck.

He vuelto a mi kernel 4.1.15, que funciona bien.

En el log del sistema vi esto:

Jan 16 22:44:08 serv kernel: [ 4.428891] BUG: unable to handle kernel NULL pointer dereference at 0000000000000d20
Jan 16 22:44:08 serv kernel: [ 4.428954] IP: [<ffffffffc0555483>] asus_sysfs_is_visible+0x13/0x1d0 [asus_laptop]
Jan 16 22:44:08 serv kernel: [ 4.429009] PGD 14a37f067 PUD 14a391067 PMD 0
Jan 16 22:44:08 serv kernel: [ 4.429046] Oops: 0000 [#1] SMP
Jan 16 22:44:08 serv kernel: [ 4.429073] Modules linked in: hwmon ohci_pci(+) asus_laptop(+) i2c_piix4 sparse_keymap drm input_polldev agpgart i2c_algo_bit fb_sys_fops syscopyarea sysfillrect sysimgblt snd_hda_intel cfg80211 sdhci_pci snd_hda_codec i2c_core sdhci ohci_hcd snd_hda_core ehci_pci snd_hwdep ehci_hcd snd_pcm rfkill mmc_core jme jmb38x_ms snd_timer usbcore snd mii memstick soundcore usb_common shpchp rtc_cmos acpi_cpufreq tpm_tis video tpm battery processor thermal button ac loop
Jan 16 22:44:08 serv kernel: [ 4.429442] CPU: 2 PID: 529 Comm: udevd Not tainted 4.4.0inet #4
Jan 16 22:44:08 serv kernel: [ 4.429481] Hardware name: ASUSTeK Computer Inc. K52Dr/K52Dr, BIOS K52Dr.213 01/27/2011
Jan 16 22:44:08 serv kernel: [ 4.429535] task: ffff8800ab921580 ti: ffff88014a3b0000 task.ti: ffff88014a3b0000
Jan 16 22:44:08 serv kernel: [ 4.429581] RIP: 0010:[<ffffffffc0555483>] [<ffffffffc0555483>] asus_sysfs_is_visible+0x13/0x1d0 [asus_laptop]
Jan 16 22:44:08 serv kernel: [ 4.429649] RSP: 0018:ffff88014a3b3ad0 EFLAGS: 00010282
Jan 16 22:44:08 serv kernel: [ 4.429682] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
Jan 16 22:44:08 serv kernel: [ 4.429726] RDX: 0000000000000000 RSI: ffffffffc0556c20 RDI: ffff8800ae1c1020
Jan 16 22:44:08 serv kernel: [ 4.429770] RBP: ffff88014a3b3ae0 R08: 0000000000000000 R09: 0000000000000124
Jan 16 22:44:08 serv kernel: [ 4.429813] R10: ffffea0002bb9c80 R11: ffff8800ae0f42a0 R12: ffffffffc0556100
Jan 16 22:44:08 serv kernel: [ 4.429857] R13: 0000000000000000 R14: ffff8800ae083bb8 R15: ffffffffc0556a80
Jan 16 22:44:08 serv kernel: [ 4.429901] FS: 00007f10ce6ef780(0000) GS:ffff88014fd00000(0000) knlGS:0000000000000000
Jan 16 22:44:08 serv kernel: [ 4.429950] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jan 16 22:44:08 serv kernel: [ 4.429986] CR2: 0000000000000d20 CR3: 000000014a2b2000 CR4: 00000000000006e0
Jan 16 22:44:08 serv kernel: [ 4.430029] Stack:
Jan 16 22:44:08 serv kernel: [ 4.431068] 0000000000000000 ffffffffc0556100 ffff88014a3b3b28 ffffffff8121f62b
Jan 16 22:44:08 serv kernel: [ 4.432137] 0000000000000000 ffff8800ae1c1020 ffff8800aedd8000 0000000000000000
Jan 16 22:44:08 serv kernel: [ 4.433210] 0000000000000000 ffffffffc05559a9 0000000000000001 ffff88014a3b3b38
Jan 16 22:44:08 serv kernel: [ 4.434296] Call Trace:
Jan 16 22:44:08 serv kernel: [ 4.435383] [<ffffffff8121f62b>] internal_create_group+0xbb/0x310
Jan 16 22:44:08 serv kernel: [ 4.436502] [<ffffffff8121f893>] sysfs_create_group+0x13/0x20
Jan 16 22:44:08 serv kernel: [ 4.438730] [<ffffffffc055498d>] asus_acpi_add+0x3ad/0xe90 [asus_laptop]
Jan 16 22:44:08 serv kernel: [ 4.439843] [<ffffffff813e457e>] acpi_device_probe+0x4f/0xf5
Jan 16 22:44:08 serv kernel: [ 4.440937] [<ffffffff8146ba0a>] driver_probe_device+0x1fa/0x310
Jan 16 22:44:08 serv kernel: [ 4.442016] [<ffffffff8146bbbd>] __driver_attach+0x9d/0xa0
Jan 16 22:44:08 serv kernel: [ 4.443096] [<ffffffff8146bb20>] ? driver_probe_device+0x310/0x310
Jan 16 22:44:08 serv kernel: [ 4.444154] [<ffffffff814699f4>] bus_for_each_dev+0x64/0xa0
Jan 16 22:44:08 serv kernel: [ 4.445180] [<ffffffff8146b2ae>] driver_attach+0x1e/0x20
Jan 16 22:44:08 serv kernel: [ 4.446174] [<ffffffff8146aed3>] bus_add_driver+0x1c3/0x240
Jan 16 22:44:08 serv kernel: [ 4.447140] [<ffffffffc0559000>] ? 0xffffffffc0559000
Jan 16 22:44:08 serv kernel: [ 4.448075] [<ffffffff8146c3e0>] driver_register+0x60/0xe0
Jan 16 22:44:08 serv kernel: [ 4.448998] [<ffffffff813e444d>] acpi_bus_register_driver+0x3b/0x43
Jan 16 22:44:08 serv kernel: [ 4.449908] [<ffffffffc055902a>] asus_laptop_init+0x2a/0x5d [asus_laptop]
Jan 16 22:44:08 serv kernel: [ 4.450804] [<ffffffff810003d5>] do_one_initcall+0x95/0x1d0
Jan 16 22:44:08 serv kernel: [ 4.451676] [<ffffffff8117bf20>] ? __vunmap+0x90/0xe0
Jan 16 22:44:08 serv kernel: [ 4.453359] [<ffffffff8118cf1f>] ? kmem_cache_alloc_trace+0x16f/0x1f0
Jan 16 22:44:08 serv kernel: [ 4.454207] [<ffffffff8118c75e>] ? kfree+0x11e/0x130
Jan 16 22:44:08 serv kernel: [ 4.455048] [<ffffffff8113dd66>] do_init_module+0x5f/0x1dd
Jan 16 22:44:08 serv kernel: [ 4.455883] [<ffffffff810e1f63>] load_module+0x1ea3/0x2270
Jan 16 22:44:08 serv kernel: [ 4.456708] [<ffffffff810de860>] ? __symbol_put+0x50/0x50
Jan 16 22:44:08 serv kernel: [ 4.457537] [<ffffffff810e250f>] SyS_finit_module+0x9f/0xb0
Jan 16 22:44:08 serv kernel: [ 4.458349] [<ffffffff816b4f5b>] entry_SYSCALL_64_fastpath+0x16/0x6e
Jan 16 22:44:08 serv kernel: [ 4.459153] Code: c0 e8 74 87 be c0 4c 89 f7 e8 0a 6c f4 ff e9 27 ff ff ff 0f 1f 44 00 00 0f 1f 44 00 00 55 48 89 e5 41 54 53 48 8b 87 90 00 00 00 <4c> 8b a0 20 0d 00 00 0f b6 80 95 0c 00 00 84 c0 74 1a 48 81 fe
Jan 16 22:44:08 serv kernel: [ 4.461789] RIP [<ffffffffc0555483>] asus_sysfs_is_visible+0x13/0x1d0 [asus_laptop]
Jan 16 22:44:08 serv kernel: [ 4.462660] RSP <ffff88014a3b3ad0>
Jan 16 22:44:08 serv kernel: [ 4.463514] CR2: 0000000000000d20
Jan 16 22:44:08 serv kernel: [ 4.464375] ---[ end trace a9bb450c67b460e0 ]---



Mi equipo es un portátil Asus K52Dr (tiene unos 5 años).
Espero que alguien pueda ayudar.


Gracias de antemano,
Javier García
 
Old 01-19-2016, 07:51 AM   #2
michaelk
Moderator
 
Registered: Aug 2002
Posts: 25,749

Rep: Reputation: 5928Reputation: 5928Reputation: 5928Reputation: 5928Reputation: 5928Reputation: 5928Reputation: 5928Reputation: 5928Reputation: 5928Reputation: 5928Reputation: 5928
Welcome to LinuxQuestions.

Per the rules:
Quote:
All member-created content should be in English. This allows our moderators to ensure all content complies with all LQ rules.
 
2 members found this post helpful.
Old 01-19-2016, 08:26 AM   #3
Didier Spaier
LQ Addict
 
Registered: Nov 2008
Location: Paris, France
Distribution: Slint64-15.0
Posts: 11,063

Rep: Reputation: Disabled
Hi javier,

let me help translate to English:
---
Hello everybody,

this is my first post at LQ.

The issue is that after upgrade of the kernel to 4.4.0 the system starts very slowly.

Once started it seems to work well.

But leaving the machine running I found inconsistencies on the hard drive: at restart a fsck is triggered.

I did go back to kernel 4.1.15 that works well.

In the system logs I saw this:
Code:
Jan 16 22:44:08 serv kernel: [ 4.428891] BUG: unable to handle kernel NULL pointer dereference at 0000000000000d20
Jan 16 22:44:08 serv kernel: [ 4.428954] IP: [<ffffffffc0555483>] asus_sysfs_is_visible+0x13/0x1d0 [asus_laptop]
Jan 16 22:44:08 serv kernel: [ 4.429009] PGD 14a37f067 PUD 14a391067 PMD 0
Jan 16 22:44:08 serv kernel: [ 4.429046] Oops: 0000 [#1] SMP
Jan 16 22:44:08 serv kernel: [ 4.429073] Modules linked in: hwmon ohci_pci(+) asus_laptop(+) i2c_piix4 sparse_keymap drm input_polldev agpgart i2c_algo_bit fb_sys_fops syscopyarea sysfillrect sysimgblt snd_hda_intel cfg80211 sdhci_pci snd_hda_codec i2c_core sdhci ohci_hcd snd_hda_core ehci_pci snd_hwdep ehci_hcd snd_pcm rfkill mmc_core jme jmb38x_ms snd_timer usbcore snd mii memstick soundcore usb_common shpchp rtc_cmos acpi_cpufreq tpm_tis video tpm battery processor thermal button ac loop
Jan 16 22:44:08 serv kernel: [ 4.429442] CPU: 2 PID: 529 Comm: udevd Not tainted 4.4.0inet #4
Jan 16 22:44:08 serv kernel: [ 4.429481] Hardware name: ASUSTeK Computer Inc. K52Dr/K52Dr, BIOS K52Dr.213 01/27/2011
Jan 16 22:44:08 serv kernel: [ 4.429535] task: ffff8800ab921580 ti: ffff88014a3b0000 task.ti: ffff88014a3b0000
Jan 16 22:44:08 serv kernel: [ 4.429581] RIP: 0010:[<ffffffffc0555483>] [<ffffffffc0555483>] asus_sysfs_is_visible+0x13/0x1d0 [asus_laptop]
Jan 16 22:44:08 serv kernel: [ 4.429649] RSP: 0018:ffff88014a3b3ad0 EFLAGS: 00010282
Jan 16 22:44:08 serv kernel: [ 4.429682] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
Jan 16 22:44:08 serv kernel: [ 4.429726] RDX: 0000000000000000 RSI: ffffffffc0556c20 RDI: ffff8800ae1c1020
Jan 16 22:44:08 serv kernel: [ 4.429770] RBP: ffff88014a3b3ae0 R08: 0000000000000000 R09: 0000000000000124
Jan 16 22:44:08 serv kernel: [ 4.429813] R10: ffffea0002bb9c80 R11: ffff8800ae0f42a0 R12: ffffffffc0556100
Jan 16 22:44:08 serv kernel: [ 4.429857] R13: 0000000000000000 R14: ffff8800ae083bb8 R15: ffffffffc0556a80
Jan 16 22:44:08 serv kernel: [ 4.429901] FS: 00007f10ce6ef780(0000) GS:ffff88014fd00000(0000) knlGS:0000000000000000
Jan 16 22:44:08 serv kernel: [ 4.429950] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jan 16 22:44:08 serv kernel: [ 4.429986] CR2: 0000000000000d20 CR3: 000000014a2b2000 CR4: 00000000000006e0
Jan 16 22:44:08 serv kernel: [ 4.430029] Stack:
Jan 16 22:44:08 serv kernel: [ 4.431068] 0000000000000000 ffffffffc0556100 ffff88014a3b3b28 ffffffff8121f62b
Jan 16 22:44:08 serv kernel: [ 4.432137] 0000000000000000 ffff8800ae1c1020 ffff8800aedd8000 0000000000000000
Jan 16 22:44:08 serv kernel: [ 4.433210] 0000000000000000 ffffffffc05559a9 0000000000000001 ffff88014a3b3b38
Jan 16 22:44:08 serv kernel: [ 4.434296] Call Trace:
Jan 16 22:44:08 serv kernel: [ 4.435383] [<ffffffff8121f62b>] internal_create_group+0xbb/0x310
Jan 16 22:44:08 serv kernel: [ 4.436502] [<ffffffff8121f893>] sysfs_create_group+0x13/0x20
Jan 16 22:44:08 serv kernel: [ 4.438730] [<ffffffffc055498d>] asus_acpi_add+0x3ad/0xe90 [asus_laptop]
Jan 16 22:44:08 serv kernel: [ 4.439843] [<ffffffff813e457e>] acpi_device_probe+0x4f/0xf5
Jan 16 22:44:08 serv kernel: [ 4.440937] [<ffffffff8146ba0a>] driver_probe_device+0x1fa/0x310
Jan 16 22:44:08 serv kernel: [ 4.442016] [<ffffffff8146bbbd>] __driver_attach+0x9d/0xa0
Jan 16 22:44:08 serv kernel: [ 4.443096] [<ffffffff8146bb20>] ? driver_probe_device+0x310/0x310
Jan 16 22:44:08 serv kernel: [ 4.444154] [<ffffffff814699f4>] bus_for_each_dev+0x64/0xa0
Jan 16 22:44:08 serv kernel: [ 4.445180] [<ffffffff8146b2ae>] driver_attach+0x1e/0x20
Jan 16 22:44:08 serv kernel: [ 4.446174] [<ffffffff8146aed3>] bus_add_driver+0x1c3/0x240
Jan 16 22:44:08 serv kernel: [ 4.447140] [<ffffffffc0559000>] ? 0xffffffffc0559000
Jan 16 22:44:08 serv kernel: [ 4.448075] [<ffffffff8146c3e0>] driver_register+0x60/0xe0
Jan 16 22:44:08 serv kernel: [ 4.448998] [<ffffffff813e444d>] acpi_bus_register_driver+0x3b/0x43
Jan 16 22:44:08 serv kernel: [ 4.449908] [<ffffffffc055902a>] asus_laptop_init+0x2a/0x5d [asus_laptop]
Jan 16 22:44:08 serv kernel: [ 4.450804] [<ffffffff810003d5>] do_one_initcall+0x95/0x1d0
Jan 16 22:44:08 serv kernel: [ 4.451676] [<ffffffff8117bf20>] ? __vunmap+0x90/0xe0
Jan 16 22:44:08 serv kernel: [ 4.453359] [<ffffffff8118cf1f>] ? kmem_cache_alloc_trace+0x16f/0x1f0
Jan 16 22:44:08 serv kernel: [ 4.454207] [<ffffffff8118c75e>] ? kfree+0x11e/0x130
Jan 16 22:44:08 serv kernel: [ 4.455048] [<ffffffff8113dd66>] do_init_module+0x5f/0x1dd
Jan 16 22:44:08 serv kernel: [ 4.455883] [<ffffffff810e1f63>] load_module+0x1ea3/0x2270
Jan 16 22:44:08 serv kernel: [ 4.456708] [<ffffffff810de860>] ? __symbol_put+0x50/0x50
Jan 16 22:44:08 serv kernel: [ 4.457537] [<ffffffff810e250f>] SyS_finit_module+0x9f/0xb0
Jan 16 22:44:08 serv kernel: [ 4.458349] [<ffffffff816b4f5b>] entry_SYSCALL_64_fastpath+0x16/0x6e
Jan 16 22:44:08 serv kernel: [ 4.459153] Code: c0 e8 74 87 be c0 4c 89 f7 e8 0a 6c f4 ff e9 27 ff ff ff 0f 1f 44 00 00 0f 1f 44 00 00 55 48 89 e5 41 54 53 48 8b 87 90 00 00 00 <4c> 8b a0 20 0d 00 00 0f b6 80 95 0c 00 00 84 c0 74 1a 48 81 fe
Jan 16 22:44:08 serv kernel: [ 4.461789] RIP [<ffffffffc0555483>] asus_sysfs_is_visible+0x13/0x1d0 [asus_laptop]
Jan 16 22:44:08 serv kernel: [ 4.462660] RSP <ffff88014a3b3ad0>
Jan 16 22:44:08 serv kernel: [ 4.463514] CR2: 0000000000000d20
Jan 16 22:44:08 serv kernel: [ 4.464375] ---[ end trace a9bb450c67b460e0 ]---
My equipment is a laptop Asus K52Dr (it is about 5 years old).

I hope that someone will be able to help.

Thanks in advance.

Last edited by Didier Spaier; 01-19-2016 at 10:11 AM. Reason: Typo fix.
 
3 members found this post helpful.
Old 01-19-2016, 08:30 AM   #4
javigarri
LQ Newbie
 
Registered: Jan 2016
Posts: 14

Original Poster
Rep: Reputation: Disabled
My English is very bad. I will translated it with a translator.
Thanks
 
Old 01-19-2016, 08:40 AM   #5
orbea
Senior Member
 
Registered: Feb 2015
Distribution: Slackware64-current
Posts: 1,950

Rep: Reputation: Disabled
Quote:
Originally Posted by michaelk View Post
Welcome to LinuxQuestions.

Per the rules:
With all due respect, that is a stupid rule, people should speak in whatever language they are most comfortable explaining themselves properly. If you can't read spanish then you should either move on, find someone that can or use an online translator.
 
3 members found this post helpful.
Old 01-19-2016, 08:42 AM   #6
cwizardone
LQ Veteran
 
Registered: Feb 2007
Distribution: Slackware64-current with "True Multilib" and KDE4Town.
Posts: 9,131

Rep: Reputation: 7298Reputation: 7298Reputation: 7298Reputation: 7298Reputation: 7298Reputation: 7298Reputation: 7298Reputation: 7298Reputation: 7298Reputation: 7298Reputation: 7298
How many languages are there in the world?
 
Old 01-19-2016, 08:46 AM   #7
Altiris
Member
 
Registered: Mar 2013
Posts: 556

Rep: Reputation: Disabled
Quote:
Originally Posted by orbea View Post
With all due respect, that is a stupid rule, people should speak in whatever language they are most comfortable explaining themselves properly. If you can't read spanish then you should either move on, find someone that can or use an online translator.
Yeah its really bigotted. We have translator websites where you can copy/paste text to translate and I was able to read and understand that without having any Spanish background.

All posts are valuable, I definitely want to see this user get his problem fixed for the good of the next Slackware release. It would be stupid for him not to post his problem because he can't speak English.

Last edited by Altiris; 01-19-2016 at 08:47 AM.
 
1 members found this post helpful.
Old 01-19-2016, 08:52 AM   #8
solarfields
Senior Member
 
Registered: Feb 2006
Location: slackalaxy.com
Distribution: Slackware, CRUX
Posts: 1,449

Rep: Reputation: 997Reputation: 997Reputation: 997Reputation: 997Reputation: 997Reputation: 997Reputation: 997Reputation: 997
heh... LQ does not even show text typed in Cyrillic...
 
Old 01-19-2016, 01:56 PM   #9
philanc
Member
 
Registered: Jan 2011
Posts: 308

Rep: Reputation: 273Reputation: 273Reputation: 273
Quote:
Originally Posted by Altiris View Post
Yeah its really bigotted. We have translator websites where you can copy/paste text to translate and I was able to read and understand that without having any Spanish background.

All posts are valuable, I definitely want to see this user get his problem fixed for the good of the next Slackware release. It would be stupid for him not to post his problem because he can't speak English.
Scenario A: OP posts his question in his native language. A few helpful and motivated members have to copy-paste the text in Google translate. Most ignore the post. Moderators cannot moderate (or have to also run the text thru Google translate).

Scenario B: OP run his question thru Google translate. Every member can read it. Moderators can moderate.

With all due respect, I like the stupid rule
 
5 members found this post helpful.
Old 01-19-2016, 02:49 PM   #10
TobiSGD
Moderator
 
Registered: Dec 2009
Location: Germany
Distribution: Whatever fits the task best
Posts: 17,148
Blog Entries: 2

Rep: Reputation: 4886Reputation: 4886Reputation: 4886Reputation: 4886Reputation: 4886Reputation: 4886Reputation: 4886Reputation: 4886Reputation: 4886Reputation: 4886Reputation: 4886
Can we get this thread back on topic, please? If you have questions or suggestions about LQ Rules please open a thread in the Suggestions & Feedback sub-forum.
 
Old 01-19-2016, 03:30 PM   #11
dlee99
LQ Newbie
 
Registered: Mar 2006
Location: Berkel en Rodenrijs
Distribution: Slackware64-current
Posts: 21

Rep: Reputation: 2
Hi,

I have an ASUS G51 laptop and had the same issue
I rebuilt the kernel with applied patch referred to in this link:

https://bbs.archlinux.org/viewtopic.php?id=207658

Now all is well...
 
1 members found this post helpful.
Old 01-21-2016, 12:58 PM   #12
javigarri
LQ Newbie
 
Registered: Jan 2016
Posts: 14

Original Poster
Rep: Reputation: Disabled
Hi all,

Thak you very much for the assistance, specially Didier Spaier for the translation and dlee99 for the link.

Now it works properly, but I'm still testing. It seems to work well.

I hope in the next version of the Linux Kernel is resolved.


Best regards
 
  


Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
Patching running kernel 3.17.2 with Con Kolivas Pinonoir Linux - Kernel 1 11-30-2014 03:16 AM
Problemas starting XMMS - Slack 10.2 / kernel 2.4.31 / Fluxbox Thakowbbery Slackware 3 08-18-2006 10:06 AM
Con Kolivas kernel Greebstreebling Debian 1 12-28-2005 08:18 AM
Problemas con la instalacion rehhat 9.0 fuentes Red Hat 2 09-05-2004 04:13 PM
New Con Kolivas 2.4.21-rc7 kernel patch wrc1944 LinuxQuestions.org Member Success Stories 1 06-18-2003 09:39 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Distributions > Slackware

All times are GMT -5. The time now is 10:42 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration