[Slackware64-current] newest kernel with better amdgpu support.

drigohighlander · 02-23-2018, 09:46 AM

Hi,
Everyone heard about kernel 4.15 and how AMD improved the support of amdgpu cards.
There is any chance to have it on slackware 15?
Even as testing packages?

orbea · 02-23-2018, 09:55 AM

Possibly not relevant for amd users, but when I tried 4.15.4 here mplayer started to consistently crash my entire system when exiting (Couldn't even ssh in). Dmesg reports this, but I understand I should rebuild the kernel with KASN and retry.

Code:

[  142.847294] general protection fault: 0000 [#1] PREEMPT SMP NOPTI
[  142.847320] Modules linked in: lzo zram zsmalloc cpufreq_ondemand 8021q garp stp llc fuse hid_sony nouveau joydev hid_microsoft kvm_amd snd_hda_codec_realtek kvm snd_hda_codec_hdmi snd_hda_codec_generic video ttm drm_kms_helper drm snd_hda_intel agpgart snd_hda_codec irqbypass mxm_wmi fb_sys_fops syscopyarea sysfillrect crct10dif_pclmul crc32_pclmul evdev snd_hwdep crc32c_intel ghash_clmulni_intel sysimgblt snd_hda_core k10temp fam15h_power i2c_algo_bit wmi hwmon snd_pcm r8168(O) snd_timer snd acpi_cpufreq button soundcore processor loop
[  142.847458] CPU: 0 PID: 42 Comm: kworker/0:1 Tainted: G           O     4.15.4 #1
[  142.847474] Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./990FXA-UD5 R5, BIOS F3 04/01/2015
[  142.847510] RIP: 0010:__list_del_entry_valid+0x25/0x90
[  142.847523] RSP: 0018:ffffaf8740187ea0 EFLAGS: 00010883
[  142.847537] RAX: 6b6b6b6b6b6b6b6b RBX: ffffa002cdf852a0 RCX: dead000000000200
[  142.847552] RDX: 6b6b6b6b6b6b6b6b RSI: ffffa002e5b68d78 RDI: ffffa002cdf852a0
[  142.847568] RBP: ffffa002cdf85298 R08: ffffa002eec21138 R09: 0000000000000000
[  142.847583] R10: 0000000000000000 R11: 00000000000002b5 R12: 6b6b6b6b6b6b6b63
[  142.847598] R13: ffffa002e5b68d78 R14: ffffa002e5b68d48 R15: 0000000000000000
[  142.847615] FS:  0000000000000000(0000) GS:ffffa002eec00000(0000) knlGS:0000000000000000
[  142.847632] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  142.847645] CR2: 00000000000000b0 CR3: 0000000204954000 CR4: 00000000000406f0
[  142.847660] Call Trace:
[  142.847674]  move_linked_works+0x49/0xa0
[  142.847691]  worker_thread+0x1a5/0x3b0
[  142.847704]  ? process_one_work+0x400/0x400
[  142.847718]  kthread+0x113/0x130
[  142.847732]  ? kthread_create_worker_on_cpu+0x70/0x70
[  142.847747]  ret_from_fork+0x22/0x40
[  142.847760] Code: 84 00 00 00 00 00 48 8b 07 48 b9 00 01 00 00 00 00 ad de 48 8b 57 08 48 39 c8 74 26 48 b9 00 02 00 00 00 00 ad de 48 39 ca 74 2b <48> 8b 32 48 39 fe 75 34 48 8b 50 08 48 39 f2 75 3f b8 01 00 00 
[  142.847862] RIP: __list_del_entry_valid+0x25/0x90 RSP: ffffaf8740187ea0
[  142.849768] ---[ end trace f8fa8a89f86c8cc7 ]---

cwizardone · 02-23-2018, 10:41 AM

I've not had any problems with MPlayer, either directly or using the SMPlayer front end, with any of the 4.15.x kernels download from DUSK (aka, Board Member 55020).

https://dusk.idlemoor.tk/

At the moment the 4.15.5 kernel is installed

orbea · 02-23-2018, 10:54 AM

I suspect nouveau, but that is not currently clear yet. I just thought it was worth mentioning as its possible other people could be affected.

Chuck56 · 02-23-2018, 11:13 AM

Quote:

Originally Posted by drigohighlander

Hi,
Everyone heard about kernel 4.15 and how AMD improved the support of amdgpu cards.
There is any chance to have it on slackware 15?
Even as testing packages?

Slackware releases usually follow longterm status kernels. Kernel 4.14 is longterm, 4.15 is not longterm. Not sure the core team would gain much benefit with kernel 4.15 in testing. That doesn't stop Slackware users from compiling their own kernels.

cwizardone · 02-23-2018, 11:36 AM

Quote:

Originally Posted by Chuck56

Slackware releases usually follow longterm status kernels. Kernel 4.14 is longterm, 4.15 is not longterm. Not sure the core team would gain much benefit with kernel 4.15 in testing. That doesn't stop Slackware users from compiling their own kernels.

IMHO

the gentleman with the hyphenated surname should make the 4.15.x series a long term service kernel and drop 4.14.
The 4.15.x series provides better support for AMD Ryzen CPUs, released a year ago, and some of the newer Intel CPUs.
Again, just my two cents worth.

Chuck56 · 02-23-2018, 12:01 PM

Quote:

Originally Posted by cwizardone

IMHO

the gentleman with the hyphenated surname should make the 4.15.x series a long term service kernel and drop 4.14.
The 4.15.x series provides better support for AMD Ryzen CPUs, released a year ago, and some of the newer Intel CPUs.
Again, just my two cents worth.

I agree, 4.15 seems to be a better longterm candidate than 4.14. The longterm kernel designation is critical to longterm support for Slackware or any other distribution.

cwizardone · 02-23-2018, 12:17 PM

Quote:

Originally Posted by Chuck56

I agree, 4.15 seems to be a better longterm candidate than 4.14. The longterm kernel designation is critical to longterm support for Slackware or any other distribution.

In my travels around the 'Net earlier this morning I came across a news story about Ubuntu switching to the 4.15 kernel for their 18.04 LTS release.....
Here is the story, https://www.phoronix.com/scan.php?pa...s-Ubuntu-18.04

I'm not a Ubuntu fan, but it seems like a wise decision.

OTOH, if the next release of Slackware is still many months away, it doesn't really matter as the 4.16 or 4.17 or whatever LTS will be out by then.

bassmadrigal · 02-23-2018, 07:43 PM

I'm hoping that if Pat does stick with the 4.14 kernel (which I would totally understand since it is an LTS kernel) that he'll put out a config for the latest stable kernel in testing/. But, as Chuck56 mentioned, you're free to run your own kernel, which I have done on my main desktop for years.

drigohighlander · 02-24-2018, 06:32 AM

I never know how to build kernel as Pat does, with all the packages, headers, source and so on...

cwizardone · 02-24-2018, 08:25 AM

Quote:

Originally Posted by drigohighlander

I never know how to build kernel as Pat does, with all the packages, headers, source and so on...

As mentioned in post #3, above, I've had great success using the "Dave's Unofficial Slackware Kernels," aka, "DUSK," provided by Board Member 55020.

https://dusk.idlemoor.tk/

orbea · 02-24-2018, 10:03 AM

Quote:

Originally Posted by drigohighlander

I never know how to build kernel as Pat does, with all the packages, headers, source and so on...

Its really easy. You can skip the headers and just use Pat's as well.

https://docs.slackware.com/howtos:sl...kernelbuilding