The Latest Kernel Release.

marav · 11-04-2021, 12:44 PM

Quote:

Originally Posted by z80

For those using the RTL8821CE chip: beware that Kernel 5.15 breaks a few things and the module from tomaspinho doesn't work anymore.

Back to Kernel 5.14 for now.

https://github.com/tomaspinho/rtl8821ce/issues/244

z80 · 11-04-2021, 02:51 PM

I saw that issue report.
Sadly there's no solution so far.

LuckyCyborg · 11-04-2021, 03:20 PM

Quote:

Originally Posted by z80

I saw that issue report.
Sadly there's no solution so far.

Unfortunately, this is the fate of the out-of-tree drivers.

They may go out of sync with the kernel, as you seen.

MLanden · 11-04-2021, 06:04 PM

Also with my noname Linksys WiFi seen as BroadcoM BCM43245 that uses brcmfmac.. The newer kernel makes the brcmfmac module tainted and dirty! Rolled back to 5.14.15 as well! ;_;

USUARIONUEVO · 11-04-2021, 08:35 PM

when 5.14 arrives some drivers go break , but some weeks later be patched.

same now on 5.15 , i build 5 extra drivers , and 2 fails with same error for header changed directory

rtl8188eus
rtl88XXau (8812au)

5.15 is LTS , then probably patched soon this drivers from mantainers.

If you need a specific driver to work , on daily then revert temporally to 5.14 and wait patches to 5.15

z80 · 11-05-2021, 01:27 AM

Quote:

Originally Posted by LuckyCyborg

Unfortunately, this is the fate of the out-of-tree drivers.

They may go out of sync with the kernel, as you seen.

I'm aware of that. However in 5.14 the builtin rtw88_8821ce module worked and in 5.15 it doesn't.
That's my main issue with 5.15 and that's the reasen why I tried the out-of-tree module.

teoberi · 11-05-2021, 03:19 AM

Quote:

Originally Posted by Daedra

Same here, just installed the testing kernel and confirmed.

My grub command line...

Code:

GRUB_CMDLINE_LINUX_DEFAULT="acpi_enforce_resources=lax mitigations=off fbcon=font:VGA8x16 preempt=full"

Code:

root@shodan:~# dmesg | grep Preempt
[    0.033249] Dynamic Preempt: full
[    0.077741] rcu: Preemptible hierarchical RCU implementation.

Code:

root@shodan:~# cat /sys/kernel/debug/sched/preempt 
none voluntary (full)

Big thanks to Pat for adding this! I really didn't think we would get this until after 15.0

I saw in @avian's post (#3856) that in the case of LILO you can set the preempt parameter as a global option for all boot images or just for a specific boot image.
In the case of GRUB if I add in GRUB_CMDLINE_LINUX_DEFAULT the parameter preempt and run grub-mkconfig will be added in all generated menu entries, ie vmlinuz and vmlinuz-generic.
I prefer the vmlinuz menu entry to be clean without microcode, initrd and preempt.
So I commented on the lines for initrd, should I delete the preempt parameter in this case as well?

Daedra · 11-05-2021, 08:45 AM

Quote:

Originally Posted by teoberi

I saw in @avian's post (#3856) that in the case of LILO you can set the preempt parameter as a global option for all boot images or just for a specific boot image.
In the case of GRUB if I add in GRUB_CMDLINE_LINUX_DEFAULT the parameter preempt and run grub-mkconfig will be added in all generated menu entries, ie vmlinuz and vmlinuz-generic.
I prefer the vmlinuz menu entry to be clean without microcode, initrd and preempt.
So I commented on the lines for initrd, should I delete the preempt parameter in this case as well?

The only way I know in Grub to have custom entries is to add them to the /etc/grub.d/40_custom file. So after you run "grub-mkconfig -o /boot/grub/grub.cfg" you can view the config file at /boot/grub/grub.cfg. There you can see your menu entries. Then you can copy the entry you want into /etc/grub.d/40_custom and edit the title and linux line to add or remove any kernel boot parameters you want. Then re-run "grub-mkconfig -o /boot/grub/grub.cfg" and on next reboot you should see your custom entry. See my screenshot for example

LuckyCyborg · 11-06-2021, 04:33 AM

Quote:

Originally Posted by USUARIONUEVO

when 5.14 arrives some drivers go break , but some weeks later be patched.

same now on 5.15 , i build 5 extra drivers , and 2 fails with same error for header changed directory

rtl8188eus
rtl88XXau (8812au)

5.15 is LTS , then probably patched soon this drivers from mantainers.

If you need a specific driver to work , on daily then revert temporally to 5.14 and wait patches to 5.15

BUT, it's not supposed the RTL8188EUS to be supported by the brand new r8188eu driver from the 5.15.x kernels?

The previous rtl8188eu driver (from upto 5.14.x kernels) was replaced by r8188eu on the kernel 5.15.x and it contains the latest code from https://github.com/lwfinger/rtl8188eu

See there more details:
https://www.phoronix.com/scan.php?pa...x-5.15-Staging

And it's supposed that RTL8188EUS is supported by this driver, according with the code bellow.

/drivers/staging/r8188eu/os_dep/usb_intf.c

Code:

/* DID_USB_v916_20130116 */                                    
static struct usb_device_id rtw_usb_id_tbl[] = {               
        /*=== Realtek demoboard ===*/
        {USB_DEVICE(USB_VENDER_ID_REALTEK, 0x8179)}, /* 8188EUS */
        {USB_DEVICE(USB_VENDER_ID_REALTEK, 0x0179)}, /* 8188ETV */
        {USB_DEVICE(USB_VENDER_ID_REALTEK, 0xf179)}, /* 8188FU */
        /*=== Customer ID ===*/
        /****** 8188EUS ********/
        {USB_DEVICE(0x07B8, 0x8179)}, /* Abocom - Abocom */
        {USB_DEVICE(0x0DF6, 0x0076)}, /* Sitecom N150 v2 */
        {USB_DEVICE(0x2001, 0x330F)}, /* DLink DWA-125 REV D1 */
        {USB_DEVICE(0x2001, 0x3310)}, /* Dlink DWA-123 REV D1 */
        {USB_DEVICE(0x2001, 0x3311)}, /* DLink GO-USB-N150 REV B1 */
        {USB_DEVICE(0x2001, 0x331B)}, /* D-Link DWA-121 rev B1 */
        {USB_DEVICE(0x056E, 0x4008)}, /* Elecom WDC-150SU2M */
        {USB_DEVICE(0x2357, 0x010c)}, /* TP-Link TL-WN722N v2 */
        {USB_DEVICE(0x2357, 0x0111)}, /* TP-Link TL-WN727N v5.21 */
        {USB_DEVICE(0x2C4E, 0x0102)}, /* MERCUSYS MW150US v2 */
        {USB_DEVICE(0x0B05, 0x18F0)}, /* ASUS USB-N10 Nano B1 */
        {USB_DEVICE(0x7392, 0xb811)}, /* Edimax EW-7811Un V2 */
        {}      /* Terminating entry */
};

J_W · 11-06-2021, 04:37 AM

Quote:

Originally Posted by z80

I'm aware of that. However in 5.14 the builtin rtw88_8821ce module worked and in 5.15 it doesn't.
That's my main issue with 5.15 and that's the reason why I tried the out-of-tree module.

Hi, z80

This is not a direct solution for your issue, but just an information.
I'm using USB-WiFi adapter "TP-Link AC600 T2U nano" which use outside driver "88xxau.ko".
https://github.com/aircrack-ng/rtl8812au

In case of this driver, there is a commit for compilation on kernel-5.15.0.
https://github.com/aircrack-ng/rtl88...fe9ec5b49db00a
https://github.com/aircrack-ng/rtl8812au/blob/6fd304f910b5ced30e99bb2beefe9ec5b49db00a/core/rtw_br_ext.c

This commit source was able to be compiled on kernel-5.15.0.

I compiled rtl8821ce with the same code of rtw_br_ext.c as rtl8812au, then successfully compiled on kernel-5.15.0.
However, since I don't have a hardware of rtl8821ce, I can't confirm whether it works or not.

example diff

Code:

--- rtl8821ce.orig/core/rtw_br_ext.c	2021-11-06 17:54:25.857653053 +0900
+++ rtl8821ce.new/core/rtw_br_ext.c	2021-11-06 17:55:29.878645361 +0900
@@ -17,7 +17,10 @@
 #ifdef __KERNEL__
 	#include <linux/if_arp.h>
 	#include <net/ip.h>
+	#include <linux/version.h>
+#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 15, 0)
 	#include <net/ipx.h>
+#endif
 	#include <linux/atalk.h>
 	#include <linux/udp.h>
 	#include <linux/if_pppox.h>
@@ -169,6 +172,7 @@
 }
 
 
+#ifdef _NET_INET_IPX_H_
 static __inline__ void __nat25_generate_ipx_network_addr_with_node(unsigned char *networkAddr,
 		unsigned int *ipxNetAddr, unsigned char *ipxNodeAddr)
 {
@@ -189,6 +193,7 @@
 	memcpy(networkAddr + 1, (unsigned char *)ipxNetAddr, 4);
 	memcpy(networkAddr + 5, (unsigned char *)ipxSocketAddr, 2);
 }
+#endif
 
 
 static __inline__ void __nat25_generate_apple_network_addr(unsigned char *networkAddr,
@@ -330,6 +335,7 @@
 		x = networkAddr[7] ^ networkAddr[8] ^ networkAddr[9] ^ networkAddr[10];
 
 		return x & (NAT25_HASH_SIZE - 1);
+#ifdef _NET_INET_IPX_H_
 	} else if (networkAddr[0] == NAT25_IPX) {
 		unsigned long x;
 
@@ -337,6 +343,7 @@
 		    networkAddr[6] ^ networkAddr[7] ^ networkAddr[8] ^ networkAddr[9] ^ networkAddr[10];
 
 		return x & (NAT25_HASH_SIZE - 1);
+#endif
 	} else if (networkAddr[0] == NAT25_APPLE) {
 		unsigned long x;
 
@@ -889,6 +896,7 @@
 		}
 	}
 
+#ifdef _NET_INET_IPX_H_
 	/*---------------------------------------------------*/
 	/*         Handle IPX and Apple Talk frame          */
 	/*---------------------------------------------------*/
@@ -1109,6 +1117,7 @@
 
 		return -1;
 	}
+#endif
 
 	/*---------------------------------------------------*/
 	/*                Handle PPPoE frame                */

cwizardone · 11-06-2021, 08:07 AM

Kernel updates 5.15.1, 5.14.17, 5.10.78, 5.4.158 and 4.19.216 are now available at, https://www.kernel.org/

The change logs,

https://cdn.kernel.org/pub/linux/ker...angeLog-5.15.1

https://cdn.kernel.org/pub/linux/ker...ngeLog-5.14.17

https://cdn.kernel.org/pub/linux/ker...ngeLog-5.10.78

https://cdn.kernel.org/pub/linux/ker...ngeLog-5.4.158

https://cdn.kernel.org/pub/linux/ker...geLog-4.19.216

AlleyTrotter · 11-06-2021, 10:22 AM

Quote:

Originally Posted by cwizardone

Kernel updates 5.15.1, 5.14.17, 5.10.78, 5.4.158 and 4.19.216 are now available at, https://www.kernel.org/
The change logs,
https://cdn.kernel.org/pub/linux/ker...angeLog-5.15.1
...[/url]

Kernel 5.15.1 builds using config from PV for 5.15 and runs without issue on Slackware64-14.2.
HTH
john

marav · 11-06-2021, 11:16 AM

Quote:

Originally Posted by AlleyTrotter

Kernel 5.15.1 builds using config from PV for 5.15 and runs without issue on Slackware64-14.2.
HTH
john

running fine here as well

z80 · 11-06-2021, 02:31 PM

Hi J_W,

Quote:

Originally Posted by J_W

Hi, z80

This is not a direct solution for your issue, but just an information.
I'm using USB-WiFi adapter "TP-Link AC600 T2U nano" which use outside driver "88xxau.ko".
https://github.com/aircrack-ng/rtl8812au

In case of this driver, there is a commit for compilation on kernel-5.15.0.
https://github.com/aircrack-ng/rtl88...fe9ec5b49db00a
https://github.com/aircrack-ng/rtl8812au/blob/6fd304f910b5ced30e99bb2beefe9ec5b49db00a/core/rtw_br_ext.c

This commit source was able to be compiled on kernel-5.15.0.

I compiled rtl8821ce with the same code of rtw_br_ext.c as rtl8812au, then successfully compiled on kernel-5.15.0.
However, since I don't have a hardware of rtl8821ce, I can't confirm whether it works or not.

awesome, that worked! Thanks alot!

Spidergawd · 11-07-2021, 06:07 AM

Pat's config for 5.15.1 once again has CONFIG_PREEMPT_DYNAMIC=y

Code:

# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_COUNT=y
CONFIG_PREEMPTION=y
CONFIG_PREEMPT_DYNAMIC=y
CONFIG_SCHED_CORE=y