[SOLVED] Slackware64-Current 6.x.x Kernel Issues

tux_dude · 11-10-2023, 12:59 PM

This is a list of issues encountered with the 6.1.xx kernel (and now the generic "huge" kernel) in Slackware64-Current.

Kernel 6.x.x:

Fail to assemble mdadm raid on LSI MegaRAID SAS 2008 controller with initrd. I cannot recall exactly when this started, but I first reported the issue here.
Lenovo T460 touch screen does not work.

Kernel 6.1.6x (generic "huge" kernel):

Fail to boot encrypted ext4 root partition with initrd. 6.1.61 worked. 6.1.60 and 6.1.62 do not. All kernels prior to 6.1.60 boot successfully.

henca · 11-11-2023, 04:18 AM

Quote:

Originally Posted by tux_dude

Fail to assemble mdadm raid on LSI MegaRAID SAS 2008 controller with initrd.

Isnt that MegaRaid card a hardware RAID controller which presents all disks connected as a single disk like /dev/sda to the kernel? If so, why would you want to use mdadm to create a RAID? Did you configure the controller to only JBOD?

regards Henrik

z80 · 11-11-2023, 05:19 AM

Quote:

Originally Posted by tux_dude

Kernel 6.1.6x (generic "huge" kernel):

Fail to boot encrypted ext4 root partition with initrd. 6.1.61 worked. 6.1.60 and 6.1.62 do not. All kernels prior to 6.1.60 boot successfully.

Works here without any issues. Kernel 6.1.62 generic with initrd and luksenrypted root.

tux_dude · 11-11-2023, 08:30 AM

Quote:

Originally Posted by henca

Isnt that MegaRaid card a hardware RAID controller which presents all disks connected as a single disk like /dev/sda to the kernel? If so, why would you want to use mdadm to create a RAID? Did you configure the controller to only JBOD?

regards Henrik

The controller is configured as JBOD, with all disk presented to the OS under /dev/sdX. mdadm is used to assemble the RAID. Makes it easier to do RAID migration when needed and or swap the controller when they fail. No need to be running around looking for specific controller from specific manufacturer.

tux_dude · 11-11-2023, 08:42 AM

Quote:

Originally Posted by z80

Works here without any issues. Kernel 6.1.62 generic with initrd and luksenrypted root.

@z80
What's your mkinitrd command (or config)? I did not make any changes between the old generic kernel and the larger one.

Code:

mkinitrd -c -k "$KERNER_VER" -m ext4 -f ext4 -r lukssda2 -L -C /dev/sda2

What's disk usage for the new kernel under /boot? Mine was around 85M.

Also using lilo boot loader:

Code:

boot = /dev/sda
vga = 791
image = /boot/vmlinuz
  initrd = /boot/initrd.gz
  label = Slackware64

z80 · 11-11-2023, 12:44 PM

1 GB /boot and 1 GB /boot/efi

Bootloader is grub (elilo can't handle this system)

mkinitrd

Code:

mkinitrd -c -k $KVER -f ext4 -r $ROOTDEV -m usb-storage:xhci-hcd:i2c-hid:usbhid:hid-generic:ehci-hcd:jbd2:mbcache:crc32c_intel:crc32c_generic:ext4 -l de -u -o $INITRD

babydr · 11-11-2023, 05:56 PM

@tux_dude , I use the -R option to mkinitrd like this , Sorry for the size . Hth , JimL

Code:

mkinitrd -c -R -k ${VER} -f ext4 \
  -r ${UUID} \
  -m \
megaraid_sas:\
mpt3sas:\
usb-storage:\
xhci-pci:\
ohci-pci:\
ehci-pci:\
xhci-hcd:\
uhci-hcd:\
ehci-hcd:\
hid:\
usbhid:\
i2c-hid:\
hid_generic:\
hid-asus:\
hid-cherry:\
hid-logitech:\
hid-logitech-dj:\
hid-logitech-hidpp:\
hid-lenovo:\
hid-microsoft:\
hid_multitouch:\
jbd2:\
mbcache:\
crc32c_intel:\
crc32c_generic:\
ext4 \
  -u \
  -o /boot/initrd-${VER}-${DATE}.gz

tux_dude · 12-06-2023, 01:03 PM

Quote:

Originally Posted by tux_dude

Kernel 6.1.6x (generic "huge" kernel):

Fail to boot encrypted ext4 root partition with initrd. 6.1.61 worked. 6.1.60 and 6.1.62 do not. All kernels prior to 6.1.60 boot successfully.

This issue was completely user error. It was due to limited space on the boot volume. mkinitrd needs better error checking to fail when disk write fail (out of space).

tux_dude · 05-15-2024, 03:59 PM

Quote:

Originally Posted by tux_dude

This is a list of issues encountered with the 6.1.xx kernel (and now the generic "huge" kernel) in Slackware64-Current.

Kernel 6.x.x:

Fail to assemble mdadm raid on LSI MegaRAID SAS 2008 controller with initrd. I cannot recall exactly when this started, but I first reported the issue here.
Lenovo T460 touch screen does not work.

[/LIST]

This turned out to be a disk spin-up timing issue. Adding the wait flag (-w) to mkinitrd fixed the issue.