Add Linux 5.15.86-442

[donald]

This kernel contains a patch, so that /proc/mounts and
/proc/self/mountinfo format the nfs mariux security flavor as
"sec=mariux" instead of "sec=unknown" 1

This kernel contains a patch to re-enable TASK_DELAY_ACCT 2. The
missing TASK_DELAY_ACCT is one reason, our old pyhton-based iotop
stopped to work, and the new c-based iotop doesn't work in all modes.
There is another reason, however, which is not yet understood. 3

[donald]

Tested on theinternet

[pmenzel]

Tested on machdoch.

[pmenzel]

If you have time, please also disable FB_MATROX (matroxfb) as mgag200 is going to be used.

1. https://lore.kernel.org/linux-fbdev/972999d3-b75d-5680-fcef-6e6905c52ac5@suse.de/T/#t
2. https://lore.kernel.org/linux-fbdev/17a2982e-f4e8-f8bd-db8f-dd14bf27b4e7@gmx.de/T/#t

[donald]

I'll switch FB_MATROX from "m" to "n", but the module could as well be blacklisted via modprobe.d.

[donald]

buczek@theinternet:~/git/bee-files (add-linux-5.15.86-441)$ BEE_MAKEFLAGS="-j $(nproc)" unshare -r ./nvidia_linux-5.15.86-442-510.60.02-0.bee -c
[...]
make[1]: Entering directory '/scratch/local/linux-5.15.86-442.x86_64/source'
warning: the compiler differs from the one used to build the kernel
  The kernel was built by: gcc (GCC) 10.4.0
  You are using:           cc (GCC) 10.4.0

:-)

[donald]

@pmenzel: -442 is ready, but I can't test nvidia remotely.

[pmenzel]

Tested on machdoch:

$ lsmod | grep coretemp
coretemp               16384  0

Tested on theinternet. After turning on the monitor, lightdm on tty7 was just black. Switch to tty1 worked, and restarting lightdm got it running, and logging in to Xfce also worked.