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Bug#1019926: marked as done (Fwd: Kernel incompatible with Intel Atom Processor (Coprocessor) driver C3758 / C3xxx)



Your message dated Thu, 20 Feb 2025 15:06:32 +0100 (CET)
with message-id <20250220140632.25DBABE2EE7@eldamar.lan>
and subject line Closing this bug (BTS maintenance for src:linux bugs)
has caused the Debian Bug report #1019926,
regarding Fwd: Kernel incompatible with Intel Atom Processor (Coprocessor) driver C3758 / C3xxx
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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-- 
1019926: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1019926
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message ---
Package:  linux-image-5.10.0-18-amd64
Version: 5.10.0-18-amd64

Problem: The system cannot reboot anymore because the kernel has a problem unloading the coprocessor driver. Intel Atom Processor (Coprocessor) driver C3758 / C3xxx

Reproducible: yes (fresh Debian debian-11.5.0-amd64-DVD-1.iso installation)
My motherboard is a MBN802 (you can search the specs with your favourite search engine if you like).

After first installation i get:
[    6.891481] c3xxx 0000:01:00.0: Failed to load MMP firmware qat_c3xxx_mmp.bin
[    6.898666] c3xxx 0000:01:00.0: Failed to load acceleration FW

To install this drivers i have to install them with:
cd /lib/firmware
wget https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/qat_c3xxx.bin
wget https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/qat_c3xxx_mmp.bin

After rebooting i can see them with:

modprobe -D qat_c3xxx
insmod /lib/modules/5.10.0-18-amd64/kernel/crypto/authenc.ko
insmod /lib/modules/5.10.0-18-amd64/kernel/drivers/crypto/qat/qat_common/intel_qat.ko
insmod /lib/modules/5.10.0-18-amd64/kernel/drivers/crypto/qat/qat_c3xxx/qat_c3xxx.ko

If i unload it manually i get "kernel tainted" and the system crashes:

modprobe --remove-dependencies -f qat_c3xxx
[  343.834657] qat_c3xxx: module_layout: kernel tainted.

My temporary solution is: Switch to Liquorix kernel. With kernel 5.19.0-9.1-liquorix-amd64 the drivers are running fine.
See howto at: https://www.linuxcapable.com/how-to-install-liquorix-linux-kernel-on-debian-11-bullseye/

Maybe you can fix this bug in future versions and compare the difference between the Liquorix and actual Debian kernel.

Thanks. Christian

--- End Message ---
--- Begin Message ---
Hi

This bug was filed for a very old kernel or the bug is old itself
without resolution.

If you can reproduce it with

- the current version in unstable/testing
- the latest kernel from backports

please reopen the bug, see https://www.debian.org/Bugs/server-control
for details.

Regards,
Salvatore

--- End Message ---

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