[Bug 220341] Bluetooth crashes about 30-40 minutes after I connect my headphones: "Bluetooth: hci0: Hardware error 0x0a"

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=220341

--- Comment #6 from Nicolas BARANGER (nicolas.baranger@3xo.fr) ---
Hi all

Unfortunatly I don't have this laptop anymore (dell xps 15 9530), but from my
remember of last summer issue, rmmod -f followed by insmod don't work as rmmod
-f was not able to remove the module from the kernel.

The only way I found to recover the situation was to forcely reboot the system
.

Also, don't know if it's related but I remmember that I had no issues during
the last 2 weeks I used this laptop (corporate laptop) and that was just after
removing pcie gen5x2 nvme m2 drive end replacing it by a mdadm done with 2 pcie
gen4x4 nvme drive.
Also note that the issue always happens when I was using an Aquantia AQC100S
10gb nic plugged on thunderbolt bus and maybe when cpu total load was higher to
30% on pcie bus
My feeling was an hardware issue at I/O or DMA that kernel don't handle
properly 

NB: I was using grub and not systemd-boot

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