On 06.02.2018 20:07, Jose Marino wrote:
I'm running archlinux on a Dell XPS15 9550 and I connect it to a TB16 thunderbolt dock. Connected to the dock I have a 4k external display and a USB logitech transmitter for my wireless keyboard and mouse. The module 'xhci_pci' is automatically unloaded/reloaded on suspend/resume to make the TB16 dock work properly across suspend/resume cycles. Yesterday, I updated my kernel from 4.14.16 to 4.15.1 and now I get a kernel oops on suspend. I can replicate the oops every time: boot computer, connect to thunderbolt dock, suspend. I managed to get some logs of the kernel oops from EFI pstore. Find attached with this email. Jose
Zhengjun just wrote a patchseries for fixing 4.15 xhci debugfs issues I added debugfs-fixes branch with those patches on top of 4.15. Do they work for you? git://git.kernel.org/pub/scm/linux/kernel/git/mnyman/xhci.git debugfs-fixes https://git.kernel.org/pub/scm/linux/kernel/git/mnyman/xhci.git/log/?h=debugfs-fixes I still need to run those patches through some internal testing before pushing them out, but I'm interested in knowing if they solve your NULL pointer dereference Thanks -Mathias -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
