Hello, I'm not sure if this is the right place - if not, I'm sorry! It is the first time I'm trying to join a linux mailing list so I may have missed something or I may have done something incorrectly. I'm not even sure if this is the right way to send a message, but I have to start somewhere :) I'm trying to hunt down few issues with my new-ish HP ZBook not wanting to go to deeper C-stsates, which is kind of painful for a laptop (battery drain is ~5-10%/hour). For this I created a little python script that gathers all the info about all the components from the system and periodically reports the status (every 3s or so) including PCI and USB devices. To gather some information (specifically about ASPM) I'm reading /config file for each PCI device in /sys device tree and parsing it. I'm not reading only /config but it is a prime suspect, because I excluded WLAN card from this reading routine and the crash took much longer to occur - hours instead of minutes. When I run this script, the IWL subsystem crashes after some time (minutes to hours). There is clearly something going on the PCI bus that I don't really understand. Since the error I get from IWL is changing, I suspect there is some kind of race condition that is triggered by my script. I opened a bug [1] and after some back and forth with Emmanuel Grumbach, he said that this kind of error is caused by IWL not being able to talk to the WLAN device (at all) and to try to get your opinion on the matter :) I have tried two different kernel versions (6.11.5 and 6.10.10), two different WLAN cards (BE200NGW and AX211NGW) and multiple versions of firmware for the cards. The error is still present, so I would say I'd need to dig deeper, but I'm not really familiar with PCI subsystem and how to debug it efficiently given the amount of data going through. What can I do to debug this issue further? Thanks Jan 1 - https://bugzilla.kernel.org/show_bug.cgi?id=219457
