Created attachment 2619 [details] dmesg log during suspend/resume If you suspend then resume (echo mem > /sys/power/state to suspend, then press the power button to resume) while a wifi card is in a Silverjaw lure's mPCI-E slot, the Linux kernel throws error messages, the WLAN LED on the Silverjaw turns off, and wifi quits working properly. If the Minnowboard is rebooted in this state the wifi card will no longer be detected and it loses all functionality. In order to resume wifi the Minnowboard must poweroff completely and powered back on.
The "Failed to load firmware chunk!" message that happens indicated a firmware problem to me, but doing a bit of research it looks like this refers to the wifi card's firmware. The wifi card I am using is an Intel AC 7260. Here is what my system wants and has for this card. [root@localhost ~]# modinfo iwlwifi | grep firmware ... firmware: iwlwifi-7260-10.ucode ... [root@localhost ~]# ls -la /lib/firmware/ | grep iwlwifi ... -rw-r--r--. 1 root root 672352 Apr 14 10:57 iwlwifi-7260-10.ucode -rw-r--r--. 1 root root 782300 Apr 14 10:57 iwlwifi-7260-12.ucode -rw-r--r--. 1 root root 683236 Apr 14 10:57 iwlwifi-7260-7.ucode -rw-r--r--. 1 root root 679780 Apr 14 10:57 iwlwifi-7260-8.ucode -rw-r--r--. 1 root root 680508 Apr 14 10:57 iwlwifi-7260-9.ucode ... So it appears that I have the firmware I need. Other reports of this issue say that it is likely a hardware problem. I do not think this is a bug in our firmware.
John to document this on the wiki.
Added to the wiki