Ticket #12451 (closed defect: duplicate)
CForth awakes after a suspend cycle
|Reported by:||wad||Owned by:||wmb@…|
|Action Needed:||never set||Verified:||no|
|Deployments affected:||Blocked By:|
On an XO-4 C1 (SKU298), running Q7B10, EC 0.3.07, and 13.1.0 build 22, I see strange behavior on the serial port after a resume.
This system has Wifi disabled by blacklisting the mwifiex and btmrvl modules.
I boot it into sugar. The serial port shows Linux console output and provides a Linux prompt. The CForth serial port (second port) is inactive (it shows the CForth banner from boot). I let the system go into sleep normally. When I wake it, the serial port shows the Linux serial console information, but if a return key is pressed the OK prompt shows instead of the Linux prompt. Typing banner shows that it is the CForth prompt, and not the OFW one. The second serial ports starts mirroring what is typed/output on the main serial port.
The Linux system will continue to operate (suspend/resume) fine, but the serial port will be unusable.
This problem has been seen frequently, but maddeningly difficult to reproduce at will. It is not specific to the the first suspend.