Hi, I am working on an tool which is used for end to end testing of a telephone network. As a part of the tool, we have mobiles connected to the system (with kernel-2.6.16.13). The mobiles(CDC devices) being used are USB 2.0 full speed devices and are connected to the system using USB 2.0 high speed hubs. The device driver used to communicate to the mobiles is "generic usb-serial driver". A maximum of 32 mobiles are connected to one root hub(UHCI port) using hubs.
One of the basic tests performed using this application is continuous power-on/power-off of the mobiles for 200 cycles. From the application, AT commands(for power-on and power-off) are passed to the mobile through the "generic usb serial driver". When this testing is in progress, suddenly system got hanged. We could not see any pointer for the system hang, from the logs(/var/log/messages). Till the point of time the system got hanged, everything seems to be normal from the logs. And as the system got hanged, the logging stopped suddenly. What could be the reason for this behavior? Please find attached the .config file. Should I have to enable any debug options which may help to locate the pointer for system hang? Please let me know if any further information is required. Please share your experience. Regards, Sreevidya.
config
Description: config
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