![]() Not sure if that might have anything to do with it, but at this point, I have no idea which details may turn out to be important. Edit: Come to think of it, the telemetry data sysfs attributes are being created and managed via the hwmon kernel API. Some of the attributes are for showing/setting various registers on the board, and the other attributes are actual telemetry data being parsed out of the data received on one of the serial ports. The driver also creates numerous sysfs attributes. I won't go into detail about the device or the driver, because those don't seem to be the cause of the problem, but basically the device has 4 separate RS-232 serial interfaces on it, and my driver creates four character devices, with corresponding device nodes in /dev/. It's a development machine and my driver (and associated test utils) is the only thing running on it. Sorry, I don't know the exact specs off-hand because it hasn't mattered up until now, and I didn't think to check before I left work today. It's running RHEL 5.7 with Linux kernel 2.6.18. ![]() The machine I'm running on has something like 24 cores and a fairly large amount of RAM. I'm working on a kernel driver for a PCIe board. ![]() Also, I apologize if ServerFault isn't the ideal place for this question, but I don't think StackOverflow would be appropriate because it doesn't appear to be a problem with my code per se, so much as me just overwhelming the system somehow with my test setup. ![]() I'm having a problem which is leaving me with very few clues as to what might be going on.
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