CODEWITHSUNDEEP
linuxbuffer-overflowintel-fpga
Tzig
Tzig

Reputation: 841

Tens of "external abort on non-linefetch (0x1018)" kernel messages on a CycloneV's embedded linux

I'm working on C++ program running on a custom Linux distro running on an Altera CycloneV FPGA.

When I print a complete page to the tty (accessed through a serial port on a Windows PC) I get a lot of these messages:

Unhandled fault: external abort on non-linefetch (0x1018) at (address)

(address) being a lot of consecutive addresses, always different ones

I'm looking for the cause of these messages. It overflows the /dev/kmsg buffer and I'm worried it could cause of some other bug in my program

Upvotes: 0

Views: 1343

Answers (1)

Tzig
Tzig

Reputation: 841

It took me some time but I found an answer: those messages are debug messages generated by the kernel and are completely harmless. Lowering the logging level made them disappear.

Upvotes: 1

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