CODEWITHSUNDEEP
clinuxmultithreadingdebugging
godo
godo

Reputation: 335

How to debug stuck thread?

I have a multi-threaded C process running under Linux. Occasionally, i.e.: few times a month, one of the threads hangs (it does not reach the sleep which is placed at the end of each thread).

How can I debug it? Is there a way to know what part of the code is executing when the thread gets stuck?

Upvotes: 1

Views: 1452

Answers (2)

Hien Nguyen
Hien Nguyen

Reputation: 11

You can use GDB to debug coredumps.

#~ gdb <source binary> <coredump file>

In gdb process, call back trace to get the functions trace leads to crash.

gdb> bt

Upvotes: 0

Devolus
Devolus

Reputation: 22074

On Linux you can kill it with kill -11 and then look at the coredump. You can also attach a debugger and see what it's currently doing.

You can also add logging to see what it is doing.

Upvotes: 2

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