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Hi, I'm running Linux 4.9.30 (Debian Stretch), with GDB 8.0 (compiled from source, with './configure --with-intel-pt'). libipt is present and gdb is linked against it. I'm running an Intel Xeon CPU E5-2680 v4 (which supports Intel PT, the flag is also present in '/proc/cpuinfo'). However, when I'm trying to do a record-and-play session, I get the error message "Target does not support branch tracing": $ gcc -g crash.c $ gdb -q ./a.out (gdb) start ... (gdb) record btrace pt Target does not support branch tracing. Any idea why this happens? I have seen https://sourceware.org/ml/gdb/2016-09/msg00029.html and my setup fullfills are requirements. Greetings Jack
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