Description of problem: Encountered a bug at libreoffice, got abrt to do back-trace. Have loaded all debuginfo files that gdb asks for. Running simple "where" takes very long time because of two things: - gdb loads first all debuginfo files into memory and in this particular case there are very large amounts of that data - guess: internal data structures looking it up are inefficient, and therefore each back-trace step takes several minutes of memory searching (or file IO?) to locate particular line of debuginfo. ( libreoffice-debuginfo 688 MB, installed size: 2.8 GB. ) Version-Release number of selected component (if applicable): gdb-7.6.50.20130731-19.fc20.x86_64 How reproducible: Every time I look at libreoffice back-traces with full symbol sets. If I throw away libreoffice-debuginfo, then back-trace production is fast, but usefulness is less. Additional info: This machine has 16 GB RAM, no swap is happening. I would use "gcc -pg" version of gdb to see where it really spends all that time, but don't have time myself to debug it more..
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Sourceware bugzilla issue has been fixed. Libreoffice has not crashed as of late on me so I have not had change to validate the backtrace production. If it persists at F21/F22, another bug can be issued.
(In reply to matti aarnio from comment #2) > Sourceware bugzilla issue has been fixed. > Libreoffice has not crashed as of late on me so I have not had change to > validate the backtrace production. > > If it persists at F21/F22, another bug can be issued. You can still obtain a backtrace from LibreOffice (or any other program) by (e.g.) attaching to the running process. You just need to obtain the PID of the process, and then issue a "gdb program PID".