hi

with 2.14 I get a segmentation fault in print_timeline with:

fossil search Version -R fossil

Here is a script which shows the problem:

    ----8<----
    ##:2> fossil clone --accept-any-cert http://www.fossil-scm.org/fossil fossil
    redirect with status 301 to https://www.fossil-scm.org/fossil
    Round-trips: 1   ... Round-trips: 7   Artifacts sent: 0  received: 50961
    Clone done, sent: 2166  received: 35182303  ip: 45.33.6.223
    Rebuilding repository meta-data...
      0.0% complete...  99.1% complete...  100.1% complete...
    Extra delta compression... 
    Vacuuming the database... 
    project-id: CE59BB9F186226D80E49D1FA2DB29F935CCA0333
    server-id:  115fbb18e74dca99af1a3ac56f5e47971850842f
    admin-user: balducci (password is "Z3bFdvCVY8")
    ##:3> fossil search Version -R fossil
    === 2021-01-21 ===
    Segmentation fault
    ##:4> gdb -q /usr/bin/fossil
    Reading symbols from /usr/bin/fossil...
    (gdb) run search Version -R fossil
    Starting program: /usr/bin/fossil search Version -R fossil
    [Thread debugging using libthread_db enabled]
    Using host libthread_db library "/lib64/libthread_db.so.1".
    === 2021-01-21 ===

    Program received signal SIGSEGV, Segmentation fault.
    0x0000000000685ac6 in print_timeline ()
    (gdb) bt
    #0  0x0000000000685ac6 in print_timeline ()
    #1  0x00000000005f90f6 in search_cmd ()
    #2  0x00000000005bde7c in fossil_main ()
    #3  0x00000000005bd5a3 in main ()
    (gdb) quit
    A debugging session is active.

            Inferior 1 [process 24244] will be killed.

    Quit anyway? (y or n) y
    ##:5> exit
    ---->8----

No problem whatsoever with <=2.13

Building on linux with default configure options

uname -srvmo:

    ----8<----
    Linux 5.10.10 #1 SMP Sun Jan 24 08:26:26 CET 2021 x86_64 GNU/Linux
    ---->8----

gcc -v:

    ----8<----
    Using built-in specs.
    COLLECT_GCC=gcc
    COLLECT_LTO_WRAPPER=/opt/stow.d/versions/gcc-10.2.0/usr/lib64/gcc/x86_64-pc-linux-gnu/10.2.0/lto-wrapper
    Target: x86_64-pc-linux-gnu
    Configured with: /home/balducci/tmp/install-us-d/gcc-10.1.0.d/gcc-10.2.0/configure --prefix=/opt/stow.d/versions/gcc-10.2.0/usr --libdir=/opt/stow.d/versions/gcc-10.2.0/usr/lib64 --libexecdir=/opt/stow.d/versions/gcc-10.2.0/usr/lib64 --enable-shared --disable-bootstrap --enable-languages=c,c++,objc,fortran --enable-multilib
    Thread model: posix
    Supported LTO compression algorithms: zlib zstd
    gcc version 10.2.0 (GCC) 
    ---->8----

thanks for your valuable work

ciao

-gabriele