[Debian-med-packaging] Bug#907624: Reopen

[Andreas Tille]

Control: reopen -1
Control: forwarded -1 https://github.com/soedinglab/ffindex_soedinglab/issues/7

Since we really want this code base I need to re-open the bug which is not solved.

In a gdb session I've found the actual code line which causes the SIGSEGV:


    ffindex_build -s ./test.data ./test.ffindex test/data test/data2
    ffindex_get  ./test.data ./test.ffindex a b foo | tee ./test.out
    a
    bb
    fooo
    fooo
    gdb --args ffindex_modify -u ./test.ffindex b
    GNU gdb (Debian 8.2-1) 8.2
    ...
    (gdb) break src/ffindex.c:553
    Breakpoint 1 (src/ffindex.c:553) pending.
    (gdb) run
    Starting program: ffindex_modify -u ./test.ffindex b
    Breakpoint 1, action (node=0x555555559801, which=postorder, depth=1, misc=0x555555559260) at /build/ffindex-0.9.9.7.soedinglab+git20171201.74550c8/src/ffindex.c:553
    553                 entry = *(ffindex_entry_t **) node;
    (gdb) print entry
    $1 = (ffindex_entry_t *) 0x7
    (gdb) print entry->offset
    Cannot access memory at address 0x7
    (gdb) next
    554                 if(fprintf(index_file, "%s\t%zd\t%zd\n", entry->name, entry->offset, entry->length) < 0)
    (gdb) next
    Program received signal SIGSEGV, Segmentation fault.
    0x00007ffff7f7bc6d in action (node=0x555555559801, which=postorder, depth=1, misc=0x555555559260) at /build/ffindex-0.9.9.7.soedinglab+git20171201.74550c8/src/ffindex.c:554
    554                 if(fprintf(index_file, "%s\t%zd\t%zd\n", entry->name, entry->offset, entry->length) < 0)

I'll keep on discussing this with upstream.

Kind regards

       Andreas.


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