bin/54502: makemandb crashes

[martin%NetBSD.org@localhost]

>Number:         54502
>Category:       bin
>Synopsis:       makemandb crashes
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Aug 29 07:20:00 +0000 2019
>Originator:     Martin Husemann
>Release:        NetBSD 9.99.10
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD space-truckin.duskware.de 9.99.10 NetBSD 9.99.10 (GENERIC) #3: Tue Aug 27 10:58:41 CEST 2019 martin%seven-days-to-the-wolves.aprisoft.de@localhost:/work/src/sys/arch/evbarm/compile/GENERIC evbarm
Architecture: earmv7hfeb
Machine: evbarm
>Description:

I noticed in my daily report:

Possible core dumps: 
/usr/share/man/makemandb.core               

and:

Updating man page index:
makemandb: no such table: mandb_links   
makemandb: no such table: mandb_links    
[..]


Looking at the core file:
Reading symbols from makemandb...
Reading symbols from /usr/libdata/debug//usr/sbin/makemandb.debug...
[New process 1]
Core was generated by `makemandb'.
Program terminated with signal SIGSEGV, Segmentation fault.
(gdb) bt full
#0  rewrite_macro2len (arg=0x466e2076, mdoc=<optimized out>)
    at /work/src/external/bsd/mdocml/lib/libmandoc/../../dist/mdoc_validate.c:1644
        width = <optimized out>
        tok = <optimized out>
#1  0x099e4444 in post_bl_norm (mdoc=0x68e9a060)
    at /work/src/external/bsd/mdocml/lib/libmandoc/../../dist/mdoc_validate.c:703
        argv = 0x68c267f4
        wa = 0x68c267f4
        i = 1
        lt = LIST__NONE
        n = 0x68ece020
        mdoclt = <optimized out>
        n = <optimized out>
        argv = <optimized out>
        wa = <optimized out>
        i = <optimized out>
        mdoclt = <optimized out>
        lt = <optimized out>
#2  post_bl_head (mdoc=0x68e9a060)
    at /work/src/external/bsd/mdocml/lib/libmandoc/../../dist/mdoc_validate.c:1664
        nh = <optimized out>
        nch = <optimized out>
        nnext = <optimized out>
        argv = <optimized out>
        i = <optimized out>
        nbl = <optimized out>
        j = <optimized out>
        nbl = <optimized out>
        nh = <optimized out>
        nch = <optimized out>
        nnext = <optimized out>
        argv = <optimized out>
        i = <optimized out>
        j = <optimized out>
#3  post_bl (mdoc=0x68e9a060)
    at /work/src/external/bsd/mdocml/lib/libmandoc/../../dist/mdoc_validate.c:1735
        nparent = <optimized out>
        nprev = <optimized out>
        nblock = <optimized out>
        nbody = <optimized out>
        nchild = <optimized out>
        nnext = <optimized out>
        prev_Er = <optimized out>
        order = <optimized out>
#4  0x099e5ab0 in mdoc_validate (mdoc=0x68e9a060)
    at /work/src/external/bsd/mdocml/lib/libmandoc/../../dist/mdoc_validate.c:378
        n = 0x68ece080
        np = <optimized out>
        p = <optimized out>
        __func__ = "mdoc_validate"
#5  0x099e55d4 in mdoc_validate (mdoc=0x68e9a060)
    at /work/src/external/bsd/mdocml/lib/libmandoc/../../dist/mdoc_validate.c:322
        n = 0x68ece020
        np = <optimized out>
        p = <optimized out>
        __func__ = "mdoc_validate"
#6  0x099e55d4 in mdoc_validate (mdoc=0x68e9a060)
    at /work/src/external/bsd/mdocml/lib/libmandoc/../../dist/mdoc_validate.c:322
        n = 0x68ecdfc0
        np = <optimized out>
        p = <optimized out>
        __func__ = "mdoc_validate"
#7  0x099e55d4 in mdoc_validate (mdoc=0x68e9a060)
    at /work/src/external/bsd/mdocml/lib/libmandoc/../../dist/mdoc_validate.c:322
        n = 0x68ecdea0
        np = <optimized out>
        p = <optimized out>
        __func__ = "mdoc_validate"
#8  0x099e55d4 in mdoc_validate (mdoc=0x68e9a060)
    at /work/src/external/bsd/mdocml/lib/libmandoc/../../dist/mdoc_validate.c:322
        n = 0x68e9a0c0
        np = <optimized out>
        p = <optimized out>
        __func__ = "mdoc_validate"
#9  0x099d5308 in mparse_result (curp=0x68ec4000)
    at /work/src/external/bsd/mdocml/lib/libmandoc/../../dist/read.c:696
No locals.
#10 0x099f0a2c in begin_parse (fd=4, rec=0x7ff21940, mp=0x68ec4000, 
    file=0x68d7a920 "/usr/share/man/man9/vn_open.9")
    at /work/src/usr.sbin/makemandb/makemandb.c:883
        roff = <optimized out>
        roff = <optimized out>
#11 update_db (rec=0x7ff21940, mp=0x68ec4000, db=0x6961e208)
    at /work/src/usr.sbin/makemandb/makemandb.c:825
        fd = 4
        stmt = 0x68deb278
        file = 0x68d7a920 "/usr/share/man/man9/vn_open.9"
        errmsg = 0x0
        err_count = 19
        md5sum = <optimized out>
        rows = 0x68c265d0
        row = <optimized out>
        rc = <optimized out>
        parent = 0x68d8b5b0 "/usr/share/man"
        buf = 0x689527c0
        buflen = <optimized out>
        link_count = 0
        sqlstr = 0x99f2168 "SELECT device, inode, mtime, parent, file FROM metadb.file_cache fc WHERE NOT EXISTS(SELECT 1 FROM mandb_meta WHERE  device = fc.device AND inode = fc.inode AND   mtime = fc.mtime AND file = fc.file)"
        new_count = 16
        total_count = 6315
        md5_status = <optimized out>
        sqlstr = <optimized out>
        stmt = <optimized out>
        file = <optimized out>
        parent = <optimized out>
        errmsg = <optimized out>
        md5sum = <optimized out>
        buf = <optimized out>
        buflen = <optimized out>
        rows = <optimized out>
        row = <optimized out>
        new_count = <optimized out>
        total_count = <optimized out>
        err_count = <optimized out>
        link_count = <optimized out>
        md5_status = <optimized out>
        rc = <optimized out>
        fd = <optimized out>
#12 main (argc=<optimized out>, argv=<optimized out>)
    at /work/src/usr.sbin/makemandb/makemandb.c:434
        file = <optimized out>
        sqlstr = 0x99f2080 "CREATE TABLE metadb.file_cache(device, inode, mtime, parent, file PRIMARY KEY);CREATE UNIQUE INDEX metadb.index_file_cache_dev ON file_cache (device, inode)"
        manconf = <optimized out>
        line = 0x68e44100 "January 2, 2017"
        command = 0x696204a8 "Aq"
        errmsg = 0x0
        ch = <optimized out>
        mp = 0x68ec4000
        db = 0x6961e208
        len = <optimized out>
        linesize = 128
        rec = {name = 0x0, name_desc = 0x0, desc = {
            data = 0x6938b000 "Vnode attributes describe attributes of a file or directory including file permissions, owner, group, size, access time and modification time. A vnode attribute has the following structure: struct vat"..., 
            buflen = 20480, offset = 0}, lib = {data = 0x6961e000 "", 
            buflen = 512, offset = 0}, return_vals = {data = 0x694fe000 "", 
            buflen = 1024, offset = 0}, env = {data = 0x694fe800 "", 
            buflen = 1024, offset = 0}, files = {data = 0x694fec00 "", 
            buflen = 1024, offset = 0}, exit_status = {data = 0x694fe400 "", 
            buflen = 1024, offset = 0}, diagnostics = {data = 0x694ff000 "", 
            buflen = 1024, offset = 0}, errors = {data = 0x694ff400 "", 
            buflen = 1024, offset = 0}, section = 0x0, xr_found = 0, 
          md5_hash = 0x68c26620 "5cee1c625fd3699aa9abb6399076e92b", 
          device = 4096, inode = 18692514, mtime = 1483644222, machine = 0x0, 
          links = 0x0, file_path = 0x68d612c0 "/usr/share/man/man9/vn_open.9", 
          page_type = 0}


>How-To-Repeat:
no idea, just happens on this machine.

>Fix:
n/a