Hopefully this is the right forum for this.

I'm running j8 stable on a linux box, with xml/sax and it segfaults on me:

#0  __memmove_ssse3_back () at
../sysdeps/x86_64/multiarch/memcpy-ssse3-back.S:2253
#1  0x00007ffff715989b in jtvec () from /home/ubuntu/j64-801/bin/libj.so
#2  0x00007ffff728211a in jtmemr () from /home/ubuntu/j64-801/bin/libj.so
#3  0x00007ffff7280abf in secf1 () from /home/ubuntu/j64-801/bin/libj.so
#4  0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#5  0x00007ffff7152bca in jtunquote () from /home/ubuntu/j64-801/bin/libj.so
#6  0x00007ffff71046e5 in jtupon2 () from /home/ubuntu/j64-801/bin/libj.so
#7  0x00007ffff7101e36 in jtdfs2 () from /home/ubuntu/j64-801/bin/libj.so
#8  0x00007ffff7152b47 in jtunquote () from /home/ubuntu/j64-801/bin/libj.so
#9  0x00007ffff70f5d26 in jtredg () from /home/ubuntu/j64-801/bin/libj.so
#10 0x00007ffff70f7baf in jtreduce () from /home/ubuntu/j64-801/bin/libj.so
#11 0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#12 0x00007ffff7145b64 in jtmonad () from /home/ubuntu/j64-801/bin/libj.so
#13 0x00007ffff7145669 in jtparsea () from /home/ubuntu/j64-801/bin/libj.so
#14 0x00007ffff7132e3e in jtparsex () from /home/ubuntu/j64-801/bin/libj.so
#15 0x00007ffff712e750 in jtxdefn () from /home/ubuntu/j64-801/bin/libj.so
#16 0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#17 0x00007ffff7152bca in jtunquote () from /home/ubuntu/j64-801/bin/libj.so
#18 0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#19 0x00007ffff7145b64 in jtmonad () from /home/ubuntu/j64-801/bin/libj.so
#20 0x00007ffff7145669 in jtparsea () from /home/ubuntu/j64-801/bin/libj.so
#21 0x00007ffff7145829 in jtparse () from /home/ubuntu/j64-801/bin/libj.so
#22 0x00007ffff7148847 in jtexec1 () from /home/ubuntu/j64-801/bin/libj.so
#23 0x00007ffff7281c8c in cb3 () from /home/ubuntu/j64-801/bin/libj.so
#24 0x00007ffff6a75b11 in ?? () from /lib/x86_64-linux-gnu/libexpat.so.1
#25 0x00007ffff6a7664e in ?? () from /lib/x86_64-linux-gnu/libexpat.so.1
#26 0x00007ffff6a749e1 in ?? () from /lib/x86_64-linux-gnu/libexpat.so.1
#27 0x00007ffff6a7516d in ?? () from /lib/x86_64-linux-gnu/libexpat.so.1
#28 0x00007ffff6a785df in XML_ParseBuffer () from
/lib/x86_64-linux-gnu/libexpat.so.1
#29 0x00007ffff7287a8d in docall () from /home/ubuntu/j64-801/bin/libj.so
#30 0x00007ffff7289899 in jtcdexec1 () from /home/ubuntu/j64-801/bin/libj.so
#31 0x00007ffff728a1f4 in jtcd () from /home/ubuntu/j64-801/bin/libj.so
#32 0x00007ffff7280b00 in secf2 () from /home/ubuntu/j64-801/bin/libj.so
#33 0x00007ffff7104323 in withl () from /home/ubuntu/j64-801/bin/libj.so
#34 0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#35 0x00007ffff7152bca in jtunquote () from /home/ubuntu/j64-801/bin/libj.so
#36 0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#37 0x00007ffff7145b64 in jtmonad () from /home/ubuntu/j64-801/bin/libj.so
#38 0x00007ffff7145669 in jtparsea () from /home/ubuntu/j64-801/bin/libj.so
#39 0x00007ffff7132e3e in jtparsex () from /home/ubuntu/j64-801/bin/libj.so
#40 0x00007ffff712e32b in jtxdefn () from /home/ubuntu/j64-801/bin/libj.so
#41 0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#42 0x00007ffff7152bca in jtunquote () from /home/ubuntu/j64-801/bin/libj.so
#43 0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#44 0x00007ffff7145b64 in jtmonad () from /home/ubuntu/j64-801/bin/libj.so
#45 0x00007ffff7145669 in jtparsea () from /home/ubuntu/j64-801/bin/libj.so
#46 0x00007ffff7132e3e in jtparsex () from /home/ubuntu/j64-801/bin/libj.so
#47 0x00007ffff712e750 in jtxdefn () from /home/ubuntu/j64-801/bin/libj.so
#48 0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#49 0x00007ffff7152bca in jtunquote () from /home/ubuntu/j64-801/bin/libj.so
#50 0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#51 0x00007ffff7145b64 in jtmonad () from /home/ubuntu/j64-801/bin/libj.so
#52 0x00007ffff7145669 in jtparsea () from /home/ubuntu/j64-801/bin/libj.so
#53 0x00007ffff7132e3e in jtparsex () from /home/ubuntu/j64-801/bin/libj.so
#54 0x00007ffff712e750 in jtxdefn () from /home/ubuntu/j64-801/bin/libj.so
#55 0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#56 0x00007ffff7152bca in jtunquote () from /home/ubuntu/j64-801/bin/libj.so
#57 0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#58 0x00007ffff7145b64 in jtmonad () from /home/ubuntu/j64-801/bin/libj.so
#59 0x00007ffff7145669 in jtparsea () from /home/ubuntu/j64-801/bin/libj.so
#60 0x00007ffff7132e3e in jtparsex () from /home/ubuntu/j64-801/bin/libj.so
#61 0x00007ffff712e750 in jtxdefn () from /home/ubuntu/j64-801/bin/libj.so
#62 0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#63 0x00007ffff7152bca in jtunquote () from /home/ubuntu/j64-801/bin/libj.so
#64 0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#65 0x00007ffff7145b64 in jtmonad () from /home/ubuntu/j64-801/bin/libj.so
#66 0x00007ffff7145669 in jtparsea () from /home/ubuntu/j64-801/bin/libj.so
#67 0x00007ffff7132e3e in jtparsex () from /home/ubuntu/j64-801/bin/libj.so
#68 0x00007ffff712e750 in jtxdefn () from /home/ubuntu/j64-801/bin/libj.so
#69 0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#70 0x00007ffff7152bca in jtunquote () from /home/ubuntu/j64-801/bin/libj.so
#71 0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#72 0x00007ffff7145b64 in jtmonad () from /home/ubuntu/j64-801/bin/libj.so
#73 0x00007ffff7145669 in jtparsea () from /home/ubuntu/j64-801/bin/libj.so
#74 0x00007ffff7132e3e in jtparsex () from /home/ubuntu/j64-801/bin/libj.so
#75 0x00007ffff712e750 in jtxdefn () from /home/ubuntu/j64-801/bin/libj.so
#76 0x00007ffff7101e36 in jtdfs2 () from /home/ubuntu/j64-801/bin/libj.so
#77 0x00007ffff7152b47 in jtunquote () from /home/ubuntu/j64-801/bin/libj.so
#78 0x00007ffff7101e36 in jtdfs2 () from /home/ubuntu/j64-801/bin/libj.so
#79 0x00007ffff7145b29 in jtdyad () from /home/ubuntu/j64-801/bin/libj.so
#80 0x00007ffff7145669 in jtparsea () from /home/ubuntu/j64-801/bin/libj.so
#81 0x00007ffff7145829 in jtparse () from /home/ubuntu/j64-801/bin/libj.so
#82 0x00007ffff7148847 in jtexec1 () from /home/ubuntu/j64-801/bin/libj.so
#83 0x00007ffff729866e in jttsit2 () from /home/ubuntu/j64-801/bin/libj.so
#84 0x00007ffff72986b6 in jttsit1 () from /home/ubuntu/j64-801/bin/libj.so
#85 0x00007ffff7101ded in jtdfs1 () from /home/ubuntu/j64-801/bin/libj.so
#86 0x00007ffff7145b64 in jtmonad () from /home/ubuntu/j64-801/bin/libj.so
#87 0x00007ffff7145669 in jtparsea () from /home/ubuntu/j64-801/bin/libj.so
#88 0x00007ffff7145829 in jtparse () from /home/ubuntu/j64-801/bin/libj.so
#89 0x00007ffff7148697 in jtimmex () from /home/ubuntu/j64-801/bin/libj.so
#90 0x00007ffff713dabb in jdo () from /home/ubuntu/j64-801/bin/libj.so
#91 0x00007ffff713db6c in JDo () from /home/ubuntu/j64-801/bin/libj.so
#92 0x0000000000402a74 in jedo ()
#93 0x000000000040285e in main ()

I'm prepared to extract whatever information might be needed via gdb.

I am not prepared to try to isolate the underlying problem.

I am comfortable giving the right person access to the running instance
where this occurs, should that be necessary.

Thanks,

-- 
Raul
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