<div>I'm working on a server running dclerk version 5.0.14D4 that is occasionally showing the error below in some of the logs.  Any input on what might be causing this or how to resolve it?<br></div><div class="protonmail_signature_block"><div class="protonmail_signature_block-user protonmail_signature_block-empty"><br></div><div class="protonmail_signature_block-proton"><br></div></div><div>\x07,<br></div><div>*** Error in `dclerk': malloc(): memory corruption (fast): 0x08b0c2c8 ***,<br></div><div>======= Backtrace: =========,<br></div><div>/lib/libc.so.6(+0x77dfc)[0xf7ddfdfc],<br></div><div>/lib/libc.so.6(+0x7ae98)[0xf7de2e98],<br></div><div>/lib/libc.so.6(__libc_malloc+0x9a)[0xf7de496a],<br></div><div>dclerk[0x80b1e4e],<br></div><div>dclerk[0x80b18e6],<br></div><div>dclerk[0x80b15f1],<br></div><div>dclerk[0x80b1e02],<br></div><div>dclerk[0x80ae0af],<br></div><div>dclerk[0x80af2f4],<br></div><div>dclerk[0x80aec39],<br></div><div>dclerk[0x80a95ad],<br></div><div>[0xf7f8bec0],<br></div><div>dclerk[0x80daa1d],<br></div><div>dclerk[0x80daf33],<br></div><div>dclerk[0x80d90d7],<br></div><div>dclerk[0x80d301b],<br></div><div>dclerk[0x80d66cd],<br></div><div>dclerk[0x80d61ef],<br></div><div>dclerk[0x80d6178],<br></div><div>dclerk[0x8070610],<br></div><div>dclerk[0x8061017],<br></div><div>dclerk[0x805fbb2],<br></div><div>dclerk[0x805e65f],<br></div><div>dclerk[0x805e907],<br></div><div>dclerk[0x8071bc2],<br></div><div>dclerk[0x804f2e7],<br></div><div>dclerk[0x804e230],<br></div><div>/lib/libc.so.6(__libc_start_main+0xf3)[0xf7d822a3],<br></div><div>======= Memory map: ========,<br></div><div>08048000-080f2000 r-xp 00000000 08:02 1614140597                         /opt/filepro/dclerk,<br></div><div>080f2000-08104000 rwxp 000aa000 08:02 1614140597                         /opt/filepro/dclerk,<br></div><div>08104000-08113000 rwxp 00000000 00:00 0 ,<br></div><div>08aa0000-08b2a000 rwxp 00000000 00:00 0                                  [heap],<br></div><div>f7b00000-f7b21000 rwxp 00000000 00:00 0 ,<br></div><div>f7b21000-f7c00000 ---p 00000000 00:00 0 ,<br></div><div>f7cae000-f7cc7000 r-xp 00000000 08:02 1611440773                         /usr/lib/libgcc_s-4.8.5-20150702.so.1,<br></div><div>f7cc7000-f7cc8000 r-xp 00018000 08:02 1611440773                         /usr/lib/libgcc_s-4.8.5-20150702.so.1,<br></div><div>f7cc8000-f7cc9000 rwxp 00019000 08:02 1611440773                         /usr/lib/libgcc_s-4.8.5-20150702.so.1,<br></div><div>f7cd5000-f7d43000 rwxp 00000000 00:00 0 ,<br></div><div>f7d43000-f7d53000 rwxs 00000000 00:01 2                                  /SYSVf102e0ed (deleted),<br></div><div>f7d53000-f7d5e000 r-xp 00000000 08:02 1611347286                         /usr/lib/libnss_files-2.17.so,<br></div><div>f7d5e000-f7d5f000 r-xp 0000a000 08:02 1611347286                         /usr/lib/libnss_files-2.17.so,<br></div><div>f7d5f000-f7d60000 rwxp 0000b000 08:02 1611347286                         /usr/lib/libnss_files-2.17.so,<br></div><div>f7d60000-f7d68000 rwxp 00000000 00:00 0 ,<br></div><div>f7d68000-f7f2c000 r-xp 00000000 08:02 1611317456                         /usr/lib/libc-2.17.so,<br></div><div>f7f2c000-f7f2d000 ---p 001c4000 08:02 1611317456                         /usr/lib/libc-2.17.so,<br></div><div>f7f2d000-f7f2f000 r-xp 001c4000 08:02 1611317456                         /usr/lib/libc-2.17.so,<br></div><div>f7f2f000-f7f30000 rwxp 001c6000 08:02 1611317456                         /usr/lib/libc-2.17.so,<br></div><div>f7f30000-f7f33000 rwxp 00000000 00:00 0 ,<br></div><div>f7f33000-f7f73000 r-xp 00000000 08:02 1611317464                         /usr/lib/libm-2.17.so,<br></div><div>f7f73000-f7f74000 r-xp 0003f000 08:02 1611317464                         /usr/lib/libm-2.17.so,<br></div><div>f7f74000-f7f75000 rwxp 00040000 08:02 1611317464                         /usr/lib/libm-2.17.so,<br></div><div>f7f75000-f7f78000 r-xp 00000000 08:02 1610785783                         /usr/lib/libtermcap.so.2.0.8,<br></div><div>f7f78000-f7f79000 r-xp 00002000 08:02 1610785783                         /usr/lib/libtermcap.so.2.0.8,<br></div><div>f7f79000-f7f7a000 rwxp 00003000 08:02 1610785783                         /usr/lib/libtermcap.so.2.0.8,<br></div><div>f7f85000-f7f87000 rwxp 00000000 00:00 0 ,<br></div><div>f7f87000-f7f8b000 r--p 00000000 00:00 0                                  [vvar],<br></div><div>f7f8b000-f7f8d000 r-xp 00000000 00:00 0                                  [vdso],<br></div><div>f7f8d000-f7faf000 r-xp 00000000 08:02 1610615685                         /usr/lib/ld-2.17.so,<br></div><div>f7faf000-f7fb0000 r-xp 00021000 08:02 1610615685                         /usr/lib/ld-2.17.so,<br></div><div>f7fb0000-f7fb1000 rwxp 00022000 08:02 1610615685                         /usr/lib/ld-2.17.so,<br></div><div>ffa8e000-ffab0000 rwxp 00000000 00:00 0                                  [stack],<br></div><div><br></div>