dclerk Memory Corruption

[Seijyaku]

CentOS 7.8.

Sent with [ProtonMail](https://protonmail.com) Secure Email.

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Thursday, September 3, 2020 2:02 PM, Ross Salas <ross.salas at gmail.com> wrote:

> Which operating system/version you running?
>
> On Thu, Sep 3, 2020 at 11:36 AM Seijyaku <[seijyaku+filepro at protonmail.com](mailto:seijyaku%2Bfilepro at protonmail.com)> wrote:
>
>> Below is the output from the Linux free command. I assume this is what you're asking for?
>>
>> total used free shared buff/cache available
>> Mem: 32936704 2835928 2408340 1759048 27692436 27864508
>> Swap: 0 0 0
>>
>> 32GB installed, about 3GB used, the majority as buffer/cache.
>>
>> Sent with ProtonMail Secure Email.
>>
>> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
>> On Thursday, September 3, 2020 1:23 PM, Ross Salas via Filepro-list <filepro-list at lists.celestial.com> wrote:
>>
>>> what's the memory (RAM) status of that server?
>>>
>>> On Thu, Sep 3, 2020 at 10:58 AM Seijyaku via Filepro-list <
>>> filepro-list at lists.celestial.com> wrote:
>>>
>>> > 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?
>>> > \x07,
>>> > *** Error in `dclerk': malloc(): memory corruption (fast): 0x08b0c2c8 ***,
>>> > ======= Backtrace: =========,
>>> > /lib/libc.so.6(+0x77dfc)[0xf7ddfdfc],
>>> > /lib/libc.so.6(+0x7ae98)[0xf7de2e98],
>>> > /lib/libc.so.6(__libc_malloc+0x9a)[0xf7de496a],
>>> > dclerk[0x80b1e4e],
>>> > dclerk[0x80b18e6],
>>> > dclerk[0x80b15f1],
>>> > dclerk[0x80b1e02],
>>> > dclerk[0x80ae0af],
>>> > dclerk[0x80af2f4],
>>> > dclerk[0x80aec39],
>>> > dclerk[0x80a95ad],
>>> > [0xf7f8bec0],
>>> > dclerk[0x80daa1d],
>>> > dclerk[0x80daf33],
>>> > dclerk[0x80d90d7],
>>> > dclerk[0x80d301b],
>>> > dclerk[0x80d66cd],
>>> > dclerk[0x80d61ef],
>>> > dclerk[0x80d6178],
>>> > dclerk[0x8070610],
>>> > dclerk[0x8061017],
>>> > dclerk[0x805fbb2],
>>> > dclerk[0x805e65f],
>>> > dclerk[0x805e907],
>>> > dclerk[0x8071bc2],
>>> > dclerk[0x804f2e7],
>>> > dclerk[0x804e230],
>>> > /lib/libc.so.6(__libc_start_main+0xf3)[0xf7d822a3],
>>> > ======= Memory map: ========,
>>> > 08048000-080f2000 r-xp 00000000 08:02 1614140597 /opt/filepro/dclerk,
>>> > 080f2000-08104000 rwxp 000aa000 08:02 1614140597 /opt/filepro/dclerk,
>>> > 08104000-08113000 rwxp 00000000 00:00 0 ,
>>> > 08aa0000-08b2a000 rwxp 00000000 00:00 0 [heap],
>>> > f7b00000-f7b21000 rwxp 00000000 00:00 0 ,
>>> > f7b21000-f7c00000 ---p 00000000 00:00 0 ,
>>> > f7cae000-f7cc7000 r-xp 00000000 08:02 1611440773
>>> > /usr/lib/libgcc_s-4.8.5-20150702.so.1,
>>> > f7cc7000-f7cc8000 r-xp 00018000 08:02 1611440773
>>> > /usr/lib/libgcc_s-4.8.5-20150702.so.1,
>>> > f7cc8000-f7cc9000 rwxp 00019000 08:02 1611440773
>>> > /usr/lib/libgcc_s-4.8.5-20150702.so.1,
>>> > f7cd5000-f7d43000 rwxp 00000000 00:00 0 ,
>>> > f7d43000-f7d53000 rwxs 00000000 00:01 2 /SYSVf102e0ed (deleted),
>>> > f7d53000-f7d5e000 r-xp 00000000 08:02 1611347286 /usr/lib/
>>> > libnss_files-2.17.so,
>>> > f7d5e000-f7d5f000 r-xp 0000a000 08:02 1611347286 /usr/lib/
>>> > libnss_files-2.17.so,
>>> > f7d5f000-f7d60000 rwxp 0000b000 08:02 1611347286 /usr/lib/
>>> > libnss_files-2.17.so,
>>> > f7d60000-f7d68000 rwxp 00000000 00:00 0 ,
>>> > f7d68000-f7f2c000 r-xp 00000000 08:02 1611317456 /usr/lib/libc-2.17.so,
>>> > f7f2c000-f7f2d000 ---p 001c4000 08:02 1611317456 /usr/lib/libc-2.17.so,
>>> > f7f2d000-f7f2f000 r-xp 001c4000 08:02 1611317456 /usr/lib/libc-2.17.so,
>>> > f7f2f000-f7f30000 rwxp 001c6000 08:02 1611317456 /usr/lib/libc-2.17.so,
>>> > f7f30000-f7f33000 rwxp 00000000 00:00 0 ,
>>> > f7f33000-f7f73000 r-xp 00000000 08:02 1611317464 /usr/lib/libm-2.17.so,
>>> > f7f73000-f7f74000 r-xp 0003f000 08:02 1611317464 /usr/lib/libm-2.17.so,
>>> > f7f74000-f7f75000 rwxp 00040000 08:02 1611317464 /usr/lib/libm-2.17.so,
>>> > f7f75000-f7f78000 r-xp 00000000 08:02 1610785783
>>> > /usr/lib/libtermcap.so.2.0.8,
>>> > f7f78000-f7f79000 r-xp 00002000 08:02 1610785783
>>> > /usr/lib/libtermcap.so.2.0.8,
>>> > f7f79000-f7f7a000 rwxp 00003000 08:02 1610785783
>>> > /usr/lib/libtermcap.so.2.0.8,
>>> > f7f85000-f7f87000 rwxp 00000000 00:00 0 ,
>>> > f7f87000-f7f8b000 r--p 00000000 00:00 0 [vvar],
>>> > f7f8b000-f7f8d000 r-xp 00000000 00:00 0 [vdso],
>>> > f7f8d000-f7faf000 r-xp 00000000 08:02 1610615685 /usr/lib/ld-2.17.so,
>>> > f7faf000-f7fb0000 r-xp 00021000 08:02 1610615685 /usr/lib/ld-2.17.so,
>>> > f7fb0000-f7fb1000 rwxp 00022000 08:02 1610615685 /usr/lib/ld-2.17.so,
>>> > ffa8e000-ffab0000 rwxp 00000000 00:00 0 [stack],
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