Bug#902678: unsub_copy: segfault at 0 ip error 4 in libc-2.19.so

[Arkadiusz Zug <a.zug@inis.pl>]

Hello,

Thanks for your reply.

No. I have only unsub_copy. I don't have any other errors and thats why I wrote to you. I couldn't find this kind of error. I tried to find in google without result. Google doesn't know what is "unsub_copy".

I have this error all the time:

Jul  2 10:32:07 backup kernel: [3378556.256208] unsub_copy[25424]: segfault at 0 ip 00007f85140a65e4 sp 00007ffd83eb0660 error 4 in libc-2.19.so[7f851403d000+1a1000]
Jul  2 10:32:21 backup kernel: [3378570.486331] unsub_copy[25659]: segfault at 0 ip 00007f4a1a8885e4 sp 00007ffe167704f0 error 4 in libc-2.19.so[7f4a1a81f000+1a1000]
Jul  2 10:32:26 backup kernel: [3378575.365569] unsub_copy[25748]: segfault at 0 ip 00007f1f44eaa5e4 sp 00007ffff4ffb830 error 4 in libc-2.19.so[7f1f44e41000+1a1000]
Jul  2 10:32:37 backup kernel: [3378586.772931] unsub_copy[26131]: segfault at 0 ip 00007f20826c15e4 sp 00007ffc8b4fb880 error 4 in libc-2.19.so[7f2082658000+1a1000]
Jul  2 10:32:37 backup kernel: [3378586.865179] unsub_copy[26137]: segfault at 0 ip 00007fec6230f5e4 sp 00007ffc0c939670 error 4 in libc-2.19.so[7fec622a6000+1a1000]
Jul  2 10:32:46 backup kernel: [3378595.559060] unsub_copy[26252]: segfault at 0 ip 00007f6ea326e5e4 sp 00007ffeaf57b4a0 error 4 in libc-2.19.so[7f6ea3205000+1a1000]
Jul  2 10:33:07 backup kernel: [3378616.679965] unsub_copy[26760]: segfault at 0 ip 00007fab3543f5e4 sp 00007fff0b6f3700 error 4 in libc-2.19.so[7fab353d6000+1a1000]
Jul  2 10:33:10 backup kernel: [3378619.534546] unsub_copy[26832]: segfault at 0 ip 00007f305bc015e4 sp 00007fff5ed89110 error 4 in libc-2.19.so[7f305bb98000+1a1000]
Jul  2 10:33:10 backup kernel: [3378619.589491] unsub_copy[26838]: segfault at 0 ip 00007f473036b5e4 sp 00007ffd9bcb1da0 error 4 in libc-2.19.so[7f4730302000+1a1000]
Jul  2 10:33:22 backup kernel: [3378632.002427] unsub_copy[27069]: segfault at 0 ip 00007f64381b55e4 sp 00007fff490645a0 error 4 in libc-2.19.so[7f643814c000+1a1000]
Jul  2 10:33:25 backup kernel: [3378634.150756] unsub_copy[27210]: segfault at 0 ip 00007fbd036315e4 sp 00007ffe52a9a1b0 error 4 in libc-2.19.so[7fbd035c8000+1a1000]

--

Pozdrawiam,

Arkadiusz Zug

System Administrator

+48 510 152 832

a.zug@inis.pl

www.inis.pl

2018-07-01 23:16 GMT+02:00 Aurelien Jarno <aurelien@aurel32.net>:

control: tag -1 + moreinfo

On 2018-06-29 14:19, Arkadiusz Zug wrote:
> Package: reportbug
> Version: 6.6.3+deb8u1
> Severity: normal
>
> Dear Maintainer,
>
>    * What led up to the situation?
>     Answer: don't know, nothing new was installed
>
>    * What exactly did you do (or not do) that was effective (or
>      ineffective)?
>     Answer: nothing cause cannot find solution google don't know what is "unsub_copy"
>
>    * What was the outcome of this action?
>
>    * What outcome did you expect instead?
>
> Problem: Since few days ago I found in the kern.log / messages.log and syslog below lines:
>
> These lines appear randomly like below example,

Do you only have the problem with "unsub_copy", or do you also have
other programs crashing the same way? Can you tell us what is
"unsub_copy", it doesn't appear to be something shipped by debian.

> Jun 29 14:09:09 backup kernel: [3132191.949481] unsub_copy[10238]: segfault at 0 ip 00007fa8e46695e4 sp 00007ffe8a7709a0 error 4 in libc-2.19.so[7fa8e4600000+1a1000]

This address correspond to the _IO_fclose function (corresponding to
fclose) and happens when the first argument, the pointer to the FILE
structure, is dereferenced. This pointer is NULL, so it doesn't seems to
be a bug in glibc.

Aurelien

--
Aurelien Jarno                          GPG: 4096R/1DDD8C9B
aurelien@aurel32.net                 http://www.aurel32.net