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<div class="moz-cite-prefix">Hi,<br>
<br>
If you've got control how JVM gets started then you could try
limiting the size of the stack (-Xss option) to a large enough
value - so this is a bit of iterative process...<br>
<br>
Regards,<br>
<br>
Sandor<br>
<br>
On 06/23/2017 04:54 PM, Damian Bell wrote:<br>
</div>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Exact
same situation running kernel 4.11.6-1.el7.elrepo.x86_64.
Unfortunately my Linux/Java skills aren’t particularly
impressive – is there a feasible workaround to maintain my
present kernel without having to go back to 3.10.x at all?<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Thanks!
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif"
lang="EN-US">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif"
lang="EN-US"> syslog-ng
[<a class="moz-txt-link-freetext" href="mailto:syslog-ng-bounces@lists.balabit.hu">mailto:syslog-ng-bounces@lists.balabit.hu</a>]
<b>On Behalf Of </b>Czanik, Péter<br>
<b>Sent:</b> 23 June 2017 13:43<br>
<b>To:</b> Syslog-ng users' and developers' mailing list
<a class="moz-txt-link-rfc2396E" href="mailto:syslog-ng@lists.balabit.hu"><syslog-ng@lists.balabit.hu></a><br>
<b>Subject:</b> Re: [syslog-ng] java destinations<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<div>
<div>
<p class="MsoNormal">Hi,<o:p></o:p></p>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
Yes. Going back to an older kernel resolved (worked
around...) the problem.<o:p></o:p></p>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt">Thank you
and have a nice weekend!<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">CzP<o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal"><br clear="all">
<o:p></o:p></p>
<div>
<div>
<div>
<div>
<p class="MsoNormal">Peter Czanik (CzP) <<a
href="mailto:peter.czanik@balabit.com"
target="_blank" moz-do-not-send="true">peter.czanik@balabit.com</a>><br>
Balabit / syslog-ng upstream<br>
<a
href="https://www.balabit.com/blog/author/peterczanik/"
target="_blank" moz-do-not-send="true">https://www.balabit.com/blog/author/peterczanik/</a><br>
<a href="https://twitter.com/PCzanik"
target="_blank" moz-do-not-send="true">https://twitter.com/PCzanik</a><o:p></o:p></p>
</div>
</div>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
</div>
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<font
style="font-family:Calibri;font-size:10pt;color:#595959;">Infrastructure
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<div>
<p class="MsoNormal">On Fri, Jun 23, 2017 at 2:18 PM, Sandor
Geller <<a href="mailto:sandor.geller@ericsson.com"
target="_blank" moz-do-not-send="true">sandor.geller@ericsson.com</a>>
wrote:<o:p></o:p></p>
<blockquote style="border:none;border-left:solid #CCCCCC
1.0pt;padding:0cm 0cm 0cm
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt">
<div>
<div>
<p class="MsoNormal">Hi,<br>
<br>
Are you using recent kernels? The enhanced stack
protection fixing CVE-2017-1000364 causes
interoperability issues for certain Java apps...<br>
<br>
Regards,<br>
<br>
Sandor<o:p></o:p></p>
<div>
<div>
<p class="MsoNormal"><br>
<br>
On 06/23/2017 02:12 PM, Czanik, Péter wrote:<o:p></o:p></p>
</div>
</div>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<p class="MsoNormal"
style="margin-bottom:12.0pt">Hi,<o:p></o:p></p>
</div>
<p class="MsoNormal">I wanted to send
some logs to Elasticsearch, but I did
not succeed. Syslog-ng crashed.
Actually it seems to be something JVM
related. A bit too many things changed
recently in my test environment:<o:p></o:p></p>
</div>
<p class="MsoNormal">- a new laptop<o:p></o:p></p>
</div>
<p class="MsoNormal">- a new version of
vmware workstation<o:p></o:p></p>
</div>
<p class="MsoNormal">- a new version of glibc
and openjdk inside the vm-s (I always start
with a security update...)<o:p></o:p></p>
</div>
<p class="MsoNormal"><br>
The problem appeared both with syslog-ng 3.9
and 3.10 on both openSUSE Leap and CentOS 7.<o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal"
style="margin-bottom:12.0pt">Have you ever
seen anything similar?<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Bye,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">CzP<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">This one is from CentOS7
where I already tried rolling back glibc and
openjdk:<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"
style="margin-bottom:12.0pt"><br>
[2017-06-23T13:25:22.816610] Compiling
d_elastic reference [destination] at
[/etc/syslog-ng/conf.d/es2.conf:27:3]<br>
[2017-06-23T13:25:22.816968] Seeking the
journal to the start position;<br>
[2017-06-23T13:25:22.817808] Processing the
time zone file (32bit part);
filename='/usr/share/zoneinfo/UTC'<br>
#<br>
# A fatal error has been detected by the
Java Runtime Environment:<br>
#<br>
# SIGBUS (0x7) at pc=0x00007f5ecc511c18,
pid=1651, tid=0x00007f5ee3949b40<br>
#<br>
# JRE version: (8.0_121-b13) (build )<br>
# Java VM: OpenJDK 64-Bit Server VM
(25.121-b13 mixed mode linux-amd64
compressed oops)<br>
# Problematic frame:<br>
# j java.lang.Object.<clinit>()V+0<br>
#<br>
# Failed to write core dump. Core dumps have
been disabled. To enable core dumping, try
"ulimit -c unlimited" before starting Java
again<br>
#<br>
# An error report file with more information
is saved as:<br>
# /tmp/hs_err_pid1651.log<br>
#<br>
# If you would like to submit a bug report,
please visit:<br>
# <a
href="http://bugreport.java.com/bugreport/crash.jsp"
target="_blank" moz-do-not-send="true">http://bugreport.java.com/bugreport/crash.jsp</a><br>
#<br>
Aborted (core dumped)<br>
<br>
<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">This one is from
openSUSE, where I had gdb installed...<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"
style="margin-bottom:12.0pt"><br>
linux-pzl9:/var/lib/systemd/coredump # gdb
-c
core.syslog-ng.0.46a0d0e824ce4fa29a644ef713064044.2015.1498211596000000
/usr/sbin/syslog-ng<br>
GNU gdb (GDB; openSUSE Leap 42.2) 7.11.1<br>
Copyright (C) 2016 Free Software Foundation,
Inc.<br>
License GPLv3+: GNU GPL version 3 or later
<<a
href="http://gnu.org/licenses/gpl.html"
target="_blank" moz-do-not-send="true">http://gnu.org/licenses/gpl.html</a>><br>
This is free software: you are free to
change and redistribute it.<br>
There is NO WARRANTY, to the extent
permitted by law. Type "show copying"<br>
and "show warranty" for details.<br>
This GDB was configured as
"x86_64-suse-linux".<br>
Type "show configuration" for configuration
details.<br>
For bug reporting instructions, please see:<br>
<<a href="http://bugs.opensuse.org/"
target="_blank" moz-do-not-send="true">http://bugs.opensuse.org/</a>>.<br>
Find the GDB manual and other documentation
resources online at:<br>
<<a
href="http://www.gnu.org/software/gdb/documentation/"
target="_blank" moz-do-not-send="true">http://www.gnu.org/software/gdb/documentation/</a>>.<br>
For help, type "help".<br>
Type "apropos word" to search for commands
related to "word"...<br>
Reading symbols from
/usr/sbin/syslog-ng...(no debugging symbols
found)...done.<br>
[New LWP 2015]<br>
[New LWP 2016]<br>
[New LWP 2017]<br>
[New LWP 2018]<br>
[Thread debugging using libthread_db
enabled]<br>
Using host libthread_db library
"/lib64/libthread_db.so.1".<br>
Core was generated by `syslog-ng -Fvde'.<br>
Program terminated with signal SIGSEGV,
Segmentation fault.<br>
#0 _expand_stack_to (bottom=0x7ffe43f70fff
"", bottom@entry=0x7ffe43f70990 "") at
/usr/src/debug/icedtea-3.4.0/openjdk/hotspot/src/os/linux/vm/os_linux.cpp:673<br>
673
/usr/src/debug/icedtea-3.4.0/openjdk/hotspot/src/os/linux/vm/os_linux.cpp:
No such file or directory.<br>
[Current thread is 1 (Thread 0x7ff2ab992b40
(LWP 2015))]<br>
Missing separate debuginfos, use: zypper
install
syslog-ng-debuginfo-3.10.1-2.3.x86_64<br>
(gdb) bt full<br>
#0 _expand_stack_to (bottom=0x7ffe43f70fff
"", bottom@entry=0x7ffe43f70990 "") at
/usr/src/debug/icedtea-3.4.0/openjdk/hotspot/src/os/linux/vm/os_linux.cpp:673<br>
sp = 0x7ffe43f7a120 ""<br>
size = 37153<br>
p = 0x7ffe43f70ff0 ""<br>
#1 0x00007ff2a5f6f184 in
os::Linux::manually_expand_stack
(t=t@entry=0x19e9000, addr=0x7ffe43f70990
"") at
/usr/src/debug/icedtea-3.4.0/openjdk/hotspot/src/os/linux/vm/os_linux.cpp:686<br>
mask_all = {__val =
{18446744067267100671, 18446744073709551615
<repeats 15 times>}}<br>
old_sigset = {__val =
{18446744067266838271, 140680142549761,
140730038723104, 140680138113208,
1140303776, 210453397503, 140730038723232,
140730038724512, 1, 27171840,
18446744073709551615, 4,
<br>
140730038723200,
140680140758410, 140730038723208,
18446744069414584320}}<br>
#2 0x00007ff2a5f77f7d in
JVM_handle_linux_signal (sig=11,
info=0x7ffe43f7a530, ucVoid=0x7ffe43f7a400,
abort_if_unrecognized=1)<br>
at
/usr/src/debug/icedtea-3.4.0/openjdk/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp:330<br>
addr = <optimized out><br>
uc = 0x7ffe43f7a400<br>
thread = 0x19e9000<br>
stub = 0x0<br>
newset = {__val = {0, 0,
18446744073709551615, 2, 27670976,
140679847562464, 3, 27171760, 27171728,
140679847562559, 140679847562515, 0,
140730038723488, 140680143714222, 3,
140730038724512}}<br>
err = {<StackObj> = {<No
data fields>}, _id = 1, _message =
0x19e9c00 "", _detail_msg =
0xffffffffffffffff <error: Cannot access
memory at address 0xffffffffffffffff>,
_thread = 0x4,
<br>
_pc = 0x7ffe43f7a740
"\320\v\177\212\362\177", _siginfo =
0x7ff2a60051f8<br>
<SharedRuntime::generate_i2c2i_adapters(MacroAssembler*,
int, int, BasicType const*, VMRegPair
const*, AdapterFingerPrint*)+3464>,
_context = 0x3,
<br>
_filename = 0xffffffffffffffff
<error: Cannot access memory at address
0xffffffffffffffff>, _lineno = -1,
_current_step = 48,
<br>
_current_step_info =
0x7ff2a65619f0 <vtable for
Relocation+16> "\240<span
style="font-family:"Microsoft
JhengHei",sans-serif">栥</span>\362\177",
_verbose = 0, static first_error = 0x0,
static first_error_tid = -1, static
coredump_status = false,
<br>
static coredump_message = '\000'
<repeats 1999 times>, _size =
140680227341344, static out =
{<outputStream> = {<ResourceObj>
= {<No data fields>},
<br>
_vptr.outputStream =
0x7ff2a655fc50 <vtable for
fdStream+16>, _indentation = 0, _width =
80, _position = 0, _newlines = 0, _precount
= 0, _stamp = {_counter = 0}}, _fd = 1,
_need_close = false},
<br>
static log = {<outputStream>
= {<ResourceObj> = {<No data
fields>}, _vptr.outputStream =
0x7ff2a655fc50 <vtable for
fdStream+16>, _indentation = 0, _width =
80, _position = 0, _newlines = 0,
<br>
_precount = 0, _stamp =
{_counter = 0}}, _fd = -1, _need_close =
false}}<br>
t = 0x19e9000<br>
shm = {<StackObj> = {<No
data fields>}, _thread = 0x19e9000}<br>
vmthread = 0x0<br>
pc = <optimized out><br>
#3 0x00007ff2a5f6e3d8 in signalHandler
(sig=11, info=0x7ffe43f7a530,
uc=0x7ffe43f7a400) at
/usr/src/debug/icedtea-3.4.0/openjdk/hotspot/src/os/linux/vm/os_linux.cpp:4354<br>
orig_errno = 2<br>
#4 <signal handler called><br>
No symbol table info available.<br>
#5 0x00007ff29453dc26 in ?? ()<br>
No symbol table info available.<br>
#6 0x00007ffe43f7a990 in ?? ()<br>
No symbol table info available.<br>
#7 0x00007ff28a7d0d50 in ?? ()<br>
No symbol table info available.<br>
#8 0x00007ffe43f7a9d8 in ?? ()<br>
No symbol table info available.<br>
#9 0x00007ff28a892ff8 in ?? ()<br>
No symbol table info available.<br>
#10 0x0000000000000000 in ?? ()<br>
No symbol table info available.<br>
(gdb) <o:p></o:p></p>
<div>
<div>
<div>
<div>
<div>
<p class="MsoNormal"><br clear="all">
<o:p></o:p></p>
<div>
<div>
<div>
<div>
<div>
<p class="MsoNormal">Peter
Czanik (CzP) <<a
href="mailto:peter.czanik@balabit.com"
target="_blank"
moz-do-not-send="true">peter.czanik@balabit.com</a>><br>
Balabit / syslog-ng
upstream<br>
<a
href="https://www.balabit.com/blog/author/peterczanik/"
target="_blank"
moz-do-not-send="true">https://www.balabit.com/blog/author/peterczanik/</a><br>
<a
href="https://twitter.com/PCzanik"
target="_blank"
moz-do-not-send="true">https://twitter.com/PCzanik</a><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
</div>
</div>
<pre>______________________________________________________________________________<o:p></o:p></pre>
<pre>Member info: <a href="https://lists.balabit.hu/mailman/listinfo/syslog-ng" target="_blank" moz-do-not-send="true">https://lists.balabit.hu/mailman/listinfo/syslog-ng</a><o:p></o:p></pre>
<pre>Documentation: <a href="http://www.balabit.com/support/documentation/?product=syslog-ng" target="_blank" moz-do-not-send="true">http://www.balabit.com/support/documentation/?product=syslog-ng</a><o:p></o:p></pre>
<pre>FAQ: <a href="http://www.balabit.com/wiki/syslog-ng-faq" target="_blank" moz-do-not-send="true">http://www.balabit.com/wiki/syslog-ng-faq</a><o:p></o:p></pre>
<pre><o:p> </o:p></pre>
</blockquote>
<p><o:p> </o:p></p>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
______________________________________________________________________________<br>
Member info: <a
href="https://lists.balabit.hu/mailman/listinfo/syslog-ng"
target="_blank" moz-do-not-send="true">
https://lists.balabit.hu/mailman/listinfo/syslog-ng</a><br>
Documentation: <a
href="http://www.balabit.com/support/documentation/?product=syslog-ng"
target="_blank" moz-do-not-send="true">
http://www.balabit.com/support/documentation/?product=syslog-ng</a><br>
FAQ: <a
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<pre wrap="">______________________________________________________________________________
Member info: <a class="moz-txt-link-freetext" href="https://lists.balabit.hu/mailman/listinfo/syslog-ng">https://lists.balabit.hu/mailman/listinfo/syslog-ng</a>
Documentation: <a class="moz-txt-link-freetext" href="http://www.balabit.com/support/documentation/?product=syslog-ng">http://www.balabit.com/support/documentation/?product=syslog-ng</a>
FAQ: <a class="moz-txt-link-freetext" href="http://www.balabit.com/wiki/syslog-ng-faq">http://www.balabit.com/wiki/syslog-ng-faq</a>
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