<div dir="ltr"> Is it not creating a core file wherever your working_directory is currently set to? Whenever I see segfaults that's the second thing I'm looking for if there is nothing immediately obvious in the error logs. If you want full blown debugging support you'll likely need to rebuild nginx from source with that option enabled.</div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><b style="color:rgb(25,25,25)"><div style="color:rgb(0,0,0);font-weight:normal"><b style="color:rgb(25,25,25)"><font face="Lucida Grande" size="1"><div style="color:rgb(0,0,0);font-weight:normal"><br><table cellspacing="0" cellpadding="0" border="0" style="font-family:helvetica,sans-serif;font-size:12px"><tbody><tr><td width="90" style="text-align:center;border-right-width:1px;border-right-style:solid;border-right-color:rgb(186,186,186)"><img src="http://marketing.wdcdn.net/wp-content/themes/email_images/sigimg/wdpiclogob_4x.png" alt="userimage" width="65" style="padding-bottom:5px"></td><td style="padding-left:15px"><p style="margin:1pt;padding:0px;color:rgb(37,173,224)">Scott Larson<a href="https://www.google.com/maps/place/4216+Glencoe+Ave,+Marina+Del+Rey,+CA+90292/@33.9892151,-118.4421334,17z/data=!3m1!4b1!4m2!3m1!1s0x80c2ba88ffae914d:0x14e1d00084d4d09c" style="color:rgb(17,85,204)" target="_blank"><img src="http://marketing.wdcdn.net/wp-content/themes/email_images/sigimg/labadgeg_4x.png" alt="los angeles" width="13" style="margin:2px 0px 0px 4px"></a></p><p style="margin:1pt;padding:0px 0px 6px;color:rgb(37,173,224)">Lead Systems Administrator</p><a href="https://www.wiredrive.com/" style="color:rgb(17,85,204)" target="_blank"><img src="http://marketing.wdcdn.net/wp-content/themes/email_images/wdlogofooter_4x.png" alt="wdlogo" width="66" style="padding-left:2px;padding-right:2px"></a> <a href="https://www.linkedin.com/company/wiredrive" style="color:rgb(17,85,204)" target="_blank"><img src="http://marketing.wdcdn.net/wp-content/themes/email_images/sigimg/ic_in2_4x.png" alt="linkedin" width="13"></a> <a href="https://www.twitter.com/wiredrive" style="color:rgb(17,85,204)" target="_blank"><img src="http://marketing.wdcdn.net/wp-content/themes/email_images/sigimg/ic_tw_4x.png" alt="facebook" width="13"></a> <a href="https://www.facebook.com/wiredrive" style="color:rgb(17,85,204)" target="_blank"><img src="http://marketing.wdcdn.net/wp-content/themes/email_images/sigimg/ic_fb_4x.png" alt="twitter" width="13"></a> <a href="https://www.instagram.com/wiredrive" style="color:rgb(17,85,204)" target="_blank"><img src="http://marketing.wdcdn.net/wp-content/themes/email_images/sigimg/ic_ig_4x.png" alt="instagram" width="13"></a><p style="margin:1pt;padding:0px;color:rgb(158,158,158);font-size:11px">T <a href="tel:310%20823%208238%20x1106" value="+13108238238" style="color:rgb(17,85,204)" target="_blank">310 823 8238 x1106</a> | M <a href="tel:310%20904%208818" value="+13109048818" style="color:rgb(17,85,204)" target="_blank">310 904 8818</a></p></td></tr></tbody></table></div><div style="color:rgb(0,0,0);font-weight:normal"><div style="margin:0px"><div style="margin:0px"><font color="#007EFD"><span style="color:rgb(0,0,0)"><div style="margin:0px"><font color="#2498FC"><span style="color:rgb(0,0,0)"><div style="margin:0px;color:rgb(120,120,120)"><div style="margin:0px"><font color="#2498FC"></font></div></div></span></font></div></span></font></div></div></div></font></b></div></b></div></div></div></div></div>
<br><div class="gmail_quote">On Mon, Sep 21, 2015 at 12:23 PM, Ricardo Aravena <span dir="ltr"><<a href="mailto:ricardo.aravena@coupa.com" target="_blank">ricardo.aravena@coupa.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Thanks guys.<div><br></div><div>Is there something in the nginx configs that will allow us to see more logs ? Like for example get a traceback of the error.</div><div><br></div><div>Cheers,</div><div>Ricardo</div><div><br></div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Sep 21, 2015 at 1:49 PM, Scott Larson <span dir="ltr"><<a href="mailto:stl@wiredrive.com" target="_blank">stl@wiredrive.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"> The mod_security module for nginx does require libapr-1.</div><div class="gmail_extra"><br clear="all"><div><div><div dir="ltr"><div><div dir="ltr"><b style="color:rgb(25,25,25)"><div style="color:rgb(0,0,0);font-weight:normal"><b style="color:rgb(25,25,25)"><font face="Lucida Grande" size="1"><div style="color:rgb(0,0,0);font-weight:normal"><br><table cellspacing="0" cellpadding="0" border="0" style="font-family:helvetica,sans-serif;font-size:12px"><tbody><tr><td width="90" style="text-align:center;border-right-width:1px;border-right-style:solid;border-right-color:rgb(186,186,186)"><img src="http://marketing.wdcdn.net/wp-content/themes/email_images/sigimg/wdpiclogob_4x.png" alt="userimage" width="65" style="padding-bottom:5px"></td><td style="padding-left:15px"><p style="margin:1pt;padding:0px;color:rgb(37,173,224)">Scott Larson<a href="https://www.google.com/maps/place/4216+Glencoe+Ave,+Marina+Del+Rey,+CA+90292/@33.9892151,-118.4421334,17z/data=!3m1!4b1!4m2!3m1!1s0x80c2ba88ffae914d:0x14e1d00084d4d09c" style="color:rgb(17,85,204)" target="_blank"><img src="http://marketing.wdcdn.net/wp-content/themes/email_images/sigimg/labadgeg_4x.png" alt="los angeles" width="13" style="margin:2px 0px 0px 4px"></a></p><p style="margin:1pt;padding:0px 0px 6px;color:rgb(37,173,224)">Lead Systems Administrator</p><a href="https://www.wiredrive.com/" style="color:rgb(17,85,204)" target="_blank"><img src="http://marketing.wdcdn.net/wp-content/themes/email_images/wdlogofooter_4x.png" alt="wdlogo" width="66" style="padding-left:2px;padding-right:2px"></a> <a href="https://www.linkedin.com/company/wiredrive" style="color:rgb(17,85,204)" target="_blank"><img src="http://marketing.wdcdn.net/wp-content/themes/email_images/sigimg/ic_in2_4x.png" alt="linkedin" width="13"></a> <a href="https://www.twitter.com/wiredrive" style="color:rgb(17,85,204)" target="_blank"><img src="http://marketing.wdcdn.net/wp-content/themes/email_images/sigimg/ic_tw_4x.png" alt="facebook" width="13"></a> <a href="https://www.facebook.com/wiredrive" style="color:rgb(17,85,204)" target="_blank"><img src="http://marketing.wdcdn.net/wp-content/themes/email_images/sigimg/ic_fb_4x.png" alt="twitter" width="13"></a> <a href="https://www.instagram.com/wiredrive" style="color:rgb(17,85,204)" target="_blank"><img src="http://marketing.wdcdn.net/wp-content/themes/email_images/sigimg/ic_ig_4x.png" alt="instagram" width="13"></a><p style="margin:1pt;padding:0px;color:rgb(158,158,158);font-size:11px">T <a href="tel:310%20823%208238%20x1106" value="+13108238238" style="color:rgb(17,85,204)" target="_blank">310 823 8238 x1106</a> | M <a href="tel:310%20904%208818" value="+13109048818" style="color:rgb(17,85,204)" target="_blank">310 904 8818</a></p></td></tr></tbody></table></div><div style="color:rgb(0,0,0);font-weight:normal"><div style="margin:0px"><div style="margin:0px"><font color="#007EFD"><span style="color:rgb(0,0,0)"><div style="margin:0px"><font color="#2498FC"><span style="color:rgb(0,0,0)"><div style="margin:0px;color:rgb(120,120,120)"><div style="margin:0px"><font color="#2498FC"></font></div></div></span></font></div></span></font></div></div></div></font></b></div></b></div></div></div></div></div>
<br><div class="gmail_quote"><div><div>On Mon, Sep 21, 2015 at 11:42 AM, Frederik Nosi <span dir="ltr"><<a href="mailto:frederik.nosi@postecom.it" target="_blank">frederik.nosi@postecom.it</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div>
<div text="#000000" bgcolor="#FFFFFF">
<div>Hi,<br>
<br>
On 09/21/2015 08:32 PM, Ricardo Aravena wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi Folks,
<div><br>
</div>
<div>I was wondering of somebody could shed some light on this
issue that we are experiencing.</div>
<div><br>
</div>
<div>
<div>nginx[22490]: segfault at 10 ip 000000376e616a11 sp
00007ffed9493690 error 4 in
libapr-1.so.0.3.9[376e600000+2b000]</div>
<div>nginx[22584]: segfault at 10 ip 000000376e616a11 sp
00007ffed9493640 error 4 in
libapr-1.so.0.3.9[376e600000+2b000]</div>
<div>nginx[22582]: segfault at 10 ip 000000376e616a11 sp
00007ffed9493640 error 4 in
libapr-1.so.0.3.9[376e600000+2b000]</div>
<div>nginx[22707]: segfault at 10 ip 000000376e616a11 sp
00007ffed9493690 error 4 in
libapr-1.so.0.3.9[376e600000+2b000]</div>
<div>nginx[22583]: segfault at 10 ip 000000376e616a11 sp
00007ffed9493640 error 4 in
libapr-1.so.0.3.9[376e600000+2b000]</div>
<div>nginx[22806]: segfault at 10 ip 000000376e616a11 sp
00007ffed9493640 error 4 in
libapr-1.so.0.3.9[376e600000+2b000]</div>
<div>nginx[22741]: segfault at 10 ip 000000376e616a11 sp
00007ffed9493640 error 4 in
libapr-1.so.0.3.9[376e600000+2b000]</div>
<div>nginx[22862]: segfault at 10 ip 000000376e616a11 sp
00007ffed9493690 error 4 in
libapr-1.so.0.3.9[376e600000+2b000]</div>
<div>nginx[22866]: segfault at 10 ip 000000376e616a11 sp
00007ffed9493640 error 4 in
libapr-1.so.0.3.9[376e600000+2b000]</div>
<div>nginx[22770]: segfault at 10 ip 000000376e616a11 sp
00007ffed9493640 error 4 in
libapr-1.so.0.3.9[376e600000+2b000]</div>
<div>nginx[22518]: segfault at 10 ip 000000376e616a11 sp
00007ffed9493640 error 4 in
libapr-1.so.0.3.9[376e600000+2b000]</div>
<div>nginx[22896]: segfault at 10 ip 000000376e616a11 sp
00007ffed9493640 error 4 in
libapr-1.so.0.3.9[376e600000+2b000]</div>
<div><br>
</div>
<div>Basically, the nginx workers are crashing intermittently
causing our application no server requests. We are using
nginx with mod_security and mod_passenger. Apparently, this
may be related to mod_security but can somebody shed some
light as to how to solve it ? Is there a fix in the nginx
code base or mod_security code base ?</div>
<div><br>
</div>
</div>
</div>
</blockquote>
<br>
This seems strage, as nginx does not use libapr. Being libapr an
Apache library, maybe you're using an mod_security or mod_passenger
built for apache instead of the nginx one?<br>
<br>
<br>
<br>
<blockquote type="cite">
<div dir="ltr">
<div>
<div>Thanks,</div>
<div>Ricardo</div>
<div><br><span><font color="#888888">
</font></span></div><span><font color="#888888">
<div><br>
</div>
-- <br>
<div>
<div dir="ltr">
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</blockquote>
<br>
</div>
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