From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yehuda Sadeh-Weinraub Subject: Re: radosgw crash within libfcgi Date: Wed, 24 Jun 2015 14:40:25 -0400 (EDT) Message-ID: <460832233.19349487.1435171225932.JavaMail.zimbra@redhat.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mx3-phx2.redhat.com ([209.132.183.24]:59957 "EHLO mx3-phx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752443AbbFXSk2 convert rfc822-to-8bit (ORCPT ); Wed, 24 Jun 2015 14:40:28 -0400 In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: GuangYang Cc: ceph-devel@vger.kernel.org, ceph-users@lists.ceph.com ----- Original Message ----- > From: "GuangYang" > To: ceph-devel@vger.kernel.org, ceph-users@lists.ceph.com, yehuda@red= hat.com > Sent: Wednesday, June 24, 2015 10:09:58 AM > Subject: radosgw crash within libfcgi >=20 > Hello Cephers, > Recently we have several radosgw daemon crashes with the same followi= ng > kernel log: >=20 > Jun 23 14:17:38 xxx kernel: radosgw[68180]: segfault at f0 ip > 00007ffa069996f2 sp 00007ff55c432710 error 6 in > libfcgi.so.0.0.0[7ffa06995000+a000] in libfcgi.so.0.0.0[7ffa06995000+= a000] >=20 > Looking at the assembly, it seems crashing at this point - > http://github.com/sknown/fcgi/blob/master/libfcgi/fcgiapp.c#L2035, wh= ich > confused me. I tried to see if there is any other reference holding t= he > FCGX_Request which release the handle without any luck. >=20 > There are also other observations: > =C2=A01> Several radosgw daemon across different hosts crashed around= the same > =C2=A0time. > =C2=A02> Apache's error log has some fcgi error complaining ##idle ti= meout## > =C2=A0during the time. >=20 > Does anyone experience similar issue? >=20 In the past we've had issues with libfcgi that were related to the numb= er of open fds on the process (> 1024). The issue was a buggy libfcgi t= hat was using select() instead of poll(), so this might be the issue yo= u're noticing. Yehuda -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html