Those are from 2013 and 2014, could be present if the OS is really old, but I believe Steve is running centos7.
-----Original Message----- From: Noriyuki Hayashi [mailto:[email protected]] Sent: Friday, June 10, 2016 9:23 AM To: [email protected] Subject: Re: [qmailtoaster] vchkpw segfaults and spamdyke errors Hi, I found some Bug 986427 - segfault error 4 at libc-2.17.so https://bugzilla.redhat.com/show_bug.cgi?id=986427 http://lists.arthurdejong.org/nss-pam-ldapd-users/2014/msg00136.html Does libc-2.17.so has bug? Regards, Nori On Mon, 6 Jun 2016 11:12:08 -0400 Steve Linberg <[email protected]> wrote: > Greetings all. > > Overall, my new toaster build is working great; however, combing the > logs, I still see a couple of issues I’d like to get to the bottom of. > (CentOS 7.2, built the toaster a couple of weeks ago.) > > The first is that I’m still getting a ton of segfaults from vchkpw, even having raised the softlimit in /var/qmail/supervise/submission/run from the default of 64000000 to 100000000, 128000000 and even 160000000. I sometimes have 20 or more in a row in my logs: > > Jun 6 08:43:18 xxx kernel: vchkpw[25196]: segfault at 0 ip > 00007fca89bdbad6 sp 00007ffda62cef98 error 4 in > libc-2.17.so[7fca89aa9000+1b7000] Jun 6 08:43:21 xxx kernel: > vchkpw[25200]: segfault at 0 ip 00007f2dd9f91ad6 sp 00007ffc754d7b58 > error 4 in libc-2.17.so[7f2dd9e5f000+1b7000] Jun 6 08:43:23 xxx > kernel: vchkpw[25204]: segfault at 0 ip 00007feb85bf8ad6 sp > 00007ffe1ad395c8 error 4 in libc-2.17.so[7feb85ac6000+1b7000] > > That said, I’m able to send / receive mail and log in to my imap system without any problems, so I suspect these are triggered by login attempts from someone else, but segfaults aren’t something I’m used to being comfortable with, and I’m not even sure where to begin troubleshooting this. Googling this hasn’t gotten me far. It may be a CentOS issue and not a toaster issue, but it’s still a bit unnerving. Is there anything else in the toaster config that I can look at or that might cause this? > > The second is hundreds of error messages from spamdyke in /var/log/maillog: > > Jun 6 10:56:32 xxx spamdyke[30667]: ERROR: invalid/unparsable > nameserver found: 2001:4860:4860::8844 Jun 6 10:56:32 xxx > spamdyke[30667]: ERROR: invalid/unparsable nameserver found: > 2001:4860:4860::8888 > > These are constant, and always with those addresses, which I’m 99% sure are Google’s DNS servers in ipv6. I’m not actively using ipv6, and my first thought was to just turn it off (in /etc/sysctl.conf), but even after a reboot, I was still getting these messages, over and over in /var/log/maillog. > > Does anybody have any ideas on either of these issues? Thanks in advance. > > -- > Steve Linberg, Chief Goblin > Silicon Goblin Technologies > http://silicongoblin.com > Be kind. Remember, everyone you meet is fighting a hard battle. > /_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/ Telecommunications Association License No. A-18-9191 Government Resell License No. 301039703002 WATS CO.,LTD. Kawana Bldg, 5F Kamata Ota-ku Tokyo, 144-0052 JAPAN Phone 81-50-5830-5940 Ext&Mobile：201 VoiceMailDirect：201*1 FAX 81-50-5830-5941 http://wats.gr.jp Mail： wats @ wats.gr.jp Please remove the space between @ as double side Key fingerprint = B53D FF2F BFEA FDA8 1439 38AA 8281 9A3E C9B6 2FC9 /_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/ --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
