<div dir="ltr">Application logs showed this to be due to an OOM error, so no need to chase this further. Thanks for the quick response!<div> </div><div>Jeff</div></div><div class="gmail_extra"> <div><div class="gmail_signature"><div dir="ltr">Jeff Hallyburton Strategic Systems Engineer Bloomip Inc. Web: <a href="http://www.bloomip.com/" style="color:rgb(17,85,204)" target="_blank">http://www.bloomip.com</a> Engineering Support: <a href="mailto:support@bloomip.com" style="color:rgb(17,85,204)" target="_blank">support@bloomip.com</a> Billing Support: <a href="mailto:billing@bloomip.com" style="color:rgb(17,85,204)" target="_blank">billing@bloomip.com</a> Customer Support Portal: <a href="http://my.bloomip.com/" style="color:rgb(17,85,204)" target="_blank">https://my.bloomip.com</a> </div></div></div> <div class="gmail_quote">On Thu, Jan 28, 2016 at 6:22 PM, Lukas Slebodnik <<a href="mailto:lslebodn@redhat.com" target="_blank">lslebodn@redhat.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On (28/01/16 16:25), Jeff Hallyburton wrote: >We saw the following happen on a system today, and wanted to follow up: > >System became unresponsive to ssh logins with the error: > >ssh -v incentives01 > //snip ># cat /var/log/sssd/sssd.log > >(Thu Jan 28 20:15:56 2016) [sssd] [mt_svc_sigkill] (0x0010): [<a href="http://enervee.com" rel="noreferrer" target="_blank">enervee.com</a>][620] >is not responding to SIGTERM. Sending SIGKILL. > >(Thu Jan 28 20:16:27 2016) [sssd] [talloc_log_fn] (0x0010): talloc: access >after free error - first free may be at src/monitor/monitor.c:2760 > > >(Thu Jan 28 20:16:27 2016) [sssd] [talloc_log_fn] (0x0010): Bad talloc >magic value - access after free > There was a crash in sssd. It might explain why you cannot login. Which version of sssd do you have? LS </blockquote></div> </div>