"worker process XXXXX exited on signal 11" following freeBSD -> Ubuntu migration

[Sergey A. Osokin]

On Fri, Apr 30, 2010 at 03:22:20AM -0400, DaleMcGrew wrote:
> Any advice on tracking down the cause of "worker process XXXXX exited on signal 11" errors? Thank you in advance for your help.
> 
> We have been running NGINX 0.7.65 on freeBSD for a few months. Because of issues getting the fail-over to work properly, 1 week ago we migrated from freeBSD to Linux (Ubuntu) running version 0.7.65. In this first week, we saw perhaps 2 dozen "worker process XXXXX exited on signal 11" errors per hour and have been experiencing dropped web connections at a rate that seems to coincide with the "exited on signal 11" errors. We tried many different configuration changes, and finally this afternoon upgraded to 0.8.36. Unfortunately we continue to see the "worker process XXXXX exited on signal 11" errors.
> 
> Other possible factors: We have been using keepalived to verify that NGINX is accepting web traffic on port 80 every second.
> 
> This is our configuration file:
> [code]
  ... 
> [/code]

Could you provide

$ nginx -v 
$ uname -a

-- 
Sergey A. Osokin,
osa at FreeBSD.ORG
osa at FreeBSD.ORG.ru