Hi there, Thanks for the bug report. You're quite right - it looks like the handling for Hyperscan scratch regions is not safe when the config is being reloaded by the reload thread. I will look into this further and fix it in a new version of the Hyperscan Snort patch. Best regards, Justin From: Hyperscan [mailto:hyperscan-bounces@lists.01.org] On Behalf Of ???? Sent: Thursday, December 22, 2016 5:18 PM To: hyperscan <hyperscan(a)lists.01.org&gt; Subject: [Hyperscan] Hyperscan snort patch : snort-2982-hyperscan-v2.tar.gz hello, I am trying to build Snort2.9.8.2 with Hyperscan patch,and snort with hyerscan works fine for the first time; Howerver, when I send a SIGHUP SIGNAL to restart snort's process,the process will reload its config(snort.conf) and report a error: $ killall -1 snort snort output: [ Port Based Pattern Matching Memory ] +--[ Intel Hyperscan Summary ]-------------------------------- | Hyperscan version : 4.3.0 2016-12-02 | Number of databases : 470 | Memory (MB) : 5.72 | Scratch (KB) : 5.12 +------------------------------------------------------------- Session Reload: Reference Count Non-zero for old configuration. --== Reload Complete ==-- ERROR: hs_scan() failed: error -1 Fatal Error, Quitting.. I got stuck in this error,maybe I miss something? Thanks in advance for your help!