[Serusers] Broken Pipe Error

Hi, When we need to dump register requests to a file, we use the following command inside ser.cfg: if (method=="REGISTER") { exec_msg("echo `date` - From: $SIP_HF_FROM To: $SIP_HF_TO Contact: $SIP_HF_CONTACT Src_IP: $SIP_SRCIP User_Agent: $SIP_HF_USER_AGENT >> /var/log/ser/ser_register.log"); }; The command executes just fine every time and generates the info in the flat file but the SYSLOG shows this error: Jan 4 16:40:35 wailea /usr/local/sbin/ser[15344]: ERROR: exec_msg: cmd echo `date` - From: $SIP_HF_FROM To: $SIP_HF_TO Contact: $SIP_HF_CONTACT Src_IP: $SIP_SRCIP User_Agent: $SIP_HF_USER_AGENT >> /var/log/ser/ser_register.log failed. exit_status=-1, errno=32: Broken pipe This error only appears on RH9.0. It does not appear under Solaris 2.8 or RH7.3. Any idea how we can fix this? Regards, Andres