I downloaded a snapshot from: http://git.balabit.hu/?p=bazsi/syslog-ng-2.0.git;a=snapshot;h=a33ee30c1e059c.... It compiled ok, but gets a segmentation fault when initializing (it can display version and help info), but if I run with my cfg file it dies. Here's the last part of strace when i run it: open("/opt/syslog-ng-2.0.git/var/syslog-ng.persist", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory) socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 3 fcntl64(3, F_GETFL) = 0x2 (flags O_RDWR) fcntl64(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 fcntl64(3, F_GETFD) = 0 fcntl64(3, F_SETFD, FD_CLOEXEC) = 0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 bind(3, {sa_family=AF_INET, sin_port=htons(514), sin_addr=inet_addr("0.0.0.0")}, 16) = 0 listen(3, 255) = 0 setsockopt(3, SOL_SOCKET, SO_KEEPALIVE, [0], 4) = 0 --- SIGSEGV (Segmentation fault) @ 0 (0) --- kill(31071, SIGSEGV) = 0 sigreturn() = ? (mask now []) --- SIGSEGV (Segmentation fault) @ 0 (0) --- +++ killed by SIGSEGV +++ Process 31071 detached The new 2.0.6 release runs fine on the same machine, but I may have done something wrong when I built the snapshot? To compile, I manually copied config.h.in, configure and install-sh from the 2.0.6 release to the base of the snapshot tree. After that, I ran: $ aclocal $ automake --add-missing $ ./configure --prefix=/opt/syslog-ng-2.0.git && make install // Martin ---------------------------------------------------------------------------------------------------------------------------- On Dec 1, 2007 5:15 PM, Balazs Scheidler <bazsi@balabit.hu> wrote: Thanks for the detailed explanation. I indeed forgot to save and restore some data buffers accross reloads. The patch is risky somewhat, so I did not apply it to the mainline yet. I performed some limited testing on my development laptop, I've made syslog-ng delay output on destination files, sent a couple of messages to it, sent a SIGHUP, some more messages, and it seems to write all buffered messages to the configured destination nicely. I've also checked for two cases of possible memory leaks, and syslog-ng freed what it had to free. I'd appreciate some additional testing. If there's an ACK from you, I apply the patch to mainline, where it can sit till the next release. The patch is attached to this mail, but I've also pushed it to git.balabit.hu, "remember-dw-file" branch.