https://bugzilla.balabit.com/show_bug.cgi?id=97 Summary: syslog-ng crashes after SIGHUP Product: syslog-ng Version: 3.0.x Platform: PC OS/Version: Linux Status: NEW Severity: normal Priority: unspecified Component: syslog-ng AssignedTo: bazsi@balabit.hu ReportedBy: zhengxiang.pan@alcatel-lucent.com Type of the Report: bug Estimated Hours: 0.0 Syslog-ng 3.0.6 crashes with following trace: Program terminated with signal 11, Segmentation fault. [New process 6311] #0 0x08063558 in log_source_group_queue (s=0x8ca6e00, msg=0x8caecc0, path_options=0xbfffaf18) at sgroup.c:98 98 (*self->processed_messages)++; (gdb) bt #0 0x08063558 in log_source_group_queue (s=0x8ca6e00, msg=0x8caecc0, path_options=0xbfffaf18) at sgroup.c:98 #1 0x08070580 in log_source_queue (s=0x8cadc78, msg=0x8caecc0, path_options=0xbfffaf74) at logpipe.h:121 #2 0x08063e80 in log_reader_fd_dispatch (source=0x8cadd10, callback=0, user_data=0x0) at logpipe.h:121 #3 0x08080081 in g_main_context_dispatch () #4 0x08083103 in g_main_context_iterate () #5 0x0808327f in g_main_context_iteration () #6 0x0804b52f in main_loop_run (cfg=0xbfffb0e8) at main.c:163 #7 0x0804bbcd in main (argc=147613904, argv=0xbfffb110) at main.c:443 The problem happens from version 3.0.6 ( I did not test other version lower than that) until the lastest 3.1.3. I guess what happens is that when SIGHUP is recevied, some connections are persisted, while the persistent connections points to the already-freed pipe (via pipe_next), if there are messages coming before the freed-pipes are replaced, the messages are forwarded to the freed-pipe handler. For version 3.1.3, in logpipe.c, log_pipe_forward_msg() may add check the pipe_next flags, however this may be not enough. log_pipe_forward_msg(LogPipe *self, LogMessage *msg, const LogPathOptions *path_options) { if (self->pipe_next && self->flags&PIF_INITIALIZED) { log_pipe_queue(self->pipe_next, msg, path_options); -- Configure bugmail: https://bugzilla.balabit.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching all bug changes.