Hi, postfix that comes with SuSE 9.1 crashes on x86_64 platforms in smtp and qmgr processes. The kernel log shows: qmgr[2654]: segfault at 0000000000000000 rip 000000000042351a rsp 0000007fbffff250 error 4 smtp[2542]: segfault at 0000000000000000 rip 000000000042d14a rsp 0000007fbffff550 error 4 These entries are flooding my logs (several per second!!) and mail is not delivered properly! attaching gdb to the running processes shows: for smtp: Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 182912014688 (LWP 2548)] 0x000000000042d14a in vbuf_print () #0 0x000000000042d14a in vbuf_print () #1 0x0000000000429d3c in vstring_vsprintf () #2 0x000000000040e354 in vlog_adhoc () #3 0x000000000040c355 in vbounce_append () #4 0x000000000040a1e9 in smtp_rcpt_fail () #5 0x00000000004082b8 in smtp_xfer () #6 0x0000000000406d0d in smtp_connect () #7 0x0000000000405e95 in deliver_message () #8 0x0000000000405ef1 in smtp_service () #9 0x000000000040b26d in single_server_wakeup () #10 0x000000000040b390 in single_server_accept_local () #11 0x0000000000422d1b in event_loop () #12 0x000000000040bd69 in single_server_main () #13 0x000000000040608c in main () for qmgr: Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 182912014592 (LWP 3113)] 0x000000000042351a in vbuf_print () It seems vbuf_print is not fully 64bit compatible. Has somebody a fix for it or am I the one to do it? Deti