On 15/10/2024 01:04 EEST Sergej Pupykin via dovecot <dovecot@dovecot.org> wrote: Hello, I found similar reports in this ML with values less than mine but was not able to find the solution. I checked size of all dovecot.* files in /var/mail and it is less than 10Gb. Whole /var/mail dir is 1.8Tb. With vsz_limit it crashes much earlier, this log with 275GB produced by setting vsz_limit = 0 Server has 192GB of RAM, can it be some bug? Oct 14 15:51:59 mailserver dovecot[826177]: replicator: Panic: data stack: Out of memory when allocating 274877906984 bytes Oct 14 15:51:59 mailserver dovecot[826177]: replicator: Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x48) [0x76ac1505e188] -> /usr/lib/dovecot/libdovecot.so.0 (backtrace_get+0x25) [0x76ac1505e305] -> /usr/lib/dovecot/libdovecot.so.0(+0x106312) [0x76ac1506c312] -> /usr/lib/dovecot/libdovecot.so.0(+0x1063b5) [0x76ac1506c3b5] -> /usr/lib/dovecot/libdovecot.so.0(+0x4c571) [0x76ac14fb2571] -> /usr/lib/dovecot/libdovecot.so.0(+0x4bbc4) [0x76ac14fb1bc4] -> /usr/lib/dovecot/libdovecot.so.0(+0xfee30) [0x76ac15064e30] -> /usr/lib/dovecot/libdovecot.so.0(+0x1288c1) [0x76ac1508e8c1] -> /usr/lib/dovecot/libdovecot.so.0(+0xfa870) [0x76ac15060870] -> /usr/lib/dovecot/libdovecot.so.0(+0xfa8f1) [0x76ac150608f1] -> /usr/lib/dovecot/libdovecot.so.0 (buffer_append+0x60) [0x76ac15060c00] -> dovecot/replicator(replicator_queue_push+0x163) [0x58a11fac0a53] -> dovecot/replicator(+0x4e9d) [0x58a11fabfe9d] -> dovecot/replicator(+0x4ed8) [0x58a11fabfed8] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handle_timeouts+0x15f) [0x76ac1508381f] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xd6) [0x76ac15085296] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x58) [0x76ac15083ae8] -> /usr/lib/dovecot/libdovecot.so.0 (io_loop_run+0x49) [0x76ac15083ce9] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x20) [0x76ac14fed6a0] -> dovecot/replicator(main+0x1a5) [0x58a11fabe865] - > /usr/lib/libc.so.6(+0x25e08) [0x76ac14d90e08] -> /usr/lib/libc.so.6(__libc_start_main+0x8c) [0x76ac14d90ecc] -> dovecot/replicator(_start+0x25) [0x58a11fabe925] _______________________________________________ dovecot mailing list -- dovecot@dovecot.org To unsubscribe send an email to dovecot-leave@dovecot.org Can you try if https://github.com/dovecot/core/commit/ 9302c5746770f20e0c41da4e3e8a081cd8f7cec0 fixes your issue? Aki