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...ovecot/libdovecot-storage.so.0(mailbox_get_status+0x5f) [0x1895bf] -> dovecot/imap(imap_status_get+0x7a) [0x806396a] -> dovecot/imap(cmd_status+0x128) [0x80588a8] -> dovecot/imap(command_exec+0x33) [0x805c8e3] -> dovecot/imap [0x805b63f] -> dovecot/imap [0x805b6c3] -> dovecot/imap(client_handl Fatal: master: service(imap): child 25461 killed with signal 6 (core dumps disabled) They are on hiatus, but thought I should report this anyway. If I get a reproducer, I'll see if I can get core dumps. The user involved had several procmail processes hung waiting for the lockfile on this mb...

The following two patches allow the parallel use of memsharing, xenpaging and xen-access by using an independent ring buffer for each feature. Please review. v2: - update mem_event_check_ring arguments, check domain rather than domain_id - check ring_full first because its value was just evaluated - check if ring buffer is initialized before calling mem_access_domctl/mem_paging_domctl

...ovecot/libdovecot-storage.so.0(mailbox_get_status+0x5f) [0x1895bf] -> dovecot/imap(imap_status_get+0x7a) [0x806396a] -> dovecot/imap(cmd_status+0x128) [0x80588a8] -> dovecot/imap(command_exec+0x33) [0x805c8e3] -> dovecot/imap [0x805b63f] -> dovecot/imap [0x805b6c3] -> dovecot/imap(client_handl Dec 17 18:06:22 overkill dovecot: imap(<user>): Fatal: master: service(imap): child 20063 killed with signal 6 (core dumped) Tracebacks in attached archive were generated with: > cd ~<user>; for C in core.*; do gdb /usr/local/libexec/dovecot/imap $C > -x gdb -q ; mv gdb.log gdb.$...