Hi! After upgrade I'm noticing many coredummps, below is backtrace: $ echo "bt"|gdb ....
#0 o_stream_zlib_flush (stream=0xc8be5b27640) at ostream-zlib.c:222 222 if (o_stream_zlib_send_flush(zstream) < 0) (gdb) #0 o_stream_zlib_flush (stream=0xc8be5b27640) at ostream-zlib.c:222 #1 0x00007a695e8f09cd in o_stream_flush (stream=stream@entry=0xc8be5b276d0) at ostream.c:147 #2 0x00007a695e83c06f in o_stream_zlib_close (stream=0xc8be5b27640, close_parent=true) at ostream-zlib.c:35 #3 0x00007a695e8f0375 in o_stream_close_full (stream=stream@entry=0xc8be5b276d0, close_parents=close_parents@entry=true) at ostream.c:49 #4 0x00007a695e8f06e2 in o_stream_close (stream=stream@entry=0xc8be5b276d0) at ostream.c:85 #5 0x00007a695e8f1738 in o_stream_copy_error_from_parent (_stream=_stream@entry=0xc8be5b27640) at ostream.c:434 #6 0x00007a695e83c5cc in o_stream_zlib_flush (stream=0xc8be5b27640) at ostream-zlib.c:227 #7 0x00007a695e8f09cd in o_stream_flush (stream=stream@entry=0xc8be5b276d0) at ostream.c:147 #8 0x00007a695e83c06f in o_stream_zlib_close (stream=0xc8be5b27640, close_parent=true) at ostream-zlib.c:35 #9 0x00007a695e8f0375 in o_stream_close_full (stream=stream@entry=0xc8be5b276d0, close_parents=close_parents@entry=true) at ostream.c:49 #10 0x00007a695e8f06e2 in o_stream_close (stream=stream@entry=0xc8be5b276d0) at ostream.c:85 #11 0x00007a695e8f1738 in o_stream_copy_error_from_parent (_stream=_stream@entry=0xc8be5b27640) at ostream.c:434 #12 0x00007a695e83c5cc in o_stream_zlib_flush (stream=0xc8be5b27640) at ostream-zlib.c:227 #13 0x00007a695e8f09cd in o_stream_flush (stream=stream@entry=0xc8be5b276d0) at ostream.c:147 #14 0x00007a695e83c06f in o_stream_zlib_close (stream=0xc8be5b27640, close_parent=true) at ostream-zlib.c:35 #15 0x00007a695e8f0375 in o_stream_close_full (stream=stream@entry=0xc8be5b276d0, close_parents=close_parents@entry=true) at ostream.c:49 #16 0x00007a695e8f06e2 in o_stream_close (stream=stream@entry=0xc8be5b276d0) at ostream.c:85 #17 0x00007a695e8f1738 in o_stream_copy_error_from_parent (_stream=_stream@entry=0xc8be5b27640) at ostream.c:434 #18 0x00007a695e83c5cc in o_stream_zlib_flush (stream=0xc8be5b27640) at ostream-zlib.c:227 #19 0x00007a695e8f09cd in o_stream_flush (stream=stream@entry=0xc8be5b276d0) at ostream.c:147 #20 0x00007a695e83c06f in o_stream_zlib_close (stream=0xc8be5b27640, close_parent=true) at ostream-zlib.c:35 #21 0x00007a695e8f0375 in o_stream_close_full (stream=stream@entry=0xc8be5b276d0, close_parents=close_parents@entry=true) at ostream.c:49 #22 0x00007a695e8f06e2 in o_stream_close (stream=stream@entry=0xc8be5b276d0) at ostream.c:85 #23 0x00007a695e8f1738 in o_stream_copy_error_from_parent (_stream=_stream@entry=0xc8be5b27640) at ostream.c:434 #24 0x00007a695e83c5cc in o_stream_zlib_flush (stream=0xc8be5b27640) at ostream-zlib.c:227 #25 0x00007a695e8f09cd in o_stream_flush (stream=stream@entry=0xc8be5b276d0) at ostream.c:147 #26 0x00007a695e83c06f in o_stream_zlib_close (stream=0xc8be5b27640, close_parent=true) at ostream-zlib.c:35
[...]
#285878 0x00007a695e8f0adc in o_stream_default_cork
(_stream=0xc8be5b27640, set=<optimized out>) at ostream.c:419
#285879 o_stream_default_cork (_stream=0xc8be5b27640, set=<optimized
out>) at ostream.c:412
#285880 0x00000c8be506b72d in client_input (client=0xc8be5b07b00) at
imap-client.c:945
#285881 0x00007a695e8e4867 in io_loop_call_io (io=0xc8be5b8f370) at
ioloop.c:387
#285882 0x00007a695e8e5d1f in io_loop_handler_run
(ioloop=ioloop@entry=0xc8be5ab50f0) at ioloop-epoll.c:220
#285883 0x00007a695e8e4178 in io_loop_run (ioloop=0xc8be5ab50f0) at
ioloop.c:411
#285884 0x00007a695e87a847 in master_service_run (service=0xc8be5ab4f80,
callback=callback@entry=0xc8be5077f20
And gdb is killing by OOM. I suspect this can be related to imapc.
Regards, Marcin