On 3/22/18 11:12 AM, Bart Van Assche wrote: > On Thu, 2018-03-22 at 11:01 -0600, Jens Axboe wrote: >> Run it as a server: >> >> $ valgrind ./fio --server >> $ ./fio --client=localhost null.fio >> >> $ cat null.fio >> [null] >> bs=4k >> ioengine=null >> size=1g >> rw=read >> >> The above was supposed to say "fio server", but apparently I missed >> putting that in... > > If I run that test, Valgrind only reports the following on my laptop: > > ==17458== Conditional jump or move depends on uninitialised value(s) > ==17458== at 0x463FFD: __sk_out_drop (server.c:142) > ==17458== by 0x463FFD: handle_connection (server.c:1257) > ==17458== by 0x463FFD: accept_loop (server.c:1389) > ==17458== by 0x463FFD: fio_server (server.c:2468) > ==17458== by 0x464894: fio_start_server (server.c:2552) > ==17458== by 0x426F8E: parse_cmd_line (init.c:2880) > ==17458== by 0x427602: parse_options (init.c:2931) > ==17458== by 0x41134A: main (fio.c:42) > ==17458== > ==17458== Conditional jump or move depends on uninitialised value(s) > ==17458== at 0x46400F: __sk_out_drop (server.c:146) > ==17458== by 0x46400F: handle_connection (server.c:1257) > ==17458== by 0x46400F: accept_loop (server.c:1389) > ==17458== by 0x46400F: fio_server (server.c:2468) > ==17458== by 0x464894: fio_start_server (server.c:2552) > ==17458== by 0x426F8E: parse_cmd_line (init.c:2880) > ==17458== by 0x427602: parse_options (init.c:2931) > ==17458== by 0x41134A: main (fio.c:42) > > Where is the sk_out structure allocated? Can Valgrind know whether or not > that structure has been initialized? In server.c:accept_loop() and that structure is memset at alloc time as it's coming out of smalloc(). -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
