I think here should be a join

[zyf224]

ethminer/libethcore/Farm.h

Line 181 in 81ad571

I got a crash during reconnection for 0.14.0.dev4:

  m  10:41:31|ethminer|  Speed 176.60 Mh/s    gpu/0 22.63  gpu/1 22.54  gpu/2 22.81  gpu/3 20.97  gpu/4 22.11  gpu/5 20.88  gpu/6 22.46  gpu/7 22.19  [A5+0:R0+0:F0] Time: 00:12
  m  10:41:36|ethminer|  Speed 176.51 Mh/s    gpu/0 22.63  gpu/1 22.54  gpu/2 22.81  gpu/3 20.97  gpu/4 22.11  gpu/5 20.88  gpu/6 22.37  gpu/7 22.19  [A5+0:R0+0:F0] Time: 00:12
  ✘  10:41:39|stratum |  No new work received in 20  seconds.
  ℹ  10:41:39|stratum |  Disconnected from ether.bw.com
  ℹ  10:41:39|stratum |  Shutting down miners...
  m  10:41:41|ethminer|  not-connected
  m  10:41:46|ethminer|  not-connected
  m  10:41:51|ethminer|  not-connected
  ℹ  10:41:54|stratum |  Retrying in 3 ... 
*** Error in `./ethminer/ethminer': free(): invalid pointer: 0x00007f70fc000088 ***
======= Backtrace: =========
/lib64/libc.so.6(+0x7c503)[0x7f71294e9503]
./ethminer/ethminer(_ZNSt6vectorIN3dev3eth15WorkingProgressESaIS2_EE5eraseEN9__gnu_cxx17__normal_iteratorIPS2_S4_EE+0xed)[0x59375d]
./ethminer/ethminer(_ZN3dev3eth4Farm15collectHashRateEv+0x1ed)[0x59939d]
./ethminer/ethminer(_ZN3dev3eth4Farm15processHashRateERKN5boost6system10error_codeE+0x20)[0x59c2c0]
./ethminer/ethminer(_ZN5boost4asio6detail12wait_handlerINS_3_bi6bind_tIvNS_4_mfi3mf1IvN3dev3eth4FarmERKNS_6system10error_codeEEENS3_5list2INS3_5valueIPS9_EEPFNS_3argILi1EEEvEEEEEE11do_completeEPvPNS1_19scheduler_operationESD_m+0xa5)[0x58f5e5]
./ethminer/ethminer(_ZN5boost4asio6detail9scheduler3runERNS_6system10error_codeE+0x414)[0x593154]
./ethminer/ethminer(_ZN5boost4asio10io_context3runEv+0x25)[0x597a95]
/lib64/libstdc++.so.6(+0xb5230)[0x7f7129dfb230]
/lib64/libpthread.so.0(+0x7dc5)[0x7f712a056dc5]
/lib64/libc.so.6(clone+0x6d)[0x7f712956476d]

It seems that the thread of collecting hash rate is still running during reconnecting.

[AndreaLanfranchi]

Addressed in #1135