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"Pool 0 is hiding block contents from us" and "Pool 0 is sending mismatched block contents to us"
Hello all,
First, I'm a n00b, please pardon me in advance if I'm doing something wrong.
I'm using MacMiner to try and mine Bitcoin, just to see how this whole thing works.
I believe I've configured everything properly to use the GPU miner. The connection, authentication, and authorization with the pool appears to be fine. ("Stratum authorisation success for pool 0")
However, then I start getting these kind of messages:
[2017-08-04 17:18:20] Pool 0 is hiding block contents from us [2017-08-04 17:18:20] Pool 0 is sending mismatched block contents to us (0 is not 2048-4095)
Running the miner for the entire night, not a single fractional coin was mined.
Any idea how I can fix these messages?
The full logs are pasted below; I believe I've removed any sensitive information.
Thanks in advance!
Starting… [2017-08-04 17:17:57] Started bfgminer 5.4.2-unknown [2017-08-04 17:17:57] Started bfgminer 5.4.2-unknown [2017-08-04 17:17:57] Loaded configuration file /Users/CENSORED/Library/Application Support/MacMiner/bfgurls.conf [2017-08-04 17:17:57] Loaded configuration file /Users/CENSORED/Library/Application Support/MacMiner/bfgurls.conf [2017-08-04 17:17:57] CL Platform 0 vendor: Apple [2017-08-04 17:17:57] CL Platform 0 name: Apple [2017-08-04 17:17:57] CL Platform 0 version: OpenCL 1.2 (Apr 4 2017 21:42:51) [2017-08-04 17:17:57] Platform 0 devices: 2 [2017-08-04 17:17:57] 0 Iris Pro [2017-08-04 17:17:57] 1 AMD Radeon R9 M370X Compute Engine [2017-08-04 17:17:57] Unable to load ati adl library [2017-08-04 17:17:57] Probing for an alive pool [2017-08-04 17:17:57] Probing for an alive pool [2017-08-04 17:17:57] Testing pool stratum+tcp://CENSORED.com:3333 [2017-08-04 17:17:57] Stratum authorisation success for pool 0 [2017-08-04 17:17:57] Pool 0 stratum+tcp://CENSORED.com:3333 alive [2017-08-04 17:17:57] Pool 0 stratum+tcp://CENSORED.com:3333 alive [2017-08-04 17:17:57] Network difficulty changed to 226G ( 1.61E) [2017-08-04 17:17:57] Network difficulty changed to 226G ( 1.61E) [2017-08-04 17:17:57] New block: ...75a920c03f0a8083 diff 226G ( 1.61E) [2017-08-04 17:17:57] Stratum from pool 0 detected new block [2017-08-04 17:17:57] Stratum from pool 0 detected new block [2017-08-04 17:17:57] Pool 0 is sending mismatched block contents to us (0 is not 2048-4095) [2017-08-04 17:17:57] Pool 0 is sending mismatched block contents to us (0 is not 2048-4095) [2017-08-04 17:17:58] Init GPU thread 0 GPU 0 virtual GPU 0 [2017-08-04 17:17:58] CL Platform vendor: Apple [2017-08-04 17:17:58] CL Platform name: Apple [2017-08-04 17:17:58] CL Platform version: OpenCL 1.2 (Apr 4 2017 21:42:51) [2017-08-04 17:17:58] List of devices: [2017-08-04 17:17:58] 0 Iris Pro [2017-08-04 17:17:58] 1 AMD Radeon R9 M370X Compute Engine [2017-08-04 17:17:58] Selected 0: Iris Pro [2017-08-04 17:17:58] initCl() finished. Found Iris Pro [2017-08-04 17:17:58] Init GPU thread 1 GPU 1 virtual GPU 1 [2017-08-04 17:17:58] CL Platform vendor: Apple [2017-08-04 17:17:58] CL Platform name: Apple [2017-08-04 17:17:58] CL Platform version: OpenCL 1.2 (Apr 4 2017 21:42:51) [2017-08-04 17:17:58] List of devices: [2017-08-04 17:17:58] 0 Iris Pro [2017-08-04 17:17:58] 1 AMD Radeon R9 M370X Compute Engine [2017-08-04 17:17:58] Selected 1: AMD Radeon R9 M370X Compute Engine [2017-08-04 17:17:58] initCl() finished. Found AMD Radeon R9 M370X Compute Engine [2017-08-04 17:17:58] API running in IP access mode on port 4052 [2017-08-04 17:17:58] API running in IP access mode on port 4052 [2017-08-04 17:17:58] Selecting poclbm kernel [2017-08-04 17:17:58] Selecting poclbm kernel [2017-08-04 17:17:58] Error -30: Clearing output buffer for goffset test kernel (clEnqueueWriteBuffer) [2017-08-04 17:17:58] Error -30: Clearing output buffer for goffset test kernel (clEnqueueWriteBuffer) [2017-08-04 17:17:58] Error -30: Clearing output buffer for goffset test kernel (clEnqueueWriteBuffer) [2017-08-04 17:17:58] Error -30: Clearing output buffer for goffset test kernel (clEnqueueWriteBuffer) [2017-08-04 17:17:58] Initialising kernel poclbm.cl without bitalign, 1 vectors and worksize 256 [2017-08-04 17:17:58] Initialising kernel poclbm.cl without bitalign, 1 vectors and worksize 256 [2017-08-04 17:18:09] New best share: 3 20s:28.03 avg:72.31 u:428.6 Mh/s | A:0 R:0+0(none) HW:0/none [2017-08-04 17:18:20] Pool 0 is hiding block contents from us [2017-08-04 17:18:20] Pool 0 is hiding block contents from us [2017-08-04 17:18:20] Pool 0 is sending mismatched block contents to us (0 is not 2048-4095) [2017-08-04 17:18:20] Pool 0 is sending mismatched block contents to us (0 is not 2048-4095)
Comments
Does it end up accepting shares? Those notifications usually aren't anything to worry about. Sometimes the mismatched block contents is a sign of problems related to unexpected share difficulty at the pool but if it's working normally it can be ignored.
Thanks for replying! I left it running all night, and it kept generating these kind of messages. In the morning, not a single tiniest of fractions were mined... The pool showed completely zero activity from me.
Any ideas? I am running it on a MacBook Pro (mid 2015) with an AMD Radeon R9 M370X, which the software seem to have properly detected.
My pool is on viabtc.com, if that matters at all.
I suspect the problem is that it's way too hard to mine Bitcoin with a GPU these days, if you put your hash rate in to a profitability calculator you'll see it's next to nothing so the share difficulty at the pool is probably too high.
https://99bitcoins.com/bitcoin-mining-calculator/
If you want to GPU mine in 2017 you should look in to alt currencies that are less ASIC dominated, you can also use MacMiner with nicehash who sell your hash power to buyers using a bunch of different algorithms.
https://www.nicehash.com
I'll look into nicehash and see how it can possibly work with MacMiner, thanks