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Author Topic: 'sk_wait_data' problem  (Read 2567 times)
rebel
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November 09, 2011, 03:59:11 PM
 #1


After starting Bitcoin,  System Monitor shows  Status going from Uninterruptible-->Running-->Sleeping . Memory shows about 30 MiB. But the Waiting Channel after syncing gets  stuck in 'sk_wait_data' . Already tried to Change Priority in 'Nice' to -20 but to no avail.

I tried to google and see what it is waiting for but all the information about 'sk_wait_data' is well above my level.

I use lucid. Any help appreciated.
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According to NIST and ECRYPT II, the cryptographic algorithms used in Bitcoin are expected to be strong until at least 2030. (After that, it will not be too difficult to transition to different algorithms.)
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2112
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November 09, 2011, 07:19:59 PM
 #2

It is pointless to look at wait channel in system monitor. Bitcoin is a multi-threaded application and to get a real picture you would need to watch wait channels for each thread.

To get a sensible picture of what's going on open a terminal and do "tailf ~/.bitcoin/debug.log", or alternatively start the bitcoin from the command line with the "-printtoconsole" flag.

By the way: sk_wait_data() simply means that the thread is waiting for the data to come through the network socket. I see no problem with this. Bitcoin is indeed heavily depending on the correct network operation.

Please comment, critique, criticize or ridicule BIP 2112: https://bitcointalk.org/index.php?topic=54382.0
Long-term mining prognosis: https://bitcointalk.org/index.php?topic=91101.0
rebel
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November 10, 2011, 01:59:21 PM
 #3

Thanks '2112 '

please let me know if there is anything I can do.

I am on cable with no problems downloading.
Bitcoin has started but is not showing after some 2.5 hours and I have to leave home and shut down computer.
'sk_wait_data' is still waiting. Both "tailf"  "tail-f" have printed 10 lines (9 addresses) and they are also waiting.

Code:
-printtoconsole :
Bitcoin version 0.4.0-beta
OS version Linux 2.6.32-35-generic i686
System default language is 60 en_US.UTF-8
Language file locale/en_US/LC_MESSAGES/bitcoin.mo (English (U.S.))
Default data directory /home/<redacted>/.bitcoin
Bound to port 8333
Loading addresses...
dbenv.open strLogDir=/home/<redacted>/.bitcoin/database strErrorFile=/home/<redacted>/.bitcoin/db.log
Loaded 53669 addresses
 addresses              4995ms
Loading block index...
LoadBlockIndex(): hashBestChain=00000000000001afb9d0  height=152620
 block index           24836ms
Loading wallet...
nFileVersion = 40000
fGenerateBitcoins = 0
nTransactionFee = 0
fMinimizeToTray = 0
fMinimizeOnClose = 0
fUseProxy = 0                                                                                                      
addrProxy = 127.0.0.1:9050                                                                                        
fUseUPnP = 1                                                                                                      
 wallet                  137ms                                                                                    
Done loading                                                                                                      
mapBlockIndex.size() = 152622                                                                                      
nBestHeight = 152620                                                                                              
setKeyPool.size() = 100                                                                                            
mapWallet.size() = 24                                                                                              
mapAddressBook.size() = 23                                                                                        
Loading addresses from DNS seeds (could take a while)                                                              
AddAddress(128.189.187.27:8333)                                                                                    
AddAddress(91.85.220.84:8333)                                                                                      
AddAddress(174.120.185.74:8333)                                                                                    
AddAddress(178.79.147.99:8333)
AddAddress(190.101.85.148:8333)
AddAddress(109.75.176.193:8333)
AddAddress(69.163.132.101:8333)
AddAddress(62.155.236.249:8333)
AddAddress(142.58.248.28:8333)

Anything wrong?  Anything I can do?
Reinstall lucid? Reinstall Bitcoin?
2112
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November 10, 2011, 03:10:21 PM
 #4

I am on cable with no problems downloading.
Bitcoin has started but is not showing after some 2.5 hours and I have to leave home and shut down computer.
You are saying "no problem downloading". Like one network connection downloading single file? What about using a Bittorrent client Transmission to download Fedora-16 ISOs? I've seen many cable modems and home routers failing under the load of multiple peer-to-peer connections: this is exactly what bitcoin does. Using Transmission to download a freshly released Linux (like Fedora-16) should max out your network connection and will be a good test.

First simbly reboot the cable modem and the gateway router. If this doesn't help only then reinstall your Linux. Transmission is included with Ubuntu: use it to download some well-seeded torrent and and verify port forwarding on the router.

Please comment, critique, criticize or ridicule BIP 2112: https://bitcointalk.org/index.php?topic=54382.0
Long-term mining prognosis: https://bitcointalk.org/index.php?topic=91101.0
rebel
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November 11, 2011, 01:55:09 PM
 #5

All problems are now fixed.
Bitcoin shows up  in seconds (certainly less than 30 seconds) and happily does the downloading of the latest blocks.
Unbelievable easy fix!
Thanks
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