Re: problem with enbd init on standby

Peter T. Breuer wrote:
>"Also sprach u.schmeling:"
>  
>>Ok I only recompiled the client module. Will do the rest tommorow morning!
>>    
>
>No no .. that's FINE.  I want NO debugging output (until I have
>localized the problem somewhat). My question was merely as to HOW you
>had managed to get SOME debugging output and not OTHER. It's all in the
>same source file!
>
>What I want is the strace information from both sides for that bit of
>the handshake (where it exchanges bksz).  You may have to turn on
>debugging in order to locate it, but if you can manage to find the point
>WITHOUT debugging turned on, all the better, initially.
>
>Turning on debugging indiscriminately can cause new errors. If you are
>going to turn it on in expect() (in enbd-client.c), that's a pretty
>limited use and is just about K, but if you are going to the trouble of
>limiting it like that, best to turn it on in the fill() code (in the
>same file) as well.
>
>Peter
>_______________________________________________
>ENBD mailing list
>[email protected]
>http://lists.community.tummy.com/mailman/listinfo/enbd
>  
Ok Peter,
have turned on the restricted debugging for expect + fill and the 
results look like that:
client (-1) manager made pidfile /var/run/enbd-client-8.pid with pid 14041
nbd/time 14041: <#  64> mygettimeofday time was 0+0E-6 s and is 
1123827840+453839E-6 s
enbd-client 14041: <#4277> main client (-1) manager started new process 
group 14041
enbd-client 14041: <#4303> main client (-1) manager sees target 0 is 
mks:1130(1130)
enbd-client 14041: <#4303> main client (-1) manager sees target 1 is 
mks:1130(1130)
enbd-client 14041: <#4303> main client (-1) manager sees target 2 is 
mks:1130(1130)
enbd-client 14041: <#4316> main client (-1) manager sees 1 distinct targets
enbd-client 14041: <#4334> main client (-1) manager tries target mks:1130
enbd-client 14041: client (-1) starts introduction sequence on mks:1130
enbd-client 14041: <#2627> introduction client (-1) joins inits pgrp
enbd-client 14041: <#2632> introduction client (-1) resets sighandlers
enbd-client 14041: <#2638> introduction client (-1) has initial socket -1
enbd-client 14041: <#2671> introduction client (-1) opened socket 5 to 
mks:1130
enbd-client 14041: <#2375> expect client (-1) starts expect sequence intro
enbd-client 14041: <#2401> expect try looking for read command Helo
enbd-client 14041: <#2242> command Search for key Helo
enbd-client 14041: <#2247> command Fetch 11 more bytes from net to total 11
enbd-client 14041: <#2258> command buffer [helo]
enbd-client 14041: <#2275> command found Helo
enbd-client 14041: <#2290> command Fetch 5 more bytes from net to total 16
enbd-client 14041: <#2424> expect command Helo received
enbd-client 14041: <#2453> expect client has read helo nbd-client
enbd-client 14041: <#2456> expect mark Helo as actioned
enbd-client 14041: <#2327> drop shift buff 5 left to total 11
enbd-client 14041: <#2464> expect client (-1) returns with Helo from expect
enbd-client 14041: <#2751> introduction client (-1) introduction begins
enbd-client 14041: <#2327> drop shift buff 11 left to total 0
enbd-client 14041: <#2401> expect try looking for read command pass
enbd-client 14041: <#2242> command Search for key pass
enbd-client 14041: <#2247> command Fetch 9 more bytes from net to total 9
enbd-client 14041: <#2258> command buffer [pass]
enbd-client 14041: <#2275> command found pass
enbd-client 14041: <#2290> command Fetch 5 more bytes from net to total 14
enbd-client 14041: <#2424> expect command pass received
enbd-client 14041: <#2453> expect client has read pass NBDMAGIC
enbd-client 14041: <#2456> expect mark pass as actioned
enbd-client 14041: <#2327> drop shift buff 5 left to total 9
enbd-client 14041: <#2464> expect client (-1) returns with pass from expect
enbd-client 14041: <#2763> introduction client (-1) read passwd 
[NBDMAGIC] ok from mks:1130
enbd-client 14041: <#2401> expect try looking for read command mgck
enbd-client 14041: <#2242> command Search for key mgck
enbd-client 14041: <#2247> command Fetch 19 more bytes from net to total 19
enbd-client 14041: <#2258> command buffer [mgck]
enbd-client 14041: <#2275> command found mgck
enbd-client 14041: <#2290> command Fetch 5 more bytes from net to total 24
enbd-client 14041: <#2424> expect command mgck received
enbd-client 14041: <#2453> expect client has read mgck 0x0000420281861253
enbd-client 14041: <#2456> expect mark mgck as actioned
enbd-client 14041: <#2464> expect client (-1) returns with mgck from expect
enbd-client 14041: <#2785> introduction client (-1) got cliserv magic ok
enbd-client 14041: <#2405> expect try looking for write command rdev
enbd-client 14041: <#2409> expect result from looking for write command 
rdev is 4
enbd-client 14041: <#2427> expect writing data for command rdev
enbd-client 14041: <#2434> expect client (-1) suggested rdev 2b00
 to server
enbd-client 14041: <#2437> expect have 0 after offset 4, need 5 more in buf
enbd-client 14041: <#2343> fill Fetch 1 more bytes from net to total 5
enbd-client 14041: <#2343> fill Fetch 1 more bytes from net to total 6
enbd-client 14041: <#2343> fill Fetch 1 more bytes from net to total 7
enbd-client 14041: <#2448> expect skipped 6B@4B to EOL
enbd-client 14041: <#2791> introduction client (-1) got rdev 0x2b00 ok
enbd-client 14041: client (-1) got size 42949672960
enbd-client 14041: client (-1) got signature [8], had []
enbd-client 14041: <#2881> introduction client (-1) received remote 
resource ro flags 0
enbd-client 14041: <#2899> introduction client (-1) negotiated device ro 
flags 0
enbd-client 14041: <#2405> expect try looking for write command bksz
enbd-client 14041: <#2409> expect result from looking for write command 
bksz is 4
enbd-client 14041: <#2427> expect writing data for command bksz
enbd-client 14041: <#2434> expect client (-1) suggested bksz 1024
 to server
enbd-client 14041: <#2437> expect have 0 after offset 4, need 5 more in buf
enbd-client 14041: <#2366> fill Warning - read only 0/1B on descriptor 
5: Invalid argument
enbd-client 14041: <#2448> expect skipped 11B@4B to EOL
enbd-client 14041: <#2451> expect Warning - client read half line <bksz 
13107rqto >
enbd-client 14041: <#2824> introduction client (-1) suggested blksize 
1024 to server
enbd-client 14041: <#2835> introduction client (-1) received suggestion 
blksize 13107
enbd-client 14041: client (-1) negotiated blksize 13107
enbd-client 14041: <#2405> expect try looking for write command rqto
enbd-client 14041: <#2272> command key rqto not found
enbd-client 14041: <#2409> expect result from looking for write command 
rqto is -1
enbd-client 14041: <#2541> expect client (-1) fails in expect sequence
enbd-client 14041: <#2999> introduction client (-1) introduction 
sequence ends FAIL

if you point me to the problem, I will to some debugging to save your time
regards Uwe