Experimental Physics and
Industrial Control System

Ron Sluiter <[email protected]> · Mon, 11 Nov 2013 10:30:15 -0600

On 11/8/2013 5:46 PM, J. Lewis Muir wrote:

Well, not so fast I guess.  It just happened again on Saturday, this
time using NFSv2 (using the image you sent me).  The error messages on
the console look the same:

=== console ===
save_restore:write_it: fprintf returned -1. [131101-194540]
../save_restore.c(1636): [0x2f0003]=write_it:S_rpcLib_RPC_CANTSEND
save_restore:write_it: fclose('auto_settings.sav') returned -1
../save_restore.c(1751): [0x2f0003]=write_it:S_rpcLib_RPC_CANTSEND
save_restore:write_it: Giving up on this attempt to write 'auto_settings.sav'. [131101-194540]
===============

Any ideas on how to investigate, fix, or work around?

Hello Lewis,

I mentioned this before in the tech-talk thread, but you may have missed it
amongst a barrage of questions.

We had sever problems with both save/restore and corrupted saveData

*.mda files

at several 2-ID-D IOC's this summer.  A sampling of error messages,

save_restore:write_save_file: Backup file

(/xorApps/epics/synApps_5_6/ioc/2idd/iocBoot/ioc2idd/autosave/auto_settings.savB)

bad or not found. Writing a new one.

[130723-124613] myFileCopy: size=32768, chars_printed=15457

save_restore:write_it - unable to open file

'/xorApps/epics/synApps_5_6/ioc/2idd/iocBoot/ioc2idd/autosave/auto_settings.savB'

[130723-124613] ../save_restore.c(1346):

[0x2f0003]=write_it:S_rpcLib_RPC_CANTSEND

---- splice here -----
saveData: ...will retry in 5 seconds
saveData: ...will retry in 5 seconds

saveData: * saveData: too many retries; abandoning data from scan

'2idd:scanH'

saveData: * saveData:proc_scan_cpt(2idd:scan1): can't open data file!!

I tried a number of solutions. Since we were running VxWorks 6.8 when the
problems started I tried switching back to VxWork 5.5.2; still failed.

I switched back to VxWorks 6.8 and tried using NFSv2; still failed.

The problems were resolved (so far) by upgrading to VxWorks 6.9.
We never found the root cause (which I find very annoying).

(I did create a a procedure that provided nearly 100% failure rate for

corrupted

*.mda files from saveData. Contact me if you want more info on this.)

Ron

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System