Failed Reading The Magic Number Mapping File

Jun 27, 2012 Hi guys, I have a problem - loaded new IOS image onto 3750 *.tar file. Problem with booting 'magic number mismatch' Hi guys, I have a problem. Magic number checking on storable file failed at././lib. Process and folking process cause 'Magic number. Just try reading them with the retrieve method.

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I tried to load my R workspace and received this error: Error: bad restore file magic number (file may be corrupted) - no data loaded In addition: Warning message: file ‘WORKSPACEWeddingWeekendSeptember’ has magic number '#gets' Use of save versions prior to 2 is deprecated I'm not particularly interested in the technical details, but mostly in how I caused it and how I can prevent it in the future. Here's some notes on the situation:. I'm running R 2.15.1 on a MacBook Pro running Windows XP on a bootcamp partition. There is something obviously wrong this workspace file, since it weighs in at only 80kb while all my others are usually 10,000. Over the weekend I was running an external modeling program in R and storing its output to different objects. I ran several iterations of the model over the course of several days, eg outputSaturday.

Scott Wang Hi All, I got below error message from running 'cover' to merge my coverage data, any clue? The 'Magic number checking on storable file.' Message also shows up in my test log, I am wondering if this means that my coverage database has corrupted somehow. Reading database from. Magic number checking on storable file failed at././lib/Storable.pm (autosplit into././lib/auto/Storable/retrieve.al) line 331, at Devel/Cover/DB/Structure.pm line 269 Thanks, Scott.

Hi All, I got below error message from running 'cover' to merge my coverage data, any clue? The 'Magic number checking on storable file.'

Message also shows up in my test log, I am wondering if this means that my coverage database has corrupted somehow. Reading database from. Magic number checking on storable file failed at././lib/Storable.pm (autosplit into././lib/auto/Storable/retrieve.al) line 331, at Devel/Cover/DB/Structure.pm line 269 Thanks, Scott. On Mon, Jun 05, 2006 at 08:13:38PM -0700, Scott Wang wrote: Hi All, I got below error message from running 'cover' to merge my coverage data, any clue? The 'Magic number checking on storable file.' Message also shows up in my test log, I am wondering if this means that my coverage database has corrupted somehow. Reading database from.

Magic number checking on storable file failed at././lib/Storable.pm (autosplit into././lib/auto/Storable/retrieve.al) line 331, at Devel/Cover/DB/Structure.pm line 269 I think so. Perhaps nothing was written to the database at all? $ perl -MStorable -e 'retrieve '/dev/null' Magic number checking on storable file failed at././lib/Storable.pm (autosplit into././lib/auto/Storable/retrieve.al) line 331, at -e line 1. Scott Wang Hi Paul, You are right, I found a 0 size file under the 'coverdb/structure' folder.

After I removed that 0 size file, my 'cover' worked fine to merge all the data and generated HTML file. The 0 size file, I think, is because some test was killed for timeout because of the slow-down of the test process since we instrumented all test and product scripts with Devel::Cover.

When the test process was killed and terminated abnormal, I think, Devel::Cover was still trying to grab the test process to. Hi Paul, You are right, I found a 0 size file under the 'coverdb/structure' folder. After I removed that 0 size file, my 'cover' worked fine to merge all the data and generated HTML file. The 0 size file, I think, is because some test was killed for timeout because of the slow-down of the test process since we instrumented all test and product scripts with Devel::Cover. When the test process was killed and terminated abnormal, I think, Devel::Cover was still trying to grab the test process to generate data, so there was no any data actually got generated because the test processes had been killed.

Is this a reasonable explaination to the 0 size data file? Thanks, Scott - Paul Johnson wrote.

Hi All, I got below error message from running 'cover' to merge my coverage data, any clue? The 'Magic number checking on storable file.' Message also shows up in my test log, I am wondering if this means that my coverage database has corrupted somehow. Reading database from. Magic number checking on storable file failed at././lib/Storable.pm (autosplit into././lib/auto/Storable/retrieve.al) line 331, at Devel/Cover/DB/Structure.pm line 269 I think so. Perhaps nothing was written to the database at all? $ perl -MStorable -e 'retrieve '/dev/null' Magic number checking on storable file failed at././lib/Storable.pm (autosplit into././lib/auto/Storable/retrieve.al) line 331, at -e line 1 - Paul Johnson - paul@pjcj.net.

On Sat, Jun 10, 2006 at 08:14:09PM -0700, Scott Wang wrote: Hi Paul, You are right, I found a 0 size file under the 'coverdb/structure' folder. After I removed that 0 size file, my 'cover' worked fine to merge all the data and generated HTML file. The 0 size file, I think, is because some test was killed for timeout because of the slow-down of the test process since we instrumented all test and product scripts with Devel::Cover.

When the test process was killed and terminated abnormal, I think, Devel::Cover was still trying to grab the test process to generate data, so there was no any data actually got generated because the test processes had been killed. Is this a reasonable explaination to the 0 size data file?It sounds plausible, but there could be any number of reasons. Perhaps the file system filled up, or you have some rogue process running around truncating Devel::Cover databases.

But the test process being killed probably has something to do with it. The files in the structure directory contain information about the structure of files. That is, the statements, branches and conditions in the file, and other similar data. Scott Wang Hi Paul, Even, currently, there is no any zero size data file in structure folder in my regression code coverage run (lots of suites), I still got lots of messages like below: - Corrupted storable file (binary v2.7) at././lib/Storable.pm (autosplit into././lib/auto/Storable/retrieve.al) line 331, at /xxxxxxxx/Devel/Cover/DB/Structure.pm line 269 END failed-call queue aborted. Seems some data files got corrupted somehow. The process killing (kill parent process.

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Hi Paul, Even, currently, there is no any zero size data file in structure folder in my regression code coverage run (lots of suites), I still got lots of messages like below: - Corrupted storable file (binary v2.7) at././lib/Storable.pm (autosplit into././lib/auto/Storable/retrieve.al) line 331, at /xxxxxxxx/Devel/Cover/DB/Structure.pm line 269 END failed-call queue aborted. Seems some data files got corrupted somehow. The process killing (kill parent process before killing child process and make chid process be terminated abnormally) is one possibility, I also noticed that useing system or other folk method to execute command could also cause this problem. Any clue about above issue 'Corrupted storable file (binary v2.7) at.' And does anybody also experience this issue and know how to deal with it?

Also, does anybody have similar experience on killing process and folking process cause 'Magic number.' Issue and 'orrupted storable file.'

Thanks in advance, Scott - Paul Johnson wrote. Hi Paul, You are right, I found a 0 size file under the 'coverdb/structure' folder. After I removed that 0 size file, my 'cover' worked fine to merge all the data and generated HTML file.

The 0 size file, I think, is because some test was killed for timeout because of the slow-down of the test process since we instrumented all test and product scripts with Devel::Cover. When the test process was killed and terminated abnormal, I think, Devel::Cover was still trying to grab the test process to generate data, so there was no any data actually got generated because the test processes had been killed. Is this a reasonable explaination to the 0 size data file?It sounds plausible, but there could be any number of reasons.

Perhaps the file system filled up, or you have some rogue process running around truncating Devel::Cover databases. But the test process being killed probably has something to do with it. The files in the structure directory contain information about the structure of files.

That is, the statements, branches and conditions in the file, and other similar data. Paul Johnson - paul@pjcj.net.

Paul Johnson In lieu of discussing either licences or alligators, let me try to answer this. Killing the process sounds like the most likely cause of this problem. If you manage to kill the process while it is writing out a storable file the file will very probably be corrupted. How are you killing the process? Are you sending it SIGKILL (9) for example? Maybe you could send it something a little nicer which might allow to process to clean up. Devel::Cover does its work in the very last END block.

On Fri, Jul 07, 2006 at 10:26:13AM -0700, Scott Wang wrote: Hi Paul, Even, currently, there is no any zero size data file in structure folder in my regression code coverage run (lots of suites), I still got lots of messages like below: - Corrupted storable file (binary v2.7) at././lib/Storable.pm (autosplit into././lib/auto/Storable/retrieve.al) line 331, at /xxxxxxxx/Devel/Cover/DB/Structure.pm line 269 END failed-call queue aborted. Seems some data files got corrupted somehow.

The process killing (kill parent process before killing child process and make chid process be terminated abnormally) is one possibility, I also noticed that useing system or other folk method to execute command could also cause this problem. Any clue about above issue 'Corrupted storable file (binary v2.7) at.' And does anybody also experience this issue and know how to deal with it?

Also, does anybody have similar experience on killing process and folking process cause 'Magic number.' Issue and 'orrupted storable file.' Issue?In lieu of discussing either licences or alligators, let me try to answer this. Killing the process sounds like the most likely cause of this problem. If you manage to kill the process while it is writing out a storable file the file will very probably be corrupted.

How are you killing the process? Are you sending it SIGKILL (9) for example? Maybe you could send it something a little nicer which might allow to process to clean up.

Devel::Cover does its work in the very last END block. You really need to let it run to completion. Scott Wang Thanks Paul!

(1) Yes, we do send SIGKILL (9) to kill the parent process even the child processes are still running and our purpose is to have a clean kill from 'root', so, do you think send SIGKILL (2) will be better? Or, we could consider to send SIGKILL (2) to kill all the child processes before send SIGKILL (2) to kill parent process, do you think this may help? (2) 'Maybe you could send it something a little nicer which might allow to process to clean up.'

, any more detail suggestion and. (1) Yes, we do send SIGKILL (9) to kill the parent process even the child processes are still running and our purpose is to have a clean kill from 'root', so, do you think send SIGKILL (2) will be better?

Or, we could consider to send SIGKILL (2) to kill all the child processes before send SIGKILL (2) to kill parent process, do you think this may help? (2) 'Maybe you could send it something a little nicer which might allow to process to clean up.'

, any more detail suggestion and example will be appreciated! (3) We might also consider to give some sleep time before destroy the test object, which causes process killing and cleaning up, but, is there a way we can know Devel::Cover has doen its work to write data? (4) 'Devel::Cover does its work in the very last END block.' , does this mean that Devel::Cover will not write data until the main test process run to its end? For example, a perl test script loads the perl module that is under testing and excise the functions in that module, sometime the test script needs use 'system' to call some other perl scripts (that also is under testing), Devel::Cover will not write data until the main test script reach its end point or exit? (5) Is there a way we can tell which data files (under structure folder?) have been corrupted? We are trying to integrate Devel::Cover into our regular test driven development process, to make Devel::Cover, the amazing code coverage tool in Perl world, work correctly with our test to improve the data accuracy is very critial for us to move forward with the code coverage tool.

Thanks a lot for your kind helps! Scott - Paul Johnson wrote. Ms office 2010 zip file.

Hi Paul, Even, currently, there is no any zero size data file in structure folder in my regression code coverage run (lots of suites), I still got lots of messages like below: - Corrupted storable file (binary v2.7) at././lib/Storable.pm (autosplit into././lib/auto/Storable/retrieve.al) line 331, at /xxxxxxxx/Devel/Cover/DB/Structure.pm line 269 END failed-call queue aborted. Seems some data files got corrupted somehow. The process killing (kill parent process before killing child process and make chid process be terminated abnormally) is one possibility, I also noticed that useing system or other folk method to execute command could also cause this problem.

Any clue about above issue 'Corrupted storable file (binary v2.7) at.' And does anybody also experience this issue and know how to deal with it?

Also, does anybody have similar experience on killing process and folking process cause 'Magic number.' Issue and 'orrupted storable file.' Issue?In lieu of discussing either licences or alligators, let me try to answer this. Killing the process sounds like the most likely cause of this problem.

If you manage to kill the process while it is writing out a storable file the file will very probably be corrupted. How are you killing the process? Are you sending it SIGKILL (9) for example? Maybe you could send it something a little nicer which might allow to process to clean up.

Devel::Cover does its work in the very last END block. You really need to let it run to completion. Paul Johnson - paul@pjcj.net. Paul Johnson I'm not quite sure what your environment looks like, so I can only give some general suggestions at best.

If you can avoid signals completely, I would try to do that. Maybe you have some other method of IPC going on that you could use to use to send a 'kill yourself' command. Singals in perl used not to be safe, that is they could lead to corruption or crashes. Since 5.8 they have been safe (providing you haven't explicitly made them unsafe). (Hopefully you are not using 5.6.) So if you can. On Sat, Jul 08, 2006 at 03:44:55PM -0700, Scott Wang wrote: Thanks Paul!

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(1) Yes, we do send SIGKILL (9) to kill the parent process even the child processes are still running and our purpose is to have a clean kill from 'root', so, do you think send SIGKILL (2) will be better? Or, we could consider to send SIGKILL (2) to kill all the child processes before send SIGKILL (2) to kill parent process, do you think this may help? (2) 'Maybe you could send it something a little nicer which might allow to process to clean up.' , any more detail suggestion and example will be appreciated!I'm not quite sure what your environment looks like, so I can only give some general suggestions at best. If you can avoid signals completely, I would try to do that. Maybe you have some other method of IPC going on that you could use to use to send a 'kill yourself' command.

Singals in perl used not to be safe, that is they could lead to corruption or crashes. Since 5.8 they have been safe (providing you haven't explicitly made them unsafe).

(Hopefully you are not using 5.6.) So if you can send a signal which can be caught, and then set up a signal handler which cleans up (if necessary) and then exists the program, that should allow things to work better. You might like to consider USR1 or USR2 for this, if you are not already using them.

Or you might prefer TERM. In any case, you should ensure that it is a signal which can be caught, which is not the case with KILL. (3) We might also consider to give some sleep time before destroy the test object, which causes process killing and cleaning up, but, is there a way we can know Devel::Cover has doen its work to write data?

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(4) 'Devel::Cover does its work in the very last END block.' , does this mean that Devel::Cover will not write data until the main test process run to its end?Sleeping, then killing won't work. Although Devel::Cover collects data the entire time a program is running (unless you turn it off at some point), the data will not be saved until its END block is run. This will normally be the very last END block. This means that unless you let the program run to completion the coverage data will not be fully saved. You might hinder this process by calling exit, calling exec, sending SIGKILL or doing anything else that stops normal completion of the program.

For example, a perl test script loads the perl module that is under testing and excise the functions in that module, sometime the test script needs use 'system' to call some other perl scripts (that also is under testing), Devel::Cover will not write data until the main test script reach its end point or exit?Correct. But the scripts you are calling with system will not have any coverage data collected unless you have arranged for that in some way. And if you do that, the coverage data for those scripts will be written as soon as the scripts exit.