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Operating Systems HP-UX Read core files
# 8  
Old 07-14-2012
It is /opt/app/d1grn1m1/app1/jdk150_07/bin/IA64N/java.
# 9  
Old 07-14-2012
@mohtashims
Please post the output verbatim from:
Code:
file core

# 10  
Old 07-16-2012
Error
Quote:
Originally Posted by methyl
@mohtashims
Please post the output verbatim from:
Code:
file core

Code:
==> file core
core:           ELF-32 core file - IA64 from 'java' - received SIGABRT

Also

See the output below.

Code:
==> adb /appl/jdk150_07/bin/IA64N/java core
adb: warning: /usr/lib/hpux32/libcl.so.1: Cannot locate unwind table ...
adb: warning: /usr/lib/hpux32/libcl.so.1: Stack backtrace may fail.
adb> $c
_lwp_kill + 0x30
pthread_kill + 0x9f0
raise + 0xe0
_abort + 0x170
_ZN2os5abortEb + 0x130
_ZN7VMError14report_and_dieEv + 0x4d0
_ZN2os4Hpux22JVM_handle_hpux_signalEiP9__siginfoPvi + 0x5a0
_ZN2os4Hpux13signalHandlerEiP9__siginfoPv + 0x80
adb: error: No load module descriptor for IP '0x0000000031ccf420'.

Now, inorder to convert the whole core file into human readable format you asked me to <<EOF>>.. I'm sorry I dont get what you mean by this. Can you explain in simpler way(Are you asking me to give a logfile name ?? ).

Also as you can see the output above which I am not sure is the desired output because the core dump file is in GBs while the output above is just a few lines. the
Code:
file

command shows the format of the core file remained the same. So how did it help ? Am I missing something ?
Last edited by mohtashims; 07-16-2012 at 06:39 AM..
# 11  
Old 07-16-2012
The EOF-thing is a so called "here-document". This way you can write the input to a command into a shell script. It means

Code:
adb programfile corefile <<EOF >>log

Start adb programfile corefile, read the input for the adb-command from the shellscript, until a line is encountered which reads EOF and append the output to the file log
Code:
    $c
    $q

This is the input to the adb-command. The two lines mean: write out the stacktrace and quit
Code:
EOF

This ends the here-document. The adb-command will read end-of-file at this point.

I don't know, what you mean with "human readable form". The adb-output is pretty much the same, as the output from pstack.
# 12  
Old 07-16-2012
Question
Based on your inputs find my output below.

Code:
==> adb programfile corefile <<EOF >>log
> adb /appl/jdk150_07/bin/IA64N/java core  <<EOF >>log
> $c
> $q
> EOF
mymachine:/appl/applogs/PROD_11JUL_Core>
==> ls -ltr
total 7391824
-rw-------   1 bea        users      1892292560 Jul 12 11:02 core
-rw-r--r--   1 bea        users           52 Jul 16 03:55 log

So, the log file generated using your guidelines is 52 bytes from the core file 1.9 GB ? I feel the log file generated in human readable form should be much more than 52 bytes. Can you make me understand this ??
Last edited by mohtashims; 07-23-2012 at 01:42 AM..
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