I have run a valgrind check on my Application. This is the O/P I can see at the end of valgrind file.
==28497== ERROR SUMMARY: 939015 errors from 228 contexts (suppressed: 2650 from 164)
Can anyone please explain what does the below line mean
==28497== ERROR SUMMARY: 939015 errors from 228 contexts (suppressed: 2650 from 164)
A Roy -
Related
My last context/error I see in my valgrind output file is...
==3030== 1075 errors in context 61 of 540:
==3030== Syscall param ioctl(SIOCETHTOOL,ir) points to uninitialised byte(s)
==3030== at 0x7525248: ioctl (syscall-template.S:84)
==3030== by 0x686A2A7: ??? (in /lib/libpal.so)
==3030== Address 0x96cf958 is on thread 16's stack
==3030== Uninitialised value was created by a stack allocation
==3030== at 0x686A20C: ??? (in /lib/libpal.so)
...but I don't see error contexts 62 - 540. My first thought was maybe in closing the program, valgrind crashed, but after this context it printed the ERROR SUMMARY
ERROR SUMMARY: 9733 errors from 540 contexts (suppressed: 0 from 0)
I don't think it's because we came across a frame without debug info because I can see this exact same issue get hit the first time at the very beginning of my output file. Or maybe the printing of error contexts specifically, is halted when a stacktrace has missing debug info?
Any ideas? Need an additional command line argument for valgrind? I know in helgrind it'll quit after seeing 1000000 errors(something like that) but it explicitly tells you what it's doing.
So for my version of valgrind I also executed helgrind and saw all contexts(647) as expected. I think the problem above is simply a result of valgrind coming across a frame with no debug symbols and saying, "If there's no debug info, I'm moving on"
All of my logs I'm producing end with this same libpal frame at various context numbers 100-something, 200-something, etc.
I am suddenly receiving this error message when compiling my app:
elm make src/App.elm --output ../assets/javascripts/elm/App.js
elm: not enough bytes
CallStack (from HasCallStack):
error, called at libraries/binary/src/Data/Binary.hs:212:21 in binary-0.8.5.1:Data.Binary
make: *** [App.js] Error 1
Compiler bug?
Edit: The workaround is to delete elm-stuff. Then it will compile once, and have the same bug on the next attempt.
It looks like valgrind returns non-zero return code when it detects memory-leak even though they are listed in the suppression file.
No-errors are displayed but yet the return code is 134. This fails all my builds in jenkins... Is there a way around this or am I doing something wrong?
You are very probably doing something wrong (or maybe using a buggy old version of valgrind, the below is with the just released 3.12) :
valgrind --leak-check=full --errors-for-leak-kinds=all --error-exitcode=33
--suppressions=t.supp ./memcheck/tests/trivialleak
...
==22750== suppressed: 1,000 bytes in 1,000 blocks
...
echo $?
0
while without suppression file:
valgrind --leak-check=full --errors-for-leak-kinds=all --error-exitcode=33
./memcheck/tests/trivialleak
...
==22760== 1,000 bytes in 1,000 blocks are definitely lost in loss record 1 of 1
...
echo $?
33
Pig exists with exit code 7 after printing these 3 lines:
2014-07-16 21:57:37,271 [main] INFO org.apache.pig.Main - Apache Pig version 0.11.0-cdh4.6.0 (rexported) compiled Feb 26 2014, 03:01:22
2014-07-16 21:57:37,272 [main] INFO org.apache.pig.Main - Logging error messages to: ..../pig_1405562257268.log
2014-07-16 21:57:37,627 [main] INFO org.apache.pig.impl.util.Utils - Default bootup file /home/sam/.pigbootup not found
what does this mean?
The INFO messages are normal
The only unusual bit is the exit code (7, see above)
The pig_*.log file does not exist
Is this documented somewhere?
EDIT: the problem was eliminated when I removed the semicolon from the end of the %declare line.
go figure...
You may take a look at the return codes in the source code.
The book Programming Pig also contains a list of their meaning in chapter two.
I copy them here for reference:
0 Success
1 Retriable failure
2 Failure
3 Partial failure - Used with multiquery; see “Nonlinear Data Flows”
4 Illegal arguments passed to Pig
5 IOException thrown - Would usually be thrown by a UDF
6 PigException thrown - Usually means a Python UDF raised an exception
7 ParseException thrown (can happen after parsing if variable substitution
is being done)
8 Throwable thrown (an unexpected exception)
I'm trying to understand debug output from a crash log. I have the following line from the crashlog:
22 FG 0x00022b94 0x1000 + 138132
I understand how to use atos on 0x00022b94 to get the source code location.
What I would like to know is why the crash log helpfully splits that number into 0x1000 + 138132? I have googled and the googles failed me.
0x1000 is where the __TEXT segment of that binary file (your app or some dylib) is mapped to, and 138132
is the (decimal) offset from that origin. This separation allows program to find the error location in a position-independent way.