Collect causes segmentation fault when profiling L2 data cache misses on T1

I am attempting to profile L2 data cache misses on a SUN T1000 server, but collect causes a segmentation fault when I choose to profile L2 data cache misses.
Is it possible to profile L2 data misses on the T1 processor?
Thanks!
-John
A simple hello world application and the failed profiling:
%] collect -p +on -h ecdm hello
Segmentation fault
I compiled with
CC -xhwcprof -xdebugformat=dwarf -g -03 -o hello hello.c

No it is not possible to profile L2 cache misses -- the chip does not generate
interrupts on performance register 0 (only register 1, which is hard-wired
to instruction count).
That said, we should not generate a segmentation fault. Exactly
which version of collect are you using? We did patch Studio 11
to correctly handle the US-T1, and Studio 12 express also
correctly handles it.
Is the SEGV on the collect command, or on the target it launches?
Marty Itzkowitz,
Project Lead, Sun Studio Analyzer

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An example of the log file follows:
Process: mdworker [1106]
Path: /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadat a.framework/Versions/A/Support/mdworker
Identifier: mdworker
Version: ??? (???)
Code Type: X86-64 (Native)
Parent Process: launchd [1]
Date/Time: 2010-08-04 13:53:36.875 -0500
OS Version: Mac OS X 10.6.4 (10F569)
Report Version: 6
Exception Type: EXCBADACCESS (SIGSEGV)
Exception Codes: KERNINVALIDADDRESS at 0x000000000000000b
Crashed Thread: 3
Thread 0: Dispatch queue: com.apple.main-thread
0 libSystem.B.dylib 0x00007fff844c12fa machmsgtrap + 10
1 libSystem.B.dylib 0x00007fff844c196d mach_msg + 59
2 com.apple.CoreFoundation 0x00007fff843553c2 __CFRunLoopRun + 1698
3 com.apple.CoreFoundation 0x00007fff8435484f CFRunLoopRunSpecific + 575
4 com.apple.CoreFoundation 0x00007fff843545d6 CFRunLoopRun + 70
5 mdworker 0x0000000100008f31 0x100000000 + 36657
6 mdworker 0x0000000100001bb8 0x100000000 + 7096
Thread 1: Dispatch queue: com.apple.libdispatch-manager
0 libSystem.B.dylib 0x00007fff844da08a kevent + 10
1 libSystem.B.dylib 0x00007fff844dbf5d dispatch_mgrinvoke + 154
2 libSystem.B.dylib 0x00007fff844dbc34 dispatch_queueinvoke + 185
3 libSystem.B.dylib 0x00007fff844db75e dispatch_workerthread2 + 252
4 libSystem.B.dylib 0x00007fff844db088 pthreadwqthread + 353
5 libSystem.B.dylib 0x00007fff844daf25 start_wqthread + 13
Thread 2:
0 libSystem.B.dylib 0x00007fff844daeaa _workqkernreturn + 10
1 libSystem.B.dylib 0x00007fff844db2bc pthreadwqthread + 917
2 libSystem.B.dylib 0x00007fff844daf25 start_wqthread + 13
Thread 3 Crashed:
0 com.apple.CoreFoundation 0x00007fff8430f0b0 CFRetain + 112
1 com.apple.CoreFoundation 0x00007fff8430eb32 CFArrayCreate + 242
2 com.apple.CoreFoundation 0x00007fff84363fa6 -[__NSPlaceholderArray initWithObjects:count:] + 486
3 com.apple.CoreFoundation 0x00007fff84370361 +[NSArray arrayWithObject:] + 49
4 com.apple.AcSpotlight 0x0000000100387e3c GetMetadataForFile + 148
5 mdworker 0x0000000100006a96 0x100000000 + 27286
6 mdworker 0x0000000100009ef1 0x100000000 + 40689
7 libSystem.B.dylib 0x00007fff844fa456 pthreadstart + 331
8 libSystem.B.dylib 0x00007fff844fa309 thread_start + 13
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rax: 0x0000000000000000 rbx: 0x0000000000000002 rcx: 0x0000000000000000 rdx: 0x00007fff708140a0
rdi: 0x0000000000000002 rsi: 0x0000000000000002 rbp: 0x000000010197f760 rsp: 0x000000010197f750
r8: 0x00000001004fc0a0 r9: 0x00000001004fc0a4 r10: 0x0000000000000004 r11: 0x000000010044f600
r12: 0x000000010044f630 r13: 0x000000010197f818 r14: 0x0000000000000001 r15: 0x00007fff70845f20
rip: 0x00007fff8430f0b0 rfl: 0x0000000000010246 cr2: 0x000000000000000b
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0x7fff85b40000 - 0x7fff85b8cfff libauto.dylib ??? (???) <072804DF-36AD-2DBE-7EF8-639CFB79077F> /usr/lib/libauto.dylib
0x7fff85b8d000 - 0x7fff85bb0fff com.apple.opencl 12.1 (12.1) <403E8F37-4348-B9BC-08E6-7693A995B7EC> /System/Library/Frameworks/OpenCL.framework/Versions/A/OpenCL
0x7fff85bb1000 - 0x7fff85bb4ff7 libCoreVMClient.dylib ??? (???) <DBB2C09F-4BF4-326C-B775-B7A128C501E3> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libCoreVMClien t.dylib
0x7fff85dbb000 - 0x7fff85de3fff com.apple.DictionaryServices 1.1.1 (1.1.1) <9FD709FC-23F0-F270-EAC1-C590CD516A36> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Diction aryServices.framework/Versions/A/DictionaryServices
0x7fff85de4000 - 0x7fff85de9fff libGIF.dylib ??? (???) <21FC6B02-6AC3-C4DB-0B50-98144802274C> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libGIF.dylib
0x7fff85dea000 - 0x7fff8611dfe7 com.apple.CoreServices.CarbonCore 861.13 (861.13) <BC2F9B4E-D305-D717-D97E-EC78C7DE9EE9> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonC ore.framework/Versions/A/CarbonCore
0x7fff862de000 - 0x7fff862dffff liblangid.dylib ??? (???) <EA4D1607-2BD5-2EE2-2A3B-632EEE5A444D> /usr/lib/liblangid.dylib
0x7fff862e0000 - 0x7fff8635dfef libstdc++.6.dylib 7.9.0 (compatibility 7.0.0) <35ECA411-2C08-FD7D-11B1-1B7A04921A5C> /usr/lib/libstdc++.6.dylib
0x7fff8635e000 - 0x7fff86483fef com.apple.audio.toolbox.AudioToolbox 1.6.3 (1.6.3) <4DCCD01F-7516-4240-09DC-EE553317D345> /System/Library/Frameworks/AudioToolbox.framework/Versions/A/AudioToolbox
0x7fff864ff000 - 0x7fff86569fe7 libvMisc.dylib 268.0.1 (compatibility 1.0.0) <514D400C-50A5-C196-83AA-1035DDC8FBBE> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libvMisc.dylib
0x7fff8679a000 - 0x7fff86834fff com.apple.ApplicationServices.ATS 4.3 (???) <A7CD9E1F-C563-E940-130D-AA7E08C5A29F> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ATS.framework/Versions/A/ATS
0x7fff86835000 - 0x7fff86843ff7 libkxld.dylib ??? (???) <EE840168-1F67-6219-8BA3-C46039BCC8B3> /usr/lib/system/libkxld.dylib
0x7fff86844000 - 0x7fff86858ff7 com.apple.speech.synthesis.framework 3.10.35 (3.10.35) <621B7415-A0B9-07A7-F313-36BEEDD7B132> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ SpeechSynthesis.framework/Versions/A/SpeechSynthesis
0x7fff86859000 - 0x7fff8686bfe7 libsasl2.2.dylib 3.15.0 (compatibility 3.0.0) <76B83C8D-8EFE-4467-0F75-275648AFED97> /usr/lib/libsasl2.2.dylib
0x7fff86aa2000 - 0x7fff8719f067 com.apple.CoreGraphics 1.543.50 (???) <46A7D60C-0500-B96C-ECAD-1D658487D213> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreGraphics.framework/Versions/A/CoreGraphics
0x7fff871a0000 - 0x7fff871eaff7 com.apple.Metadata 10.6.3 (507.10) <641395B7-FF2C-B94C-965A-CE6A0830645F> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadat a.framework/Versions/A/Metadata
0x7fff87254000 - 0x7fff87269ff7 com.apple.LangAnalysis 1.6.6 (1.6.6) <DC999B32-BF41-94C8-0583-27D9AB463E8B> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ LangAnalysis.framework/Versions/A/LangAnalysis
0x7fff8726a000 - 0x7fff87568fe7 com.apple.HIToolbox 1.6.3 (???) <CF0C8524-FA82-3908-ACD0-A9176C704AED> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.fra mework/Versions/A/HIToolbox
0x7fff87569000 - 0x7fff87618fff edu.mit.Kerberos 6.5.10 (6.5.10) <F3F76EDF-5660-78F0-FE6E-33B6174F55A4> /System/Library/Frameworks/Kerberos.framework/Versions/A/Kerberos
0x7fff87715000 - 0x7fff87764fef libTIFF.dylib ??? (???) <A66CBA9C-A38D-5EDB-BFB5-CB398F033D6F> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libTIFF.dylib
0x7fff877fb000 - 0x7fff8781cfff libresolv.9.dylib 41.0.0 (compatibility 1.0.0) <6993F348-428F-C97E-7A84-7BD2EDC46A62> /usr/lib/libresolv.9.dylib
0x7fff87a18000 - 0x7fff87aa4fef SecurityFoundation ??? (???) <6860DE26-0D42-D1E8-CD7C-5B42D78C1E1D> /System/Library/Frameworks/SecurityFoundation.framework/Versions/A/SecurityFoun dation
0x7fff87aa5000 - 0x7fff87d2bff7 com.apple.security 6.1.1 (37594) <5EDDC08C-C95B-2D24-E1D2-D30D233AB065> /System/Library/Frameworks/Security.framework/Versions/A/Security
0x7fff87ec0000 - 0x7fff87ec6ff7 IOSurface ??? (???) <EB2019F6-7C5C-3D59-E11F-6119466C12A9> /System/Library/Frameworks/IOSurface.framework/Versions/A/IOSurface
0x7fff88bba000 - 0x7fff88ffdfef libLAPACK.dylib 219.0.0 (compatibility 1.0.0) <0CC61C98-FF51-67B3-F3D8-C5E430C201A9> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libLAPACK.dylib
0x7fff8903e000 - 0x7fff890c3fff com.apple.print.framework.PrintCore 6.2 (312.5) <C20F87CE-ACC1-552B-8A73-2B3846A01D80> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ PrintCore.framework/Versions/A/PrintCore
0x7fffffe00000 - 0x7fffffe01fff libSystem.B.dylib ??? (???) <95E02DD0-ADEA-745B-E7FA-ABA064E4658C> /usr/lib/libSystem.B.dylib
Right now, the issue has a short term fix, i.e. disabling spotlight on the data partition, but I'd like to have a long-term solution to the problem. Any advice is appreciated.
FYI, this problem did not exist on this same computer with the same HDD configuration prior to my reinstallation of Snow Leopard. I reinstalled Snow Leopard due to the installation of a SSD drive, but this problem happens now when booting either to the System partition on the HDD or the System partition on the SSD.
Thanks!
Garth

Did you try the suggestions in the bugreport you cited (https://bugs.archlinux.org/task/38099)?

SQL Server Driver for Linux causes Segmentation Fault

Hello,
I'm using the SQL Server Driver 11.0.1790 on Linux with mod_perl and Apache. While running fine with all my CLI Perl apps I occasionally get Segmentation Faults when using it from within mod_perl applications. Sometimes every other connect to the database
segfaults. I've created a core dump and did a stack backtrace:
Loaded symbols for /usr/lib/../lib64/libxml2.so.2
Core was generated by `/usr/sbin/httpd2 -X'.
Program terminated with signal 11, Segmentation fault.
#0 0x0000000000000000 in ?? ()
(gdb) bt
#0 0x0000000000000000 in ?? ()
#1 0x00007f8a8aeda803 in __connect_part_two (connection=0x7f8a99c885e0) at SQLConnect.c:1891
#2 0x00007f8a8aedffd6 in SQLDriverConnect (hdbc=0x7f8a99c885e0, hwnd=0x0, conn_str_in=0x7fff1e7369ee "",
len_conn_str_in=<value optimized="" out="">,
conn_str_out=0x7fff1e736a80 "DSN=XXXXX;UID=XXX;PWD=XXXXXXXX;WSID=XXXXXXXX;DATABASE=XXXXX;MARS_Connection=Yes;",
conn_str_out_max=512, ptr_conn_str_out=0x7fff1e736a7e, driver_completion=0) at SQLDriverConnect.c:1530
#3 0x00007f8a8b1458ee in odbc_db_login6 (dbh=0x7f8a99938ca0, imp_dbh=0x7f8a99c8acd0,
dbname=0x7fff1e736c80 "DSN=XXXXX;MARS_Connection=Yes;UID=XXX;PWD=XXXXXXXX", uid=0x7f8a9996e8b0 "XXX",
pwd=0x7f8a9996e8d0 "XXXXXXXX", attr=0x7f8a99938c40) at dbdimp.c:942
#4 0x00007f8a8b141822 in XS_DBD__ODBC__db__login (my_perl=<value optimized="" out="">, cv=<value optimized="" out="">) at ./ODBC.xsi:98
#5 0x00007f8a9125b091 in Perl_pp_entersub (my_perl=0x7f8a96274f50) at pp_hot.c:3046
#6 0x00007f8a912595f6 in Perl_runops_standard (my_perl=0x7f8a96274f50) at run.c:41
#7 0x00007f8a911eb755 in Perl_call_sv (my_perl=0x7f8a96274f50, sv=0x7f8a99938bc8, flags=2) at perl.c:2632
#8 0x00007f8a8b791d02 in XS_DBI_dispatch (my_perl=0x7f8a96274f50, cv=0x7f8a98cbbe60) at DBI.xs:3473
#9 0x00007f8a9125b091 in Perl_pp_entersub (my_perl=0x7f8a96274f50) at pp_hot.c:3046
#10 0x00007f8a912595f6 in Perl_runops_standard (my_perl=0x7f8a96274f50) at run.c:41
#11 0x00007f8a911ebab0 in Perl_call_sv (my_perl=0x7f8a96274f50, sv=0x7f8a97db4f68, flags=10) at perl.c:2647
#12 0x00007f8a9154ba31 in modperl_callback (my_perl=0x7f8a96274f50, handler=0x7f8a96230c90, p=0x7f8a96334838, r=0x7f8a963348b0,
s=0x7f8a962303b0, args=0x7f8a998376a8) at modperl_callback.c:101
#13 0x00007f8a9154c79c in modperl_callback_run_handlers (idx=6, type=4, r=0x7f8a963348b0, c=<value optimized="" out="">, s=0x7f8a962303b0,
pconf=<value optimized="" out="">, plog=0x0, ptemp=0x0, run_mode=MP_HOOK_RUN_FIRST) at modperl_callback.c:262
#14 0x00007f8a9154cb6f in modperl_callback_per_dir (idx=-1714610816, r=<value optimized="" out="">, run_mode=<value optimized="" out="">)
at modperl_callback.c:369
#15 0x00007f8a91546b93 in modperl_response_handler_run (r=0x7f8a963348b0) at mod_perl.c:1000
#16 modperl_response_handler (r=0x7f8a963348b0) at mod_perl.c:1039
#17 0x00007f8a95f01e08 in ap_run_handler ()
#18 0x00007f8a95f0226c in ap_invoke_handler ()
#19 0x00007f8a95f0ff00 in ap_process_request ()
#20 0x00007f8a95f0ce98 in ?? ()
#21 0x00007f8a95f08b28 in ap_run_process_connection ()
#22 0x00007f8a95f14e5a in ?? ()
#23 0x00007f8a95f15126 in ?? ()
#24 0x00007f8a95f15903 in ap_mpm_run ()
#25 0x00007f8a95eec9be in main ()
</value></value></value></value></value></value></value>
Calling something at NULL obviously doesn't look right…
Can onebody help fixing this issue?
Best regards,
Stephan

Hi Stephan,
This is a bug in the unixODBC Driver Manager 2.3.0. Essentially, you can only have one HDBC per HENV. The mod_perl must be creating the connections upon the same HENV.
The bug appears to be fixed in version 2.3.1 but we have not yet certified that out driver can work with 2.3.1. See the 2.3.1 release notes at
http://www.unixodbc.org/ where the last item says:
"Driver version was not being held when a second connection was made to the driver"
The Driver Manager would "forget" that we are an ODBC V3 driver and try intereacting with us as an ODBC V2 driver for the second connection (which fails).
The workaround is to create a new HENV for each connection but I'm not sure if this is possible in mod_perl.

Segmentation fault when using snapshot isolation with Berkeley DB 6.1.19 and 5.1.29

Hello,
I have been experimenting with snapshot isolation with Berkeley DB, but I find that it frequently triggers a segmentation fault when write transactions are in progress. The following test program reliably demonstrates the problem in Linux using either 5.1.29 or 6.1.19.
https://anl.app.box.com/s/3qq2yiij2676cg3vkgik
Compilation instructions are at the top of the file. The test program creates a temporary directory in /tmp, opens a new environment with the DB_MULTIVERSION flag, and spawns 8 threads. Each thread performs 100 transactional put operations using DB_TXN_SNAPSHOT. The stack trace when the program crashes generally looks like this:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff7483700 (LWP 11871)]
0x00007ffff795e190 in __memp_fput ()
   from /usr/lib/x86_64-linux-gnu/libdb-5.1.so
(gdb) where
#0 0x00007ffff795e190 in __memp_fput ()
   from /usr/lib/x86_64-linux-gnu/libdb-5.1.so
#1 0x00007ffff7883c30 in __bam_get_root ()
   from /usr/lib/x86_64-linux-gnu/libdb-5.1.so
#2 0x00007ffff7883dca in __bam_search ()
   from /usr/lib/x86_64-linux-gnu/libdb-5.1.so
#3 0x00007ffff7870246 in ?? () from /usr/lib/x86_64-linux-gnu/libdb-5.1.so
#4 0x00007ffff787468f in ?? () from /usr/lib/x86_64-linux-gnu/libdb-5.1.so
#5 0x00007ffff79099f4 in __dbc_iput ()
   from /usr/lib/x86_64-linux-gnu/libdb-5.1.so
#6 0x00007ffff7906c10 in __db_put ()
   from /usr/lib/x86_64-linux-gnu/libdb-5.1.so
#7 0x00007ffff79191eb in __db_put_pp ()
   from /usr/lib/x86_64-linux-gnu/libdb-5.1.so
#8 0x0000000000400f14 in thread_fn (foo=0x0)
    at ../tests/transactional-osd/bdb-snapshot-write.c:154
#9 0x00007ffff7bc4182 in start_thread (arg=0x7ffff7483700)
    at pthread_create.c:312
#10 0x00007ffff757f38d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
I understand that this test program, with 8 concurrent (and deliberately conflicting) writers, is not an ideal use case for snapshot isolation, but this can be triggered in other scenarios as well.
You can disable snapshot isolation by toggling the value of the USE_SNAP #define near the top of the source, and the test program then runs fine without it.
Can someone help me to identify the problem?
many thanks,
-Phil

Hi Phil,
   We have taken a look at this in more detail and there was a bug in the code.   We have fixed the bug.     We will roll it into our next 6.1 release that we do.   If you would like an early patch that will go on top of 6.1.19, please email me at [email protected], reference this forum post and I can get a patch sent out to you.   It will be a .diff file that apply on the source code and then rebuild the library. Once again thanks for finding the issue, and providing a great test program which tremendously helped in getting this resolved.
thanks
mike

Segmentation fault when calling dbms_alert.register() procedure from OCCI

I am trying to call the dbms_alert.register() from the OCCI but I get segmentation fault when I run the program, here is the code snippet. I am gettin segmentation fault immediately after calling setSQL() method.
Environment *occiEnvironment_;
Connection *occiConnection_ ;
string userName("SCOTT");
string userPasswd("tiger");
string url("");
occiEnvironment_ = Environment::createEnvironment();
try{
occiConnection_ = occiEnvironment_->createConnection(userName,userPasswd,url);
Statement *occiStatement1;
cout << "Before setSQL" << endl;
occiStatement1->setSQL("BEGIN dbms_alert.register(:1); END;");
cout << "After setSQL" << endl;
string alert1("MY_ALERT");
occiStatement1->setString(1,alert1);
occiStatement1->execute();
catch (SQLException ea)
cout << ea.what();
}

Thanks for the reply, now I dont see segmentation fault.
I tried to exted the code further to wait for the registered events, I added the following code, I do get and event but then get the exception:
Statement *occiStatement1 = occiConnection_->createStatement();
Statement *occiStatement2 = occiConnection_->createStatement();
string alert, msg;
int status;
occiStatement1->setSQL("BEGIN dbms_alert.register(:1); END;");
string alert1("MY_ALERT");
occiStatement1->setString(1,alert1);
occiStatement1->execute();
occiStatement2->setSQL("BEGIN dbms_alert.waitany(:alert,:msg,:status); END;");
occiStatement2->registerOutParam(1, OCCICHAR, sizeof(alert));
occiStatement2->registerOutParam(2, OCCICHAR, sizeof(msg));
occiStatement2->registerOutParam(3, OCCIINT, sizeof(int));
occiStatement2->execute();
===========================================================
ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "SYS.DBMS_ALERT", line 252
ORA-06512: at line 1
ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "SYS.DBMS_ALERT", line 252
ORA-06512: at line 1
*** glibc detected *** free(): invalid pointer: 0x08619c48 ***
Aborted

Dynamic Calc processor cannot lock more than [100] ESM blocks during the calculation, please increase CalcLockBlock setting and then retry(a small data cache setting could also cause this problem, please check the data cache size setting).

Hi,
Our Environment is Essbase 11.1.2.2 and working on Essbase EAS and Shared Services components.One of our user tried to run the Cal Script of one Application and faced this error.
Dynamic Calc processor cannot lock more than [100] ESM blocks during the calculation, please increase CalcLockBlock setting and then retry(a small data cache setting could also cause this problem, please check the data cache size setting).
I have done some Google and found that we need to add something in Essbase.cfg file like below.
1012704 Dynamic Calc processor cannot lock more than number ESM blocks during the calculation, please increase CalcLockBlock setting and then retry (a small data cache setting could also cause this problem, please check the data cache size setting).
Possible Problems
Analytic Services could not lock enough blocks to perform the calculation.
Possible Solutions
Increase the number of blocks that Analytic Services can allocate for a calculation:
Set the maximum number of blocks that Analytic Services can allocate to at least 500.
If you do not have an $ARBORPATH/bin/essbase.cfg file on the server computer, create one using a text editor.
In the essbase.cfg file on the server computer, set CALCLOCKBLOCKHIGH to 500.
Stop and restart Analytic Server.
Add the SET LOCKBLOCK HIGH command to the beginning of the calculation script.
Set the data cache large enough to hold all the blocks specified in the CALCLOCKBLOCKHIGH setting.
Determine the block size.
Set the data catche size.
Actually in our Server Config file(essbase.cfg) we dont have below data added.
CalcLockBlockHigh 2000
CalcLockBlockDefault 200
CalcLockBlocklow 50
So my doubt is if we edit the Essbase.cfg file and add the above settings and restart the services will it work? and if so why should we change the Server config file if the problem is with one application Cal Script. Please guide me how to proceed.
Regards,
Naveen

Your calculation needs to hold more blocks in memory than your current set up allows.
From the docs (quoting so I don't have to write it, not to be a smarta***:
CALCLOCKBLOCK specifies the number of blocks that can be fixed at each level of the SET LOCKBLOCK HIGH | DEFAULT | LOW calculation script command.
When a block is calculated, Essbase fixes (gets addressability to) the block along with the blocks containing its children. Essbase calculates the block and then releases it along with the blocks containing its children. By default, Essbase allows up to 100 blocks to be fixed concurrently when calculating a block. This is sufficient for most database calculations. However, you may want to set a number higher than 100 if you are consolidating very large numbers of children in a formula calculation. This ensures that Essbase can fix all the required blocks when calculating a data block and that performance will not be impaired.
Example
If the essbase.cfg file contains the following settings:
CALCLOCKBLOCKHIGH 500 CALCLOCKBLOCKDEFAULT 200 CALCLOCKBLOCKLOW 50
then you can use the following SET LOCKBLOCK setting commands in a calculation script:
SET LOCKBLOCK HIGH;
means that Essbase can fix up to 500 data blocks when calculating one block.
Support doc is saying to change your config file so those settings can be made available for any calc script to use.
On a side note, if this was working previously and now isn't then it is worth investigating if this is simply due to standard growth or a recent change that has made an unexpected significant impact.

Segmentation Fault when logging into WebDB HomePage

Please Help!
I've installed WebDB into an Oracle 8i database and have added
the appropriate 'webdb' alias in the tnsnames.ora file. I start
the WebDB Listener which starts and run fine, I can even go to
the gateway.htm and listener.htm pages through WebDB. However,
I run into a problem when going to the default WebDB HomePage
where a dialog box pops up to have you login as the webdb user.
I do this, and in a short while another dialog comes up and says
that the 'document contains no data'. It then proceeds to kill
all the 'wdblsnr' processes that were running in the background,
which causes a segmentation fault to occur in the session that
the WebDB Listener was started.
(i.e.- http://{machine_name}:8080/WebDB/) Can anyone help?
Thanks...
null

Hi Randall
This is exactly the problem, most of us are running into. Please
read the thread some lines above (rh6.0 + 8i + webdb again),
where a workaround is mentioned.
Dietmar
Randall Sherrod (guest) wrote:
: Please Help!
: I've installed WebDB into an Oracle 8i database and have added
: the appropriate 'webdb' alias in the tnsnames.ora file. I
start
: the WebDB Listener which starts and run fine, I can even go to
: the gateway.htm and listener.htm pages through WebDB. However,
: I run into a problem when going to the default WebDB HomePage
: where a dialog box pops up to have you login as the webdb
user.
: I do this, and in a short while another dialog comes up and
says
: that the 'document contains no data'. It then proceeds to kill
: all the 'wdblsnr' processes that were running in the
background,
: which causes a segmentation fault to occur in the session that
: the WebDB Listener was started.
: (i.e.- http://{machine_name}:8080/WebDB/) Can anyone help?
: Thanks...
null

Firefox crashes several times causing segmentation fault and os hangs..

Hi all I need some support with my firefox's crash reports, I experienced several crashes caused by segmentation faults in the last days..
I tried to disable the plugins and extensions without success, here are the submitted ids with the environment specifications and the stacktrace..
bp-13a18b97-31fe-4377-925f-bffcd2150202 02/02/2015 19:12
bp-0b4778a2-772a-4c80-a02f-49a072150202 02/02/2015 19:11
bp-9b67f1d4-bfec-4b10-82d8-419b22150201 01/02/2015 19:50
bp-96148524-40fa-4cf9-af44-9b1aa2150201 01/02/2015 19:49
bp-ae5064b2-28e3-4cbb-86ce-d135c2150201 01/02/2015 19:49
bp-021c9a88-a39c-4dd6-901a-338fb2150201 01/02/2015 19:49
bp-0cc1fe90-d18b-4569-b417-b68aa2150201 01/02/2015 19:47
bp-b9010685-d9c2-4023-bf6f-3d62b2150201 01/02/2015 19:38
bp-30b6ce06-4099-4b02-9b31-aa4592150201 01/02/2015 19:38
bp-42775095-85ab-4483-a8d9-514532150201 01/02/2015 19:33
bp-52b1c8fc-ea92-45a3-921e-5cefd2150201 01/02/2015 19:29
bp-f6fa76f9-d809-4d27-a828-28a342150201 01/02/2015 19:29
bp-882ad6af-b40d-4581-ae5c-6a36a2150201 01/02/2015 18:45
bp-3386431e-d79a-4b08-b2d7-fb5ff2150201 01/02/2015 18:26
bp-60f44c61-efd2-47cb-8876-1459f2150201 01/02/2015 15:36
bp-36dff3ff-33a1-40f0-96c5-23e1f2150201 01/02/2015 15:36
bp-6d645c52-77ff-41be-aea4-a52162150201 01/02/2015 15:35
bp-9c40023a-405e-4058-8a09-ab33f2150201 01/02/2015 15:35
bp-d24d5131-4e95-4e4e-8074-da8a92150201 01/02/2015 15:23
bp-8532da86-9863-4429-a7ec-b85be2150131 31/01/2015 12:38
bp-cd793567-13ff-4f83-aa1e-867352150131 31/01/2015 12:38
bp-18eb4ee5-2242-417d-9e45-f4d4a2150131 31/01/2015 12:38
Anyhelp will be appreciated
Regards
fusillator

This is mozilla firefox from xubuntu repository, here's the details:
firefox 35.0.1+build amd64
I tried to reinstall the package, remove the extension xul-ext-webaccounts, and create a new profile without success.
I don't know if the previous segmentation faults may be related to the recent flash security bugs CVE-2015-0313..
Anyway I checked the plugin and updated the shockwave flash plugin from 11.2.202.440 to 11.2.202.442
Now I experienced a crash of the shockwave flash plugin again, but it lets the browser and os responsive.
Here are the kernel report by dmesg:
[ 1346.694353] plugin-containe[2403]: segfault at 0 ip 00007f4c2143a5fa sp 00007fffa6363a50 error 4 in libxul.so[7f4c2067b000+3d09000]
[ 1638.222670] hda-intel 0000:00:1b.0: Unstable LPIB (65532 >= 32768); disabling LPIB delay counting
[ 1708.324460] plugin-containe[2639]: segfault at 0 ip 00007f4ae3ca35fa sp 00007fffe586e360 error 4 in libxul.so[7f4ae2ee4000+3d09000]
and here's the new firefox crash id:
bp-eb912267-97f5-498d-b642-330602150206
I don't know if disabling hardware accelaration from the adobe player could be effective.. Anyway I can't follow the guide at https://helpx.adobe.com/flash-player/kb/video-playback-issues.html#main_Solve_video_playback_issues becouse the right click context menu "Settings" of the flash player appears not clickable (disabled)
Anyway I'll turn off the hardware accelaration option from the browser.
Unfortunatly I haven't tested the 32 bit version from mozilla repo yet.
Thanks for your fast reply.
Regards
fusillator

Segmentation Fault when connecting to SQL*Plus from Applications tier

Hi Everyone -
I am currently in the process of upgrading a client from 11.5.10.2 to 12.1.1 (eventually 12.1.3) on a OEL x86-64 server. I have laid down the software stack and followed all of the requirements as per the Installation manuals and 761566.1. I also have an open SR right now on this issue - but I wanted to see if any of you have ever run into the issue that I am encountering.
When I try to run adadmin/adpatch - I get to the prompt of providing the system user password and the utility simply exits. No errors in adpatch.log or adadmin.log (both are 0 bytes in size).
When I try to connect using SQL*Plus from the applications tier using either:
sqlplus apps/****@SID
sqlplus system/****@SID
I get a Segmentation Fault error. There are also no errors in my alert log file on the database tier. I found this error while attempting to apply the upgrade merge patch.
Has anyone ever seen s Segmentation Fault error? I have search MOS, found a couple of potential solutions - but nothing has solved the issue so far.
Thanks in advance...
Brenna

>
Are you on 11.1.0.5.0? Is this the database version?
No, my database tier is 11.2.0.3 (the database version displayed above was the client version running on the Application Tier.
Who is the owner of the application tier files? If it is applmgr user, please make sure you login as that user and source the application env file before running sqlplus -- Please issue "echo $ORACLE_HOME" and "which sqlplus" and post the output here.
My owner of the application tier is oracle. I have sourced the environment using $APPL_TOP/APPSR12Dev1_******.env
[oracle@****** log]$ echo $ORACLE_HOME
/u01/app/oracle/R12Dev1/apps/tech_st/10.1.2
[oracle@****** log]$ which sqlplus
/u01/app/oracle/R12Dev1/apps/tech_st/10.1.2/bin/sqlplus
>
Please relink sqlplus by issuing "$ORACLE_HOME/bin/relink all > relink.txt 2>&1" and check the relink.txt file for any error
A number of errors occur during the relink, here are some of them:
/u01/app/oracle/R12Dev1/apps/tech_st/10.1.2/bin/genclntsh
/usr/bin/ld: warning: i386:x86-64 architecture of input file `/u01/app/oracle/R12Dev1/apps/tech_st/10.1.2/lib/libn10.a(nnfgt.o)' is incompatible with i386 output
/usr/bin/ld: warning: i386:x86-64 architecture of input file `/u01/app/oracle/R12Dev1/apps/tech_st/10.1.2/lib/libn10.a(ntcontab.o)' is incompatible with i386 output
/u01/app/oracle/R12Dev1/apps/tech_st/10.1.2/bin/genagtsh /u01/app/oracle/R12Dev1/apps/tech_st/10.1.2/lib/libagtsh.so 1.0
/usr/bin/ld: warning: i386:x86-64 architecture of input file `/u01/app/oracle/R12Dev1/apps/tech_st/10.1.2/lib/libn10.a(nnfgt.o)' is incompatible with i386 output
/usr/bin/ld: warning: i386:x86-64 architecture of input file `/u01/app/oracle/R12Dev1/apps/tech_st/10.1.2/lib/libn10.a(ntcontab.o)' is incompatible with i386 output
/u01/app/oracle/R12Dev1/apps/tech_st/10.1.2/lib/libn10.a(nnfgt.o):(.rodata+0xc8): undefined reference to `nnflboot'
/u01/app/oracle/R12Dev1/apps/tech_st/10.1.2/lib/libn10.a(ntcontab.o):(.data+0x8): undefined reference to `nttini'
/u01/app/oracle/R12Dev1/apps/tech_st/10.1.2/lib/libn10.a(ntcontab.o):(.data+0x28): undefined reference to `ntzini'
/u01/app/oracle/R12Dev1/apps/tech_st/10.1.2/lib/libn10.a(ntcontab.o):(.data+0x68): undefined reference to `ntpini'
/u01/app/oracle/R12Dev1/apps/tech_st/10.1.2/lib/libn10.a(ntcontab.o):(.data+0x88): undefined reference to `ntusini'
collect2: ld returned 1 exit status
Thanks again...

Ssh has stopped working - reverse mapping causes segmentation fault

This was working on Friday, believe me. I haven't done anything that I'm aware of (apart from reboot the machine) to change things, except in trying to fix it.
Briefly, ssh crashes out with a segmentation fault and a crash log (below). Poking around with verbosity gives (real ip obscured):
% ssh ip4 -vvvv
OpenSSH_3.8.1p1, OpenSSL 0.9.7i 14 Oct 2005
debug1: Reading configuration data /etc/ssh_config
debug2: ssh_connect: needpriv 0
debug1: Connecting to ip4 [ip4] port 22.
debug1: Connection established.
debug1: identity file /Users/rpg/.ssh/identity type -1
debug1: identity file /Users/rpg/.ssh/id_rsa type -1
debug1: identity file /Users/rpg/.ssh/id_dsa type -1
debug1: Remote protocol version 1.99, remote software version OpenSSH_3.8.1p1
debug1: match: OpenSSH_3.8.1p1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.8.1p1
debug3: Trying to reverse map address ip4.
Segmentation fault
I get similar reports for %ssh FQDN and %ssh $USER@[FQDN*|*ip4].
Although I'm trying to ssh to a machine on another continent, trying to ssh into my own machine (from a Terminal window on my own machine) also does not work. Setting UseDNS no in /etc/sshd_config on my machine does not help. Oddly, trying to ssh to my own machine by
%ssh 127.0.0.1 gives
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.8.1p1
debug3: Trying to reverse map address 127.0.0.1.
debug1: An invalid name was supplied
Configuration file does not specify default realm
debug1: An invalid name was supplied
A parameter was malformed
Validation error
debug1: An invalid name was supplied
Configuration file does not specify default realm
debug1: An invalid name was supplied
A parameter was malformed
Validation error
debug1: SSH2MSGKEXINIT sent
debug1: SSH2MSGKEXINIT received
and then works (after a lot more info).
I can ssh into this machine from elsewhere, I just can't ssh out. Below the crash log is a report from running a server with
% sudo sshd -D -ddd -e -p 10000
and connecting with
% ssh -vvv -p 10000 $USER@FQDN
ssh crash log:
Date/Time: 2006-05-29 15:42:09.284 +1000
OS Version: 10.4.6 (Build 8I1119)
Report Version: 4
Command: ssh
Path: /usr/bin/ssh
Parent: bash [1020] (note: also fails under tcsh)
Version: ??? (???)
PID: 1021
Thread: 0
Exception: EXCBADACCESS (0x0001)
Codes: KERNINVALIDADDRESS (0x0001) at 0xb1d255e4
Thread 0 Crashed:
0 libstdc++.6.dylib 0x90b37e3a _cxa_getglobals + 324
1 libstdc++.6.dylib 0x90b3853a _gxx_personalityv0 + 658
2 libgcc_s.1.dylib 0x90bcabf7 UnwindRaiseException + 147
3 libstdc++.6.dylib 0x90b38857 _cxathrow + 87
4 edu.mit.Kerberos 0x94c4a238 CCIContextDataMachIPCStub::OpenCCache(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) + 314
5 edu.mit.Kerberos 0x94c49fde CCEContext::OpenCCache(cccontextd*, char const*, ccccached**) + 160
6 edu.mit.Kerberos 0x94c49d5e cc_open + 64
7 edu.mit.Kerberos 0x94c49bf6 krb5stdccresolve + 182
8 edu.mit.Kerberos 0x94c4f1a1 __KLGetCCacheByName + 254
9 edu.mit.Kerberos 0x94c4ee8a __KLAcquireInitialTicketsForCache + 179
10 edu.mit.Kerberos 0x94c4ed7f krb5intccdefault + 85
11 edu.mit.Kerberos 0x94c40215 krb5gss_acquirecred + 2409
12 edu.mit.Kerberos 0x94c4ed11 kggetdefcred + 73
13 edu.mit.Kerberos 0x94c4da14 krb5gss_init_seccontext + 208
14 ssh 0x00024305 0x1000 + 144133
15 ssh 0x000246f4 0x1000 + 145140
16 ssh 0x000247fb 0x1000 + 145403
17 ssh 0x0000c462 0x1000 + 46178
18 ssh 0x0000a251 0x1000 + 37457
19 ssh 0x000042c7 0x1000 + 12999
20 ssh 0x000025f2 0x1000 + 5618
21 ssh 0x0000250d 0x1000 + 5389
Thread 0 crashed with i386 Thread State:
eax: 0x00000000 ebx: 0x90b3880d ecx:0xbfffda7c edx: 0xa4c425a0
edi: 0xb1d255e4 esi: 0xa4c425a0 ebp:0xbfffd9e8 esp: 0xbfffd9b0
ss: 0x0000002f efl: 0x00010246 eip:0x90b37e3a cs: 0x00000027
ds: 0x0000002f es: 0x0000002f fs:0x00000000 gs: 0x00000037
sudo sshd -D -ddd -e -p 10000:
debug2: readserverconfig: filename /etc/sshd_config
debug1: sshd version OpenSSH_3.8.1p1
debug1: private host key: #0 type 0 RSA1
debug3: Not a RSA1 key file /etc/sshhost_rsakey.
debug1: read PEM private key done: type RSA
debug1: private host key: #1 type 1 RSA
debug3: Not a RSA1 key file /etc/sshhost_dsakey.
debug1: read PEM private key done: type DSA
debug1: private host key: #2 type 2 DSA
debug1: Bind to port 10000 on ::.
Server listening on :: port 10000.
debug1: Bind to port 10000 on 0.0.0.0.
Server listening on 0.0.0.0 port 10000.
Generating 768 bit RSA key.
RSA key generation complete. <- pause here
debug1: Server will not fork when running in debugging mode.
Connection from ip4 port 50148
debug1: Current Session ID is 00B16810 / Session Attributes are 00008030
debug1: Creating new security session...
debug1: New Session ID is 0F7C2940 / Session Attributes are 00009020
debug1: Client protocol version 2.0; client software version OpenSSH_3.8.1p1
debug1: match: OpenSSH_3.8.1p1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-1.99-OpenSSH_3.8.1p1
debug2: Network child is on pid 1101
debug3: preauth child monitor started
debug3: mmrequestreceive entering
debug3: privsep user:group 75:75
debug1: permanentlysetuid: 75/75
debug1: listhostkeytypes: ssh-rsa,ssh-dss
debug3: mmrequestsend entering: type 40
debug3: mmrequest_receiveexpect entering: type 41
debug3: mmrequestreceive entering
debug3: monitor_read: checking request 40
debug1: Miscellaneous failure
No such file or directory
debug3: mmrequestsend entering: type 41
debug3: mmrequestreceive entering
debug1: no credentials for GSSAPI mechanism Kerberos
debug1: SSH2MSGKEXINIT sent
Connection closed by ip4
debug1: do_cleanup
debug1: PAM: cleanup
debug3: PAM: sshpamthreadcleanup entering
debug1: do_cleanup
debug1: PAM: cleanup
debug3: PAM: sshpamthreadcleanup entering
and
% ssh -vvv -p 10000 $USER@FQDN :
OpenSSH_3.8.1p1, OpenSSL 0.9.7i 14 Oct 2005
debug1: Reading configuration data /etc/ssh_config
debug2: ssh_connect: needpriv 0
debug1: Connecting to FQDN [ip4] port 10000.
debug1: Connection established.
debug1: identity file /Users/rpg/.ssh/identity type -1
debug1: identity file /Users/rpg/.ssh/id_rsa type -1
debug1: identity file /Users/rpg/.ssh/id_dsa type -1
debug1: Remote protocol version 1.99, remote software version OpenSSH_3.8.1p1
debug1: match: OpenSSH_3.8.1p1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.8.1p1
debug3: Trying to reverse map address ip4.
Segmentation fault

10.4.7 fixed this.
But broke iCal. . .
Actually, I never had any problems with 10.4.6, but ssh on my nat'ed Intel Macbook now segfaults when doing reverse mapping after upgrading to 10.4.7.
OpenSSH_3.8.1p1, OpenSSL 0.9.7i 14 Oct 2005
debug1: Reading configuration data /etc/ssh_config
debug1: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to amrshampine [10.4.51.45] port 22.
debug1: Connection established.
debug1: identity file /Users/lindkvis/.ssh/identity type -1
debug1: identity file /Users/lindkvis/.ssh/id_rsa type -1
debug1: identity file /Users/lindkvis/.ssh/id_dsa type -1
debug1: Remote protocol version 1.99, remote software version OpenSSH_3.6.1p2
debug1: match: OpenSSH_3.6.1p2 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.8.1p1
debug3: Trying to reverse map address 10.4.51.45.
Macbook White 13" 1.83GHz 1GB Mac OS X (10.4.6)

Segmentation fault when enabling replication with SQL API

Hi,
I've compiled BDB 5.3.21 on Ubuntu 11.04 (x86) with the following configure options:
../dist/configure enable-sql enable-sql_compat enable-debug enable-tcl --with-tcl=/usr/lib
I was able to follow the Replication Usage Examples given in "Getting Started with the SQL APIs" to set up a set of replicated master/client databases.
However, after I exited out of the dbsql session that started replication on the master database and re-opened the master database with dbsql, executing "pragma replication_initial_master=ON;" followed by "pragma replication=ON;" led to a segmentation fault. gdb showed that the segmentation fault occurred at:
dbsql> pragma replication=ON;
Program received signal SIGSEGV, Segmentation fault.
0x0032d42b in __env_ref_get (dbenv=0x8056ad8, countp=0xbfffd498)
at ../src/env/env_region.c:772
772          renv = infop->primary;
(gdb) list
767          REGENV *renv;
768          REGINFO *infop;
769
770          env = dbenv->env;
771          infop = env->reginfo;
772          renv = infop->primary;
773          *countp = renv->refcnt;
774          return (0);
775     }
776
(gdb)
Does anybody know of a solution to this or could this be a bug? Thanks in advance.
P.S. here's a stack trace:
(gdb) bt
#0 0x0032d42b in __env_ref_get (dbenv=0x8056ad8, countp=0xbfffd498)
at ../src/env/env_region.c:772
#1 0x001786fc in hasDatabaseConnections (p=0x8056708)
at ../lang/sql/generated/sqlite3.c:44420
#2 0x00178a11 in bdbsqlPragmaStartReplication (pParse=0x80648e0,
pDb=0x80561cc) at ../lang/sql/generated/sqlite3.c:44533
#3 0x001797f5 in bdbsqlPragma (pParse=0x80648e0,
zLeft=0x8062e20 "replication", zRight=0x8062dc0 "ON", iDb=0)
at ../lang/sql/generated/sqlite3.c:44812
#4 0x001c215d in sqlite3Pragma (pParse=0x80648e0, pId1=0x8064b60,
pId2=0x8064b70, pValue=0x8064b90, minusFlag=0)
at ../lang/sql/generated/sqlite3.c:78941
#5 0x001e5c83 in yy_reduce (yypParser=0x8064b20, yyruleno=256)
at ../lang/sql/generated/sqlite3.c:96668
#6 0x001e6761 in sqlite3Parser (yyp=0x8064b20, yymajor=1, yyminor=...,
pParse=0x80648e0) at ../lang/sql/generated/sqlite3.c:97051
#7 0x001e7537 in sqlite3RunParser (pParse=0x80648e0,
zSql=0x80648b8 "pragma replication=ON;", pzErrMsg=0xbfffdba0)
at ../lang/sql/generated/sqlite3.c:97877
#8 0x001c730e in sqlite3Prepare (db=0x8056010,
zSql=0x80648b8 "pragma replication=ON;", nBytes=-1, saveSqlFlag=1,
---Type <return> to continue, or q <return> to quit---
pReprepare=0x0, ppStmt=0xbfffdc8c, pzTail=0xbfffdc88)
at ../lang/sql/generated/sqlite3.c:80736
#9 0x001c7739 in sqlite3LockAndPrepare (db=0x8056010,
zSql=0x80648b8 "pragma replication=ON;", nBytes=-1, saveSqlFlag=1,
pOld=0x0, ppStmt=0xbfffdc8c, pzTail=0xbfffdc88)
at ../lang/sql/generated/sqlite3.c:80828
#10 0x001c7a5e in sqlite3_prepare_v2 (db=0x8056010,
zSql=0x80648b8 "pragma replication=ON;", nBytes=-1, ppStmt=0xbfffdc8c,
pzTail=0xbfffdc88) at ../lang/sql/generated/sqlite3.c:80903
#11 0x0804baf6 in shell_exec (db=0x8056010,
zSql=0x80648b8 "pragma replication=ON;",
xCallback=0x804a3c4 <shell_callback>, pArg=0xbfffde14, pzErrMsg=0xbfffdcfc)
at ../lang/sql/sqlite/src/shell.c:1092
#12 0x0805030e in process_input (p=0xbfffde14, in=0x0)
at ../lang/sql/sqlite/src/shell.c:2515
#13 0x08051453 in main (argc=2, argv=0xbffff3f4)
at ../lang/sql/sqlite/src/shell.c:2946
-Irving
Edited by: snowcrash on Jan 15, 2013 2:16 PM

Thank you for reporting this. I have been able to reproduce this crash in-house.
You need to specify the replication_initial_master and replication pragmas as part of initially creating your SQL database. The replication_initial_master pragma is not used or needed after the initial database creation at the initial master site. The replication=on pragma is a persistent setting that we remember internally the first time you specify it. This means that after specifying replication=on for the first time on a site, we will automatically restart replication for you in future dbsql sessions when we open the underlying Berkeley DB environment.
This gives you a very simple workaround: don't respecify replication=on when you reenter dbsql.
Of course, we shouldn't be crashing on an unnecessary pragma. I have added this to our list of fixes to consider for the future.
Thanks,
Paula Bingham
Oracle

Segmentation fault when calling gpctr function from matlab mex file

I am trying to write a simple mex file for square wave generation using counter1 of PCI-6035E. I am using matlab's native compiler to compile and link with the nidaq32 library, ver.6.9.3, with no errors. When the mex function is called from a matlab script, however, the program crashes at the first call, to reset the counter. (I can generate a square wave with the test panel.)

Sorry for the delay in responding. I got caught up in other stuff. I am attaching my little program as requested. As you can see, I have just wrapped a mexFunction call round the example code for square wave generation. After I posted this, I tracked down a copy of BorlandC++, installed it on my computer and recompiled using that compiler and *b.* libraries. And would you know it, the program works. The question remains, though, why it doesn't work with Matlab's native lcc compiler. Plus, I have limited disk space, so if I can do without BorlandC, I can use the extra room. The runtime error was a Segmentation fault that I traced to the first call to GPCTR_Control.
Attachments:
pulsegen.c ‏4 KB

Nodejs segmentation fault when using npm

I am using nodejs-0.8.14-1 and v8-3.14.0-1 on Raspberry Pi when I try to npm install a package I get a seg fault
[root@alarmpi ~]# npm install express
npm http GET https://registry.npmjs.org/express
npm http 304 https://registry.npmjs.org/express
Segmentation fault
I see this thread: https://bbs.archlinux.org/viewtopic.php?id=151400
That claims the problem is solved but it does not appear to be fixed for me. Any idea on what I can do to get this working?
Edit: If I keep on trying (npm install express) like 7 or 8 times it will finally install.
Last edited by kaptk2 (2012-11-21 03:28:37)

This seems to have cleared itself up over the long weekend. So I guess this is solved, not sure what is wrong or what fixed it though.

Streamer gives segmentation fault when trying to grab a picture.

I'm testing streamer to grab output from my web camera.
Creating video works fine.
# streamer -q -c /dev/video0 -f rgb24 -r 3 -t 00:30:00 -o outfile.avi
But grabbing an image, gives segmentation fault.
# streamer -c /dev/video0 -b 16 -o outfile.jpeg
files / video: JPEG (JFIF) / audio: none
Segmentation fault
I got the commands from http://tldp.org/HOWTO/html_single/Webcam-HOWTO/#COMMAND
Am I doing something wrong?

Some extra information: If I run xawtv I get a blank screen but I can take a snapshot by pressing 'j' or by using the remote:
$ xawtv-remote snap jpeg full picture.jpeg
This actually gets an image from the camera. When I take a picture or close the xawtv client it briefly flashes an image of what the camera is seeing before returning back to black/closing.
I also get exactly the same error as on the link above.

PCManFM Segmentation fault when trying to open two windows

Hi
It seems to be a bug, but I don't know if it's Arch, or upstream related, so first of all I will post here.
What happens: When trying to open two different windows of the file manager PCManFM, it crashes systematically.
How to reproduce: Open an terminal, type "pcmanfm"; pcmanfm is now open. Open another terminal, or another tab, type "pcmanfm"; pcmanfm is now closed. Go back to the first term, and you'll see "Segmentation fault"

ozar wrote:While PCManFM is broken and rather annoying, note that you can open new tabs and windows from within the PCManFM window that already have open.
Yep, I'm using this function since I noticed that bug but it'll be cool if this problem could be fixed in the near future ^^

Collect causes segmentation fault when profiling L2 data cache misses on T1

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