more segfaults (sqlite this time)

[Jan-Henrik Haukeland]

I have a feeling or rather hope that it all boils down to a trivial  
error in StringBuffer. Could you try again with the latest from svn?

On 5. april. 2008, at 20.27, Paul J Stevens wrote:
> Jan-Henrik Haukeland wrote:
>> Could you try and create a test program that reproduce this and the
>> MySQL error you previously reported. I have not seen these problems
>> before myself. I don't know if you do, but notice that sharing a
>> Connection, PreparedStatement or ResultSet between threads is not
>> thread-safe and will open a can of worms.
>
> That I dont do, afaik. I always fetch a connection, execute, handle
> result, and return the connection within a single thread. I will  
> double
> check, but I've hardly begun using threads so there's not many  
> places to
> look. Also, the postgres driver is much more stable at the moment. I'm
> still seeing some crashes there as well, but those are few and very  
> far
> between, but also point to Connection_clear.
>
>
>
>>
>>
>> On 5. april. 2008, at 16.59, Paul J Stevens wrote:
>>> Dont shoot the messenger plz :-)
>>>
>>> running some tests using sqlite I'm getting what appears to be stack
>>> corruption:
>>>
>>>
>>>
>>> (gdb) bt
>>> #0  0xffffe410 in __kernel_vsyscall ()
>>> #1  0xb78cbf75 in raise () from /lib/tls/i686/cmov/libc.so.6
>>> #2  0xb78cd8f1 in abort () from /lib/tls/i686/cmov/libc.so.6
>>> #3  0xb7d01b95 in Util_abort (e=0xb7d102a0 "MemoryException -- %s at
>>> %s
>>> in line %d\n") at src/util/Util.c:83
>>> #4  0xb7d023d2 in Mem_resize (p=0x5316e008, size=1665138688,
>>> file=0xb7d214c0 "src/util/StringBuffer.c", line=61) at src/util/
>>> Mem.c:76
>>> #5  0xb7d07c29 in StringBuffer_vappend (S=0x8115438, s=0x81008c0
>>> "UPDATE
>>> OR IGNORE dbmail_mailboxes SET mtime=STRFTIME('%Y-%m-%d
>>> %H:%M:%S','now','localtime') WHERE mailbox_idnr=2",
>>>   ap=0xbfe38778 "{z\t\b��\t\b�") at src/util/StringBuffer.c:61
>>> #6  0xb7d0e88f in SQLiteConnection_execute (C=0x8115de8,  
>>> sql=0x81008c0
>>> "UPDATE OR IGNORE dbmail_mailboxes SET mtime=STRFTIME('%Y-%m-%d
>>> %H:%M:%S','now','localtime') WHERE mailbox_idnr=2",
>>>   ap=0xbfe38778 "{z\t\b��\t\b�") at src/db/sqlite/
>>> SQLiteConnection.c:174
>>>
>>>
>>>
>>> any ideas?
>>
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>
>
> -- 
>  ________________________________________________________________
>  Paul Stevens                                      paul at nfg.nl
>  NET FACILITIES GROUP                     GPG/PGP: 1024D/11F8CD31
>  The Netherlands________________________________http://www.nfg.nl
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