Re: syncrepl consumer locks up (ITS#3263)

[kuenne@rentec.com]

On Tuesday 03 August 2004 15:49, Jong-Hyuk wrote:
> Thanks for the info. This level of detail is really helping in locating the
> problem.
> Looks like another interaction with the group ACL. It segfaulted while it
> tried to read the group entry.
> I can't tell how far bdb_entry_get proceeded before he died, though. Can
> you locate wehre it faulted within bdb_entry_get ?
> - Jong-Hyuk
>

Hmm, I looked a bit through the sources. The culprit seems to be somewhere at 
around line 386 in back-bdb/id2entry.c where I find:

                if ( slapMode == SLAP_SERVER_MODE ) {
                        *ent = e;
                        /* big drag. we need a place to store a read lock so 
wecan
                         * release it later??
                         */
                        if ( op && !boi ) {
                                boi = op->o_tmpcalloc(1,sizeof(struct 
bdb_op_info),op->o_tmpmemctx);
                                boi->boi_lock = lock;
                                op->o_private = boi;
                        }


Here the boi_lock is initialized but not boi_bdb and later on slapd stumbles 
over it at line 268 in id2entry.c:

if( boi != NULL && op->o_bd->be_private == boi->boi_bdb->be_private ) ...

I'll try to initialize boi_bdb and see whether it changes anything.


Karsten.
-- 
Gay shlafen: Yiddish for "go to sleep".

	Now doesn't "gay shlafen" have a softer, more soothing sound
than the harsh, staccato "go to sleep"?  Listen to the difference:
	"Go to sleep, you little wretch!" ... "Gay shlafen, darling."
Obvious, isn't it?
	Clearly the best thing you can do for you children is to start
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long as you live.  This will, of course, entail teaching Yiddish to all
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so on, but that's just the point.  It has to start with committed
individuals and then grow ...
	Some minor adjustments will have to be made, of course: those
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backwards.  But is that too high a price to pay for world peace?  I
think not, my friend, I think not.
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