Re: [389-devel] Please review ticket 47976: deadlock in mep delete post op

[thierry bordaz <tbordaz@xxxxxxxxxx>]

Hi Ludwig, Rich,

you were right (as usual !), dblayer_get_pvt_txn/dblayer_push_pvt_txn are doing the magic.
Now the fix is a oneline fix !

https://fedorahosted.org/389/attachment/ticket/47976/0001-Ticket-47976-2-deadlock-in-mep-delete-post-op.patch

thanks
thierry
On 11/03/2015 06:01 PM, Ludwig Krispenz wrote:

Hi Thierry,

we already had started to discuss on IRC, but here are my thoughts again.

Is it necessary to explicitely set the txn in the plugin ? The txn will be found when ldbm_back_delete() does dblayer_txn_begin(9 and it checks the per thread stack of txns.
In my opinion the real problem is not to set  the txn in id2entry, which will then try to read a locked page.

Ludwig

On 11/03/2015 05:40 PM, thierry bordaz wrote:

ticket https://fedorahosted.org/389/ticket/47976

fix https://fedorahosted.org/389/attachment/ticket/47976/0001-Ticket-47976-deadlock-in-mep-delete-post-op.patch

test case: https://fedorahosted.org/389/attachment/ticket/47976/0002-Ticket-47976-test-case.patch

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