-----Original Message----- From: Matthias Bolte [mailto:matthias.bolte@googlemail.com] Sent: 2012年10月7日 2:14 To: Benjamin Wang (gendwang) Cc: Daniel P. Berrange; libvir-list@redhat.com; Yang Zhou (yangzho) Subject: Re: [libvirt] Core dump caused by misusing openssl in multithread scenario! 2012/10/2 Benjamin Wang (gendwang) <gendwang@cisco.com>:
Hi Daniel, Is this problem fixed in the latest version? What about the question 2 which related to openssl callbacks in multi-thread?
As Daniel said, we cannot assume that libcurl was build with OpenSSL backend. We would need some way to detect this first. [Benjamin]: I agree. But if libcurl want to access ESXi by https. OpenSSL will be used. And libvirt must call CRYPTO_set_id_callback/CRYPTO_set_locking_callback to support multi-threads Also, wasn't there a license problem with OpenSSL and the (L)GPL? Can libvirt legally be used with a libcurl that is linked with OpenSSL? [Benjamin]: I think there is no open source license issue. We will not change libcurl or openssl source code. What we needed is to call openssl API(CRYPTO_set_id_callback/CRYPTO_set_locking_callback) to support multi-threads. -- Matthias Bolte http://photron.blogspot.com