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authorPaolo Bonzini <pbonzini@redhat.com>2013-04-19 17:32:09 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2013-04-22 08:52:21 -0500
commit2b316774f60291f57ca9ecb6a9f0712c532cae34 (patch)
treefdf4cd08dc4b74c11778d4f4d7fcf141775ff2f1 /qemu-options.hx
parentcdbf6e165988ab9d7c01da03b9e27bb8ac0c76aa (diff)
downloadqemu-arm-2b316774f60291f57ca9ecb6a9f0712c532cae34.tar.gz
qemu-char: do not operate on sources from finalize callbacks
Due to a glib bug, the finalize callback is called with the GMainContext lock held. Thus, any operation on the context from the callback will cause recursive locking and a deadlock. This happens, for example, when a client disconnects from a socket chardev. The fix for this is somewhat ugly, because we need to forego polymorphism and implement our own function to destroy IOWatchPoll sources. The right thing to do here would be child sources, but we support older glib versions that do not have them. Not coincidentially, glib developers found and fixed the deadlock as part of implementing child sources. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Tested-by: Sander Eikelenboom <linux@eikelenboom.it> Message-id: 1366385529-10329-5-git-send-email-pbonzini@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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