This behavior is a bug. I've opened a Jira:
----- Original Message -----
> From: "serega" <sergejs.melde...@sap.com>
> To: email@example.com
> Sent: Monday, February 10, 2014 4:29:25 AM
> Subject: Re: Qpid Proton messenger on 32 bit linux
> I use Proton with SwiftMQ broker which by default advertises
> max-frame-size=2147483647. Then realloc fails to allocate a memory region
> inside pn_buffer_ensure( disp->frame, disp->remote_max_frame) followed by a
> crash when disp->frame is used. Fortunately max-frame-size is configurable
> in SwiftMQ. I changed it to "65536" and Proton works now.
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> Sent from the Apache Qpid Proton mailing list archive at Nabble.com.