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Date: Wed, 22 Jan 2014 13:32:01 +0200
From: Andriy Gapon <avg@FreeBSD.org>
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Subject: core dump vs kern.ipc.shm_use_phys
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I seems that if kern.ipc.shm_use_phys is enabled then shared memory regions are
not included into a coredump.  Seems that each_writable_segment() in
sys/kern/imgact_elf.c skips OBJT_PHYS objects.

-- 
Andriy Gapon