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authorAndrew Yourtchenko <ayourtch@gmail.com>2018-11-26 15:40:20 +0100
committerDave Barach <openvpp@barachs.net>2018-11-26 17:09:01 +0000
commit37f44563637d2fa2fe454fd8c100958ec9b7a754 (patch)
tree4173b7d133a0477efb583eb0e846e938f1ab816c /docs/gettingstarted/users
parent2af0e3a74c40e5df946813324574ccc18feb4761 (diff)
vppinfra: prevent dlmalloc from allocating memory via mmap_alloc()
If the heap does not have enough space to satisfy allocation request, the allocator calls sys_alloc(). There, if the request is bigger than mparams.mmap_threshold, the mmap_alloc() is called to allocate memory via a direct mmap call. The resulting allocated memory is properly recognized by clib_mem_is_heap_object() only for the first such request. Subsequent requests overwrite the tracking data, resulting in previously "valid" addresses become invalid, as seen by clib_mem_is_heap_object(). The result is a misleading behavior which masks other issues. This is a temporary change to avoid the affected codepath until there is a proper fix to track the directly mmap-allocated memory. Change-Id: I4137f91b5196d4503c40cf8ecc2f71554bc8f858 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
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