One run extending into another in jemalloc-3.5.1 ?

Jason Evans jasone at
Tue Apr 19 10:01:32 PDT 2016

On Apr 18, 2016, at 11:12 PM, Chaitanya Patti <cpatti at> wrote:
> I am debugging a memory de-allocation issue. We are using jemalloc version 3.5.1. It looks like a run with reg_size 224 and total size of 4 pages has "extended" into an adjacent run, and corrupted the adjacent run. Has such an issue been seen before ? 

That usually means that a double free corrupted metadata for the adjacent run.  If you have a repeatable test case, try running with a debug build of jemalloc, and disable tcache, so that assertions immediately detect double frees.


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