[dpdk-dev] [PATCH] eal: protect malloc stats with lock

Thomas Monjalon thomas at monjalon.net
Fri Jan 12 15:42:19 CET 2018


21/12/2017 18:32, Anatoly Burakov:
> When we're gathering statistics, we are traversing the freelist,
> which may change under our feet in multithreaded scenario. This
> is verified by occasional segfaults when running malloc autotest
> on a machine with big amount of cores.
> 
> This patch protects malloc heap stats call with a lock. It changes
> its definition in the process due to locking invalidating the
> const-ness, but this isn't a public API, so that's OK.
> 
> Cc: stable at dpdk.org
> Signed-off-by: Anatoly Burakov <anatoly.burakov at intel.com>

Applied, thanks



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