netdev - Re: [v2 PATCH 0/2] rhashtable: rhashtable with duplicate objects

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Message-ID: <1474279827.4469.30.camel@sipsolutions.net>
Date:   Mon, 19 Sep 2016 12:10:27 +0200
From:   Johannes Berg <johannes@...solutions.net>
To:     Herbert Xu <herbert@...dor.apana.org.au>
Cc:     "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        linux-wireless@...r.kernel.org, Thomas Graf <tgraf@...g.ch>,
        tom@...bertland.com, Ben Greear <greearb@...delatech.com>
Subject: Re: [v2 PATCH 0/2] rhashtable: rhashtable with duplicate objects

Btw, for debug I put

BUG_ON(atomic_read(&ht->nelems) < 0);

after the atomic_dec() in __rhashtable_remove_fast_one(). That makes
the kernel crash instantly on the buggy code, and I just have to run a
single test ("wpas_ctrl_interface_add_many") to get there.

johannes