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Subject: Re: ib_unregister_device - OFED related question
To: "Somayajulu, David" <David.Somayajulu@cavium.com>,
 "freebsd-drivers@freebsd.org" <freebsd-drivers@freebsd.org>,
 "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>
References: <MWHPR0701MB372139C2DA2DA94DD7F8FF95EE460@MWHPR0701MB3721.namprd07.prod.outlook.com>
From: Hans Petter Selasky <hps@selasky.org>
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Date: Sat, 7 Jul 2018 14:38:32 +0200
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On 07/07/18 02:49, Somayajulu, David wrote:
> We see that module_unload() grabs the Gaint Lock prior to invoking UNLOAD. Isn't this a problem with cma_process_remove() or am I missing something?

Hi,

The LinuxKPI should DROP_GIANT and PICKUP_GIANT when sleeping. I haven't 
checked FreeBSD 10 recently, but this is the case for FreeBSD 11 and 
FreeBSD 12.

--HPS