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List:       dragonfly-users
Subject:    Re: KQEMU 1.4.0pre1 for QEMU 0.10.1
From:       Stathis Kamperis <ekamperi () gmail ! com>
Date:       2009-04-23 12:12:27
Message-ID: 2218b9af0904230506h26e0773el3a3284e38ed0da36 () mail ! gmail ! com
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2009/4/23 Johannes Hofmann <johannes.hofmann@gmx.de>:
> When unloading kqemu.ko I get:
> destroy_dev(): too few references on device! 0xc33746d8
> kqemu(minor=00000000) refs=1
>
> A subsequent kldload ./kqemu.ko panics the system with
> assertion: sr->refcnt == 0 in sysref_alloc

When you create a device and plan to destroy it later on, you have to
take a reference on it.
See DEV_MODULE(9) for an example and make_dev(9).

Thanks!

Cheers,
Stathis



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