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Date:      Sun, 14 Apr 2013 11:19:41 -0600
From:      Warner Losh <imp@bsdimp.com>
To:        Damjan Marion <damjan.marion@gmail.com>
Cc:        "freebsd-arm@FreeBSD.org" <freebsd-arm@freebsd.org>
Subject:   Re: __rw_wlock_hard panic on 1st malloc
Message-ID:  <8DE83B01-4508-41C5-B2BD-95A72D0AD963@bsdimp.com>
In-Reply-To: <DB4E4AA0-91D8-4253-8044-9C33B60E1A3A@gmail.com>
References:  <DB4E4AA0-91D8-4253-8044-9C33B60E1A3A@gmail.com>

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Maybe you are calling malloc before these locks are initialized?

Warner

On Apr 14, 2013, at 5:03 AM, Damjan Marion wrote:

>=20
> Hi,
>=20
> I'm playing a bit with i.MX6 based board (wandboard) and I have serial =
console working but
> now it panics in init_dynamic_kenv() with the following error:
>=20
> panic: __rw_wlock_hard: recursing but non-recursive rw pmap pv global =
@ /usr/src/sys/arm/arm/pmap-v6.c:1187
>=20
> It looks like this is the 1st place where malloc() is called, an =
malloc returns valid VA
> but 1st attempt to access that address produces panic above.
>=20
> Any idea what can be the reason for this or any other hint?
>=20
> Thanks,
>=20
> Damjan
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