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Date:      Thu, 2 Jul 2015 11:49:10 +0200
From:      Pawel Jakub Dawidek <pjd@FreeBSD.org>
To:        =?iso-8859-1?Q?Jos=E9_Garc=EDa?= Juanino <jjuanino@gmail.com>
Cc:        "Matthew D. Fuller" <fullermd@over-yonder.net>, freebsd-geom@freebsd.org
Subject:   Re: geli panics my system after suspend-resume: g_eli_orphan_spoil_assert() called for cd0.eli
Message-ID:  <20150702094909.GA1186@garage.freebsd.pl>
In-Reply-To: <CAAVO5%2BK4LjjdMStpeOCDu9NH_u%2BJT48=%2BgKVycocGuuPqfUNoA@mail.gmail.com>
References:  <CAAVO5%2BLR9MfHvt0tR5G4FyXKRt_hzkR3ZKUxvEA8Z%2BjWuEFq3g@mail.gmail.com> <20150613224602.GB1733@over-yonder.net> <CAAVO5%2BJTeZBqLZmd5t_riNmChgH8YH76DurJ_TUumFfgnVvpZg@mail.gmail.com> <20150615060128.GC1733@over-yonder.net> <20150629013011.GN50491@over-yonder.net> <20150701154233.GA1456@garage.freebsd.pl> <20150701193027.GT50491@over-yonder.net> <CAAVO5%2BK4LjjdMStpeOCDu9NH_u%2BJT48=%2BgKVycocGuuPqfUNoA@mail.gmail.com>

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On Thu, Jul 02, 2015 at 12:53:12AM +0200, Jos=E9 Garc=EDa Juanino wrote:
> On 1 July 2015 at 21:30, Matthew D. Fuller <fullermd@over-yonder.net> wro=
te:
> > On Wed, Jul 01, 2015 at 05:42:33PM +0200 I heard the voice of
> > Pawel Jakub Dawidek, and lo! it spake thus:
> >>
> >> The spoil event happens when provider is open for writting for the
> >> first time (its open-for-write counter goes from 0 to >0). Since
> >> GELI opens its providers always exclusively there can be no write
> >> opens, thus the spoil event is unexpected.
> >
> > Well, from OP
> > (https://lists.freebsd.org/pipermail/freebsd-current/2015-June/056193.h=
tml)
> > it's coming from a CD media change event.  The BT linked from the mail
> > shows.
> >
> > panic() at panic+0x43/frame 0xfffffe011ba81b00
> > g_eli_orphan_spoil_assert() at g_eli_orphan_spoil_assert+0x1f/frame 0xf=
ffffe011ba81b10
> > g_spoil_event() at g_spoil_event+0x72/frame 0xfffffe011ba81b40
> > g_media_changed_event() at g_media_changed_event+0x68/frame 0xfffffe011=
ba81b70
> > g_run_events() at g_run_events+0x1a7/frame 0xfffffe011ba81bb0
> >
> >
> >> To see what exactly is happening I'd need to see the console output
> >> from before that happens with kern.geom.debugflags set to 5.
> >
> > 'd have to talk to Jos=E9 for that; added him back to CC.
>=20
> Hi, thanks for your support!
>=20
> You can see the console output here, after setting
> kern.geom.debugflags=3D5 in /boot/loader.conf:
>=20
> http://picpaste.com/panic_geli.jpg
>=20
> Previously, I ran:
>=20
> # geli attach -r /dev/cd0
> # mount /dev/cd0.eli /cdrom
>=20
> ### close the laptop lid and waits a few seconds. The system suspends.
> ### open the laptop again. The system resumes. Wait a few seconds: the
> system panics.

THank you for the screenshot. My assumptions are out-dated. With
g_media_changed() we can get spoil event even if we hold provider
exclusively open. Your patch, Matthew, is correct, but could you also
update the comment there to take into account g_media_changed()
addition?

Thanks.

--=20
Pawel Jakub Dawidek                       http://www.wheelsystems.com
FreeBSD committer                         http://www.FreeBSD.org
Am I Evil? Yes, I Am!                     http://mobter.com

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