Date: Mon, 28 Mar 2016 09:09:40 -0700 From: Adrian Chadd <adrian.chadd@gmail.com> To: Maxim Sobolev <sobomax@freebsd.org> Cc: "stable@freebsd.org" <stable@freebsd.org>, FreeBSD Filesystems <freebsd-fs@freebsd.org>, Pawel Jakub Dawidek <pjd@freebsd.org>, Kirk McKusick <mckusick@mckusick.com>, Konstantin Belousov <kib@freebsd.org> Subject: Re: Process stuck in "vnread" Message-ID: <CAJ-VmonDN6RSmLU8W2v4unPhjhCF=_EiLb2rhSkXfyK0y-KowA@mail.gmail.com> In-Reply-To: <CAH7qZfuURZ5SowJ7iHWZyfpeb1ehpCdLGQTnQKLWtwh6um-=KA@mail.gmail.com> References: <CAH7qZfs3EwT8jnKyodHxF_5nK18MeLSaB_F-qqOfwV0MJMD7Vg@mail.gmail.com> <CAH7qZfssCPxc_uuMoxwAqa6qdi1y=VCqRT6hk-=mTU15RwOCAg@mail.gmail.com> <CAH7qZftHP0b30AnF4Fds9%2BotY0Y24HMFuO=RmkqcBJD3wFNkHg@mail.gmail.com> <CAH7qZfuURZ5SowJ7iHWZyfpeb1ehpCdLGQTnQKLWtwh6um-=KA@mail.gmail.com>
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Hi, I think a bunch of the lock order checks with witness get disabled for ZFS ? Maybe compile up a witness kernel so you can get 'show alllocks' in ddb. That should help narrow down exactly what's going on. Thanks! -a
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