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Subject: Re: Panic when doing installworld/kernel with DESTDIR=USB memory
To: "Lundberg, Johannes" <johannes@brilliantservice.co.jp>,
 FreeBSD Current <freebsd-current@freebsd.org>,
 "freebsd-usb@freebsd.org" <freebsd-usb@freebsd.org>
References: <CAASDrVnJnOQeVEb3p8g6NE-tjTK3ZVrCjT2CxEvDXObtw8A3Jw@mail.gmail.com>
From: Hans Petter Selasky <hps@selasky.org>
Message-ID: <f6043563-5641-92f7-c8d3-b60307f42fa7@selasky.org>
Date: Thu, 2 Jun 2016 18:42:31 +0200
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On 06/02/16 17:46, Lundberg, Johannes wrote:
> Hi
>
> I have a repeatable bug. I get kernel panic when doing installworld/kernel
> to a USB 3.0 memory on Macbook Air (USB 3.0 port I think). FreeBSD is
> 11.0-CURRENT from Apr 27th.
>
> This can be avoided by mounting synchronized (mount -o sync).
>
> Is this a known problem? If not I might be able to try get a core dump and
> investigate further.
>

Can you get a backtrace of the panic w/ or w/o debug symbols?

Possibly not USB related. Are you using fuse?

--HPS