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Date:      Sat, 27 Jun 2020 14:29:16 +0200
From:      Polytropon <freebsd@edvax.de>
To:        admin@cpcnw.co.uk
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Mozilla Crasher
Message-ID:  <20200627142916.eca027b9.freebsd@edvax.de>
In-Reply-To: <4db98700-cc7d-52e0-2395-3645c7a7bf1e@cpcnw.co.uk>
References:  <mailman.85.1593172801.49104.freebsd-questions@freebsd.org> <4db98700-cc7d-52e0-2395-3645c7a7bf1e@cpcnw.co.uk>

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On Sat, 27 Jun 2020 09:10:23 +0100, Graham Bentley wrote:
> Have done two installs to ext usb ssd from most recent .iso, one several 
> weeks ago from packages adding as I went along. The second a few days 
> ago from same disc but adding all the packages I needed at once. In both 
> cases updated / upgraded packages very recently. On the first, Firefox 
> runs like a champ and is rock sold, on the second it crashes badly and 
> takes down X with Fatal IO Error.

This might be related to filesystem inconsistencies.
In addition to what Ralf already suggested, boot the
system in single-user mode and perform a forced fsck
of all related filesystems. Verify _first_ that all
filesystems are clean and consistent in order to get
valid results from all further experiments.



> Where would I start trying to figure 
> out; * What is the difference between the two installs

Only you can tell. :-)



> * How to track 
> down the cause of the crashes

Run Firefox from within a terminal so you can see
possible error messages as they occur.

In worst case, you can use the "truss" program to
find out _where_ exactly Firefox is crashing.




-- 
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...



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