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Date:      Fri, 09 Sep 2016 14:40:09 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 211823] [patch] fsck_ffs incorrectly failing in check_cgmagic
Message-ID:  <bug-211823-8-s7DWy7j357@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-211823-8@https.bugs.freebsd.org/bugzilla/>
References:  <bug-211823-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D211823

--- Comment #6 from Christian Heckendorf <heckendorfc@gmail.com> ---
Both variables hold the same value in their internal representation (0xcc00)
but cg_old_niblk overflows into negative values due to type limitations that
fs_ipg doesn't have. Clearly check_cgmagic() thinks the fs data is invalid =
yet
somehow OpenBSD fsck thinks it works and the filesystem in general seems to
work fine on both OS, at least from a basic usage standpoint (I haven't loo=
ked
into anything more than basic I/O and whether fsck says clean or dirty). Is
this check in check_cgmagic meant to compare internal representations or th=
eir
signed/unsigned integer values?

Is general compatibility between UFS in OpenBSD and FreeBSD purely accident=
al?
If so, I'll drop the issue.

--=20
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