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Date: Tue, 23 Apr 1996 03:39:57 +1000
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199604221739.DAA13067@godzilla.zeta.org.au>
To: current@freebsd.org
Subject: gzip bug
Cc: dyson@freebsd.org, phk@freebsd.org
Sender: owner-current@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

The gzip bug was introduced in the big vm patch on 1996/01/19.

It seems to have nothing to do with any of the vm things in imgact_gzip.c.
I replaced the input file accesses in NextByte() by accesses to an array
of bytes and Flush() by return (ENOEXEC).  This made inflate() do nothing
fancier than malloc() and free(), but it still sometimes hung and sometimes
rebooted.  A user mode version of this worked fine.

Some of the reboots went through the double fault handler but none of them
stopped in ddb.

Bruce