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References: <EC918951-4A16-4469-B057-5DEC00041699 AT Denis-Excoffier DOT org> <20170717083549 DOT GA3345 AT calimero DOT vinschen DOT de> <20170717090522 DOT GB3345 AT calimero DOT vinschen DOT de>
From: Erik Bray <erik DOT m DOT bray AT gmail DOT com>
Date: Tue, 18 Jul 2017 17:49:00 +0200
Message-ID: <CAOTD34bWPjLbKUJjiyCY23G9ZbjfCkyNepqd3g+0xKc49A+OFw@mail.gmail.com>
Subject: Re: rebase segmentation fault
To: cygwin AT cygwin DOT com
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On Mon, Jul 17, 2017 at 11:05 AM, Corinna Vinschen wrote:
> On Jul 17 10:35, Corinna Vinschen wrote:
>> On Jul 16 19:16, Denis Excoffier wrote:
>> > Hello,
>> >
>> > I have a Cygwin installation under Windows 7 (32 bits).
>> >
>> > After 'rebase-trigger full' and 'Setup', autorebase seems to finish
>> > okay, but the /etc/rebase.db.i386 remains absent after that.  Not a
>> > real problem after all (since rebase was functioning well until some
>> > recent date and all is already rebased), but some third party builds
>> > (like e.g. perl) insist on the presence of the /etc/rebase.db.i386
>> > database.
>> >
>> > Indeed, rebase segfaults in rebase.c and nothing is rebased. This
>> > occurs (see rebase-4.4.2) immediately after "Skip trailing entries as
>> > long as there is no hole." because at some point, all
>> > img_info_list[end].base are equal to 0, the while() is getting always
>> > true, and the variable 'end' is decremented by 1 at every iteration,
>> > until it reaches -1 where the segfault occurs.
>>
>> Patches welcome!
>
> Never mind:
>
> https://sourceware.org/git/?p=cygwin-apps/rebase.git;a=commitdiff;h=a7d415a

Thanks! I've been bitten by this in the past as well, but wasn't
sufficiently motivated to chase down the fix once I knew what the
problem was :)

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