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Date: Fri, 12 Dec 2014 11:01:10 +0100
Message-ID: <CAHYJk3Q26_L_rrAk2ENk8jv9Tmu=GaywzoHLTOeU1YLn1YD47g@mail.gmail.com>
Subject: Re: zsh history bug ?
From: Mikael Magnusson <mikachu@gmail.com>
To: Bernhard Tittelbach <xro@realraum.at>
Cc: Bart Schaefer <schaefer@brasslantern.com>, 
	"zsh-workers@zsh.org >> Zsh hackers list" <zsh-workers@zsh.org>
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On Fri, Dec 12, 2014 at 10:48 AM, Bernhard Tittelbach <xro@realraum.at> wrote:
> Am 2014-12-10 um 18:19 schrieb Bart Schaefer:
>> On Dec 10,  6:23am, Bernhard Tittelbach wrote:
>>
>> I'm not able to reproduce this on MacOS (the platform where the bug
>> originally was reported, IIRC).
>>
>> Here was the patch:
>>
>> 2013-09-26  Barton E. Schaefer  <schaefer@zsh.org>
>>
>>         * 31770: Src/hist.c: memmove() instead of memcpy() for overlapping
>>         regions.
>>
>> I've re-checked Src/hist.c and there are no other cases where memcpy() is
>> being used except with a newly-allocated buffer as the destination (so, no
>> overlapping regions).
>>
>> } >> When I previously encountered the bug, I believe only the lookup from
>> } >> history was garbled, i.e. the contents of .zsh_history were fine.
>> } >> I'll have to confirm this on a different system though.
>>
>> Are you sharing history via a network-mounted home directory from
>> multiple hosts?
> The home directories are on local drives only.
> I don't share history between computers at all.
>>[...]
> Originally, on the x86_64 machine, I was running zsh 5.0.3 from the
> Ubuntu Package,
> but per your suggestion I compiled 5.0.7 from source last month. The bug
> persisted until
> Mikael suggested setting "nohistreduceblanks" i.e. disabling
> "histreduceblanks"
>
> Since then I've not encountered the bug anymore or at least the bug has
> become so seldom
> I've not encountered it yet again within the last month. Previously It
> appeared about once in a day of work on the shell.

Are you totally sure there were no more 5.0.3 instances running at
that time? Or are you saying it works with histreduceblanks enabled
again?

-- 
Mikael Magnusson