[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: "HISTSIZE=999999999" cause bash failure after lastest upgrade

From: Chet Ramey
Subject: Re: "HISTSIZE=999999999" cause bash failure after lastest upgrade
Date: Wed, 5 Oct 2016 09:16:11 -0400
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.3.0

On 9/25/16 6:59 PM, Chet Ramey wrote:
> On 9/25/16 3:51 PM, Sean Zha wrote:
>> Bash Version: 4.4
>> Patch Level: 0
>> Release Status: release
>> Description:
>>      I use a huge value for HISTSIZE (=999999999) to enable infinite
>>      history items. The actural size of ~/.bash_history is only 4MB now.
>>      Everything worked fine before the lastest upgrade. Now bash refuse
>>      me to login due to memory allocation failure. After choosing
>>      a smaller HISTSIZE, bash still eatup too much unnesssary memory.
>> Repeat-By:
>>      open a workable terminal with small HISTSIZE setting,
>>      $ echo HISTSIZE=999999999 > ~/test.rc
>>      $ bash --rcfile ~/test.rc
>>        bash: xmalloc: cannot allocate 8000000008 bytes (114688 bytes 
>> allocated)
> Since you've specified the desired history size, bash tries to allocate
> enough entries to hold all of the entries.  The assumption is that this
> will reduce the number of allocations/reallocations and the number of
> times the history list has to be copied as it's reallocated.  I suppose
> I should cap the maximum value for which that occurs instead of trusting
> the supplied max number of entries.

Try the attached patch and see whether or not it improves things.

``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/

Attachment: history-alloclist.patch
Description: Text Data

reply via email to

[Prev in Thread] Current Thread [Next in Thread]