RE: Bash crash

[Kai Wang X]

Hi all,

Thank you all!

The issue happens since we added a new process launched by a bash script. 
Before that, no "sbrk issues" were found and hundreds of process including 
scripts were running in my equipment. So it is hard for me to believe that 
there are RAM or sbrk issues already exist on my system. Also bash is used by 
more users world-wide, so ... I am being confused...

The process named "com" launched by script command "com.sh start". Pls refer to 
the attached files. It looks easy, doesn't it?

@Piotr,

Sure. Every equipment has the possibility of the issue.


-----Original Message-----
From: Piotr Grzybowski [mailto:narsil.pl@gmail.com] 
Sent: 2015年10月21日 19:27
To: Kai Wang X
Subject: Re: Bash crash

hello,

 does the problem also appear on other pieces of equipment? I mean, different 
phisical machine, of the same sort?

pg





On Wed, Oct 21, 2015 at 4:29 AM, Kai Wang X <kai.x.wang@ericsson.com> wrote:
> Hi Chet,
>
> Thank you for your response.
>
> But it does not make sense since sbrk failure will be checked:
>
>   mp = (union mhead *) sbrk (sbrk_amt);
>
>   /* Totally out of memory. */
>   if ((long)mp == -1)
>     goto morecore_done;
>
> The script just runs when my equipment boots up. Also it is hard to reproduce 
> in my environment. Only every few times of my equipment booting up, it 
> generates a coredump file.
>
> -----Original Message-----
> From: Chet Ramey [mailto:chet.ramey@case.edu]
> Sent: 2015年10月20日 21:31
> To: Kai Wang X; bug-bash@gnu.org
> Cc: chet.ramey@case.edu
> Subject: Re: Bash crash
>
> On 10/19/15 10:47 PM, Kai Wang X wrote:
>> Dear,
>>
>>
>>
>> We have two products which are using bash 4.2 and 4.3 separately. 
>> They all meet bash crash issue. Please refer to the attached files.
>>
>> It is hard for me to understand the bash source code to find the root 
>> cause out.
>
> It really looks like sbrk(2) is failing here, but since I don't have any way 
> to reproduce it, that may not be it.  This could be caused by your process 
> exceeding its memory resource limit or your system's swap space being 
> exhausted.
>
> Chet
>
> --
> ``The lyf so short, the craft so long to lerne.'' - Chaucer
>                  ``Ars longa, vita brevis'' - Hippocrates
> Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/

com.sh
Description: com.sh