RE: Bash crash

[Kai Wang X]

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/