[Crash-utility] [RFC PATCH v2 0/2] Show memory overcommit data in dump_kmeminfo()

Dave Anderson anderson at redhat.com
Wed Dec 3 15:18:39 UTC 2014



----- Original Message -----
> On Tue 2014-12-02 12:11 -0500, Dave Anderson wrote:
> > Hi Aaron,
> >
> > I've got a RHEL4 kernel which shows a COMMIT LIMIT of zero, and then
> > dies with a SIGFPE:
> [ ... ]
> > Program received signal SIGFPE, Arithmetic exception.
> > dump_kmeminfo () at memory.c:7970
> > 7970						/ allowed) : 0;
> 
> OK.
> 
> > So there also needs to be an allowance for this:
> [ ... ]
> >   crash> p sysctl_overcommit_ratio
> >   sysctl_overcommit_ratio = $2 = 0
> >   crash>
> 
> Quick question, would you prefer to silently bail out of displaying memory
> over commitment details in the event of a 0 value for "allowed" or print as
> follows:
> 
>    COMMIT LIMIT        0            0         ----
>       COMMITTED  1150595       4.4 GB         ----

I guess I would prefer the above, unless you feel that it's misleading?

Dave

 




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