[Crash-utility] [PATCH] improve the performance of kmem -p

[Dave Anderson]

----- Original Message -----
> 
> 
> ----- Original Message -----
> > Hello Dave,
> > 
> > While I am using 'kmem -p', I feel it is too slow, especially with a big
> > memory. So I modify something to improve the performance.
> > 
> > The patch is based on crash 6.0.2, and it has been tested on
> > RHEL6.2_x86_64, RHEL6.2_i386, RHEL5.8_x86_64 and RHEL5.8_i386.
> > 
> > Thanks,
> > Qiao Nuohan
> 
> This patch works pretty well -- the only thing I will change is that
> the outputbuffer should be allocated/freed with GETBUF()/FREEBUF().
> When you directly call malloc()/free(), and then any kind of fatal
> error occurs, or if you enter CTRL-C before the command completes, then
> the 1MB buffer would get leaked.  Any buffer allocated with GETBUF()
> is guaranteed to be freed by restore_sanity() prior to the next
> command prompt.  (FREEBUF() is never necessary, just good practice.)
> 
> I'll test this on a set of different kernels tonight.
> 
> Thanks,
>   Dave

Queued for crash-6.0.3

Dave