Re: Kernel 4.1.6 Panic due to slab corruption

From: Christoph Lameter
Date: Wed Sep 09 2015 - 13:58:42 EST


On Wed, 9 Sep 2015, Vlastimil Babka wrote:

> On 09/09/2015 04:01 PM, Christoph Lameter wrote:
> > On Wed, 9 Sep 2015, Nikolay Borisov wrote:
> >
> > What does:
> >
> > echo 1 >trace
> >
> > do? Could crash the sysem due to overload of messages.
>
> Yes I've seen that happen. Did you consider hooking it to trace_printk()
> instead of printk()?

The code was there earlier than trace_printk as far as I can tell and the
formatting functions are based on printk.

Hmmm.. the pr_info in the trace() function could use trace_printk() but
that leaves the stack_dump().

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