[linuxsh-dev] slab poisoning

[Stuart M. <Stu...@st...>]

Folks

I've been chasing a problem for a few hours now, and I was just wondering if
anyone else has seen it.

When using the ST-NIC Ethernet interface on the 7750 Solution Engine,
and transferring a fairly large (~ 0.5Mb) using FTP, I start getting the
error message:
  kmem_alloc: Bad poison (name=size-2048)

A big of digging appears to show that an Ethernet frame is being written
into a slab of memory which is on the free list. I can't believe this
is a generic kernel/driver/mm problem, otherwise it would have been
fixed by now, but equally I can't see anything SuperH specific about this
either.

Any ideas anyone?

Stuart