Alan, Dmitry,
I updated the webrev. It now allocates memory dynamically, and asserts
that the number of bytes read is less than the size of sctp_notification
( for notifications ).
http://cr.openjdk.java.net/~chegar/8034181/webrev.01/webrev/
-Chris.
On 22/03/14 08:19, Alan Bateman wrote:
On 22/03/2014 08:13, Chris Hegarty wrote:
The native SCTP implementation assumes that the given byte buffer (
buffer address + position ) is memory aligned. It re-uses the buffer
for handling notifications from the SCTP Stack ( as well as for
reading data off the socket ). This can result in a SIBGUS on
sparc(v9) if the address is not 4 byte aligned [1].
The trivial solution is to copy the SCTP notification into a stack
allocated buffer, for handling, if the given address is not 4 byte
aligned.
http://cr.openjdk.java.net/~chegar/8034181/webev.00/webrev/
It looks like the stack allocated buffer will be out of scope when you
use it and I assume it would be safer to declare buf at L465 or so.
-Alan.
