On Fri, Dec 04, 2015 at 09:25:35PM +0100, Dmitry Vyukov wrote: > On Fri, Dec 4, 2015 at 6:48 PM, Marcelo Ricardo Leitner > <marcelo.leitner@xxxxxxxxx> wrote: > > Hi Dmitry, > > > > Can you please test this patch? > > I'll re-post with proper subject if it works. > > Still happening with the same stacks. Then there may be another one, I'm afraid. I'm using the testapp you shared in the first email, with that debug line enabled and added a new one: + pr_debug("%p %d\n", asoc, asoc ? asoc->state : 0); debug_post_sfx(); (should have used %x, but ok) Also enabled slub_debug=PUZ, and I get: without the patch: [ 87.873640] sctp: ffff8800b71533d8 1 [ 87.873647] sctp: sctp_do_sm[post-sfx]: error:0, asoc:ffff8800b71533d8[STATE_CLOSED] [ 87.873739] sctp: ffff8800b71533d8 1 [ 87.873742] sctp: sctp_do_sm[post-sfx]: error:0, asoc:ffff8800b71533d8[STATE_CLOSED] [ 87.875149] sctp: ffff8800b71533d8 1802201963 [ 87.875238] sctp: sctp_do_sm[post-sfx]: error:0, asoc:ffff8800b71533d8[STATE_CLOSED] 1802201963 = 0x6b6b6b6b, poison with the patch: [ 81.071265] sctp: ffff880137571148 1 [ 81.071273] sctp: sctp_do_sm[post-sfx]: error:0, asoc:ffff880137571148[STATE_CLOSED] [ 81.071372] sctp: ffff880137571148 1 [ 81.071375] sctp: sctp_do_sm[post-sfx]: error:0, asoc:ffff880137571148[STATE_CLOSED] [ 81.072423] sctp: (null) 0 [ 81.072427] sctp: sctp_do_sm[post-sfx]: error:0, asoc: (null)[STATE_CLOSED] This one, at least, is gone with this patch. Marcelo -- To unsubscribe from this list: send the line "unsubscribe linux-sctp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html