From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jack Wang Subject: Re: list corruption in IPOIB Date: Mon, 20 May 2013 21:57:19 +0200 Message-ID: <519A801F.90506@profitbricks.com> References: <519686B4.7010300@profitbricks.com> <5197F447.5020702@profitbricks.com> <51986A8B.9030806@mellanox.com> <519898B0.1000901@profitbricks.com> <5199E747.3070502@mellanox.com> <519A01DD.6080906@mellanox.com> <519A1C60.4060005@mellanox.com> <519A275B.9070400@mellanox.com> <519A34F9.3080700@profitbricks.com> <519A7BAA.1080008@profitbricks.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Or Gerlitz Cc: Shlomo Pongratz , Jack Wang , Or Gerlitz , "linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Dongsu Park List-Id: linux-rdma@vger.kernel.org On 2013=E5=B9=B405=E6=9C=8820=E6=97=A5 21:50, Or Gerlitz wrote: > On Mon, May 20, 2013 at 10:38 PM, Jack Wang wrote: >> >> The bug in our production environment is introduced in our backport >> about ipoib fixes from mainline, and when we hit that bug we reverte= d >> back to old kernel without the backport patch, and the bug didn't ha= ppen for now. >> >> This list_del_init patch do fix list corruption warning, but it's no= t the one we hit in production, the list corruption is reproduced in ou= r test setup with bug injection patch && iperf -P 50 && mode switch. >> >> Is this clear for you now? >=20 >=20 > NO, you say that the list_del_init patch eliminates the "list > corruption warning", does the "list corruption" is still reproduced i= n > your test setup even when the patch is applied?! what's the trace? > and what is the trace you see in your production when using kernel X > (which?) patches with commit Y (which?) >=20 > Or. >=20 No, the list_del_init fixed the list corruption warning, no list corruption anymore. The trace is in my earlier mail in this thread. Jack -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" i= n the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html