From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH v2] rds: rds-stress show all zeros after few minutes Date: Thu, 31 Mar 2016 16:02:46 -0400 (EDT) Message-ID: <20160331.160246.2179579552166806534.davem@davemloft.net> References: <1459405762-29778-1-git-send-email-shamir.rabinovitch@oracle.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: rds-devel@oss.oracle.com, netdev@vger.kernel.org To: shamir.rabinovitch@oracle.com Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:58395 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752826AbcCaUCr (ORCPT ); Thu, 31 Mar 2016 16:02:47 -0400 In-Reply-To: <1459405762-29778-1-git-send-email-shamir.rabinovitch@oracle.com> Sender: netdev-owner@vger.kernel.org List-ID: From: shamir rabinovitch Date: Thu, 31 Mar 2016 02:29:22 -0400 > Issue can be seen on platforms that use 8K and above page size > while rds fragment size is 4K. On those platforms single page is > shared between 2 or more rds fragments. Each fragment has its own > offset and rds congestion map code need to take this offset to account. > Not taking this offset to account lead to reading the data fragment > as congestion map fragment and hang of the rds transmit due to far > congestion map corruption. > > Signed-off-by: shamir rabinovitch > > Reviewed-by: Wengang Wang > Reviewed-by: Ajaykumar Hotchandani > Acked-by: Santosh Shilimkar > Tested-by: Anand Bibhuti This doesn't apply cleanly to my current tree, please respin.