From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f100.google.com (mail-ed1-f100.google.com [209.85.208.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9A3574FDA75 for ; Tue, 13 Oct 2026 13:54:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.100 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791899642; cv=none; b=TY9r66SLUeNpWTRaufdG4NPGctk+AOEzCa0gjYssoMDeStMwu+Mtyvkofb9CSVRs1LH6CCR58sIxJFjVo1S+xeC4QSasieBmxSJD5f2ySxbvXEqufPbTn8s1BZ7jMM8nQPYn5t1ceE2iNU6RF2JiwG4z5+2w+wuc8y0xNBD1J04= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791899642; c=relaxed/simple; bh=o5J0+KXNco+IJMhpygQn4co2RmjJwRnix60H1smEcio=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=P2jRhA+4ALc6zhyu3yGaPn/qcNSR6sclYi+Azf6c7OjHUVjKUtGfl0gvA7RqkS1Y5ByYrCYIoit2EYfSNB11JhdVNR9Y15huA8gdoQNrrFxvJMde2/s82dMPaRtkvCaKtNFbWkuC27hFXShL+pfsY9OH2s7tooYqfdPCpErK+FY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=everpuredata.com; spf=pass smtp.mailfrom=everpuredata.com; dkim=pass (2048-bit key) header.d=everpuredata.com header.i=@everpuredata.com header.b=D3dqb1/K; arc=none smtp.client-ip=209.85.208.100 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=everpuredata.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=everpuredata.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=everpuredata.com header.i=@everpuredata.com header.b="D3dqb1/K" Received: by mail-ed1-f100.google.com with SMTP id 4fb4d7f45d1cf-6b1aa377c61so3373708a12.3 for ; Tue, 13 Oct 2026 06:54:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=everpuredata.com; s=google; t=1791899639; x=1792504439; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=o5J0+KXNco+IJMhpygQn4co2RmjJwRnix60H1smEcio=; b=D3dqb1/KWcsWP36meYm7JFOuKng01U8Mw8BLzrdyXcRt6Yabl0D/pQDe/O9LpmcDQP E5JkSbqGHk3RhITF4noBsH85ct3vp9YC0fHnEbTDJ0hTrL2+1Jg/hDaBEC4vjqc8YeeY tBBTnfZSJXH0Bi/cvt+6Wrk2kooy+tEVrPxPCti2enoDeDmWP85OdowWGqVbUr0g/Y3u gLnYpbxIX6B1fVYNzXMqvLGpDyC1nNirMyaEyofHkU/hwzgRC0IvQWP2oo+VoHheLUWt y0RB4ynO4N9id7LvFyTqKsNkrprUdoOX4fXhC0Aqwj/Au9DeQi/LZ89byj0rgxMfgPnb JzjA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791899639; x=1792504439; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=o5J0+KXNco+IJMhpygQn4co2RmjJwRnix60H1smEcio=; b=Pp5Gpg09hNylrIA+BwRfdvY8AJVotWYq4sK8AVqBo9/4T4GJUDbO7pcKHc3WKd5GGY 8dK7U6/U2zRAirCsNTPBiV9dyPn7EcvYPJoMBDtYp90NQDbu+rE78c8b5mEJ5qb5+QmI agDwJ+WhZIXdvwzbrCioCPgtQZOJXbuKJrRzfhTpuT4JTrzvx5FR/agkDXTOSfF08YQR O/8ZOZHl0vVXqnkSE7nEHK3vwGn/m4c5QW//lvZdU1aKEmBoeEGcAQRiVQy9Upo6EuPV f+MTNZlVAAdgWwxT5m0ngJlyISutyYLQFcNaS/KkBPKXPEvy8Z5VPIhCgeOEoCsgdavG LM3w== X-Forwarded-Encrypted: i=1; AKwUvByMRqxyLa6rayi5LzdbrhQXb6XqKaj3tFa1Bwu9Gdsa5gGwiZ2Y6PgwdLXCMLLX/319F+Th5khsIyGk2TY=@vger.kernel.org X-Gm-Message-State: AFq9FYIXA6QmUVtzt8Fkv8+KW69tE/ngD17kOdJ7txuXdhh4Z5zxHZt1 XONqszOAc452hykErrI6s867BH70NGN5dbkmO9YA1416ooRhe5LKx5Vqw/Kp20OsN4y0VHnT5/R 5fu9DbVKcRCvoBqyM7D7OwycbcKh8ezRqR/ii X-Gm-Gg: AYBFou3qo/I8m38CD38oOkLR7ofuCjmJ+VAQv1qLDoOVV15ZDku6+X26w0YVj9PbglY t7YPM49C58MElhBvlWmUwv7ssL3jHZtj74JGekGVWVjmsp53neqjflYPIL4DLuDK7bmDI9YRiOk 1ZfG+M9GEG1F7P96grx+J64UfTjxgewT68r+V91x/wJ6KMjOtPfCdsqX3/Ik7DV4nco/ZbHCLPF 4bxqqSoNl24g+XFw7cVcSXpupTNQnKUVB1Lolx9Wo9CReRcDbd9j0bnd7gwmr9zZBVELbluqKry zIwkId3JtTE3OTdPQMAeFTpliWgQZbdPHV8fKnJUOY043ugQx9xJMyH5bkDEMtDaN7jekOF7nF/ b818jkO7Ydb/IGfZrIosAg6yKTtwACjBm2WWiRFs= X-Received: by 2002:a05:6402:52c6:b0:6b1:d8e4:f93 with SMTP id 4fb4d7f45d1cf-6b1d8e42e76mr3457752a12.33.1791899638750; Tue, 13 Oct 2026 06:53:58 -0700 (PDT) Received: from c14-smtp-2023.dev.purestorage.com ([208.88.158.128]) by smtp-relay.gmail.com with ESMTPS id 4fb4d7f45d1cf-6b179dd06b7sm2768511a12.13.2026.10.13.06.53.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Oct 2026 06:53:58 -0700 (PDT) X-Relaying-Domain: everpuredata.com Received: from irdv-tmenninger.dev.purestorage.com (irdv-tmenninger.dev.purestorage.com [10.32.149.15]) by c14-smtp-2023.dev.purestorage.com (Postfix) with ESMTPS id 40832340324; Tue, 13 Oct 2026 06:53:27 -0700 (PDT) From: Tim Menninger To: Trond Myklebust , Anna Schumaker Cc: linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Eric Badger , Jon Curley Subject: Re: [PATCH] NFSv4/pNFS: Preserve layoutreturn seqid while lsegs drain Date: Tue, 13 Oct 2026 13:53:27 +0000 Message-Id: <20261013135327.1695983-1-tmenninger@everpuredata.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260921235520.502987-1-tmenninger@everpuredata.com> References: <20260921235520.502987-1-tmenninger@everpuredata.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi Trond, Anna, Please hold off on applying this patch for now. Further testing has revealed incomplete recovery under sustained pNFS/RDMA I/O. Some workload ranks remain slow after DS recovery, even with the reconnect loop gone. I have not yet established whether this patch is incorrect or exposes another layout-recovery issue. Apologies for the noise. Thanks, Tim