From nobody Sun Nov 24 15:42:15 2024 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0701B18C025 for ; Mon, 4 Nov 2024 12:41:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730724085; cv=none; b=X/Cpg8VbI+54S+AVPNARh9mWlU2NTyhuFUUPW2RKRWFZSEl9Fu2hELp4WWJYeq8aVI0/vuNkQkpZs0hK9JGUpu9vcwxP3iDpSjFsDWJHBXHlv/Fi5nq5HqL4g0AeLU+1XzCVP/7pf1UqX5MX30dOJaNhpFfzbZ/ee1KXV4hlh1A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730724085; c=relaxed/simple; bh=K2670CLvWu848B9Z+a2LlS5M3E7jNuSgLozZti5polE=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=sQCKJYWT38d1cKmEnAlKXGzWucAMG0prTObjeRP36QYR9Kr1pwgk9YATjeCo/+7cfymvOdDapBC0tY+SsBIlfx3ogD8rZ2tZOU1xpSWJYyNEIS35D976obYckl/c05dL0P5mInGX8UBuPEuTlA/5q+vvFnwJ36HT5uxhH09TR20= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=PtaIRm2e; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="PtaIRm2e" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1730724082; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=aKQ0/YooIp1QYyef8Z9BF7zgosXNwWGR/ZRQNwN6Nbo=; b=PtaIRm2eIcIDb6xUCVhtZ8XvsWUMClLAruk5ffaBgWoRM+Cvii5o/mo+6/LmqjfhpwaAYy dY6HCsMOZaSnAJcZ/9J3wUvJpszNfho8Xez0KfcupbZQD8bw1NS28sequMxK/ObVJz81Bv yohlq0i+u3yPZ4LSTpckISPE77FMcig= Received: from mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-185-JVFTtb9zNw-d_g3XSvp-jg-1; Mon, 04 Nov 2024 07:41:21 -0500 X-MC-Unique: JVFTtb9zNw-d_g3XSvp-jg-1 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 249C81954AE4; Mon, 4 Nov 2024 12:41:18 +0000 (UTC) Received: from wcosta-thinkpadt14gen4.rmtbr.csb (unknown [10.22.64.126]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id D7D66300018D; Mon, 4 Nov 2024 12:41:11 +0000 (UTC) From: Wander Lairson Costa To: Tony Nguyen , Przemek Kitszel , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Sebastian Andrzej Siewior , Clark Williams , Steven Rostedt , intel-wired-lan@lists.osuosl.org (moderated list:INTEL ETHERNET DRIVERS), netdev@vger.kernel.org (open list:NETWORKING DRIVERS), linux-kernel@vger.kernel.org (open list), linux-rt-devel@lists.linux.dev (open list:Real-time Linux (PREEMPT_RT):Keyword:PREEMPT_RT) Cc: tglx@linutronix.de, Wander Lairson Costa Subject: [PATCH] Revert "igb: Disable threaded IRQ for igb_msix_other" Date: Mon, 4 Nov 2024 09:40:50 -0300 Message-ID: <20241104124050.22290-1-wander@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 Content-Type: text/plain; charset="utf-8" This reverts commit 338c4d3902feb5be49bfda530a72c7ab860e2c9f. Sebastian noticed the ISR indirectly acquires spin_locks, which are sleeping locks under PREEMPT_RT, which leads to kernel splats. Signed-off-by: Wander Lairson Costa Reported-by: Sebastian Andrzej Siewior --- drivers/net/ethernet/intel/igb/igb_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethern= et/intel/igb/igb_main.c index b83df5f94b1f..f1d088168723 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -907,7 +907,7 @@ static int igb_request_msix(struct igb_adapter *adapter) int i, err =3D 0, vector =3D 0, free_vector =3D 0; =20 err =3D request_irq(adapter->msix_entries[vector].vector, - igb_msix_other, IRQF_NO_THREAD, netdev->name, adapter); + igb_msix_other, 0, netdev->name, adapter); if (err) goto err_out; =20 --=20 2.47.0