From patchwork Mon Nov 27 07:04:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?S3Vhbi1ZaW5nIExlZSAo5p2O5Yag56mOKQ==?= X-Patchwork-Id: 13469239 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 56697C4167B for ; Mon, 27 Nov 2023 07:26:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:CC:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=9bckHyNJG5IsDCmEKDwalIObMqsZcNV3+pMVYGOWkZA=; b=uvYeIDZtwSpmdWZP75Us6GfWxE di1DP/0e7SDzQqS4RL9AigOESGICSJbX4MAxVemUsaLp7Q39MDKB6cqXvmSgOcSrS4dqpca4h9Ry6 HSK1+1UtG6p+LWy43k2UT6x+MgKMESw+HzkuC5SJ+RGvx8oixZ9kz+lB3NBc/dVwAZsv54N45tj6Q NkSuoOvPs5IXXFvfUp8NPP+mYM5zPJJHnft3kJTFCJGchNfRRIMCet5b3prkmGCqiDCVz2iSco0B/ SgppllkevXuqXWqEIiTMjS8zLi9JL4227ZTQ0kaaOfHclnAGXiuJaGetNzFdtTL3h7Ve3F6+9b3yD pUEZ0kgA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1r7W0G-001jAG-3C; Mon, 27 Nov 2023 07:26:00 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1r7W0D-001j9Y-0V; Mon, 27 Nov 2023 07:25:58 +0000 X-UUID: 31f8b57a8cf611ee9b7791016c24628a-20231127 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=9bckHyNJG5IsDCmEKDwalIObMqsZcNV3+pMVYGOWkZA=; b=Ir7dyl8PjdmMjC+E7j7WJKdu7+hMtFfdIN58H9s//k+s7NSqJSzGhW86Vxfc6zWzeQVyThe33zlJ/oSxxEjzKQ2OFFg2OSgpkYT7+DXd9XHueqj4wspARvc+3LBdMRyIG6JfYuYsPX8AUS7ktTJTrce9aa9tdw9wQCbf/D1+z48=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.34,REQID:a6da6c24-a2f3-4301-b28e-f6fee4f9b537,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:abefa75,CLOUDID:60011c73-1bd3-4f48-b671-ada88705968c,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:11|1,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR: NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_ULN X-UUID: 31f8b57a8cf611ee9b7791016c24628a-20231127 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 2026218972; Mon, 27 Nov 2023 00:25:52 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Mon, 27 Nov 2023 15:05:16 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Mon, 27 Nov 2023 15:05:16 +0800 From: Kuan-Ying Lee To: Jan Kiszka , Kieran Bingham , Matthias Brugger , AngeloGioacchino Del Regno , Andrew Morton , Oleg Nesterov CC: , , , , Kuan-Ying Lee , , , , Subject: [PATCH 1/3] scripts/gdb/tasks: Fix lx-ps command error Date: Mon, 27 Nov 2023 15:04:01 +0800 Message-ID: <20231127070404.4192-2-Kuan-Ying.Lee@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20231127070404.4192-1-Kuan-Ying.Lee@mediatek.com> References: <20231127070404.4192-1-Kuan-Ying.Lee@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--4.762900-8.000000 X-TMASE-MatchedRID: TCPSmmY0AVNXKLar1IWcqhIRh9wkXSlFBdebOqawiLujC1E/zCEIr8Rk oeJ3OFRc3k+CPiKHMcLBSaBGgOy3GNEdmUPXI8FxWd1vvclMcXUUqWKocoJo6WrVm7PW4m4IaUX s6FguVy2veSUy9VcQXIAy6p60ZV62fJ5/bZ6npdjKayT/BQTiGmKd6TrD/tOxJTyu087Bl/3dU/ 0piiw/KVY8fik7GhBq/WJMB7lBUBeC/0zoitWvtG59So5u9ctjsIj++Y58d/rqkfDrTAOo86CjN WMcfCKKdATQdtPksR+3/JiWOe6GXXSWgQ2GpXdZbxffl9hhCBw= X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--4.762900-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 29868F287BE6268FBBD8E35727CAA5215BC88AFF032D54227874052E0B4452B82000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231126_232557_203770_85D4ABD5 X-CRM114-Status: UNSURE ( 8.97 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Since commit 8e1f385104ac ("kill task_struct->thread_group") remove the thread_group, we will encounter below issue. (gdb) lx-ps TASK PID COMM 0xffff800086503340 0 swapper/0 Python Exception : There is no member named thread_group. Error occurred in Python: There is no member named thread_group. We use signal->thread_head to iterate all threads instead. Fixes: 8e1f385104ac ("kill task_struct->thread_group") Cc: stable@vger.kernel.org Signed-off-by: Kuan-Ying Lee --- scripts/gdb/linux/tasks.py | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/scripts/gdb/linux/tasks.py b/scripts/gdb/linux/tasks.py index 17ec19e9b5bf..7c32f4c8284b 100644 --- a/scripts/gdb/linux/tasks.py +++ b/scripts/gdb/linux/tasks.py @@ -13,7 +13,7 @@ import gdb -from linux import utils +from linux import utils, lists task_type = utils.CachedType("struct task_struct") @@ -25,13 +25,9 @@ def task_lists(): t = g = init_task while True: - while True: - yield t - - t = utils.container_of(t['thread_group']['next'], - task_ptr_type, "thread_group") - if t == g: - break + thread_head = t['signal']['thread_head'] + for thread in lists.list_for_each_entry(thread_head, task_ptr_type, 'thread_node'): + yield thread t = g = utils.container_of(g['tasks']['next'], task_ptr_type, "tasks")