From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1D0C8C71153 for ; Sun, 10 Sep 2023 21:31:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229826AbjIJVbx (ORCPT ); Sun, 10 Sep 2023 17:31:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34200 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229726AbjIJVbx (ORCPT ); Sun, 10 Sep 2023 17:31:53 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 792EDB9 for ; Sun, 10 Sep 2023 14:31:48 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 062C2C433C9; Sun, 10 Sep 2023 21:31:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1694381508; bh=CGEWkSmo06QnJOCmUm5dl7oigYloQ1cYL9WoDlueit8=; h=Date:To:From:Subject:From; b=Fka4VigOMIxKMvdk4b5ctoXR35+L18jSVqIgZ1sQVYtF6QOc1fmn+yPB1W6A5B9mw QlccyuqIyi9goG2g3Q3FvQY2Dn66CPCK3KIVhWznAaD9oyui3sf+Y3ougdLYY87riY +KDXGQ+/wr9lXof/w9OHL0nDv3a0MPo9AI0s+urM= Date: Sun, 10 Sep 2023 14:31:47 -0700 To: mm-commits@vger.kernel.org, angus.chen@jaguarmicro.com, akpm@linux-foundation.org From: Andrew Morton Subject: + mm-vmscan-print-err-before-panic.patch added to mm-unstable branch Message-Id: <20230910213148.062C2C433C9@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: mm/vmscan: print err before panic has been added to the -mm mm-unstable branch. Its filename is mm-vmscan-print-err-before-panic.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-vmscan-print-err-before-panic.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Angus Chen Subject: mm/vmscan: print err before panic Date: Wed, 6 Sep 2023 16:37:00 +0800 If panic is enable,the err information will not be printed before bugon, So swap it. Print the return value of PTR_ERR(pgdat->kswapd) also. Link: https://lkml.kernel.org/r/20230906083700.181-1-angus.chen@jaguarmicro.com Signed-off-by: Angus Chen Signed-off-by: Andrew Morton --- mm/vmscan.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/mm/vmscan.c~mm-vmscan-print-err-before-panic +++ a/mm/vmscan.c @@ -7917,8 +7917,9 @@ void __meminit kswapd_run(int nid) pgdat->kswapd = kthread_run(kswapd, pgdat, "kswapd%d", nid); if (IS_ERR(pgdat->kswapd)) { /* failure at boot is fatal */ + pr_err("Failed to start kswapd on node %d，ret=%ld\n", + nid, PTR_ERR(pgdat->kswapd)); BUG_ON(system_state < SYSTEM_RUNNING); - pr_err("Failed to start kswapd on node %d\n", nid); pgdat->kswapd = NULL; } } _ Patches currently in -mm which might be from angus.chen@jaguarmicro.com are mm-vmscan-print-err-before-panic.patch