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 190D9C433FE for ; Mon, 10 Oct 2022 05:18:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230454AbiJJFSV (ORCPT ); Mon, 10 Oct 2022 01:18:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54694 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229854AbiJJFST (ORCPT ); Mon, 10 Oct 2022 01:18:19 -0400 Received: from out2.migadu.com (out2.migadu.com [188.165.223.204]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 429404D4C4; Sun, 9 Oct 2022 22:18:18 -0700 (PDT) Message-ID: <8da9812d-eb84-2a84-321e-ea2826ef8981@linux.dev> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1665379096; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=RPNRy9onik+CC8H+dbLBGG/JFwC/8JgqUDFh6TQvjgI=; b=dVajeWBCcCO1PzScOej77248yySjwbUmP9SvX6xR/puhU5jnZMHgj6LOku/wZMaMMQ98Ki yfo+nMCN0uF3CE04ZlxkeKXtYTYNGRGuE1oxwx74rgy0CIYe1/njfj6gTTjQAl8S86mL5O rJsCdqqalBAjnegbuN5Fmk7Xe1Lqvpk= Date: Sun, 9 Oct 2022 22:18:11 -0700 MIME-Version: 1.0 Subject: Re: [PATCH v3 4/4] arc: Use generic dump_stack_print_cmdline() implementation Content-Language: en-US To: Helge Deller , linux-s390@vger.kernel.org, Josh Triplett , x86@kernel.org, linux-snps-arc@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org References: <20220808130917.30760-1-deller@gmx.de> <20220808130917.30760-5-deller@gmx.de> Cc: Alexey Brodkin , Shahab Vahedi X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Vineet Gupta In-Reply-To: <20220808130917.30760-5-deller@gmx.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Migadu-Flow: FLOW_OUT Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On 8/8/22 06:09, Helge Deller wrote: > The process program name and command line is now shown in generic code > in dump_stack_print_info(), so drop the arc-specific implementation. > > Signed-off-by: Helge Deller But that info printing was added back in 2018 by e36df28f532f882. I don't think arc is using show_regs_print_info -> dump_stack_print_info yet. Or is there a different code path now which calls here ? > --- > arch/arc/kernel/troubleshoot.c | 24 ------------------------ > 1 file changed, 24 deletions(-) > > diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c > index 7654c2e42dc0..9807e590ee55 100644 > --- a/arch/arc/kernel/troubleshoot.c > +++ b/arch/arc/kernel/troubleshoot.c > @@ -51,29 +51,6 @@ static void print_regs_callee(struct callee_regs *regs) > regs->r24, regs->r25); > } > > -static void print_task_path_n_nm(struct task_struct *tsk) > -{ > - char *path_nm = NULL; > - struct mm_struct *mm; > - struct file *exe_file; > - char buf[ARC_PATH_MAX]; > - > - mm = get_task_mm(tsk); > - if (!mm) > - goto done; > - > - exe_file = get_mm_exe_file(mm); > - mmput(mm); > - > - if (exe_file) { > - path_nm = file_path(exe_file, buf, ARC_PATH_MAX-1); > - fput(exe_file); > - } > - > -done: > - pr_info("Path: %s\n", !IS_ERR(path_nm) ? path_nm : "?"); > -} > - > static void show_faulting_vma(unsigned long address) > { > struct vm_area_struct *vma; > @@ -176,7 +153,6 @@ void show_regs(struct pt_regs *regs) > */ > preempt_enable(); Maybe we remove preempt* as well now (perhaps as a follow up patch) since that was added by f731a8e89f8c78 "ARC: show_regs: lockdep: re-enable preemption" where show_regs -> print_task_path_n_nm -> mmput was triggering lockdep splat which is supposedly removed. > > - print_task_path_n_nm(tsk); > show_regs_print_info(KERN_INFO); > > show_ecr_verbose(regs); > -- > 2.37.1 > > > _______________________________________________ > linux-snps-arc mailing list > linux-snps-arc@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-snps-arc