From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from prod-mail-xrelay07.akamai.com ([72.246.2.115]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Xj8CW-0002WW-Jz for kexec@lists.infradead.org; Tue, 28 Oct 2014 14:56:49 +0000 Message-ID: <544FAE98.6080901@akamai.com> Date: Tue, 28 Oct 2014 10:56:24 -0400 From: Jason Baron MIME-Version: 1.0 Subject: Re: [PATCH V5] kernel, add panic_on_warn References: <1414499499-21952-1-git-send-email-prarit@redhat.com> In-Reply-To: <1414499499-21952-1-git-send-email-prarit@redhat.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: Prarit Bhargava Cc: Andi Kleen , Jonathan Corbet , "kexec@lists.infradead.org" , Rusty Russell , "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Fabian Frederick , "isimatu.yasuaki@jp.fujitsu.com" , "H. Peter Anvin" , Masami Hiramatsu , Andrew Morton , "linux-api@vger.kernel.org" , "vgoyal@redhat.com" On 10/28/2014 08:31 AM, Prarit Bhargava wrote: > There have been several times where I have had to rebuild a kernel to > cause a panic when hitting a WARN() in the code in order to get a crash > dump from a system. Sometimes this is easy to do, other times (such as > in the case of a remote admin) it is not trivial to send new images to the > user. > .... > diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c > index 9a4f750..c62d421 100644 > --- a/kernel/sysctl_binary.c > +++ b/kernel/sysctl_binary.c > @@ -137,6 +137,7 @@ static const struct bin_table bin_kern_table[] = { > { CTL_INT, KERN_COMPAT_LOG, "compat-log" }, > { CTL_INT, KERN_MAX_LOCK_DEPTH, "max_lock_depth" }, > { CTL_INT, KERN_PANIC_ON_NMI, "panic_on_unrecovered_nmi" }, > + { CTL_INT, KERN_BUG_ON_WARN, "panic_on_warn" }, > {} > }; > I think you meant KERN_PANIC_ON_WARN here. Thanks, -Jason _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec