From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 18A7C2571C5 for ; Wed, 6 Aug 2025 10:39:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754476753; cv=none; b=jrOcer5EZvbVyavOkdulB1Spl7Kut62Bc7jF0qsLvGhOH/ATKJCB74Ar4Uivvo8SujgOZM02rNzNu+TNqCFjA0FXIHmTH8OOfm8W8pm9zxILLnT5UY1H2tMwkgjK0feaN+q7iLZK8vLoBwZRZ05RH0t/qqtDYM0EgNfIJAlYnHI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754476753; c=relaxed/simple; bh=4avSKfWvL28pdH6MrnrnhaXv4f/HUlfPxhJGeGx2V/A=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=GHnqEaV80MAsGYKhlcfqXIug6hFjHG8UkHixb+1wGVyYZj2UbNDiaILEC0zsHNREdjGdxtzAtVCtYTaW5Y818cq2Igg4dzMmw0warLmne5rBHAUGRnSj+emz/e+0HprjOVsOqzLBi3IxG0VHW6VPv07nCmeOwb3f/KcvNV/82Kc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=1y8ifgKs; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=toS1IjGN; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="1y8ifgKs"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="toS1IjGN" From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1754476749; 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: in-reply-to:in-reply-to:references:references; bh=FhKBjBL0r+ZMyH7ZvDnPT8IRUyvC+7V+Yvg1xfVi4zk=; b=1y8ifgKsKOhwxKOFaOdd4FhBFUCxw9urKa04WdCdOnVhl2hNkpbnUv96e7kQf4W8Pduid0 +GT0IBKfm/dWo0GW+3netUezCF1T4zQNjw2vAN8BggMyEj+xu7qmpy5EaVHcvuHI/lsUxz KaOS8Tb4dt4do3t/xeyOJQUjFWMc+D8LYw8G6erCR4Yd4XraR/3bAqClxrGba8PTJRr5xJ Nn/O5De/zMGIvXLQKZJ1sbAVQIE01rjHAumEkWwqcBN/ArIemkidhb1REzvuvZ9bm/TTsh 0XApwyQIR9Ht5iJv2FjKDwuxqf1kWJrEgOIeDnc111kJYW8dogBg/iHWBku4JA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1754476749; 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: in-reply-to:in-reply-to:references:references; bh=FhKBjBL0r+ZMyH7ZvDnPT8IRUyvC+7V+Yvg1xfVi4zk=; b=toS1IjGNfZoqRXGyiwSsAeCZYwQrk6b//DsCVNMJeLwyycx0mPt6dil7hFiSEtMNY+6HU4 ONdyXmizynHcl7BA== To: Oliver Sang Cc: Peter Zijlstra , oe-lkp@lists.linux.dev, lkp@intel.com, linux-kernel@vger.kernel.org, x86@kernel.org, Sebastian Andrzej Siewior , linux-mm@kvack.org, ltp@lists.linux.it, oliver.sang@intel.com Subject: Re: [tip:locking/futex] [futex] 56180dd20c: BUG:sleeping_function_called_from_invalid_context_at_kernel/nsproxy.c In-Reply-To: References: <87a54usty4.ffs@tglx> <87seikp94v.ffs@tglx> <87wm7ro3r7.ffs@tglx> <87cy9gilo8.ffs@tglx> <874iusihka.ffs@tglx> <87qzxoeuav.ffs@tglx> Date: Wed, 06 Aug 2025 12:39:09 +0200 Message-ID: <87bjosenua.ffs@tglx> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Wed, Aug 06 2025 at 16:35, Oliver Sang wrote: > On Wed, Aug 06, 2025 at 10:19:36AM +0200, Thomas Gleixner wrote: >> Oliver! >> >> On Wed, Aug 06 2025 at 16:01, Oliver Sang wrote: >> > On Thu, Jul 31, 2025 at 04:03:01PM +0200, Thomas Gleixner wrote: >> >> On Thu, Jul 31 2025 at 14:34, Thomas Gleixner wrote: >> >> > Either you make the timeout longer or try the following on the kernel >> >> > command line instead of 'ftrace_dump_on_cpu': >> >> >> >> instead of 'ftrace_dump_ooops' >> > >> > sorry for late, I just took several-day off. >> >> I hope you had a good time! >> >> > attached dmesg FYI. >> >> Thanks for doing this. Now the buffer is too short and as nothing stops >> the tracer the interesting stuff goes out of sight. >> >> Can you please apply the patch below and try again? > > got it! > > just want to confirm, still use below params or need some modification? > > trace_event=preemptirq:preempt_disable,preemptirq:preempt_enable ftrace_dump_on_oops=orig_cpu trace_buf_size=100K panic_on_warn=1 Those should be good. Let's see.