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 0ACC41FCFE5 for ; Thu, 20 Feb 2025 14:21:20 +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=1740061282; cv=none; b=MQ/df5JaK5RY/6xzWncaysQEG8U0NkxsvhiQsmGRU/oqrfO4/U3Krc+R0Yf0uN2U/81Omx0lSnFP+w7FqLfj5XdMfahJGYDy1B8okavxynFjK3x8wevoDmWHiacKepDCf9Ytxj6bCXXSvnCpTeRxi1L/Av9ywzd2tfgjPkdH4gs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740061282; c=relaxed/simple; bh=lJ1fuL6wK8CkBl8tMlUZAzn0eYU+XWFjZX7mmgbguCc=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=JNRvUYYnYoNXAWsjkNJ24zAgPtkMlC4gnfIeTirHSCHIIEgvRFQQNXTUSou0KDHcE6lvEoyAqYGynLgxTbiWlZGPnGlfBqZAFGIJYnvwDUveM0c06t1U7te8F/s8m6mk7nKEJ8iR+7LMrmpn7cH9215yz2w1cVpgwOcDL3hEgGM= 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=3oufnGd7; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=D9Knt0/Y; 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="3oufnGd7"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="D9Knt0/Y" From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1740061279; 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=G/BmtFl2k81SUm/1VjrdU/jVgNub5nHsJ466sJIBSwU=; b=3oufnGd79cXN4jTTMDZ7Z6srl8Ucj1sL35GTITM5ip/hhNfLdNEYBcfYEMW975QF6921cA cciHlQX7+abbQrJT0TieGU8ctAA7wGO0cqj2/piqAaIcbrDv5L/4HeIGVwShaFC3Bq48YH suiMDHR3vg34aEAzMe+BV0KSW9VSPNgdjwW63lvegZgL1TQ5UiPythFZ5KnPHQRHxJG2Xj giFg2lDq21Vm2EoS1vuwvtqlttU4FdQYnquG8StF/7Qc2U1dMZXYRZ0FtVE75DzBMrzz/P N3504pfJR4o/GLBBGIeWk5v9l0bJsYmm0QupTJ+nNCCVRtaoXf+P0gSK0HcClw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1740061279; 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=G/BmtFl2k81SUm/1VjrdU/jVgNub5nHsJ466sJIBSwU=; b=D9Knt0/YpIddKDTVG7BDrv4vvrba0CkVNAk6jPl1IKKFJVU+mQyOoOkRYYlV8EljvtiK2B sr28C0ab+/lVqCAQ== To: Mark Brown , Anup Patel Cc: Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, hpa@zytor.com, Marc Zyngier , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Palmer Dabbelt , Paul Walmsley , Atish Patra , Andrew Jones , Sunil V L , Anup Patel , linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev Subject: Re: [PATCH v6 02/10] irqchip/irq-msi-lib: Optionally set default irq_eoi/irq_ack In-Reply-To: <87jz9kiuvu.ffs@tglx> References: <20250217085657.789309-1-apatel@ventanamicro.com> <20250217085657.789309-3-apatel@ventanamicro.com> <87jz9kiuvu.ffs@tglx> Date: Thu, 20 Feb 2025 15:21:18 +0100 Message-ID: <878qq0itnl.ffs@tglx> Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Thu, Feb 20 2025 at 14:54, Thomas Gleixner wrote: > On Wed, Feb 19 2025 at 14:41, Mark Brown wrote: >> On Mon, Feb 17, 2025 at 02:26:48PM +0530, Anup Patel wrote: >> I'm seeing boot regressions with qemu on arm64 in -next which bisect >> down to this patch. We hit a NULL pointer dereference: >> >> <6>[ 0.898900] virtio_blk virtio1: 1/0/0 default/read/poll queues >> <5>[ 0.910197] virtio_blk virtio1: [vda] 3906250 512-byte logical blocks (2.00 GB/1.86 GiB) >> <1>[ 0.924459] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 >> <1>[ 0.924508] Mem abort info: >> <1>[ 0.924521] ESR = 0x000000008600002b >> <1>[ 0.924559] EC = 0x21: IABT (current EL), IL = 32 bits >> <1>[ 0.924580] SET = 0, FnV = 0 >> <1>[ 0.924597] EA = 0, S1PTW = 0 >> <1>[ 0.924616] FSC = 0x2b: level -1 translation fault >> <1>[ 0.924667] [0000000000000000] user address but active_mm is swapper >> <0>[ 0.924833] Internal error: Oops: 000000008600002b [#1] PREEMPT >> SMP > > Uuurg. I wish I had double checked that the final submitted patch covers > _ALL_ incarnations of this. The below delta patch should address it. I'll redo the branch accordingly. Thanks, tglx