From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 1C68C3EFD1A; Mon, 2 Mar 2026 13:26:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772457993; cv=none; b=MvuSS93U4fXZcSZHQYF8KSXY4JOGQAPGlI1VtsrqJFkGVTyN2mbEflkmGrwrLpEJNli0gPB+fSlhIixoCH6nPT/OIi19apUW2nDQb4+IHo6ZMYElHvghzaN8w9Qa457CUXkZAbcRRMl/sreETaR+ipFpakYTuxHRNreeb/7SLSg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772457993; c=relaxed/simple; bh=tSSCZMQfNAjgWRowoJ6W1Nftjj11tbaoaR5rJWsznPc=; h=Date:Message-ID:From:To:Cc:Subject:In-Reply-To:References: MIME-Version:Content-Type; b=qzOrWaz/1UDB93qflL6he1JeKlH9vIEgJ3xYR69jf0RLWETtkdyYLCqQgMfaSNhFK8pyaVIVwhaGU0wk8XSY4T3DX3JINhPxnaFjNTj78e2mz3SIdhjXScKjtKRsOdechaweA2n97+OBvC02xDYTJKVPBZ4lgYT5A1lBpaiz9pI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Jk4JV51N; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Jk4JV51N" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8A234C19423; Mon, 2 Mar 2026 13:26:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772457992; bh=tSSCZMQfNAjgWRowoJ6W1Nftjj11tbaoaR5rJWsznPc=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=Jk4JV51NL0Bd2AiFG3KD+fdyQLi7vEwqOkKn5CvPqqPwvpjaUBp/oXNnDP1zTYSgJ Ob7wcrqXiXVAEuEKPS2RfTRrVEu7FE4P+p0Em3PJ+gik0PDbB7gALmIN+yWrHVvi5N br/Gqfu/E4JTMyFqwzDHlTvkpsSRaJZEos0hSmGtML23hzHHMWYaEgGTGouRHm7feY Eqfcgx/xGnxh5+Cffl9Sfvoy56cm8hRA+TP7q20ivtdiP0ELq+EeBaYylwG2Trpxjk KFUvnOB8VR58nX8rAEpAA+1CSt2e8QTpvzW/Brxfm7jRHfUkWT+g1qTGy6VaSA3f50 IOavn3ZbsbsmQ== Received: from sofa.misterjones.org ([185.219.108.64] helo=goblin-girl.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1vx3I6-0000000FFVM-1ru2; Mon, 02 Mar 2026 13:26:30 +0000 Date: Mon, 02 Mar 2026 13:26:30 +0000 Message-ID: <86wlzu8ird.wl-maz@kernel.org> From: Marc Zyngier To: Dmitry Vyukov Cc: syzbot , syzkaller@googlegroups.com, catalin.marinas@arm.com, joey.gouly@arm.com, kvm@vger.kernel.org, kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, oupton@kernel.org, suzuki.poulose@arm.com, syzkaller-bugs@googlegroups.com, will@kernel.org, yuzenghui@huawei.com Subject: Re: [syzbot] [kvmarm?] [kvm?] BUG: unable to handle kernel paging request in kvm_vgic_destroy In-Reply-To: References: <69a2d58c.050a0220.3a55be.003b.GAE@google.com> <874in0ex49.wl-maz@kernel.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/30.1 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: dvyukov@google.com, syzbot+f6a46b038fc243ac0175@syzkaller.appspotmail.com, syzkaller@googlegroups.com, catalin.marinas@arm.com, joey.gouly@arm.com, kvm@vger.kernel.org, kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, oupton@kernel.org, suzuki.poulose@arm.com, syzkaller-bugs@googlegroups.com, will@kernel.org, yuzenghui@huawei.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Hi Dmitry, On Mon, 02 Mar 2026 12:59:41 +0000, Dmitry Vyukov wrote: > > Hi Marc, > > The reproducer should print at the start specifically to address this concern: > > the reproducer may not work as expected: fault injection setup failed: > failed to write fault injection file > > Isn't it enough? Ah, I totally missed that, because things scroll really quickly... Apologies. I think it'd be a bit better to just stop the test if the preconditions are not met, as nothing useful will happen. Thanks, M. -- Without deviation from the norm, progress is not possible.