From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from 009.lax.mailroute.net (009.lax.mailroute.net [199.89.1.12]) (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 BDB9915B0FF; Fri, 4 Oct 2024 16:31:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=199.89.1.12 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728059520; cv=none; b=KCi+punMxNfQU7XwwBVOO1sVMeDLas1FFv+DMy4YjLm0A7NDQElGoBpmBFDavt2f/LYF5KK0vPuI4Skn1bsg2nv52zb0Y2BK9YQN5VMihfCYQrZjzlJ4RNflQ9Z9NdUvM9YPJsTQlU38BZ6zAfAbClpPxKmIXXyhvhobaq0RHp4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728059520; c=relaxed/simple; bh=MPO+QWb96zfwbe7Z0K2PYar0mm56xo0AOUVkkpAhKrI=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=klrWarEhljnXojuzuidyp3HGA4TFc6i/lqLtNgPnI+5rhnoikA0PGPlCnSVvJ757SC/gz39ga/IbNy7tzs+o77e3nFYy24pSk6N+eEQ0kZ0+HCSkszEsr0h6F50W3yYbPCHeWpC1wrFZahOJlzihKaWFAYrGo5sg0hHbXAL/SaM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=acm.org; spf=pass smtp.mailfrom=acm.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b=NtWN6QkJ; arc=none smtp.client-ip=199.89.1.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=acm.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=acm.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b="NtWN6QkJ" Received: from localhost (localhost [127.0.0.1]) by 009.lax.mailroute.net (Postfix) with ESMTP id 4XKvFp1xZYzlgMWK; Fri, 4 Oct 2024 16:31:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=acm.org; h= content-transfer-encoding:content-type:content-type:in-reply-to :from:from:content-language:references:subject:subject :user-agent:mime-version:date:date:message-id:received:received; s=mr01; t=1728059516; x=1730651517; bh=iz9E1I6B8CwQ/5Yzuw1pMYrb YElB81ywXT4KH+Y7XQU=; b=NtWN6QkJCsV2r4R8WncnrhauO+tSXdue3HbT2Lo2 TDpVfmzofJmXb9frOoHfN+ksEB08Hw7t9ov20HCFj77TGHC/WrvQiMT5ofkCBPFm ETFqqTOAxjX+TS7q90mgXQ4etgqN9xs4Zp7FlkFb5UTAICXKVf91/35Muy4k6DTJ FZamWuaAGIDQBg8yOhwyplxc4qKNrDfRiHDiftADZxKMv97jfFnbchvHkqJEJwqO Cc//A0BUNEh+TX49PYYfqGpF+bRDDphYS00yKaXAwnGQWedQbw2KCFe/bJHJKPWa q/NHjCO7RiFTEMS8DzOSwa6iatxDF3Nrntu/91oG4hHVTA== X-Virus-Scanned: by MailRoute Received: from 009.lax.mailroute.net ([127.0.0.1]) by localhost (009.lax [127.0.0.1]) (mroute_mailscanner, port 10029) with LMTP id MFDn1liQ5WJj; Fri, 4 Oct 2024 16:31:56 +0000 (UTC) Received: from [100.66.154.22] (unknown [104.135.204.82]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: bvanassche@acm.org) by 009.lax.mailroute.net (Postfix) with ESMTPSA id 4XKvFl5T3hzlgVnF; Fri, 4 Oct 2024 16:31:55 +0000 (UTC) Message-ID: <9fe72efb-46b8-4a72-b29c-c60a8c64f88c@acm.org> Date: Fri, 4 Oct 2024 09:31:54 -0700 Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: blktests failures with v6.12-rc1 kernel To: Zhu Yanjun , Shinichiro Kawasaki Cc: "linux-block@vger.kernel.org" , "linux-nvme@lists.infradead.org" , "linux-scsi@vger.kernel.org" , "nbd@other.debian.org" , "linux-rdma@vger.kernel.org" References: <5cff6598-21f3-4e85-9a06-f3a28380585b@linux.dev> Content-Language: en-US From: Bart Van Assche In-Reply-To: <5cff6598-21f3-4e85-9a06-f3a28380585b@linux.dev> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 10/4/24 5:40 AM, Zhu Yanjun wrote: > So I add a jiffies (u64) value into the name. I don't think that embedding the value of the jiffies counter in the kmem cache names is sufficient to make cache names unique. That sounds like a fragile approach to me. Bart.