lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <b679e900-22e3-47c6-b9bb-7aba56efcf31@huawei.com>
Date: Sat, 30 Mar 2024 10:35:51 +0800
From: Jijie Shao <shaojijie@...wei.com>
To: Jakub Kicinski <kuba@...nel.org>
CC: <shaojijie@...wei.com>, <yisen.zhuang@...wei.com>,
	<salil.mehta@...wei.com>, <davem@...emloft.net>, <edumazet@...gle.com>,
	<pabeni@...hat.com>, <jiri@...nulli.us>, <horms@...nel.org>,
	<rkannoth@...vell.com>, <shenjian15@...wei.com>, <wangjie125@...wei.com>,
	<liuyonglong@...wei.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V6 net-next 3/4] net: hns3: dump more reg info based on
 ras mod


on 2024/3/29 23:15, Jakub Kicinski wrote:
> On Fri, 29 Mar 2024 18:34:02 +0800 Jijie Shao wrote:
>>> These seem to be duplicating standard stats from rtnl_link_stats64,
>>> ethtool_pause_stats, ethtool_eth_mac_stats, etc.
>>>
>>> You can add device specific stats, but please don't duplicate
>>> stats for which we have standard APIs.
>> Yeah, but these are not duplicate stats for ethtool or debugfs.
> Can you say more? I mean there are APIs to expose MIB counters.
> Perhaps your driver doesn't implement those APIs today.
> But (1) it should, and (2) once it does it will be a duplicate.

Sorry for the wrong reply before, these stats are already included
in the ethtool -S stats.

According to the suggestions provided by the chip, the statistics help
analyze the cause of the MAC-related abnormal interrupt.

>> Generally, driver will reset to restore the normal state.
>> After the reset, many registers are cleared. Therefore,
>> it is difficult to analyze the reason of RAS.
> Perhaps I'm missing the significance of the reset when it comes
> to counters reported via standard APIs. Are rtnl_link_stats64
> going to behave differently across a reset than these debug entries?
>
1. These statistics are the same as rtnl_link_stats64. However, these are not updated in real time.
    They are updated only when users query them or driver updates them every 5 minutes.
    However, these are cleared after the reset, which makes debugging difficult.
2. Currently, only a few MIB statistics are required, not all.
3. Are you suggesting that we use rtnl_link_stats64 to provide MIB statistics?

>> We wang to add this information only when RAS is occurring, And
>> these information will help to analyze the reason of RAS.
>>
>> these information does not appear in any new API.
>>
>> Therefore, we hope that we can add this information to
>> reduce the difficulty of analyzing certain issues.

X-sender: <linux-kernel+bounces-125572-steffen.klassert=secunet.com@...r.kernel.org>
X-Receiver: <steffen.klassert@...unet.com> ORCPT=rfc822;steffen.klassert@...unet.com NOTIFY=NEVER; X-ExtendedProps=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
X-CreatedBy: MSExchange15
X-HeloDomain: a.mx.secunet.com
X-ExtendedProps: 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
X-Source: SMTP:Default MBX-DRESDEN-01
X-SourceIPAddress: 62.96.220.36
X-EndOfInjectedXHeaders: 13484
Received: from cas-essen-01.secunet.de (10.53.40.201) by
 mbx-dresden-01.secunet.de (10.53.40.199) with Microsoft SMTP Server
 (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id
 15.1.2507.37; Sat, 30 Mar 2024 03:36:21 +0100
Received: from a.mx.secunet.com (62.96.220.36) by cas-essen-01.secunet.de
 (10.53.40.201) with Microsoft SMTP Server (version=TLS1_2,
 cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35 via Frontend
 Transport; Sat, 30 Mar 2024 03:36:21 +0100
Received: from localhost (localhost [127.0.0.1])
	by a.mx.secunet.com (Postfix) with ESMTP id 66BD720897
	for <steffen.klassert@...unet.com>; Sat, 30 Mar 2024 03:36:21 +0100 (CET)
X-Virus-Scanned: by secunet
X-Spam-Flag: NO
X-Spam-Score: -0.751
X-Spam-Level:
X-Spam-Status: No, score=-0.751 tagged_above=-999 required=2.1
	tests=[HEADER_FROM_DIFFERENT_DOMAINS=0.249, MAILING_LIST_MULTI=-1,
	RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001]
	autolearn=unavailable autolearn_force=no
Received: from a.mx.secunet.com ([127.0.0.1])
	by localhost (a.mx.secunet.com [127.0.0.1]) (amavisd-new, port 10024)
	with ESMTP id JxteRk3fK-sp for <steffen.klassert@...unet.com>;
	Sat, 30 Mar 2024 03:36:20 +0100 (CET)
Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=147.75.48.161; helo=sy.mirrors.kernel.org; envelope-from=linux-kernel+bounces-125572-steffen.klassert=secunet.com@...r.kernel.org; receiver=steffen.klassert@...unet.com 
DKIM-Filter: OpenDKIM Filter v2.11.0 a.mx.secunet.com 5E4BD20868
Received: from sy.mirrors.kernel.org (sy.mirrors.kernel.org [147.75.48.161])
	(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
	(No client certificate requested)
	by a.mx.secunet.com (Postfix) with ESMTPS id 5E4BD20868
	for <steffen.klassert@...unet.com>; Sat, 30 Mar 2024 03:36:20 +0100 (CET)
Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140])
	(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
	(No client certificate requested)
	by sy.mirrors.kernel.org (Postfix) with ESMTPS id 8C9B8B22401
	for <steffen.klassert@...unet.com>; Sat, 30 Mar 2024 02:36:15 +0000 (UTC)
Received: from localhost.localdomain (localhost.localdomain [127.0.0.1])
	by smtp.subspace.kernel.org (Postfix) with ESMTP id 6126E5250;
	Sat, 30 Mar 2024 02:35:59 +0000 (UTC)
Received: from szxga04-in.huawei.com (szxga04-in.huawei.com [45.249.212.190])
	(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 E2B7E17CD;
	Sat, 30 Mar 2024 02:35:55 +0000 (UTC)
Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.190
ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;
	t=1711766158; cv=none; b=OFalO2thJQuPlVYlGf+pYC6ntr9FDJOzrrsqG1q9Zx1tew5xfV1ea+Bl3v8fU5vissgyStq6PALfgeEw8Q9RBdsbHZb0OV5zecCpBZkOrZKVe/m301JF8XxLNNsi4a2A1p1fQrPcSynDl6LPIBhPF5wzAx9u5WC/p8qzPNtqRgA=
ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org;
	s=arc-20240116; t=1711766158; c=relaxed/simple;
	bh=Z8aquzYwrhiTPT1lynRcdUTIL4sI4DuQGZPhxVeaKGg=;
	h=Message-ID:Date:MIME-Version:CC:Subject:To:References:From:
	 In-Reply-To:Content-Type; b=UnbFOcMoqLrzUoRW1fZsG6hxaeAjRFunznG/p/o8bnP9yKUl+JiXH65e3OSiir0ixmdEEOqh+HLniHcqIuQyrhZm7Ln/+82lsbQnVEe2gRgseZuJJek8HChugf9fu7w93Izx2cZRuM+qU/su8tJB62YOOLn5Wiu6XjVKcgajcDc=
ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.190
Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com
Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com
Received: from mail.maildlp.com (unknown [172.19.163.44])
	by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4V61Xl57Vzz29dPH;
	Sat, 30 Mar 2024 10:33:11 +0800 (CST)
Received: from kwepemm600007.china.huawei.com (unknown [7.193.23.208])
	by mail.maildlp.com (Postfix) with ESMTPS id 919B61400D3;
	Sat, 30 Mar 2024 10:35:53 +0800 (CST)
Received: from [10.67.120.192] (10.67.120.192) by
 kwepemm600007.china.huawei.com (7.193.23.208) with Microsoft SMTP Server
 (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id
 15.1.2507.35; Sat, 30 Mar 2024 10:35:52 +0800
Message-ID: <b679e900-22e3-47c6-b9bb-7aba56efcf31@...wei.com>
Date: Sat, 30 Mar 2024 10:35:51 +0800
Precedence: bulk
X-Mailing-List: linux-kernel@...r.kernel.org
List-Id: <linux-kernel.vger.kernel.org>
List-Subscribe: <mailto:linux-kernel+subscribe@...r.kernel.org>
List-Unsubscribe: <mailto:linux-kernel+unsubscribe@...r.kernel.org>
MIME-Version: 1.0
User-Agent: Mozilla Thunderbird
CC: <shaojijie@...wei.com>, <yisen.zhuang@...wei.com>,
	<salil.mehta@...wei.com>, <davem@...emloft.net>, <edumazet@...gle.com>,
	<pabeni@...hat.com>, <jiri@...nulli.us>, <horms@...nel.org>,
	<rkannoth@...vell.com>, <shenjian15@...wei.com>, <wangjie125@...wei.com>,
	<liuyonglong@...wei.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V6 net-next 3/4] net: hns3: dump more reg info based on
 ras mod
To: Jakub Kicinski <kuba@...nel.org>
References: <20240327114330.1826631-1-shaojijie@...wei.com>
 <20240327114330.1826631-4-shaojijie@...wei.com>
 <20240328191130.47242c8f@...nel.org>
 <d6c779a5-e4b1-4f21-b4f0-6b37b212890f@...wei.com>
 <20240329081501.4460ad4d@...nel.org>
From: Jijie Shao <shaojijie@...wei.com>
In-Reply-To: <20240329081501.4460ad4d@...nel.org>
Content-Type: text/plain; charset="UTF-8"; format=flowed
Content-Transfer-Encoding: 7bit
X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To
 kwepemm600007.china.huawei.com (7.193.23.208)
Return-Path: linux-kernel+bounces-125572-steffen.klassert=secunet.com@...r.kernel.org
X-MS-Exchange-Organization-OriginalArrivalTime: 30 Mar 2024 02:36:21.4350
 (UTC)
X-MS-Exchange-Organization-Network-Message-Id: 126887fe-1e3b-446e-089f-08dc50622f8a
X-MS-Exchange-Organization-OriginalClientIPAddress: 62.96.220.36
X-MS-Exchange-Organization-OriginalServerIPAddress: 10.53.40.201
X-MS-Exchange-Organization-Cross-Premises-Headers-Processed: cas-essen-01.secunet.de
X-MS-Exchange-Organization-OrderedPrecisionLatencyInProgress: LSRV=mbx-dresden-01.secunet.de:TOTAL-HUB=23055.164|SMR=0.338(SMRDE=0.034|SMRC=0.303(SMRCL=0.101|X-SMRCR=0.303))|CAT=0.058(CATOS=0.011
 (CATSM=0.011(CATSM-Malware
 Agent=0.010))|CATRESL=0.021(CATRESLP2R=0.018)|CATORES=0.024
 (CATRS=0.024(CATRS-Index Routing
 Agent=0.023)))|QDM=9874.509|SMSC=0.165|SMS=4.418
 (SMSMBXD-INC=4.363)|UNK=0.002|QDM=13163.327|CAT=0.023(CATRESL=0.022(CATRESLP2R=0.002
 ))|QDM=5.247|CAT=0.029(CATRESL=0.028(CATRESLP2R=0.026))|QDM=5.065|CAT=0.004(CATRESL=0.003
 (CATRESLP2R=0.001));2024-03-30T09:00:36.618Z
X-MS-Exchange-Forest-ArrivalHubServer: mbx-dresden-01.secunet.de
X-MS-Exchange-Organization-AuthSource: cas-essen-01.secunet.de
X-MS-Exchange-Organization-AuthAs: Anonymous
X-MS-Exchange-Organization-FromEntityHeader: Internet
X-MS-Exchange-Organization-OriginalSize: 8330
X-MS-Exchange-Organization-HygienePolicy: Standard
X-MS-Exchange-Organization-MessageLatency: SRV=cas-essen-01.secunet.de:TOTAL-FE=0.018|SMR=0.010(SMRPI=0.008(SMRPI-FrontendProxyAgent=0.008))|SMS=0.007
X-MS-Exchange-Organization-AVStamp-Enterprise: 1.0
X-MS-Exchange-Organization-Recipient-Limit-Verified: True
X-MS-Exchange-Organization-TotalRecipientCount: 1
X-MS-Exchange-Organization-Rules-Execution-History: 0b0cf904-14ac-4724-8bdf-482ee6223cf2%%%fd34672d-751c-45ae-a963-ed177fcabe23%%%d8080257-b0c3-47b4-b0db-23bc0c8ddb3c%%%95e591a2-5d7d-4afa-b1d0-7573d6c0a5d9%%%f7d0f6bc-4dcc-4876-8c5d-b3d6ddbb3d55%%%16355082-c50b-4214-9c7d-d39575f9f79b
X-MS-Exchange-Forest-RulesExecuted: mbx-dresden-01
X-MS-Exchange-Organization-RulesExecuted: mbx-dresden-01
X-MS-Exchange-Forest-IndexAgent-0: AQ0CZW4AAW0FAAAPAAADH4sIAAAAAAAEAIVVUW/bNhCmk8i2nLhBN+
 z93tpibpo47dDlIUVaYFs6FCuWAUOfAkaibS6SqFJSMu937Afv452k
 uMmGBYJMUnfffffdHfP3/nTiCpofzl++OH4x/57mxydHr2b0Xl83V/
 SzTWxRXVu69a42J9PJKf1S0A/ezgimH7RnRzp6fXL88uRwTt8evj48
 pPf2D2voYqXdnd/pKf22MpWhypicakdXhtKmzGyia1ssqap1kWqfhk
 Vd0cK7nHxdZJeZLa4v+fC7lzMBMvWqdi67LHVTGfk26w/xe5nr5O44
 OWAvcf3kGkp0QTpNKTU3NgGh0iR2YRNqPa6amsrMaHBNXfGk7mkagW
 gJOk+3K5us6NbQSt+YuwzOPp5XHJM+Gb0SwJpz195Q4TYQN8Ba/oRl
 aq6a5YIx6B3IrkG60mvKnTdv6Jxyg0MgekEM8YKi5s/SIciH87eUuK
 aojReIj8avdFkFGGB7e2Pw40wVcrM5Us1NERgG5xYr1Wt2fQvqT4+e
 ka2pWrkmS2eEJOnp/Bm5AtrhPCCF31ubZaGo+i47QEwnF877NWcIxq
 EfUGxvymwNY5yaWauNKBHy0Zk3Ol2TLZKsSU06nVhOt5fo+YVYM/5Z
 kjifhhaCBMGqapZLU9XWFRWV3t1YQNDVmr8lK1vOxAoAFlZJRSuTld
 OJLnS2/suIWWgscgvefDh799ybDPmkpK8K53OdgRvk9U1ZMweU+kdT
 GK+zbD3rJGZBPFKrAzMsamTLiC1GoGCkUc4WgONv7DCjXBdrrJegiD
 KyLAl60pv0IMyRF+nYF9rbilK7QA83GQfbzAVaVhhwJPPr2cUX/XD+
 JKfcVhVrFySxyyIMgg6VbZMX/rcrU4Q4ictNFSAQo2uxUEzngzg3Vt
 8bAjoD7wdTHACWrq3YleHhCfSRVVGjL3TiXYWcO/FW0u1hHsNgEKy8
 NdUb4EwnRwfdvXJXUN3qXOkc3VQ9ZHBAP7lbgyLN7g1mU6ZcZzQcdM
 uotnmoEOEPUdZs19m4AlxZGTQLdPjcGM9dlvMMSxOIcSXHIeKaXkH0
 osFhC/wvVNpSk77fFnLj5PoakCzGMsjY1x6I8wN613hRciYcNS3MLV
 8L9zTy5nNjEWfGuaN54X8sReMrpx0kbg9dh4sujMUDNUMZ20G7F+VN
 Oxy/Y/C11DtcvPUKDWuLRRiDMKcbUqJHQze7JEESiDyjsyJlDFFn04
 sHLAzv/7b86X8g8N3FuZclFA9lD3NXQC70753n3cTxbe9K0yvS/TN5
 kFPt2BXyNonQ6su0DtSEcBA3Mb7WCI1RbIxcamprS23vDFSMR0UDbA
 fbkVKRGkVqOFZxpCYw2FbR1kDt4gnrnZ1BNFZqPIjZcohnR0WR2pMF
 7PHsqj12DyfAf4y3ikbq0WigvlZj9hph/Y0aAxAPtttqX9Z4hmrE7i
 NZwz5W+3iz5TBwVuAQ76jJTncojrGayHqkxjAbqb0eE5ZIkKkOeRuo
 DjnEWE1hjxNssRAQtpxsDyCLGnBSQ7DttuK++QZ4rB71TESZYZtsS2
 nc6ok1JN8CftydiGKylqQmaheLEUskWQfkUAWBimP1OFa74CxJcb7j
 TrHdTq7wFVEkKGSUAknc3p7Bx7KV956aSsS+rBHTQ1w8LFosPDfquy
 s0AIh08OYcRckgwmgwFfWwRnZdXSJpwg4kHnHnyFepY+iioEYkJ7yN
 +t6TiHIeDYYcYis0W4cz4iqIGuKF9OPBnpCJGRkuElGIjVmx7RZtu/
 8k4b7MetwrOVFf9f0gqUEHYYstyw7wQKY/f1CFaf9141B6eAr3To2o
 P5coW2okzTxhGyQI2OE/oqyUx3cLAAABAsAEPD94bWwgdmVyc2lvbj
 0iMS4wIiBlbmNvZGluZz0idXRmLTE2Ij8+DQo8VGFza1NldD4NCiAg
 PFZlcnNpb24+MTUuMC4wLjA8L1ZlcnNpb24+DQogIDxUYXNrcz4NCi
 AgICA8VGFzayBTdGFydEluZGV4PSIyMzMiPg0KICAgICAgPFRhc2tT
 dHJpbmc+Jmd0OyZndDsmZ3Q7IFlvdSBjYW4gYWRkIGRldmljZSBzcG
 VjaWZpYyBzdGF0cywgYnV0IHBsZWFzZSBkb24ndCBkdXBsaWNhdGU8
 L1Rhc2tTdHJpbmc+DQogICAgICA8QXNzaWduZWVzPg0KICAgICAgIC
 A8RW1haWxVc2VyIElkPSJrdWJhQGtlcm5lbC5vcmciPkpha3ViIEtp
 Y2luc2tpPC9FbWFpbFVzZXI+DQogICAgICA8L0Fzc2lnbmVlcz4NCi
 AgICA8L1Rhc2s+DQogICAgPFRhc2sgU3RhcnRJbmRleD0iNDEyIj4N
 CiAgICAgIDxUYXNrU3RyaW5nPiZndDsgQ2FuIHlvdSBzYXkgbW9yZT
 88L1Rhc2tTdHJpbmc+DQogICAgICA8QXNzaWduZWVzPg0KICAgICAg
 ICA8RW1haWxVc2VyIElkPSJrdWJhQGtlcm5lbC5vcmciPkpha3ViIE
 tpY2luc2tpPC9FbWFpbFVzZXI+DQogICAgICA8L0Fzc2lnbmVlcz4N
 CiAgICA8L1Rhc2s+DQogIDwvVGFza3M+DQo8L1Rhc2tTZXQ+AQ7PAV
 JldHJpZXZlck9wZXJhdG9yLDEwLDA7UmV0cmlldmVyT3BlcmF0b3Is
 MTEsMDtQb3N0RG9jUGFyc2VyT3BlcmF0b3IsMTAsMDtQb3N0RG9jUG
 Fyc2VyT3BlcmF0b3IsMTEsMDtQb3N0V29yZEJyZWFrZXJEaWFnbm9z
 dGljT3BlcmF0b3IsMTAsMDtQb3N0V29yZEJyZWFrZXJEaWFnbm9zdG
 ljT3BlcmF0b3IsMTEsMDtUcmFuc3BvcnRXcml0ZXJQcm9kdWNlciwy MCwxNg==
X-MS-Exchange-Forest-IndexAgent: 1 2191
X-MS-Exchange-Forest-EmailMessageHash: B1979681
X-MS-Exchange-Forest-Language: en
X-MS-Exchange-Organization-Processed-By-Journaling: Journal Agent
X-MS-Exchange-Organization-Transport-Properties: DeliveryPriority=Low
X-MS-Exchange-Organization-Prioritization: 2:RC:REDACTED-af51df60fd698f80b064826f9ee192ca@...unet.com:82/10|SR
X-MS-Exchange-Organization-IncludeInSla: False:RecipientCountThresholdExceeded


on 2024/3/29 23:15, Jakub Kicinski wrote:
> On Fri, 29 Mar 2024 18:34:02 +0800 Jijie Shao wrote:
>>> These seem to be duplicating standard stats from rtnl_link_stats64,
>>> ethtool_pause_stats, ethtool_eth_mac_stats, etc.
>>>
>>> You can add device specific stats, but please don't duplicate
>>> stats for which we have standard APIs.
>> Yeah, but these are not duplicate stats for ethtool or debugfs.
> Can you say more? I mean there are APIs to expose MIB counters.
> Perhaps your driver doesn't implement those APIs today.
> But (1) it should, and (2) once it does it will be a duplicate.

Sorry for the wrong reply before, these stats are already included
in the ethtool -S stats.

According to the suggestions provided by the chip, the statistics help
analyze the cause of the MAC-related abnormal interrupt.

>> Generally, driver will reset to restore the normal state.
>> After the reset, many registers are cleared. Therefore,
>> it is difficult to analyze the reason of RAS.
> Perhaps I'm missing the significance of the reset when it comes
> to counters reported via standard APIs. Are rtnl_link_stats64
> going to behave differently across a reset than these debug entries?
>
1. These statistics are the same as rtnl_link_stats64. However, these are not updated in real time.
    They are updated only when users query them or driver updates them every 5 minutes.
    However, these are cleared after the reset, which makes debugging difficult.
2. Currently, only a few MIB statistics are required, not all.
3. Are you suggesting that we use rtnl_link_stats64 to provide MIB statistics?

>> We wang to add this information only when RAS is occurring, And
>> these information will help to analyze the reason of RAS.
>>
>> these information does not appear in any new API.
>>
>> Therefore, we hope that we can add this information to
>> reduce the difficulty of analyzing certain issues.


Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ