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iprev=pass policy.iprev=140.211.169.12 (mail.linuxfoundation.org); spf=pass smtp.mailfrom=ksummit-discuss-bounces@lists.linuxfoundation.org smtp.helo=mail.linuxfoundation.org; x-aligned-from=orgdomain_pass (Domain org match); x-cm=discussion score=0; x-ptr=pass x-ptr-helo=mail.linuxfoundation.org x-ptr-lookup=mail.linuxfoundation.org; x-return-mx=pass smtp.domain=lists.linuxfoundation.org smtp.result=pass smtp_org.domain=linuxfoundation.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes; x-tls=pass version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128; x-vs=clean score=0 state=0 X-ME-VSCategory: clean X-CM-Envelope: MS4wfNsumk3YK7mgN6+ui6CsU1oiekWadbQ9JHrtACQNSt6eHBIqT30xXl4CqhKGfdkPZmbT3wz6fVVlm665Pa7yd0WJ07fLajmcRiiK90eFslkd/ariDj7T xFt5irAXntNLWO9vl4CCXMu02WZ8hiAW/h4mqwUhtlyiG58MN0zNpD69U4JbU8L6F4qvEW6+2b0r5CJiWJpWzDlizEs/XJuUfZ8z4YwIbh7nRHD59xNQa8sN frmX5YElp5K1gWLtpWQNgQ== X-CM-Analysis: v=2.3 cv=WaUilXpX c=1 sm=1 tr=0 a=5MPDoNpceV4HFXFrvkM3CQ==:117 a=5MPDoNpceV4HFXFrvkM3CQ==:17 a=kj9zAlcOel0A:10 a=VUJBJC2UJ8kA:10 a=-uNXE31MpBQA:10 a=jJxKW8Ag-pUA:10 a=ag1SF4gXAAAA:8 a=VgHFUb8h8JXuP9ARdAsA:9 a=MeEwzBC_uXgZrlGi:21 a=xllMWbdS4qTuX15J:21 a=CjuIK1q_8ugA:10 a=Yupwre4RP9_Eg_Bd0iYG:22 cc=dsc X-ME-CMScore: 0 X-ME-CMCategory: discussion X-Remote-Delivered-To: ksummit-discuss@mail.linuxfoundation.org Date: Thu, 3 May 2018 05:03:29 -0700 From: Greg KH To: Guenter Roeck Message-ID: <20180503120329.GA7025@kroah.com> References: <20180501163818.GD1468@sasha-vm> <20180501194450.GD10479@thunk.org> <20180501200019.GA7397@sasha-vm> <20180501205448.GE10479@thunk.org> <20180501211551.GI2714@sirena.org.uk> <20180502194632.GB18390@sasha-vm> <20180503020550.GP2714@sirena.org.uk> <20180503031000.GC29205@thunk.org> <0276fcda-0385-8f22-dbdb-e063f7ed8bbe@roeck-us.net> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <0276fcda-0385-8f22-dbdb-e063f7ed8bbe@roeck-us.net> User-Agent: Mutt/1.9.5 (2018-04-13) X-Remote-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 X-Remote-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Cc: "ksummit-discuss@lists.linuxfoundation.org" , "linux-kernel@vger.kernel.org" , "w@1wt.eu" Subject: Re: [Ksummit-discuss] bug-introducing patches X-BeenThere: ksummit-discuss@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: ksummit-discuss-bounces@lists.linuxfoundation.org Errors-To: ksummit-discuss-bounces@lists.linuxfoundation.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On Wed, May 02, 2018 at 08:52:29PM -0700, Guenter Roeck wrote: > On 05/02/2018 08:10 PM, Theodore Y. Ts'o wrote: > > On Thu, May 03, 2018 at 11:05:50AM +0900, Mark Brown wrote: > > > On Wed, May 02, 2018 at 07:46:34PM +0000, Sasha Levin wrote: > > > > > > > As you said, the regression should be fixed "asap", not "immediately". > > > > It should go through some sort of review and testing the maintainers are > > > > happy with, but unfourtenately it doesn't happen now. > > > > > > Doesn't happen some of the time. It's not like this is a universal > > > problem. > > > > > > Especially for driver specific things there's at times no realistic > > > prospect of getting useful independent review of fixes, the hardware > > > isn't always widely available and if the fix isn't a pure software thing > > > at some point you just have to trust the judgement of the vendor. > > > > And sometimes the Demon Murphy will cause a regression fix for user A, > > to cause breakage for slightly different hardware belonging to user B. :-( > > > > Believe me, I get my share of those. 7dac4a1726a9 ("ext4: add validity checks > for bitmap block numbers") and its fix 22be37acce25 (" ext4: fix bitmap > position validation") are pretty good examples. Yet, at the same time I had > to deal with three additional CVEs in the ext4 code. Even though the initial > fix for one of the four was buggy, I am glad that I got the other three through > stable releases. > > As for -next, me and others stopped reporting bugs in it, because when we do > we tend to get flamed for the "noise". Is anyone aware (or cares) that mips > and nds32 images don't build ? Soaking clothes in an empty bathtub won't make > them wet, and bugs in code which no one builds, much less tests or uses, won't > be found. > > I can only repeat - what we need is more sophisticated testing, not a more > restrictive process. I agree, and people are working on this. But we can always use more! thanks, greg k-h _______________________________________________ Ksummit-discuss mailing list Ksummit-discuss@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/ksummit-discuss