From mboxrd@z Thu Jan 1 00:00:00 1970 From: Artem Bityutskiy Subject: Re: [PATCH 00/34] Make kernel build deterministic Date: Wed, 06 Apr 2011 12:25:28 +0300 Message-ID: <1302081928.2742.40.camel@localhost> References: <1302015561-21047-1-git-send-email-mmarek@suse.cz> <20110405154918.GA31337@suse.de> <1302031447.2608.41.camel@koala> <4D9C2D56.70700@suse.cz> Reply-To: dedekind1@gmail.com Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <4D9C2D56.70700@suse.cz> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Michal Marek Cc: anil_ravindranath@pmc-sierra.com, mchehab@redhat.com, benh@kernel.crashing.org, mac@melware.de, aacraid@adaptec.com, linux-mtd@lists.infradead.org, allan.stephens@windriver.com, hpa@zytor.com, t.sailer@alumni.ethz.ch, gwingerde@gmail.com, x86@kernel.org, elf@buici.com, cluster-devel@redhat.com, ccaulfie@redhat.com, mingo@redhat.com, dougthompson@xmission.com, tipc-discussion@lists.sourceforge.net, dwmw2@infradead.org, linux-media@vger.kernel.org, arnaud.giersch@free.fr, linux-kbuild@vger.kernel.org, IvDoorn@gmail.com, teigland@redhat.com, tony.olech@elandigitalsystems.com, apw@canonical.com, linux-hams@vger.kernel.org, tglx@linutronix.de, swhiteho@redhat.com, linux-arm-kernel@lists.infradead.org, linux-edac@vger.kernel.org, jon.maloy@ericsson.com, linux-scsi@vger.kernel.org, netdev@vger.kernel.org, Greg KH , linux-wireless@vger.kernel.org, linux-kernel@ List-Id: edac.vger.kernel.org T24gV2VkLCAyMDExLTA0LTA2IGF0IDExOjA3ICswMjAwLCBNaWNoYWwgTWFyZWsgd3JvdGU6Cj4g PiBTbyBhZGRpdGlvbmFsbHksIEknZCBzdWdnZXN0Ogo+ID4gMS4gSW5zdHJ1bWVudCBjaGVja3Bh dGNoLnBsIGFuZCBtYWtlIGl0IGVyciBvciB3YXJuIG9uIHRpbWVzdGFtcHMuCj4gCj4gVGhpcyBp cyBwYXRjaCAzNC8zNCBpbiB0aGlzIHNlcmllczogaHR0cHM6Ly9sa21sLm9yZy9sa21sLzIwMTEv NC81LzE5OAoKWWVhaCwgZ3JlYXQsIGRpZCBub3Qgbm90aWNlLCB0aGFua3MhCgo+ID4gMi4gUHJv YmFibHkgaW5zdHJ1bWVudCBsaW51eC1uZXh0IHRvIHJpc2UgYSB3YXJuaW5nIHdoZW4gcGVvcGxl IGJyZWFrCj4gPiAgICB0aGlzLgo+IAo+IEknbSBub3Qgc3VyZSBpZiBTdGVwaGVuIGhhcyB0aGF0 IG11Y2ggc3BhcmUgdGltZSwgYW5kIEkgZG9uJ3QgdGhpbmsgaXQKPiBpcyBuZWNlc3NhcnkuIEkg dGhpbmsgdGhlIGNoZWNrcGF0Y2ggY2hlY2sgaXMgc3VmZmljaWVudCBhbmQgSSdsbCBjaGVjawo+ IG15c2VsZiBvY2Nhc2lvbmFsbHkuCgpZZXMsIHRoYXQncyBmaW5lLCBJIGp1c3Qgd2FudGVkIHRv IHNwZWFrIHRoaXMgb3V0IC0gdGhlcmUgaXMgYQpwcm9iYWJpbGl0eSB0aGF0IHNvbWVvbmUgZ2V0 cyBleGNpdGVkIGFuZCBjcmVhdGVzIHNvbWUgaW5zdHJ1bWVudGF0aW9uCnRvIGtidWlsZCB0byBh dXRvbWF0aWNhbGx5IGRldGVjdCBiYWQgdGhpbmdzIGFuZCB0aGVuIFN0ZXBoZW4gY291bGQKZWFz aWx5IHVzZSB0aGF0LgoKV1JUICJub3QgbmVjZXNzYXJ5IiAtIHdlbGwsIEkgdGhpbmsgaXQgaXMg YWx3YXlzIGJldHRlciB0byBjdXQgYmFkCnRoaW5ncyBiZWZvcmUgdGhleSBhcmUgbWVyZ2VkLCBy YXRoZXIgdGhhbiBhZnRlcndhcmRzLgoKQnV0IGFueXdheSwgbGV0J3MgZm9yZ2V0IGFib3V0IHRo aXMuCgotLSAKQmVzdCBSZWdhcmRzLApBcnRlbSBCaXR5dXRza2l5ICjQkNGA0YLRkdC8INCR0LjR gtGO0YbQutC40LkpCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0 cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGlu Zm8vbGludXgtYXJtLWtlcm5lbAo= From mboxrd@z Thu Jan 1 00:00:00 1970 From: Artem Bityutskiy Subject: Re: [PATCH 00/34] Make kernel build deterministic Date: Wed, 06 Apr 2011 12:25:28 +0300 Message-ID: <1302081928.2742.40.camel@localhost> References: <1302015561-21047-1-git-send-email-mmarek@suse.cz> <20110405154918.GA31337@suse.de> <1302031447.2608.41.camel@koala> <4D9C2D56.70700@suse.cz> Reply-To: dedekind1@gmail.com Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:subject:from:reply-to:to:cc:in-reply-to :references:content-type:date:message-id:mime-version:x-mailer :content-transfer-encoding; bh=HKZPO4JDRIA0BDCH/vu9YeEnq9ZoqT/BZL7wYBiR7qY=; b=ROnW0uw2pcitrbauxv16JV4+b60Sq9n0NooHrRq6vkfE/YSjA/e8qDzsV2FLVpcGM4 d4GP4PUWtfwhXs17nqPOs7m16owPbHyUHxMOYmvSRToGiviAuWPVKaor7rRmBAktglcf /UqLBlRMEqBDNBELzfsdhjYOpAyPs6aj283Yk= In-Reply-To: <4D9C2D56.70700@suse.cz> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Michal Marek Cc: anil_ravindranath@pmc-sierra.com, mchehab@redhat.com, benh@kernel.crashing.org, mac@melware.de, aacraid@adaptec.com, linux-mtd@lists.infradead.org, allan.stephens@windriver.com, hpa@zytor.com, t.sailer@alumni.ethz.ch, gwingerde@gmail.com, x86@kernel.org, elf@buici.com, cluster-devel@redhat.com, ccaulfie@redhat.com, mingo@redhat.com, dougthompson@xmission.com, tipc-discussion@lists.sourceforge.net, dwmw2@infradead.org, linux-media@vger.kernel.org, arnaud.giersch@free.fr, linux-kbuild@vger.kernel.org, IvDoorn@gmail.com, teigland@redhat.com, tony.olech@elandigitalsystems.com, apw@canonical.com, linux-hams@vger.kernel.org, tglx@linutronix.de, swhiteho@redhat.com, linux-arm-kernel@lists.infradead.org, linux-edac@vger.kernel.org, jon.maloy@ericsson.com, linux-scsi@vger.kernel.org, netdev@vger.kernel.org, Greg KH , linux-wireless@vger.kernel.org, T24gV2VkLCAyMDExLTA0LTA2IGF0IDExOjA3ICswMjAwLCBNaWNoYWwgTWFyZWsgd3JvdGU6Cj4g PiBTbyBhZGRpdGlvbmFsbHksIEknZCBzdWdnZXN0Ogo+ID4gMS4gSW5zdHJ1bWVudCBjaGVja3Bh dGNoLnBsIGFuZCBtYWtlIGl0IGVyciBvciB3YXJuIG9uIHRpbWVzdGFtcHMuCj4gCj4gVGhpcyBp cyBwYXRjaCAzNC8zNCBpbiB0aGlzIHNlcmllczogaHR0cHM6Ly9sa21sLm9yZy9sa21sLzIwMTEv NC81LzE5OAoKWWVhaCwgZ3JlYXQsIGRpZCBub3Qgbm90aWNlLCB0aGFua3MhCgo+ID4gMi4gUHJv YmFibHkgaW5zdHJ1bWVudCBsaW51eC1uZXh0IHRvIHJpc2UgYSB3YXJuaW5nIHdoZW4gcGVvcGxl IGJyZWFrCj4gPiAgICB0aGlzLgo+IAo+IEknbSBub3Qgc3VyZSBpZiBTdGVwaGVuIGhhcyB0aGF0 IG11Y2ggc3BhcmUgdGltZSwgYW5kIEkgZG9uJ3QgdGhpbmsgaXQKPiBpcyBuZWNlc3NhcnkuIEkg dGhpbmsgdGhlIGNoZWNrcGF0Y2ggY2hlY2sgaXMgc3VmZmljaWVudCBhbmQgSSdsbCBjaGVjawo+ IG15c2VsZiBvY2Nhc2lvbmFsbHkuCgpZZXMsIHRoYXQncyBmaW5lLCBJIGp1c3Qgd2FudGVkIHRv IHNwZWFrIHRoaXMgb3V0IC0gdGhlcmUgaXMgYQpwcm9iYWJpbGl0eSB0aGF0IHNvbWVvbmUgZ2V0 cyBleGNpdGVkIGFuZCBjcmVhdGVzIHNvbWUgaW5zdHJ1bWVudGF0aW9uCnRvIGtidWlsZCB0byBh dXRvbWF0aWNhbGx5IGRldGVjdCBiYWQgdGhpbmdzIGFuZCB0aGVuIFN0ZXBoZW4gY291bGQKZWFz aWx5IHVzZSB0aGF0LgoKV1JUICJub3QgbmVjZXNzYXJ5IiAtIHdlbGwsIEkgdGhpbmsgaXQgaXMg YWx3YXlzIGJldHRlciB0byBjdXQgYmFkCnRoaW5ncyBiZWZvcmUgdGhleSBhcmUgbWVyZ2VkLCBy YXRoZXIgdGhhbiBhZnRlcndhcmRzLgoKQnV0IGFueXdheSwgbGV0J3MgZm9yZ2V0IGFib3V0IHRo aXMuCgotLSAKQmVzdCBSZWdhcmRzLApBcnRlbSBCaXR5dXRza2l5ICjQkNGA0YLRkdC8INCR0LjR gtGO0YbQutC40LkpCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0 cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGlu Zm8vbGludXgtYXJtLWtlcm5lbAo= From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: [PATCH 00/34] Make kernel build deterministic From: Artem Bityutskiy To: Michal Marek In-Reply-To: <4D9C2D56.70700@suse.cz> References: <1302015561-21047-1-git-send-email-mmarek@suse.cz> <20110405154918.GA31337@suse.de> <1302031447.2608.41.camel@koala> <4D9C2D56.70700@suse.cz> Content-Type: text/plain; charset="UTF-8" Date: Wed, 06 Apr 2011 12:25:28 +0300 Message-ID: <1302081928.2742.40.camel@localhost> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Cc: anil_ravindranath@pmc-sierra.com, mchehab@redhat.com, benh@kernel.crashing.org, mac@melware.de, aacraid@adaptec.com, linux-mtd@lists.infradead.org, allan.stephens@windriver.com, hpa@zytor.com, t.sailer@alumni.ethz.ch, gwingerde@gmail.com, x86@kernel.org, elf@buici.com, cluster-devel@redhat.com, ccaulfie@redhat.com, mingo@redhat.com, dougthompson@xmission.com, tipc-discussion@lists.sourceforge.net, dwmw2@infradead.org, linux-media@vger.kernel.org, arnaud.giersch@free.fr, linux-kbuild@vger.kernel.org, IvDoorn@gmail.com, teigland@redhat.com, tony.olech@elandigitalsystems.com, apw@canonical.com, linux-hams@vger.kernel.org, tglx@linutronix.de, swhiteho@redhat.com, linux-arm-kernel@lists.infradead.org, linux-edac@vger.kernel.org, jon.maloy@ericsson.com, linux-scsi@vger.kernel.org, netdev@vger.kernel.org, Greg KH , linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, davem@davemloft.net, linux-usb@vger.kernel.org, James.Bottomley@suse.de, chuanxiao.dong@intel.com, paulus@samba.org, linuxppc-dev@lists.ozlabs.org, bluesmoke-devel@lists.sourceforge.net Reply-To: dedekind1@gmail.com List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Wed, 2011-04-06 at 11:07 +0200, Michal Marek wrote: > > So additionally, I'd suggest: > > 1. Instrument checkpatch.pl and make it err or warn on timestamps. > > This is patch 34/34 in this series: https://lkml.org/lkml/2011/4/5/198 Yeah, great, did not notice, thanks! > > 2. Probably instrument linux-next to rise a warning when people break > > this. > > I'm not sure if Stephen has that much spare time, and I don't think it > is necessary. I think the checkpatch check is sufficient and I'll check > myself occasionally. Yes, that's fine, I just wanted to speak this out - there is a probability that someone gets excited and creates some instrumentation to kbuild to automatically detect bad things and then Stephen could easily use that. WRT "not necessary" - well, I think it is always better to cut bad things before they are merged, rather than afterwards. But anyway, let's forget about this. -- Best Regards, Artem Bityutskiy (Артём Битюцкий) From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-fx0-f51.google.com (mail-fx0-f51.google.com [209.85.161.51]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id DF470B6EFF for ; Wed, 6 Apr 2011 19:28:22 +1000 (EST) Received: by fxm5 with SMTP id 5so940906fxm.38 for ; Wed, 06 Apr 2011 02:28:17 -0700 (PDT) Subject: Re: [PATCH 00/34] Make kernel build deterministic From: Artem Bityutskiy To: Michal Marek In-Reply-To: <4D9C2D56.70700@suse.cz> References: <1302015561-21047-1-git-send-email-mmarek@suse.cz> <20110405154918.GA31337@suse.de> <1302031447.2608.41.camel@koala> <4D9C2D56.70700@suse.cz> Content-Type: text/plain; charset="UTF-8" Date: Wed, 06 Apr 2011 12:25:28 +0300 Message-ID: <1302081928.2742.40.camel@localhost> Mime-Version: 1.0 Cc: anil_ravindranath@pmc-sierra.com, mchehab@redhat.com, mac@melware.de, aacraid@adaptec.com, linux-mtd@lists.infradead.org, allan.stephens@windriver.com, hpa@zytor.com, t.sailer@alumni.ethz.ch, gwingerde@gmail.com, x86@kernel.org, elf@buici.com, cluster-devel@redhat.com, ccaulfie@redhat.com, mingo@redhat.com, dougthompson@xmission.com, tipc-discussion@lists.sourceforge.net, dwmw2@infradead.org, linux-media@vger.kernel.org, arnaud.giersch@free.fr, linux-kbuild@vger.kernel.org, IvDoorn@gmail.com, teigland@redhat.com, tony.olech@elandigitalsystems.com, apw@canonical.com, linux-hams@vger.kernel.org, tglx@linutronix.de, swhiteho@redhat.com, linux-arm-kernel@lists.infradead.org, linux-edac@vger.kernel.org, jon.maloy@ericsson.com, linux-scsi@vger.kernel.org, netdev@vger.kernel.org, Greg KH , linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, davem@davemloft.net, linux-usb@vger.kernel.org, James.Bottomley@suse.de, chuanxiao.dong@intel.com, paulus@samba.org, linuxppc-dev@lists.ozlabs.org, bluesmoke-devel@lists.sourceforge.net Reply-To: dedekind1@gmail.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Wed, 2011-04-06 at 11:07 +0200, Michal Marek wrote: > > So additionally, I'd suggest: > > 1. Instrument checkpatch.pl and make it err or warn on timestamps. > > This is patch 34/34 in this series: https://lkml.org/lkml/2011/4/5/198 Yeah, great, did not notice, thanks! > > 2. Probably instrument linux-next to rise a warning when people break > > this. > > I'm not sure if Stephen has that much spare time, and I don't think it > is necessary. I think the checkpatch check is sufficient and I'll check > myself occasionally. Yes, that's fine, I just wanted to speak this out - there is a probability that someone gets excited and creates some instrumentation to kbuild to automatically detect bad things and then Stephen could easily use that. WRT "not necessary" - well, I think it is always better to cut bad things before they are merged, rather than afterwards. But anyway, let's forget about this. -- Best Regards, Artem Bityutskiy (Артём Битюцкий) From mboxrd@z Thu Jan 1 00:00:00 1970 From: dedekind1@gmail.com (Artem Bityutskiy) Date: Wed, 06 Apr 2011 12:25:28 +0300 Subject: [PATCH 00/34] Make kernel build deterministic In-Reply-To: <4D9C2D56.70700@suse.cz> References: <1302015561-21047-1-git-send-email-mmarek@suse.cz> <20110405154918.GA31337@suse.de> <1302031447.2608.41.camel@koala> <4D9C2D56.70700@suse.cz> Message-ID: <1302081928.2742.40.camel@localhost> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, 2011-04-06 at 11:07 +0200, Michal Marek wrote: > > So additionally, I'd suggest: > > 1. Instrument checkpatch.pl and make it err or warn on timestamps. > > This is patch 34/34 in this series: https://lkml.org/lkml/2011/4/5/198 Yeah, great, did not notice, thanks! > > 2. Probably instrument linux-next to rise a warning when people break > > this. > > I'm not sure if Stephen has that much spare time, and I don't think it > is necessary. I think the checkpatch check is sufficient and I'll check > myself occasionally. Yes, that's fine, I just wanted to speak this out - there is a probability that someone gets excited and creates some instrumentation to kbuild to automatically detect bad things and then Stephen could easily use that. WRT "not necessary" - well, I think it is always better to cut bad things before they are merged, rather than afterwards. But anyway, let's forget about this. -- Best Regards, Artem Bityutskiy (????? ????????)