Miguel ﾃ］gel Arruga Vivas <rosen644835@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.Received: (at 45676) by debbugs.gnu.org; 6 Jan 2021 11:35:43 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Jan 06 06:35:43 2021 Received: from localhost ([127.0.0.1]:43621 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1kx76N-0006y7-Al for submit <at> debbugs.gnu.org; Wed, 06 Jan 2021 06:35:43 -0500 Received: from eggs.gnu.org ([209.51.188.92]:47778) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <ludo@HIDDEN>) id 1kx76M-0006xk-7b for 45676 <at> debbugs.gnu.org; Wed, 06 Jan 2021 06:35:42 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]:58412) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from <ludo@HIDDEN>) id 1kx76G-0004xb-Un; Wed, 06 Jan 2021 06:35:36 -0500 Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=41504 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from <ludo@HIDDEN>) id 1kx76F-00078F-FD; Wed, 06 Jan 2021 06:35:36 -0500 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN> To: Leo Famulari <leo@HIDDEN> Subject: Re: bug#45676: Store references inside compressed data References: <8735zf30yw.fsf@HIDDEN> <X/TKic4MWamkuxHa@HIDDEN> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 17 =?utf-8?Q?Niv=C3=B4se?= an 229 de la =?utf-8?Q?R?= =?utf-8?Q?=C3=A9volution?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Wed, 06 Jan 2021 12:35:34 +0100 In-Reply-To: <X/TKic4MWamkuxHa@HIDDEN> (Leo Famulari's message of "Tue, 5 Jan 2021 15:22:33 -0500") Message-ID: <87eeiymh6h.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 45676 Cc: 45676 <at> debbugs.gnu.org, Miguel =?utf-8?Q?=C3=81ngel?= Arruga Vivas <rosen644835@HIDDEN> X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) Hi, Leo Famulari <leo@HIDDEN> skribis: > On Tue, Jan 05, 2021 at 03:36:07PM +0100, Miguel =C3=81ngel Arruga Vivas = wrote: >> There are several binary formats that allow compression of the >> executable image, or some of its data, which is decompress at runtime: >>=20 >> - Kernel images. >> - Compressed libraries: e.g. Smalltalk modules. >> - Compressed executable or data files: e.g. library.el.gz. >>=20 >> These aren't taken into account by the grafting process, which may lead >> to issues when store paths are located inside that kind of files. > > If you have specific instances of this type of bug, please report them. Agreed. The general issue is =E2=80=9Cwell known=E2=80=9D as we say, but w= hat I think we need to do is look for specific instances and address them. Ludo=E2=80=99.
bug-guix@HIDDEN:bug#45676; Package guix.
Full text available.Received: (at 45676) by debbugs.gnu.org; 6 Jan 2021 08:54:32 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Jan 06 03:54:32 2021 Received: from localhost ([127.0.0.1]:43368 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1kx4aN-0000He-TV for submit <at> debbugs.gnu.org; Wed, 06 Jan 2021 03:54:32 -0500 Received: from mailrelay.tugraz.at ([129.27.2.202]:53763) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <leo.prikler@HIDDEN>) id 1kx4aL-0000HS-Ry for 45676 <at> debbugs.gnu.org; Wed, 06 Jan 2021 03:54:31 -0500 Received: from nijino.local (217-149-174-13.nat.highway.telekom.at [217.149.174.13]) by mailrelay.tugraz.at (Postfix) with ESMTPSA id 4D9jpn6wpwz1LBF8; Wed, 6 Jan 2021 09:54:25 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 mailrelay.tugraz.at 4D9jpn6wpwz1LBF8 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tugraz.at; s=mailrelay; t=1609923266; bh=PP/QIIgF8Mm0eRFLaTBb7U75vQ36PrKOGxYiO1MoAeQ=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=RE6UgVAxWAGaDRirEoXFA/Echod91tK6+9zS6NLxe39lZKhH1xPXmQkD/ZIDxC/FW f0vFF9T3Zus/egfHK0Rr6C2xdr8OG3qLavkgbFg2qvn8MHLQeo6kaqrgRNf4DAsABe 1/U7tcM9lusVcUZflkLl7b3FN0SXbBt/GeVdhDW8= Message-ID: <06ba5c0f24bdcdb706990c9169093aba72463302.camel@HIDDEN> Subject: Re: bug#45676: Store references inside compressed data From: Leo Prikler <leo.prikler@HIDDEN> To: Tobias Geerinckx-Rice <me@HIDDEN>, Miguel =?ISO-8859-1?Q?=C1ngel?= Arruga Vivas <rosen644835@HIDDEN> Date: Wed, 06 Jan 2021 09:54:25 +0100 In-Reply-To: <871rezf1yg.fsf@nckx> References: <8735zf30yw.fsf@HIDDEN> <871rezf1yg.fsf@nckx> Content-Type: multipart/mixed; boundary="=-UZ7bSDYiGU4d4OZNtwAU" User-Agent: Evolution 3.34.2 MIME-Version: 1.0 X-TUG-Backscatter-control: bt4lQm5Tva3SBgCuw0EnZw X-Spam-Scanner: SpamAssassin 3.003001 X-Spam-Score-relay: -1.9 X-Scanned-By: MIMEDefang 2.74 on 129.27.10.117 X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 45676 Cc: 45676 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) --=-UZ7bSDYiGU4d4OZNtwAU Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Hi! Am Dienstag, den 05.01.2021, 23:33 +0100 schrieb Tobias Geerinckx-Rice: > Let's stop installing compressed executables & data files. We > already avoid compressed .jars and other renamed zip files. It > ain't right. Would this be strictly necessary even if the same references are kept through other files, e.g. uncompressed binaries? I'll attach a patch, that fixes Emacs just in case. Regards, Leo --=-UZ7bSDYiGU4d4OZNtwAU Content-Disposition: attachment; filename="0001-gnu-emacs-Don-t-install-compressed-archives.patch" Content-Transfer-Encoding: base64 Content-Type: text/x-patch; name="0001-gnu-emacs-Don-t-install-compressed-archives.patch"; charset="UTF-8" RnJvbSA1N2MyM2JmNmVjYWM3OWMzOTdjYjQ5ZmYyNTExNzZlYzNhN2IxY2Y1IE1vbiBTZXAgMTcg MDA6MDA6MDAgMjAwMQpGcm9tOiBMZW8gUHJpa2xlciA8bGVvLnByaWtsZXJAc3R1ZGVudC50dWdy YXouYXQ+CkRhdGU6IFdlZCwgNiBKYW4gMjAyMSAwOToyNDowNyArMDEwMApTdWJqZWN0OiBbUEFU Q0hdIGdudTogZW1hY3M6IERvbid0IGluc3RhbGwgY29tcHJlc3NlZCBhcmNoaXZlcy4KClNlZSA8 aHR0cDovL2lzc3Vlcy5ndWl4LmdudS5vcmcvNDU2NzYjMz4uCgoqIGdudS9wYWNrYWdlcy9lbWFj cy5zY20gKGVtYWNzKVsjOmNvbmZpZ3VyZS1mbGFnc106CkFkZCAtLXdpdGhvdXQtY29tcHJlc3Mt aW5zdGFsbC4KKGVtYWNzLW1pbmltYWwpWyM6Y29uZmlndXJlLWZsYWdzXTogTGlrZXdpc2UuCi0t LQogZ251L3BhY2thZ2VzL2VtYWNzLnNjbSB8IDQgKysrLQogMSBmaWxlIGNoYW5nZWQsIDMgaW5z ZXJ0aW9ucygrKSwgMSBkZWxldGlvbigtKQoKZGlmZiAtLWdpdCBhL2dudS9wYWNrYWdlcy9lbWFj cy5zY20gYi9nbnUvcGFja2FnZXMvZW1hY3Muc2NtCmluZGV4IGNhMTQ1ODRhZGEuLmFhNjM2Yjhj OWIgMTAwNjQ0Ci0tLSBhL2dudS9wYWNrYWdlcy9lbWFjcy5zY20KKysrIGIvZ251L3BhY2thZ2Vz L2VtYWNzLnNjbQpAQCAtMTI0LDYgKzEyNCw3IEBACiAgICAgIGAoIzp0ZXN0cz8gI2YgICAgICAg ICAgICAgICAgICAgICAgOyBubyBjaGVjayB0YXJnZXQKICAgICAgICAjOmNvbmZpZ3VyZS1mbGFn cyAobGlzdCAiLS13aXRoLW1vZHVsZXMiCiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg Ii0td2l0aC1jYWlybyIKKyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAiLS13aXRob3V0 LWNvbXByZXNzLWluc3RhbGwiCiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIi0tZGlz YWJsZS1idWlsZC1kZXRhaWxzIikKICAgICAgICAjOnBoYXNlcwogICAgICAgIChtb2RpZnktcGhh c2VzICVzdGFuZGFyZC1waGFzZXMKQEAgLTM1NSw3ICszNTYsOCBAQCBhbHNvIGVuYWJsZWQgYW5k IHdvcmtzIHdpdGhvdXQgZ2xpdGNoZXMgZXZlbiBvbiBYIHNlcnZlci4iKSkpKQogICAgIChhcmd1 bWVudHMKICAgICAgKHN1YnN0aXR1dGUta2V5d29yZC1hcmd1bWVudHMgKHBhY2thZ2UtYXJndW1l bnRzIGVtYWNzKQogICAgICAgICgoIzpjb25maWd1cmUtZmxhZ3MgZmxhZ3MgJycoKSkKLSAgICAg ICAgYChsaXN0ICItLXdpdGgtZ251dGxzPW5vIiAiLS1kaXNhYmxlLWJ1aWxkLWRldGFpbHMiKSkK KyAgICAgICAgYChsaXN0ICItLXdpdGgtZ251dGxzPW5vIiAiLS1kaXNhYmxlLWJ1aWxkLWRldGFp bHMiCisgICAgICAgICAgICAgICAiLS13aXRob3V0LWNvbXByZXNzLWluc3RhbGwiKSkKICAgICAg ICAoKCM6cGhhc2VzIHBoYXNlcykKICAgICAgICAgYChtb2RpZnktcGhhc2VzICxwaGFzZXMKICAg ICAgICAgICAgKGRlbGV0ZSAncmVzdG9yZS1lbWFjcy1wZG1wKQotLSAKMi4zMC4wCgo= --=-UZ7bSDYiGU4d4OZNtwAU--
bug-guix@HIDDEN:bug#45676; Package guix.
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From: Tobias Geerinckx-Rice <me@HIDDEN>
To: Miguel =?utf-8?Q?=C3=81ngel?= Arruga Vivas <rosen644835@HIDDEN>
Subject: Re: bug#45676: Store references inside compressed data
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Hi!
Miguel =C3=81ngel Arruga Vivas wrote:
> These aren't taken into account by the grafting process, which=20
> may lead
> to issues when store paths are located inside that kind of=20
> files.
It's true. It's a known trade-off of an otherwise=20
almost-zero-effort yet fast reference scanner. I don't think it's=20
a bug per se, but it is something of which to be aware. I also=20
think this trade-off is worth it.
Luckily, this case is easier to fix than the infamous=20
<http://issues.guix.gnu.org/24703>, because the right solution is=20
simple:
> - Compressed libraries: e.g. Smalltalk modules.
> - Compressed executable or data files: e.g. library.el.gz.
Let's stop installing compressed executables & data files. We=20
already avoid compressed .jars and other renamed zip files. It=20
ain't right.
It's not 1998, my hard drive isn't 1.1GB, and I didn't just=20
reinstall Slackware because I =E2=80=98accidentally=E2=80=99 gzexe'd gzip.
Gzipping a tiny handful of Lisp or Smalltalk files is pointless=20
when zstd {,de}compresses my entire 500GB SSD better and faster,=20
at the file system level where it now squarely belongs. Without=20
breaking Guix.
Kind regards,
T G-R
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From: Tobias Geerinckx-Rice <me@HIDDEN>
To: Miguel =?utf-8?Q?=C3=81ngel?= Arruga Vivas <rosen644835@HIDDEN>
Subject: Re: bug#45676: Store references inside compressed data
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Hi!
Miguel =C3=81ngel Arruga Vivas wrote:
> These aren't taken into account by the grafting process, which=20
> may lead
> to issues when store paths are located inside that kind of=20
> files.
It's true. It's a known trade-off of an otherwise=20
almost-zero-effort yet fast reference scanner. I don't think it's=20
a bug per se, but it is something of which to be aware. I also=20
think this trade-off is worth it.
Luckily, this case is easier to fix than the infamous=20
<http://issues.guix.gnu.org/24703>, because the right solution is=20
simple:
> - Compressed libraries: e.g. Smalltalk modules.
> - Compressed executable or data files: e.g. library.el.gz.
Let's stop installing compressed executables & data files. We=20
already avoid compressed .jars and other renamed zip files. It=20
ain't right.
It's not 1998, my hard drive isn't 1.1GB, and I didn't just=20
reinstall Slackware because I =E2=80=98accidentally=E2=80=99 gzexe'd gzip.
Gzipping a tiny handful of Lisp or Smalltalk files is pointless=20
when zstd {,de}compresses my entire 500GB SSD better and faster,=20
at the file system level where it now squarely belongs. Without=20
breaking Guix.
Kind regards,
T G-R
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bug-guix@HIDDEN:bug#45676; Package guix.
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If you have specific instances of this type of bug, please report them.
bug-guix@HIDDEN:bug#45676; Package guix.
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Tue, 5 Jan 2021 15:22:12 -0500 (EST) Date: Tue, 5 Jan 2021 15:22:10 -0500 From: Leo Famulari <leo@HIDDEN> To: Miguel =?iso-8859-1?Q?=C1ngel?= Arruga Vivas <rosen644835@HIDDEN> Subject: Re: bug#45676: Store references inside compressed data Message-ID: <X/TKctxY2x8DIw8A@HIDDEN> References: <8735zf30yw.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <8735zf30yw.fsf@HIDDEN> X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 45676 Cc: 45676 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) On Tue, Jan 05, 2021 at 03:36:07PM +0100, Miguel ﾁngel Arruga Vivas wrote: > There are several binary formats that allow compression of the > executable image, or some of its data, which is decompress at runtime: > > - Kernel images. > - Compressed libraries: e.g. Smalltalk modules. > - Compressed executable or data files: e.g. library.el.gz. > > These aren't taken into account by the grafting process, which may lead > to issues when store paths are located inside that kind of files. It's a serious problem, and not just because of grafting. These obscured references can cause things to be garbage collected inappropriately. Here is an older case of the same problem: https://bugs.gnu.org/24703 It was resolved by patching GCC.
bug-guix@HIDDEN:bug#45676; Package guix.
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[146.158.193.36]) by smtp.gmail.com with ESMTPSA id r7sm4423678wmh.2.2021.01.05.06.36.09 for <bug-guix@HIDDEN> (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 05 Jan 2021 06:36:10 -0800 (PST) From: =?utf-8?Q?Miguel_=C3=81ngel_Arruga_Vivas?= <rosen644835@HIDDEN> To: bug-guix@HIDDEN Subject: Store references inside compressed data Date: Tue, 05 Jan 2021 15:36:07 +0100 Message-ID: <8735zf30yw.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=2a00:1450:4864:20::12a; envelope-from=rosen644835@HIDDEN; helo=mail-lf1-x12a.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.1 (-) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -2.1 (--) There are several binary formats that allow compression of the executable image, or some of its data, which is decompress at runtime: - Kernel images. - Compressed libraries: e.g. Smalltalk modules. - Compressed executable or data files: e.g. library.el.gz. These aren't taken into account by the grafting process, which may lead to issues when store paths are located inside that kind of files.
Miguel ﾃ］gel Arruga Vivas <rosen644835@HIDDEN>:bug-guix@HIDDEN.
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