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b=wa5OwO9yWDZ+m4tm147ehFCtVz7pQqLDS8HUpuWjPiRxj5UUWjwSgI5Zh4aPtG1p0 fvUXZ6Xvt7EQIBzrtiCcJYqhCdOg8zkaDKYXzdQCZVGt4gen9SegcAhX8f+TPsY5Tf 1m3LhVVTmtXL0lOqeuRoL+WQxbqLJ/lSalfZtklg= Date: Mon, 4 Nov 2019 14:51:35 +0100 From: Greg KH To: Jan Stancek Message-ID: <20191104135135.GA2162401@kroah.com> References: <2029139028.10333037.1572874551626.JavaMail.zimbra@redhat.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <2029139028.10333037.1572874551626.JavaMail.zimbra@redhat.com> User-Agent: Mutt/1.12.2 (2019-09-21) Cc: alsa-devel@alsa-project.org, Memory Management , Linux Stable maillist , Jaroslav Kysela , CKI Project , LTP Mailing List Subject: Re: [alsa-devel] =?utf-8?q?=E2=9D=8C_FAIL=3A_Test_report_for_kernel_5?= =?utf-8?q?=2E3=2E9-rc1-dfe283e=2Ecki_=28stable=29?= X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" T24gTW9uLCBOb3YgMDQsIDIwMTkgYXQgMDg6MzU6NTFBTSAtMDUwMCwgSmFuIFN0YW5jZWsgd3Jv dGU6Cj4gCj4gCj4gLS0tLS0gT3JpZ2luYWwgTWVzc2FnZSAtLS0tLQo+ID4gCj4gPiBIZWxsbywK PiA+IAo+ID4gV2UgcmFuIGF1dG9tYXRlZCB0ZXN0cyBvbiBhIHJlY2VudCBjb21taXQgZnJvbSB0 aGlzIGtlcm5lbCB0cmVlOgo+ID4gCj4gPiAgICAgICAgS2VybmVsIHJlcG86Cj4gPiAgICAgICAg Z2l0Oi8vZ2l0Lmtlcm5lbC5vcmcvcHViL3NjbS9saW51eC9rZXJuZWwvZ2l0L3N0YWJsZS9saW51 eC1zdGFibGUtcmMuZ2l0Cj4gPiAgICAgICAgICAgICBDb21taXQ6IGRmZTI4M2U5ZmRhYyAtIExp bnV4IDUuMy45LXJjMQo+ID4gCj4gPiBUaGUgcmVzdWx0cyBvZiB0aGVzZSBhdXRvbWF0ZWQgdGVz dHMgYXJlIHByb3ZpZGVkIGJlbG93Lgo+ID4gCj4gPiAgICAgT3ZlcmFsbCByZXN1bHQ6IEZBSUxF RCAoc2VlIGRldGFpbHMgYmVsb3cpCj4gPiAgICAgICAgICAgICAgTWVyZ2U6IE9LCj4gPiAgICAg ICAgICAgIENvbXBpbGU6IE9LCj4gPiAgICAgICAgICAgICAgVGVzdHM6IEZBSUxFRAo+ID4gCj4g PiBBbGwga2VybmVsIGJpbmFyaWVzLCBjb25maWcgZmlsZXMsIGFuZCBsb2dzIGFyZSBhdmFpbGFi bGUgZm9yIGRvd25sb2FkIGhlcmU6Cj4gPiAKPiA+ICAgaHR0cHM6Ly9hcnRpZmFjdHMuY2tpLXBy b2plY3Qub3JnL3BpcGVsaW5lcy8yNjIzODAKPiA+IAo+ID4gT25lIG9yIG1vcmUga2VybmVsIHRl c3RzIGZhaWxlZDoKPiA+IAo+ID4gICAgIHg4Nl82NDoKPiA+ICAgICAg4p2MIExUUCBsaXRlCj4g Pgo+IAo+IE5vdCBhIDUuMyAtc3RhYmxlIHJlZ3Jlc3Npb24uCj4gCj4gRmFpbHVyZSBjb21lcyBm cm9tIHRlc3QgdGhhdCBzYW5pdHkgY2hlY2tzIGFsbCAvcHJvYyBmaWxlcyBieSBkb2luZwo+IDFr IHJlYWQgZnJvbSBlYWNoLiBUaGVyZSBhcmUgY291cGxlIGlzc3VlcyBpdCBoaXRzIHdydC4gc25k X2hkYV8qLgo+IAo+IEV4YW1wbGUgcmVwcm9kdWNlcjoKPiAgIGRkIGlmPS9zeXMva2VybmVsL2Rl YnVnL3JlZ21hcC9oZGF1ZGlvQzBEMy1oZGF1ZGlvL2FjY2VzcyBvZj1vdXQudHh0IGNvdW50PTEg YnM9MTAyNCBpZmxhZz1ub25ibG9jawoKVGhhdCdzIG5vdCBhIHByb2MgZmlsZSA6KQoKPiBJdCdz IHNsb3cgYW5kIHRyaWdnZXJzIHNvZnQgbG9ja3VwcyBbMV0uIEFuZCBpdCBhbHNvIHJlcXVpcmVz IGxvdAo+IG9mIG1lbW9yeSwgdHJpZ2dlcmluZyBPT01zIG9uIHNtYWxsZXIgVk1zOgo+IDB4MDAw MDAwMDAyNGYwNDM3Yi0weDAwMDAwMDAwMWEzMmIxYzggMTA3Mzc0NTkyMCBzZXFfcmVhZCsweDEz MS8weDQwMCBwYWdlcz0yNjIxNDQgdm1hbGxvYyB2cGFnZXMgTjA9MjYyMTQ0Cj4gCj4gSSdtIGxl YW5pbmcgdG93YXJkcyBza2lwcGluZyBhbGwgcmVnbWFwIGVudHJpZXMgaW4gdGhpcyB0ZXN0Lgo+ IENvbW1lbnRzIGFyZSB3ZWxjb21lZC4KClJhbmRvbWx5IHBva2luZyBhcm91bmQgaW4gZGVidWdm cyBpcyBhIHN1cmUgd2F5IHRvIGNhdXNlIGNyYXNoZXMgYW5kCm1ham9yIHByb2JsZW1zLiAgQWxz bywgZGVidWdmcyBmaWxlcyBhcmUgTk9UIHN0YWJsZSBhbmQgb25seSBmb3IKZGVidWdnaW5nIGFu ZCBzaG91bGQgbmV2ZXIgYmUgZW5hYmxlZCBvbiAicmVhbCIgc3lzdGVtcy4KClNvIHdoYXQgZXhh Y3RseSBpcyB0aGUgdGVzdCB0cnlpbmcgdG8gZG8gaGVyZT8KCnRoYW5rcywKCmdyZWcgay1oCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkFsc2EtZGV2ZWwg bWFpbGluZyBsaXN0CkFsc2EtZGV2ZWxAYWxzYS1wcm9qZWN0Lm9yZwpodHRwczovL21haWxtYW4u YWxzYS1wcm9qZWN0Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2Fsc2EtZGV2ZWwK From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Date: Mon, 4 Nov 2019 14:51:35 +0100 Subject: [LTP] =?utf-8?q?=E2=9D=8C_FAIL=3A_Test_report_for_kernel_5=2E3?= =?utf-8?q?=2E9-rc1-dfe283e=2Ecki_=28stable=29?= In-Reply-To: <2029139028.10333037.1572874551626.JavaMail.zimbra@redhat.com> References: <2029139028.10333037.1572874551626.JavaMail.zimbra@redhat.com> Message-ID: <20191104135135.GA2162401@kroah.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ltp@lists.linux.it On Mon, Nov 04, 2019 at 08:35:51AM -0500, Jan Stancek wrote: > > > ----- Original Message ----- > > > > Hello, > > > > We ran automated tests on a recent commit from this kernel tree: > > > > Kernel repo: > > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git > > Commit: dfe283e9fdac - Linux 5.3.9-rc1 > > > > The results of these automated tests are provided below. > > > > Overall result: FAILED (see details below) > > Merge: OK > > Compile: OK > > Tests: FAILED > > > > All kernel binaries, config files, and logs are available for download here: > > > > https://artifacts.cki-project.org/pipelines/262380 > > > > One or more kernel tests failed: > > > > x86_64: > > ? LTP lite > > > > Not a 5.3 -stable regression. > > Failure comes from test that sanity checks all /proc files by doing > 1k read from each. There are couple issues it hits wrt. snd_hda_*. > > Example reproducer: > dd if=/sys/kernel/debug/regmap/hdaudioC0D3-hdaudio/access of=out.txt count=1 bs=1024 iflag=nonblock That's not a proc file :) > It's slow and triggers soft lockups [1]. And it also requires lot > of memory, triggering OOMs on smaller VMs: > 0x0000000024f0437b-0x000000001a32b1c8 1073745920 seq_read+0x131/0x400 pages=262144 vmalloc vpages N0=262144 > > I'm leaning towards skipping all regmap entries in this test. > Comments are welcomed. Randomly poking around in debugfs is a sure way to cause crashes and major problems. Also, debugfs files are NOT stable and only for debugging and should never be enabled on "real" systems. So what exactly is the test trying to do here? thanks, greg k-h From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 21E47CA9EB5 for ; Mon, 4 Nov 2019 13:51:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DEDB321850 for ; Mon, 4 Nov 2019 13:51:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572875501; bh=RMjBbcJSX/BFL942aPuRy8u04vdxeLErter4JodBkgs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=QRXFEjXk5jXuHVG5kRLPncrrT+yST04Lm7f5FKK1QLCdcmJoGdUMlaO5B3lKB1W48 rFXyywvmulId4WpDwmqlu7Sc0AOXBLyjNyvfu3j0Fv2S6mIFxs//hcuzaTfDpnAHeF R1zvwFpmvcTB0jsdE8ngDrAHkR8a9ld6ALLOpyJU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728807AbfKDNvk (ORCPT ); Mon, 4 Nov 2019 08:51:40 -0500 Received: from mail.kernel.org ([198.145.29.99]:60654 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727663AbfKDNvk (ORCPT ); Mon, 4 Nov 2019 08:51:40 -0500 Received: from localhost (unknown [62.119.166.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id F075821744; Mon, 4 Nov 2019 13:51:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572875499; bh=RMjBbcJSX/BFL942aPuRy8u04vdxeLErter4JodBkgs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=wa5OwO9yWDZ+m4tm147ehFCtVz7pQqLDS8HUpuWjPiRxj5UUWjwSgI5Zh4aPtG1p0 fvUXZ6Xvt7EQIBzrtiCcJYqhCdOg8zkaDKYXzdQCZVGt4gen9SegcAhX8f+TPsY5Tf 1m3LhVVTmtXL0lOqeuRoL+WQxbqLJ/lSalfZtklg= Date: Mon, 4 Nov 2019 14:51:35 +0100 From: Greg KH To: Jan Stancek Cc: CKI Project , Jaroslav Kysela , alsa-devel@alsa-project.org, LTP Mailing List , Linux Stable maillist , Memory Management Subject: Re: =?utf-8?B?4p2MIEZBSUw=?= =?utf-8?Q?=3A?= Test report for kernel 5.3.9-rc1-dfe283e.cki (stable) Message-ID: <20191104135135.GA2162401@kroah.com> References: <2029139028.10333037.1572874551626.JavaMail.zimbra@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <2029139028.10333037.1572874551626.JavaMail.zimbra@redhat.com> User-Agent: Mutt/1.12.2 (2019-09-21) Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Mon, Nov 04, 2019 at 08:35:51AM -0500, Jan Stancek wrote: > > > ----- Original Message ----- > > > > Hello, > > > > We ran automated tests on a recent commit from this kernel tree: > > > > Kernel repo: > > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git > > Commit: dfe283e9fdac - Linux 5.3.9-rc1 > > > > The results of these automated tests are provided below. > > > > Overall result: FAILED (see details below) > > Merge: OK > > Compile: OK > > Tests: FAILED > > > > All kernel binaries, config files, and logs are available for download here: > > > > https://artifacts.cki-project.org/pipelines/262380 > > > > One or more kernel tests failed: > > > > x86_64: > > ❌ LTP lite > > > > Not a 5.3 -stable regression. > > Failure comes from test that sanity checks all /proc files by doing > 1k read from each. There are couple issues it hits wrt. snd_hda_*. > > Example reproducer: > dd if=/sys/kernel/debug/regmap/hdaudioC0D3-hdaudio/access of=out.txt count=1 bs=1024 iflag=nonblock That's not a proc file :) > It's slow and triggers soft lockups [1]. And it also requires lot > of memory, triggering OOMs on smaller VMs: > 0x0000000024f0437b-0x000000001a32b1c8 1073745920 seq_read+0x131/0x400 pages=262144 vmalloc vpages N0=262144 > > I'm leaning towards skipping all regmap entries in this test. > Comments are welcomed. Randomly poking around in debugfs is a sure way to cause crashes and major problems. Also, debugfs files are NOT stable and only for debugging and should never be enabled on "real" systems. So what exactly is the test trying to do here? thanks, greg k-h