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Fri, 29 Oct 2021 05:43:33 +0000 (UTC) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 4969813AE9; Fri, 29 Oct 2021 05:43:33 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id gEYGEAWKe2HDUQAAMHmgww (envelope-from ); Fri, 29 Oct 2021 05:43:33 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: a586b931-5579-48ac-ac47-be7ddfb8d9ce DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1635486213; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=w8qnuh6NKeWK8CUZKe2fxzHcUtWJLDFvEgoVy0TQ3H8=; b=CuN8zqc7FXWe7JJB3e0RaI7fApYnSfqOk5VScYYESql2ja1+fhTGd7u0itqs0yXD58D/DD d3Qctcar1jEYmDdhJNGV48RqeL4VDK7xpam1DmK9FcUqdf0+bslIhi7gFD+uInhTjHuHCL 7qZ5PjGGtta/+bkBs2Bzf4PlhwQWc08= To: Stefano Stabellini Cc: Andrew Cooper , xen-devel@lists.xenproject.org, iwj@xenproject.org, cardoe@cardoe.com, wl@xen.org, anthony.perard@citrix.com, Stefano Stabellini References: <20211021230839.10794-2-sstabellini@kernel.org> <19aa9196-eb5f-22a1-206c-c9c87ee79fa9@citrix.com> <8c0a2a97-04ab-4836-fc35-026dd7c122a4@suse.com> <4f82901a-2e74-f4ee-311e-b8187d856745@suse.com> From: Juergen Gross Subject: Re: [PATCH 2/3] automation: Linux 5.10.74 test-artifact Message-ID: Date: Fri, 29 Oct 2021 07:43:32 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="aaoTVkTsdCnKxrv9qpQYkb4ljIpnyQMjA" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --aaoTVkTsdCnKxrv9qpQYkb4ljIpnyQMjA Content-Type: multipart/mixed; boundary="qyBtStghmxWAQUApAxQujhDGdFBHIsCd1"; protected-headers="v1" From: Juergen Gross To: Stefano Stabellini Cc: Andrew Cooper , xen-devel@lists.xenproject.org, iwj@xenproject.org, cardoe@cardoe.com, wl@xen.org, anthony.perard@citrix.com, Stefano Stabellini Message-ID: Subject: Re: [PATCH 2/3] automation: Linux 5.10.74 test-artifact References: <20211021230839.10794-2-sstabellini@kernel.org> <19aa9196-eb5f-22a1-206c-c9c87ee79fa9@citrix.com> <8c0a2a97-04ab-4836-fc35-026dd7c122a4@suse.com> <4f82901a-2e74-f4ee-311e-b8187d856745@suse.com> In-Reply-To: --qyBtStghmxWAQUApAxQujhDGdFBHIsCd1 Content-Type: multipart/mixed; boundary="------------00C444EF7015E3FAD7CEB0EB" Content-Language: en-US This is a multi-part message in MIME format. --------------00C444EF7015E3FAD7CEB0EB Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable On 28.10.21 18:41, Stefano Stabellini wrote: > On Thu, 28 Oct 2021, Juergen Gross wrote: >> On 28.10.21 01:24, Stefano Stabellini wrote: >>> On Wed, 27 Oct 2021, Stefano Stabellini wrote: >>>> On Wed, 27 Oct 2021, Juergen Gross wrote: >>>>> On 26.10.21 02:54, Stefano Stabellini wrote: >>>>>> On Mon, 25 Oct 2021, Juergen Gross wrote: >>>>>>> On 22.10.21 21:41, Stefano Stabellini wrote: >>>>>>>> +Juergen >>>>>>>> >>>>>>>> On Fri, 22 Oct 2021, Andrew Cooper wrote: >>>>>>>>> On 22/10/2021 00:08, Stefano Stabellini wrote: >>>>>>>>>> +# build depends >>>>>>>>>> +RUN apt-get update && \ >>>>>>>>>> + apt-get --quiet --yes install \ >>>>>>>>>> + build-essential \ >>>>>>>>>> + libssl-dev \ >>>>>>>>>> + bc \ >>>>>>>>>> + curl \ >>>>>>>>>> + flex \ >>>>>>>>>> + bison \ >>>>>>>>>> + libelf-dev \ >>>>>>>>>> + && \ >>>>>>>>>> + \ >>>>>>>>>> + # Build the kernel >>>>>>>>>> + curl -fsSLO >>>>>>>>>> https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-"$LINUX_VER= SION".tar.xz >>>>>>>>>> && \ >>>>>>>>>> + tar xvJf linux-"$LINUX_VERSION".tar.xz && \ >>>>>>>>>> + cd linux-"$LINUX_VERSION" && \ >>>>>>>>>> + make defconfig && \ >>>>>>>>>> + make xen.config && \ >>>>>>>>>> + cp .config .config.orig && \ >>>>>>>>>> + cat .config.orig | grep XEN | grep =3Dm |sed 's/=3Dm/=3Dy= /g' >> >>>>>>>>>> .config >>>>>>>>>> && \ >>>>>>>>>> + make -j$(nproc) bzImage && \ >>>>>>>>> >>>>>>>>> defconfig is huuuuge.=C2=A0 Can we use tinyconfig instead? >>>>>>>>> >>>>>>>>> Also, you want to turn off CONFIG_MODULES seeing as you only >>>>>>>>> copy >>>>>>>>> bzImage to the test. >>>>>>>>> >>>>>>>>> This also fixes the fact that `grep XEN` also matches >>>>>>>>> CONFIG_NETXEN_NIC >>>>>>>>> which has nothing to do with Xen. >>>>>>>> >>>>>>>> Tinyconfig would be a good idea but it crashes on QEMU with the >>>>>>>> appended >>>>>>>> boot log. I did: >>>>>>>> >>>>>>>> # make tinyconfig >>>>>>>> # make xen.config >>>>>>>> # make bzImage >>>>>>>> >>>>>>>> Of course we could have our own tailored special kernel config f= or >>>>>>>> this >>>>>>>> kernel but I like the simplicify of "make tinyconfig" or "make >>>>>>>> defconfig" followed by "make xen.config". >>>>>>>> >>>>>>>> Unless you know one kconfig option or two that we need to add to= >>>>>>>> tinyconfig to make it work my preference is to go with defconfig= >>>>>>>> for >>>>>>>> now. >>>>>>> >>>>>>> You will need to add the dom0 and SMP related config options at >>>>>>> least. >>>>>>> >>>>>>> I'll have a look at config.xen, which is a little bit weird: it >>>>>>> configures the backends, but not dom0. >>>>>> >>>>>> Thanks, it would be good if make tinyconfig && make xen.config wou= ld >>>>>> just work on QEMU. In the meantime I'll keep defconfig for this te= st, >>>>>> we >>>>>> can always improve later. >>>>> >>>>> Can you please test the attached patch? >>>> >>>> Yes, that works, thanks! >>> >>> Sorry, I spoke too soon: same error as before: >>> >>> https://gitlab.com/xen-project/people/sstabellini/xen/-/jobs/17229096= 07/raw >>> >>> (XEN) Hardware Dom0 crashed: rebooting machine in 5 seconds. >>> >>> No output from the kernel. >> >> This is not very surprising, as tinyconfig doesn't have CONFIG_PRINTK.= >> BTW, it doesn't have initrd support either (BLK_DEV_RAM and >> BLK_DEV_INITRD), so I added those to xen.config as well. >> >> With the (updated) attached patch the kernel boots fine as dom0 until >> rootfs is tried to be mounted on a physical machine. >> >> I've added CONFIG_BUG, too, in order to have more debugging output if >> needed. >=20 > Much better, now there is output: > https://gitlab.com/xen-project/people/sstabellini/xen/-/jobs/1726396600= /raw >=20 > This kernel is used as dom0 and from the logs it looks like for dom0 we= > need a couple more things: > - flocks CONFIG_FILE_LOCKING probably wants to be added. > - the kconfig to recognize #!/bin/sh This is probably CONFIG_BINFMT_SCRIPT. I'm not sure those should be added to the upstream xen.config. 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