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Miller" , Paolo Abeni , Eric Dumazet , cgroups@vger.kernel.org, Sparc kernel list , Thorsten Leemhuis , Linus Torvalds Subject: Re: [sparc64] fails to boot, (was: Re: [PATCH memcg v6] net: set proper memcg for net_init hooks allocations) Message-ID: <20220926102812.2b0696a7@kernel.org> In-Reply-To: References: <6b362c6e-9c80-4344-9430-b831f9871a3c@openvz.org> <20220918092849.GA10314@u164.east.ru> <20220921170259.GI8331@blackbody.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1664213297; a=rsa-sha256; cv=none; b=EBF8qcIdvSSVd8K04xP/WFIDEsNKDZWVdb1SvE9WqF5s3Gd9cPDJu5sqAFfzLmVrvdr8BV QUhpWJXUazga4cOL05yDZDcBMR13Py6EnL0Y8D9pw+R48IWnRuiDBb93HSHbRwuIES3sOt AhlRUrr13xPTpFyJN3CQ5YsBlq/rgRo= ARC-Authentication-Results: i=1; imf17.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=QPSqUe9U; dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf17.hostedemail.com: domain of kuba@kernel.org designates 145.40.68.75 as permitted sender) smtp.mailfrom=kuba@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1664213297; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=TpZUQWxRgvsRBZ9B6zo0p7FzXoiaePpQxMiDDnNBgKQ=; b=v9aoGu/+mGmgzfeK68HfVfGyC2KzQtxbZk+cTIgL8mtfiyrLkgkwg/mko5ZzCyHYjy3GYa O3ha8XX6pmOHM4+r+3CCgDszsRIvPm0zzlc6OFGutN6XlU22p2hHkTcbiS0jdG3Y72Lzzf OaxTfk4gcJwlbudbDX7ZLxovvLVfMJM= X-Rspam-User: X-Rspamd-Queue-Id: 6A71A4000A X-Rspamd-Server: rspam08 X-Stat-Signature: mxg9n6gj8kj31kioa4qc6xzcp5ahcutn Authentication-Results: imf17.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=QPSqUe9U; dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf17.hostedemail.com: domain of kuba@kernel.org designates 145.40.68.75 as permitted sender) smtp.mailfrom=kuba@kernel.org X-HE-Tag: 1664213297-102531 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, 26 Sep 2022 16:06:08 +0300 Anatoly Pugachev wrote: > On Wed, Sep 21, 2022 at 8:03 PM Michal Koutn=C3=BD wro= te: > > On Wed, Sep 21, 2022 at 05:44:56PM +0300, Anatoly Pugachev wrote: =20 > > > reverting this patch makes my sparc64 box boot successfully. =20 > > > > The failed address falls into vmmemmap region (per your boot log > > output). It looks like the respective page/folio (of init_net struct) is > > unbacked there (and likely folio_test_slab fails dereferencing ->flags). > > > > Would you mind sharing your kernel's config? > > (I'm most curious about CONFIG_SPARSMEM_VMEMMAP, I'm not familiar with > > your arch at all though.) =20 >=20 > mator@ttip:~/dmesg$ zcat config-6.0.0-rc6-00010-gb7f0f527dc3c.gz | grep V= MEMMAP > CONFIG_SPARSEMEM_VMEMMAP_ENABLE=3Dy > CONFIG_SPARSEMEM_VMEMMAP=3Dy >=20 > I do upload config and boot logs to > https://github.com/mator/sparc64-dmesg >=20 > building a new kernel version/releases as 'make olddefconfig && make -j' > current version of booted 6.0.0-rc6 is available as > https://github.com/mator/sparc64-dmesg/blob/master/config-6.0.0-rc6-00010= -gb7f0f527dc3c.gz Forgive my uniformed chime-in but Linus seemed happy with the size of -rc7 and now I'm worried there won't be an -rc8. AFAICT this is a 6.0 regression. Vasily, Shakeel, do we have a plan to fix this?