From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from wout3-smtp.messagingengine.com (wout3-smtp.messagingengine.com [64.147.123.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E2FAB7B for ; Fri, 1 Apr 2022 15:11:03 +0000 (UTC) Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.west.internal (Postfix) with ESMTP id 10C1E3201FCD; Fri, 1 Apr 2022 11:11:01 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute1.internal (MEProxy); Fri, 01 Apr 2022 11:11:03 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cerno.tech; h=cc :cc:content-type:date:date:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to; s=fm3; bh=85vYE7geyFacYR8Bxp5rx99f4lvCAgcFm8Mv3d x7Et0=; b=uqN93OsRY4pv8Qlr/shSQR72EtAJvueZ4TOqtxSPxzqVAPgyt85kgc 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X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvvddrudeiiedgkeehucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhepfffhvffukfhfgggtuggjsehgtderredttddvnecuhfhrohhmpeforgigihhm vgcutfhiphgrrhguuceomhgrgihimhgvsegtvghrnhhordhtvggthheqnecuggftrfgrth htvghrnhepffdujefgtefhudelleekffegteejueduudekveffteeuvdehgeefffeutdff jeevnecuffhomhgrihhnpehgihhtlhgrsgdrtghomhdpthhugigsuhhilhgurdgtohhmpd hkvghrnhgvlhdrohhrghenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgr ihhlfhhrohhmpehmrgigihhmvgestggvrhhnohdrthgvtghh X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 1 Apr 2022 11:11:00 -0400 (EDT) Date: Fri, 1 Apr 2022 17:10:58 +0200 From: Maxime Ripard To: Naresh Kamboju Cc: linux-clk , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , linux-stm32@st-md-mailman.stormreply.com, Linux ARM , open list , lkft-triage@lists.linaro.org, regressions@lists.linux.dev, gabriel.fernandez@foss.st.com, Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Maxime Coquelin , Alexandre Torgue , Philipp Zabel , Nicolas Dechesne Subject: Re: [next] db845c: WARNING: CPU: 5 PID: 8 at drivers/clk/clk-divider.c:139 divider_recalc_rate Message-ID: <20220401151058.fipdax3kvmxknctv@houat> References: Precedence: bulk X-Mailing-List: regressions@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="25docxotcljt756a" Content-Disposition: inline In-Reply-To: --25docxotcljt756a Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, On Thu, Mar 31, 2022 at 05:33:57PM +0530, Naresh Kamboju wrote: > Following kernel warning noticed on db845c while booting linux next-20220= 331. >=20 > metadata: > git_ref: master > git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next > git_sha: fdcbcd1348f4ef713668bae1b0fa9774e1811205 > git_describe: next-20220331 > kernel_version: 5.17.0 > kernel-config: https://builds.tuxbuild.com/278RLnhgJL7XdlJbcbv07jiwbYB/= config >=20 > Boot log: > [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x517f803c] > [ 0.000000] Linux version 5.17.0-next-20220331 (tuxmake@tuxmake) > (aarch64-linux-gnu-gcc (Debian 11.2.0-18) 11.2.0, GNU ld (GNU Binutils > for Debian) 2.38) #1 SMP PREEMPT @1648699852 > [ 0.000000] Machine model: Thundercomm Dragonboard 845c > > [ 8.131366] ------------[ cut here ]------------ > [ 8.131374] dsi0_pll_bit_clk: Zero divisor and CLK_DIVIDER_ALLOW_ZERO = not set > [ 8.131387] WARNING: CPU: 5 PID: 8 at drivers/clk/clk-divider.c:139 > divider_recalc_rate+0x8c/0xc0 > [ 8.131398] Modules linked in: qcom_spmi_adc5 snd_soc_sdm845 > qcom_vadc_common qcom_spmi_temp_alarm qcom_pon crct10dif_ce rtc_pm8xxx > snd_soc_rt5663 msm snd_soc_qcom_common gpu_sched snd_soc_rl6231 > soundwire_bus reset_qcom_pdc drm_dp_helper qcom_camss hci_uart > videobuf2_dma_sg btqca v4l2_fwnode venus_core ath10k_snoc v4l2_async > btbcm ath10k_core i2c_qcom_geni v4l2_mem2mem videobuf2_memops > videobuf2_v4l2 ath bluetooth camcc_sdm845 videobuf2_common > spi_geni_qcom i2c_qcom_cci qcom_rng mac80211 xhci_pci qcom_q6v5_mss > xhci_pci_renesas cfg80211 icc_osm_l3 slim_qcom_ngd_ctrl qcom_wdt > rfkill qrtr lmh pdr_interface display_connector slimbus qcom_q6v5_pas > drm_kms_helper qcom_pil_info qcom_q6v5 qcom_sysmon qcom_common > qcom_glink_smem qmi_helpers drm mdt_loader socinfo rmtfs_mem fuse > [ 8.131462] CPU: 5 PID: 8 Comm: kworker/u16:0 Not tainted > 5.17.0-next-20220331 #1 > [ 8.131465] Hardware name: Thundercomm Dragonboard 845c (DT) > [ 8.131467] Workqueue: events_unbound deferred_probe_work_func > [ 8.131475] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYP= E=3D--) > [ 8.131477] pc : divider_recalc_rate+0x8c/0xc0 > [ 8.131479] lr : divider_recalc_rate+0x8c/0xc0 > [ 8.131481] sp : ffff8000080936c0 > [ 8.131482] x29: ffff8000080936c0 x28: ffff781940e58d00 x27: ffffa7f3f= 1bc6d38 > [ 8.131485] x26: ffffa7f3f1bc6cf8 x25: 0000000000000000 x24: fffffffff= fffffff > [ 8.131488] x23: ffff781947e8a400 x22: 000000003b9aca50 x21: ffff78194= 0be0800 > [ 8.131491] x20: ffff781947e8a800 x19: 000000003b9aca50 x18: 000000000= 0000000 > [ 8.131494] x17: 0000000000000000 x16: 0000000000000000 x15: 000000000= 0000000 > [ 8.131497] x14: ffff7819bd718000 x13: 0a74657320746f6e x12: 204f52455= a5f574f > [ 8.131500] x11: 4c4c415f52454449 x10: 5649445f4b4c4320 x9 : ffffa7f3f= 011de84 > [ 8.131502] x8 : 445f4b4c4320646e x7 : 6120726f73697669 x6 : 000000000= 0000001 > [ 8.131505] x5 : ffffa7f3f288f000 x4 : ffffa7f3f288f2d0 x3 : 000000000= 0000000 > [ 8.131508] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff78194= 02c7000 > [ 8.131511] Call trace: > [ 8.131512] divider_recalc_rate+0x8c/0xc0 > [ 8.131513] clk_divider_recalc_rate+0x64/0x90 > [ 8.131515] clk_recalc+0x40/0xb0 > [ 8.131519] clk_calc_subtree+0x58/0x90 > [ 8.131521] clk_calc_subtree+0x70/0x90 > [ 8.131523] clk_calc_new_rates+0x150/0x290 > [ 8.131526] clk_calc_new_rates+0x100/0x290 > [ 8.131528] clk_calc_new_rates+0x100/0x290 > [ 8.131530] clk_calc_new_rates+0x100/0x290 > [ 8.131533] clk_core_set_rate_nolock+0xa0/0x2a4 > [ 8.131535] clk_set_rate_range_nolock.part.0+0xbc/0x2a0 > [ 8.131538] __clk_put+0x70/0x140 > [ 8.131540] clk_put+0x1c/0x30 > [ 8.131543] of_clk_set_defaults+0x140/0x3c0 > [ 8.131546] platform_probe+0x48/0xf0 > [ 8.131548] really_probe+0x184/0x3d0 > [ 8.131550] __driver_probe_device+0x11c/0x190 > [ 8.131553] driver_probe_device+0x44/0xf4 > [ 8.131556] __device_attach_driver+0xa4/0x140 > [ 8.131558] bus_for_each_drv+0x84/0xe0 > [ 8.131561] __device_attach+0xe4/0x1c0 > [ 8.131563] device_initial_probe+0x20/0x30 > [ 8.131565] bus_probe_device+0xa4/0xb0 > [ 8.131567] deferred_probe_work_func+0xa8/0xfc > [ 8.131570] process_one_work+0x1dc/0x450 > [ 8.131575] worker_thread+0x154/0x450 > [ 8.131577] kthread+0x100/0x110 > [ 8.131579] ret_from_fork+0x10/0x20 > [ 8.131584] ---[ end trace 0000000000000000 ]--- > [ 8.131588] ------------[ cut here ]------------ I'm not sure if it's feasible, but if it is, it looks like something that could be fixed by the patch pasted here: https://lore.kernel.org/linux-clk/20220401122736.5yvanksa4pla7uql@houat/ Could you test it? Thanks! Maxime --25docxotcljt756a Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCYkcWAgAKCRDj7w1vZxhR xQhqAQD9TRfKP+yInwBbsA9UH7rk4a9uaL5qTy8IEhUfFGVMcgEA+j6eFXzx3DyM UV7SUiD406ZMAkW0dK1UzfyTnNfYagE= =U5oE -----END PGP SIGNATURE----- --25docxotcljt756a--