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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EE10DC43334 for ; Mon, 4 Jul 2022 14:21:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ZO6W1HBCZHbqUcBrgwU11viCHWyjp4ktCw5H4Mxe8zs=; b=R+1xUA3ZiN6aQj vmdV1/xxP++8OHyOqWhFT3OCs9OVTWikKZRDLmszy3Vi+KTewqANgWjRoLF33N13WWEBmXn0WvWTW 6m7uhElOrDceiZmWnuTdCDlCChlfBcjByhw266CPK4wpewSXxv+mLPHAgU2+pLHKZyGNBw5+OCGTF 4lHOeYg9fNq0GTi1CCFsKN/zFxOSXQPuYNf0LRE+myO78h6CURkZeM5AW55pCWLq/N19jE6PL0M/P f5zFEXRS5fFgLQkr3Qa5q+dI11r/i/ZPYVd6ygYe0yMXBmkMmFb+dClHcArtoLRfP1dj7cUtBmILU E7PVY2t5EowjlA6ve2QA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o8Mve-009Pl8-Ef; Mon, 04 Jul 2022 14:19:58 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o8Mva-009PjJ-B3 for linux-arm-kernel@lists.infradead.org; Mon, 04 Jul 2022 14:19:56 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id A2825B80F02; Mon, 4 Jul 2022 14:19:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 50C77C3411E; Mon, 4 Jul 2022 14:19:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1656944391; bh=7vo3mqe9Qcsda9vM7KMrdZX6HLtI93fHFj//LQvLa1E=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=JyxgDDmspKLKZARO6/0mzW5SyZmrYTpHMagY6ROaJRWlOhs1AHvKsyP4PRLGGO/sT xUAP5m5gCDulzdWfXJYocg1lFFzf/ujfTFCClQ1iw+gPd1kDRnka5akEXlOGKIGt8O KEM+SpeYUseM6xTZbNEQhfdD4nQlHHYyelhtgC77K6MMnIs1ojTpIaEe2k7MHVU3QN Vq0aFOptRokK+nRvx3TK91Qs1IM5t9bQaZ3/dpGaGR1NqkeTqtBEoB82rnYrNeRX/s n6xN05qpqIZAIUMGMhGWbEV8TliWRIME0b7b2zVbO0AvS7jreQT0CPdT9pSjQYvmXh F3yXEXunoL8WQ== Date: Mon, 4 Jul 2022 15:19:45 +0100 From: Will Deacon To: Robin Murphy Cc: Naresh Kamboju , open list , lkft-triage@lists.linaro.org, regressions@lists.linux.dev, Linux ARM , LTP List , Linus Torvalds , Catalin Marinas , brauner@kernel.org, Vincent Guittot Subject: Re: 5.19.0-rc5 : Raspberry Pi 4 : Unable to handle kernel paging request at virtual address Message-ID: <20220704141945.GD31684@willie-the-truck> References: <20220704112605.GB31553@willie-the-truck> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220704_071954_733169_00C58FAC X-CRM114-Status: GOOD ( 16.78 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Jul 04, 2022 at 02:37:52PM +0100, Robin Murphy wrote: > On 2022-07-04 12:26, Will Deacon wrote: > > On Mon, Jul 04, 2022 at 01:28:30PM +0530, Naresh Kamboju wrote: > > > While running LTP controllers tests on arm64 Raspberry Pi 4 Model B > > > the following kernel crash noticed. > > > > > > Reported-by: Linux Kernel Functional Testing > > > > > > metadata: > > > git_ref: master > > > git_repo: https://gitlab.com/Linaro/lkft/mirrors/torvalds/linux-mainline > > > git_sha: 88084a3df1672e131ddc1b4e39eeacfd39864acf > > > kernel_version: 5.19.0-rc5 > > > kernel-config: https://builds.tuxbuild.com/2BSEyt8Sb19HSj6SnBFiMo6kiQh/config > > > build-url: https://gitlab.com/Linaro/lkft/mirrors/torvalds/linux-mainline/-/pipelines/579007773 > > > artifact-location: https://builds.tuxbuild.com/2BSEyt8Sb19HSj6SnBFiMo6kiQh > > > vmlinux.xz: https://builds.tuxbuild.com/2BSEyt8Sb19HSj6SnBFiMo6kiQh/vmlinux.xz > > > System.map: https://builds.tuxbuild.com/2BSEyt8Sb19HSj6SnBFiMo6kiQh/System.map > > > toolchain: gcc-11 > > > > > > Steps to reproduce: > > > ------------------- > > > ./runltp -p -q -f controllers > > > > > > Test log: > > > ---------- > > > cgroup_fj_stress_blkio_4_4_each 1 TPASS: All done! > > > cgroup_fj_stress_blkio_4_4_each 2 TINFO: Removing all ltp subgroups... > > > cgroup_fj_stress_blkio_2_9_each 1 TINFO: Subsystem blkio is mounted at > > > /sys/fs/cgroup/blkio > > > cgroup_fj_stress_blkio_2_9_each 1 TINFO: Creating subgroups ... > > > [ 2414.973441] Unable to handle kernel paging request at virtual > > > address 00620000090336a0 > > > [ 2414.981581] Mem abort info: > > > [ 2414.984480] ESR = 0x0000000086000004 > > > [ 2414.988323] EC = 0x21: IABT (current EL), IL = 32 bits > > > [ 2414.993765] SET = 0, FnV = 0 > > > [ 2414.996905] EA = 0, S1PTW = 0 > > > [ 2415.000124] FSC = 0x04: level 0 translation fault > > > [ 2415.005118] [00620000090336a0] address between user and kernel address ranges > > > [ 2415.012393] Internal error: Oops: 86000004 [#1] PREEMPT SMP > > > [ 2415.018048] Modules linked in: btrfs blake2b_generic libcrc32c > > > raid6_pq zstd_compress xhci_pci snd_soc_hdmi_codec xhci_pci_renesas > > > raspberrypi_cpufreq hci_uart btqca brcmfmac brcmutil btbcm vc4 > > > bluetooth cfg80211 cec drm_display_helper drm_cma_helper rfkill > > > clk_raspberrypi reset_raspberrypi drm_kms_helper crct10dif_ce > > > raspberrypi_hwmon drm i2c_bcm2835 iproc_rng200 rng_core pwm_bcm2835 > > > bcm2711_thermal pcie_brcmstb fuse > > > [ 2415.055725] CPU: 0 PID: 11626 Comm: cgroup_fj_stres Not taintedlinu#1 > > > [ 2415.062965] Hardware name: Raspberry Pi 4 Model B (DT) > > > [ 2415.068175] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) > > > [ 2415.075238] pc : 0x620000090336a0 > > > [ 2415.078600] lr : ktime_get+0x50/0xac > > > [ 2415.082228] sp : ffff80000dfdbb90 > > > [ 2415.085585] x29: ffff80000dfdbb90 x28: 00000000ffffffff x27: ffff00006405e580 > > > [ 2415.092832] x26: ffff00006405e748 x25: 0000000001200000 x24: ffff00006405e180 > > > [ 2415.100076] x23: ffff80000dfdbd68 x22: 0000000000000000 x21: 000002321545f201 > > > [ 2415.107320] x20: 000000000012017e x19: ffff80000ae3b440 x18: ffff000000000000 > > > [ 2415.114564] x17: 0000000000000000 x16: 0000000000000000 x15: 00000000000000dc > > > [ 2415.121809] x14: 0000000001200011 x13: 0000000060000000 x12: 0000ffffa7b6c1e8 > > > [ 2415.129052] x11: 0000000000000040 x10: ffff80000a96c5c0 x9 : ffff8000080990d4 > > > [ 2415.136295] x8 : 0000000000000000 x7 : 0000000000a9c84a x6 : 4480001ec1769752 > > > [ 2415.143538] x5 : 00ffbffeffffffff x4 : 0000000900000000 x3 : 0000000000000000 > > > [ 2415.150781] x2 : ffff80000a94e000 x1 : ffff8000090336a0 x0 : ffff80000ad102f0 > > > [ 2415.158025] Call trace: > > > [ 2415.160498] 0x620000090336a0 > > > [ 2415.163505] copy_process+0xe34/0x1534 > > > > Do you have the disassembly (and source:line infor) around > > copy_process+0xe34/0x1534? The faulting PC is like a messed up copy of x1 > > where the upper bits have been corrupted somehow. > > Even better, according to the vmlinux that LR value points right after a > "blr x1". From the shape of it, looks like it's probably the tk_clock_read() > call. System.map has: ffff8000090336a0 t arch_counter_read so yes, it looks like we want to call that via: clock->read(clock); but the indirect branch goes wrong :/ Naresh -- do you see this repeatably and on more than just one board? Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel