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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 EF8BCC4361B for ; Sat, 12 Dec 2020 01:25:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B65A72343E for ; Sat, 12 Dec 2020 01:25:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2406228AbgLLBYZ (ORCPT ); Fri, 11 Dec 2020 20:24:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32778 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2405885AbgLLBYR (ORCPT ); Fri, 11 Dec 2020 20:24:17 -0500 Received: from mail-ot1-x330.google.com (mail-ot1-x330.google.com [IPv6:2607:f8b0:4864:20::330]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3C84CC0613D6 for ; Fri, 11 Dec 2020 17:23:37 -0800 (PST) Received: by mail-ot1-x330.google.com with SMTP id x13so10029821oto.8 for ; Fri, 11 Dec 2020 17:23:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:from:date:message-id:subject:to:cc; bh=m3D8/vgpBLV17RrWZnz2RTLc7uiZ41l6KJXaC1DYt20=; b=F3YjqbsoTcExOovF8XqaTiW7Vxbte9BrSCeTSAkpzkku5fE3t04dM7nycvqrWIesf1 eUT40IfwZI+hwCL+P5CKjpUeBWSMXWKzHYzLBElF77syF15l/ontoaMQ9QVZJJHJrioM Op9PRp1Fnrbf8eLdAhKnz9g+jBNWFkc2tYF/YJ4LUrpSwfuBNIbryQG85WXWYZuWS4/d 6YrXmS/3TvciXPEuFHK2k4c7csejik6oMeWxbg2tarIpT/XrFPaw0i60p2yVbsCbfZgH TZXFayoow1idgWl9Set49iybr6hum5sZeM8RLeTpHrNgrwSE0yY7/OkI64w74jqDZ2Jl 8n+w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to:cc; bh=m3D8/vgpBLV17RrWZnz2RTLc7uiZ41l6KJXaC1DYt20=; b=CEWmew/dyJYJRlhnqFLXYZBq5/po1EQ1PoeTVnxCMax1NAMVjNlGginxY7kGwK7ScU C2SxSmgA3UaLBXBD36Dn6nlS4LEIfmH4gxZUo8x7La3GpEib35zfgAPzyOPjCehViGWv HGlZyZQOsTL8BkaA0Dig+CAPRN6M5c8nYxMXW+XePQV9JCR2YGaD9FFy4PmQSqsl2lH6 4hCP/Ah5b74JhzM1nWTa2m1T6e51e0V329uS1M8Xdw456HhAw3U4gTd9T3TFFX3pQzbW /Q4/T+ny38xJlAHQNzKI4ghfv8++So3dWC+vkJ5ihRfw3wT0Cjd4vRXEPVBRSxm3fCoq aQ7g== X-Gm-Message-State: AOAM5336lG/lfBzoSoqNP8QU6OuBmDIh9fPWHxLYz6CN/GefgWoQT60f 7dQGg9t9UEVJK+cawsyurFWhQSo9qKFdE5uQU+Ultw== X-Google-Smtp-Source: ABdhPJwAZq3PU6s+7WVhZLUZ70AepZ41rFfkZJDmAioaR7w4+f9bzCsG9i1jH4QASHaqnYO8Pc3tNR6TH7+A2ZGMSBQ= X-Received: by 2002:a9d:7411:: with SMTP id n17mr11779708otk.262.1607736216431; Fri, 11 Dec 2020 17:23:36 -0800 (PST) MIME-Version: 1.0 From: Dmitry Baryshkov Date: Sat, 12 Dec 2020 04:23:25 +0300 Message-ID: Subject: ath11k/mhi backtraces on shutdown with linux-next To: ath11k@lists.infradead.org, Manivannan Sadhasivam Cc: "open list:DRM DRIVER FOR MSM ADRENO GPU" Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Hello, I've noticed the following backtrace during shutdown stage when rebooting RB5 board, using linux-next/master: [ 31.060483] ath11k_pci 0000:01:00.0: shutdown [ 31.067844] ------------[ cut here ]------------ [ 31.073111] WARNING: CPU: 4 PID: 101 at drivers/iommu/io-pgtable-arm.c:583 __arm_lpae_unmap+0x39c/0x550 [ 31.083205] Modules linked in: [ 31.086801] CPU: 4 PID: 101 Comm: kworker/u17:0 Not tainted 5.10.0-rc7-next-20201211-13326-g8d69e01d5dc5-dirty #1269 [ 31.098077] Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT) [ 31.105437] Workqueue: mhi_hiprio_wq mhi_pm_st_worker [ 31.111124] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO BTYPE=--) [ 31.117789] pc : __arm_lpae_unmap+0x39c/0x550 [ 31.122758] lr : __arm_lpae_unmap+0xf8/0x550 [ 31.127642] sp : ffff800010ac3790 [ 31.131539] x29: ffff800010ac3790 x28: ffff476580b1c800 [ 31.137484] x27: ffffaa405d79c9d8 x26: 0000000000000000 [ 31.143427] x25: 0000000000000003 x24: ffff800010ac3a38 [ 31.149391] x23: 00000000ffbfd000 x22: 0000000000001000 [ 31.155335] x21: ffff476589ec2b00 x20: 0000000000000003 [ 31.161298] x19: 0000000000000000 x18: 0000000000000020 [ 31.167240] x17: 0000000000000000 x16: 0000000000000000 [ 31.173208] x15: 0000000000000001 x14: 0000000700000040 [ 31.179143] x13: 0000000000000001 x12: 0000000000000040 [ 31.185107] x11: 0000000000000000 x10: 0000000000000000 [ 31.191043] x9 : 0000000000000010 x8 : ffff47658ab24fe8 [ 31.197002] x7 : 000000000000000c x6 : 00000000000001fd [ 31.202939] x5 : ffff47658ab24000 x4 : 0000000000000003 [ 31.208893] x3 : 0000000000001000 x2 : 00000000000ffbfd [ 31.214832] x1 : 0000000000000009 x0 : 0000000000000009 [ 31.220771] Call trace: [ 31.223771] __arm_lpae_unmap+0x39c/0x550 [ 31.228373] __arm_lpae_unmap+0xf8/0x550 [ 31.232902] __arm_lpae_unmap+0xf8/0x550 [ 31.237412] arm_lpae_unmap+0x64/0x7c [ 31.241654] arm_smmu_unmap+0x48/0xac [ 31.245893] __iommu_unmap+0xa8/0xfc [ 31.250038] iommu_unmap_fast+0x10/0x1c [ 31.254446] __iommu_dma_unmap+0x80/0x114 [ 31.259032] iommu_dma_free+0x2c/0x50 [ 31.263264] dma_free_attrs+0xdc/0xe0 [ 31.267496] mhi_driver_remove+0x1c8/0x240 [ 31.272171] __device_release_driver+0x188/0x230 [ 31.277393] device_release_driver+0x2c/0x44 [ 31.282246] bus_remove_device+0x124/0x130 [ 31.286927] device_del+0x168/0x420 [ 31.290992] mhi_destroy_device+0x7c/0xa0 [ 31.295584] device_for_each_child+0x5c/0xac [ 31.300451] mhi_pm_st_worker+0x268/0xa20 [ 31.305059] process_one_work+0x1cc/0x360 [ 31.309649] worker_thread+0x2c8/0x470 [ 31.313969] kthread+0x160/0x164 [ 31.317756] ret_from_fork+0x10/0x34 [ 31.321896] ---[ end trace 06455414208da447 ]--- [ 31.327413] ------------[ cut here ]------------ [ 31.332767] WARNING: CPU: 5 PID: 101 at drivers/iommu/dma-iommu.c:497 __iommu_dma_unmap+0x108/0x114 [ 31.342544] Modules linked in: [ 31.346166] CPU: 5 PID: 101 Comm: kworker/u17:0 Tainted: G W 5.10.0-rc7-next-20201211-13326-g8d69e01d5dc5-dirty #1269 [ 31.358891] Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT) [ 31.366275] Workqueue: mhi_hiprio_wq mhi_pm_st_worker [ 31.371972] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO BTYPE=--) [ 31.378655] pc : __iommu_dma_unmap+0x108/0x114 [ 31.383738] lr : __iommu_dma_unmap+0x80/0x114 [ 31.388729] sp : ffff800010ac39e0 [ 31.392648] x29: ffff800010ac39e0 x28: ffff476580b1c800 [ 31.398613] x27: ffffaa405d79c9d8 x26: ffff800010ac3b40 [ 31.404581] x25: 000000000000002c x24: ffff476589ef8000 [ 31.410547] x23: ffff476589ec2a58 x22: 00000000ffbfd000 [ 31.416514] x21: ffff476580dc8000 x20: 00000000ffbfd000 [ 31.422482] x19: 0000000000001000 x18: 0000000000000020 [ 31.428448] x17: 0000000000000000 x16: 0000000000000000 [ 31.434411] x15: 0000000000000001 x14: 0000000700000040 [ 31.440370] x13: 0000000000000001 x12: 0000000000000040 [ 31.446321] x11: 0000000000000000 x10: 0000000000000000 [ 31.452263] x9 : 0000000000000010 x8 : ffff47658ab24fe8 [ 31.458194] x7 : 000000000000000c x6 : 00000000000001fd [ 31.464115] x5 : ffff47658ab24000 x4 : 0000000000000003 [ 31.470031] x3 : 0000000000001000 x2 : 00000000000ffbfd [ 31.475944] x1 : ffff476580acbc10 x0 : 0000000000000000 [ 31.481853] Call trace: [ 31.484826] __iommu_dma_unmap+0x108/0x114 [ 31.489491] iommu_dma_free+0x2c/0x50 [ 31.493714] dma_free_attrs+0xdc/0xe0 [ 31.497935] mhi_driver_remove+0x1c8/0x240 [ 31.502593] __device_release_driver+0x188/0x230 [ 31.507795] device_release_driver+0x2c/0x44 [ 31.512643] bus_remove_device+0x124/0x130 [ 31.517304] device_del+0x168/0x420 [ 31.521346] mhi_destroy_device+0x7c/0xa0 [ 31.525920] device_for_each_child+0x5c/0xac [ 31.530773] mhi_pm_st_worker+0x268/0xa20 [ 31.535352] process_one_work+0x1cc/0x360 [ 31.539933] worker_thread+0x2c8/0x470 [ 31.544248] kthread+0x160/0x164 [ 31.548029] ret_from_fork+0x10/0x34 [ 31.552164] ---[ end trace 06455414208da448 ]--- [ 31.557448] ------------[ cut here ]------------ [ 31.562744] trying to free invalid coherent area: 00000000463408c7 [ 31.569644] WARNING: CPU: 5 PID: 101 at kernel/dma/remap.c:65 dma_common_free_remap+0x3c/0x80 [ 31.578881] Modules linked in: [ 31.582507] CPU: 5 PID: 101 Comm: kworker/u17:0 Tainted: G W 5.10.0-rc7-next-20201211-13326-g8d69e01d5dc5-dirty #1269 [ 31.595234] Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT) [ 31.602622] Workqueue: mhi_hiprio_wq mhi_pm_st_worker [ 31.608326] pstate: 60400005 (nZCv daif +PAN -UAO -TCO BTYPE=--) [ 31.615016] pc : dma_common_free_remap+0x3c/0x80 [ 31.620285] lr : dma_common_free_remap+0x3c/0x80 [ 31.625552] sp : ffff800010ac3a10 [ 31.629481] x29: ffff800010ac3a10 x28: ffff476580b1c800 [ 31.635454] x27: ffffaa405d79c9d8 x26: ffff800010ac3b40 [ 31.641430] x25: 000000000000002c x24: ffffaa405cc9bd18 [ 31.647406] x23: 00000000ffbfd000 x22: 0000000000000000 [ 31.653391] x21: ffff476589e940c0 x20: 0000000000001000 [ 31.659365] x19: ffff80001078d000 x18: 0000000000000030 [ 31.665350] x17: 0000000000000000 x16: 0000000000000001 [ 31.671326] x15: 0000000000000004 x14: ffff47658d31a218 [ 31.677309] x13: 0000000000000000 x12: ffff47658a151950 [ 31.683287] x11: 00000020a75d4044 x10: 00000000000009b0 [ 31.689276] x9 : ffff800010ac3740 x8 : ffff476580dc8a10 [ 31.695255] x7 : ffff4766f6fc79c0 x6 : ffff4766f6fc79c0 [ 31.701245] x5 : 0000000000000000 x4 : ffff4766f6fbd920 [ 31.707231] x3 : ffff4766f6fc4878 x2 : ffff4766f6fbd920 [ 31.713226] x1 : 0000000000000000 x0 : 0000000000000000 [ 31.719204] Call trace: [ 31.722235] dma_common_free_remap+0x3c/0x80 [ 31.727127] __iommu_dma_free+0xfc/0x100 [ 31.731654] iommu_dma_free+0x3c/0x50 [ 31.735907] dma_free_attrs+0xdc/0xe0 [ 31.740158] mhi_driver_remove+0x1c8/0x240 [ 31.744854] __device_release_driver+0x188/0x230 [ 31.750094] device_release_driver+0x2c/0x44 [ 31.754963] bus_remove_device+0x124/0x130 [ 31.759657] device_del+0x168/0x420 [ 31.763728] mhi_destroy_device+0x7c/0xa0 [ 31.768327] device_for_each_child+0x5c/0xac [ 31.773196] mhi_pm_st_worker+0x268/0xa20 [ 31.777795] process_one_work+0x1cc/0x360 [ 31.782400] worker_thread+0x2c8/0x470 [ 31.786734] kthread+0x160/0x164 [ 31.790538] ret_from_fork+0x10/0x34 [ 31.794699] ---[ end trace 06455414208da449 ]--- [ 31.800160] ------------[ cut here ]------------ [ 31.807409] WARNING: CPU: 2 PID: 101 at drivers/iommu/io-pgtable-arm.c:583 __arm_lpae_unmap+0x39c/0x550 [ 31.819609] Modules linked in: [ 31.825324] CPU: 2 PID: 101 Comm: kworker/u17:0 Tainted: G W 5.10.0-rc7-next-20201211-13326-g8d69e01d5dc5-dirty #1269 [ 31.840279] Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT) [ 31.849961] Workqueue: mhi_hiprio_wq mhi_pm_st_worker [ 31.857878] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO BTYPE=--) [ 31.866795] pc : __arm_lpae_unmap+0x39c/0x550 [ 31.874043] lr : __arm_lpae_unmap+0xf8/0x550 [ 31.881180] sp : ffff800010ac3790 [ 31.887330] x29: ffff800010ac3790 x28: ffff476580b1c800 [ 31.895563] x27: ffffaa405d79c9d8 x26: 0000000000000000 [ 31.903811] x25: 0000000000000003 x24: ffff800010ac3a38 [ 31.912024] x23: 00000000ffbfe000 x22: 0000000000001000 [ 31.920249] x21: ffff476589ec2b00 x20: 0000000000000003 [ 31.928446] x19: 0000000000000000 x18: 0000000000000030 [ 31.936640] x17: 0000000000000000 x16: 0000000000000001 [ 31.944834] x15: 0000000000000004 x14: ffff47658d31a218 [ 31.953001] x13: 0000000000000000 x12: ffff47658a151950 [ 31.961182] x11: 00000020a75d4044 x10: 00000000000009b0 [ 31.969378] x9 : ffff800010ac3740 x8 : ffff47658ab24ff0 [ 31.977550] x7 : 000000000000000c x6 : 00000000000001fe [ 31.985769] x5 : ffff47658ab24000 x4 : 0000000000000003 [ 31.993932] x3 : 0000000000001000 x2 : 00000000000ffbfe [ 32.002075] x1 : 0000000000000009 x0 : 0000000000000009 [ 32.010188] Call trace: [ 32.015291] __arm_lpae_unmap+0x39c/0x550 [ 32.021927] __arm_lpae_unmap+0xf8/0x550 [ 32.028382] __arm_lpae_unmap+0xf8/0x550 [ 32.034833] arm_lpae_unmap+0x64/0x7c [ 32.040999] arm_smmu_unmap+0x48/0xac [ 32.047078] __iommu_unmap+0xa8/0xfc [ 32.053077] iommu_unmap_fast+0x10/0x1c [ 32.059342] __iommu_dma_unmap+0x80/0x114 [ 32.065837] iommu_dma_free+0x2c/0x50 [ 32.071929] dma_free_attrs+0xdc/0xe0 [ 32.078009] mhi_driver_remove+0x1c8/0x240 [ 32.084566] __device_release_driver+0x188/0x230 [ 32.091666] device_release_driver+0x2c/0x44 [ 32.098394] bus_remove_device+0x124/0x130 [ 32.105007] device_del+0x168/0x420 [ 32.111003] mhi_destroy_device+0x7c/0xa0 [ 32.117501] device_for_each_child+0x5c/0xac [ 32.124256] mhi_pm_st_worker+0x268/0xa20 [ 32.130776] process_one_work+0x1cc/0x360 [ 32.137311] worker_thread+0x2c8/0x470 [ 32.143536] kthread+0x160/0x164 [ 32.149225] ret_from_fork+0x10/0x34 [ 32.155277] ---[ end trace 06455414208da44a ]--- [ 32.162810] ------------[ cut here ]------------ [ 32.168067] WARNING: CPU: 4 PID: 101 at drivers/iommu/dma-iommu.c:497 __iommu_dma_unmap+0x108/0x114 [ 32.177835] Modules linked in: [ 32.181457] CPU: 4 PID: 101 Comm: kworker/u17:0 Tainted: G W 5.10.0-rc7-next-20201211-13326-g8d69e01d5dc5-dirty #1269 [ 32.194182] Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT) [ 32.201576] Workqueue: mhi_hiprio_wq mhi_pm_st_worker [ 32.207273] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO BTYPE=--) [ 32.213957] pc : __iommu_dma_unmap+0x108/0x114 [ 32.219040] lr : __iommu_dma_unmap+0x80/0x114 [ 32.224031] sp : ffff800010ac39e0 [ 32.227950] x29: ffff800010ac39e0 x28: ffff476580b1c800 [ 32.233920] x27: ffffaa405d79c9d8 x26: ffff800010ac3b40 [ 32.239886] x25: 000000000000002c x24: ffff476589ef8000 [ 32.245857] x23: ffff476589ec2a58 x22: 00000000ffbfe000 [ 32.251831] x21: ffff476580dc8000 x20: 00000000ffbfe000 [ 32.257802] x19: 0000000000001000 x18: 0000000000000030 [ 32.263777] x17: 0000000000000000 x16: 0000000000000001 [ 32.269748] x15: 0000000000000004 x14: ffff47658d31a218 [ 32.275722] x13: 0000000000000000 x12: ffff47658a151950 [ 32.281682] x11: 00000020a75d4044 x10: 00000000000009b0 [ 32.287638] x9 : ffff800010ac3740 x8 : ffff47658ab24ff0 [ 32.293584] x7 : 000000000000000c x6 : 00000000000001fe [ 32.299521] x5 : ffff47658ab24000 x4 : 0000000000000003 [ 32.305464] x3 : 0000000000001000 x2 : 00000000000ffbfe [ 32.311392] x1 : ffff476580acbc10 x0 : 0000000000000000 [ 32.317323] Call trace: [ 32.320311] __iommu_dma_unmap+0x108/0x114 [ 32.324997] iommu_dma_free+0x2c/0x50 [ 32.329262] dma_free_attrs+0xdc/0xe0 [ 32.333501] mhi_driver_remove+0x1c8/0x240 [ 32.338179] __device_release_driver+0x188/0x230 [ 32.343398] device_release_driver+0x2c/0x44 [ 32.348257] bus_remove_device+0x124/0x130 [ 32.352941] device_del+0x168/0x420 [ 32.357009] mhi_destroy_device+0x7c/0xa0 [ 32.361608] device_for_each_child+0x5c/0xac [ 32.366484] mhi_pm_st_worker+0x268/0xa20 [ 32.371079] process_one_work+0x1cc/0x360 [ 32.375674] worker_thread+0x2c8/0x470 [ 32.379999] kthread+0x160/0x164 [ 32.383795] ret_from_fork+0x10/0x34 [ 32.387942] ---[ end trace 06455414208da44b ]--- [ 32.393399] ------------[ cut here ]------------ [ 32.398948] trying to free invalid coherent area: 00000000dd26af7e [ 32.405874] WARNING: CPU: 7 PID: 101 at kernel/dma/remap.c:65 dma_common_free_remap+0x3c/0x80 [ 32.415074] Modules linked in: [ 32.418666] CPU: 7 PID: 101 Comm: kworker/u17:0 Tainted: G W 5.10.0-rc7-next-20201211-13326-g8d69e01d5dc5-dirty #1269 [ 32.431356] Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT) [ 32.438707] Workqueue: mhi_hiprio_wq mhi_pm_st_worker [ 32.444375] pstate: 60400005 (nZCv daif +PAN -UAO -TCO BTYPE=--) [ 32.451026] pc : dma_common_free_remap+0x3c/0x80 [ 32.456254] lr : dma_common_free_remap+0x3c/0x80 [ 32.461480] sp : ffff800010ac3a10 [ 32.465376] x29: ffff800010ac3a10 x28: ffff476580b1c800 [ 32.471312] x27: ffffaa405d79c9d8 x26: ffff800010ac3b40 [ 32.477255] x25: 000000000000002c x24: ffffaa405cc9bd18 [ 32.483195] x23: 00000000ffbfe000 x22: 0000000000000000 [ 32.489149] x21: ffff476589e940c0 x20: 0000000000001000 [ 32.495090] x19: ffff80001077d000 x18: 0000000000000030 [ 32.501037] x17: 0000000000000000 x16: 0000000000000001 [ 32.506979] x15: 0000000000000004 x14: ffff47658d31a218 [ 32.512930] x13: 0000000000000000 x12: ffff47658a151950 [ 32.518872] x11: ffff47658a151918 x10: 00000000000009b0 [ 32.524817] x9 : ffff800010ac3740 x8 : ffff476580dc8a10 [ 32.530764] x7 : ffff4766f6ff59c0 x6 : ffff4766f6ff59c0 [ 32.536710] x5 : 0000000000000000 x4 : ffff4766f6feb920 [ 32.542657] x3 : ffff4766f6ff2878 x2 : ffff4766f6feb920 [ 32.548603] x1 : 0000000000000000 x0 : 0000000000000000 [ 32.554547] Call trace: [ 32.557542] dma_common_free_remap+0x3c/0x80 [ 32.562408] __iommu_dma_free+0xfc/0x100 [ 32.566904] iommu_dma_free+0x3c/0x50 [ 32.571128] dma_free_attrs+0xdc/0xe0 [ 32.575344] mhi_driver_remove+0x1c8/0x240 [ 32.580003] __device_release_driver+0x188/0x230 [ 32.585216] device_release_driver+0x2c/0x44 [ 32.590061] bus_remove_device+0x124/0x130 [ 32.594731] device_del+0x168/0x420 [ 32.598768] mhi_destroy_device+0x7c/0xa0 [ 32.603334] device_for_each_child+0x5c/0xac [ 32.608175] mhi_pm_st_worker+0x268/0xa20 [ 32.612743] process_one_work+0x1cc/0x360 [ 32.617321] worker_thread+0x2c8/0x470 [ 32.621622] kthread+0x160/0x164 [ 32.625397] ret_from_fork+0x10/0x34 [ 32.629522] ---[ end trace 06455414208da44c ]--- [ 32.647234] arm-smmu 15000000.iommu: Unhandled context fault: fsr=0x402, iova=0x00000000, fsynr=0x7f0011, cbfrsynra=0x1c01, cb=4 [ 32.667398] arm-smmu 15000000.iommu: Unhandled context fault: fsr=0x402, iova=0x00000000, fsynr=0x7f0011, cbfrsynra=0x1c01, cb=4 -- With best wishes Dmitry