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Wed, 16 Jun 2021 05:54:42 -0700 (PDT) Received: from [192.168.1.134] ([198.8.77.61]) by smtp.gmail.com with ESMTPSA id c34sm491591otu.42.2021.06.16.05.54.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 16 Jun 2021 05:54:42 -0700 (PDT) Subject: Re: kernel panic when scanning MTD partitions To: Corentin Labbe , miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com Cc: linux-block@vger.kernel.org, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org References: From: Jens Axboe Message-ID: <1424d9da-5e11-3ba8-82ae-85f95f60ca9d@kernel.dk> Date: Wed, 16 Jun 2021 06:54:41 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 6/16/21 6:24 AM, Corentin Labbe wrote: > Hello > > When scanning MTD partitions my kernel panic: > Searching for RedBoot partition table in 30000000.flash at offset 0xfe0000 > 7 RedBoot partitions found on MTD device 30000000.flash > Creating 7 MTD partitions on "30000000.flash": > 0x000000000000-0x000000020000 : "BOOT" > 8<--- cut here --- > Unable to handle kernel NULL pointer dereference at virtual address 00000034 > pgd = (ptrval) > [00000034] *pgd=00000000 > Internal error: Oops: 17 [#1] PREEMPT ARM > Modules linked in: > CPU: 0 PID: 1 Comm: swapper Not tainted 5.13.0-rc6-next-20210615+ #101 > Hardware name: Gemini (Device Tree) > PC is at _set_bit+0x20/0x4c > LR is at blk_queue_write_cache+0x20/0x5c > pc : [] lr : [] psr: 60000093 > sp : c1439ca0 ip : 60000013 fp : c4058c00 > r10: 00000000 r9 : c4058ab8 r8 : c1c553b8 > r7 : c3f71080 r6 : 00000000 r5 : 00000000 r4 : 00000000 > r3 : 00020000 r2 : 00000011 r1 : 00000034 r0 : 00000000 > Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none > Control: 0000397f Table: 02338000 DAC: 00000053 > Register r0 information: NULL pointer > Register r1 information: non-paged memory > Register r2 information: non-paged memory > Register r3 information: non-paged memory > Register r4 information: NULL pointer > Register r5 information: NULL pointer > Register r6 information: NULL pointer > Register r7 information: slab kmalloc-128 start c3f71080 pointer offset 0 size 128 > Register r8 information: slab dentry start c1c553b8 pointer offset 0 size 40 > Register r9 information: slab kmalloc-1k start c4058800 pointer offset 696 size 1024 > Register r10 information: NULL pointer > Register r11 information: slab kmalloc-1k start c4058c00 pointer offset 0 size 1024 > Register r12 information: non-paged memory > Process swapper (pid: 1, stack limit = 0x(ptrval)) > Stack: (0xc1439ca0 to 0xc143a000) > 9ca0: c231a480 c07ab67c 00000000 c03cd1b8 00000000 c00f4b18 c07ab67c c231a480 > 9cc0: c4058c00 c07ab67c 05a00000 c03ce474 c07ab67c c4058c00 c07ab658 c03ccf88 > 9ce0: c4058c00 c07ab660 c07ab434 c03c7328 c068ab50 00000000 c4058cf8 c40912c0 > 9d00: ffffffff 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > 9d20: 00000101 00000000 00000001 c03c6ba8 00000000 00020000 00000001 00000001 > 9d40: c4058c00 00000000 00000000 4af56ea3 00000000 c4058800 c4058800 c406f000 > 9d60: 00000007 c03ca0fc 00000000 00000000 00000007 c07ab638 c05c6c84 00000000 > 9d80: 00000007 c4058800 c1438000 00000000 00000000 c03c9f90 00000001 c05c6c88 > 9da0: 00000000 00000000 c406f000 00000007 c07ab638 4af56ea3 00002201 c4058800 > 9dc0: c05c6c84 00000000 00000000 c221c2a0 c2215810 00000000 00000000 c03c7694 > 9de0: 00000001 c4009c20 c4008500 c2215800 c221c2a0 c03dc4a0 00000000 c0196864 > 9e00: 00000000 c4008500 c4052b58 00000000 00000002 4af56ea3 00000000 00000000 > 9e20: c2215810 c07ab928 00000000 c07ab928 00000000 c07bb000 c06f73e0 c037b898 > 9e40: c2215810 c0815554 00000000 00000000 c07ab928 c03796fc c2215810 c07ab928 > 9e60: c2215854 c07ab928 c071c830 c06d408c c07bb000 c0379b4c c2215810 00000000 > 9e80: c2215854 c037a0ec 00000000 c07ab928 c2215810 c07a9fb0 c071c830 c037a17c > 9ea0: 00000000 c07ab928 c037a0f4 c0377584 c143e11c c143e10c c140c530 4af56ea3 > 9ec0: c07ab928 c4008480 00000000 c0378a68 c068d2f4 c068d2f4 c06f73e0 c07ab928 > 9ee0: 00000000 00000000 c07bb000 c037a818 c07117f8 ffffe000 00000000 c00097ac > 9f00: c1403b00 c1403b08 c1403aff c0035200 00000000 c0694bc0 0000009f 00000000 > 9f20: 00000000 c06f73e0 00000006 00000006 00000000 c1403b16 c1403b1d 4af56ea3 > 9f40: 00000000 00000006 0000009f 4af56ea3 c071c84c c0724380 00000007 c1403b00 > 9f60: c071c850 c06f8108 00000006 00000006 00000000 c06f73e0 00000000 0000009f > 9f80: c0558560 00000000 c0558560 00000000 00000000 00000000 00000000 00000000 > 9fa0: 00000000 c0558570 00000000 c0008348 00000000 00000000 00000000 00000000 > 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000 > [] (_set_bit) from [] (blk_queue_write_cache+0x20/0x5c) > [] (blk_queue_write_cache) from [] (add_mtd_blktrans_dev+0x218/0x3cc) > [] (add_mtd_blktrans_dev) from [] (mtdblock_add_mtd+0x60/0x78) > [] (mtdblock_add_mtd) from [] (blktrans_notify_add+0x3c/0x54) > [] (blktrans_notify_add) from [] (add_mtd_device+0x3bc/0x5e8) > [] (add_mtd_device) from [] (add_mtd_partitions+0xc4/0x16c) > [] (add_mtd_partitions) from [] (parse_mtd_partitions+0x370/0x418) > [] (parse_mtd_partitions) from [] (mtd_device_parse_register+0x74/0x2c4) > [] (mtd_device_parse_register) from [] (physmap_flash_probe+0x5e8/0x808) > [] (physmap_flash_probe) from [] (platform_probe+0x5c/0xbc) > [] (platform_probe) from [] (really_probe+0xf8/0x4e8) > [] (really_probe) from [] (driver_probe_device+0x60/0xb8) > [] (driver_probe_device) from [] (device_driver_attach+0xa8/0xb0) > [] (device_driver_attach) from [] (__driver_attach+0x88/0x11c) > [] (__driver_attach) from [] (bus_for_each_dev+0x78/0xc4) > [] (bus_for_each_dev) from [] (bus_add_driver+0xe8/0x1d0) > [] (bus_add_driver) from [] (driver_register+0x88/0x118) > [] (driver_register) from [] (do_one_initcall+0x50/0x1e0) > [] (do_one_initcall) from [] (kernel_init_freeable+0x178/0x200) > [] (kernel_init_freeable) from [] (kernel_init+0x10/0x100) > [] (kernel_init) from [] (ret_from_fork+0x14/0x2c) > Exception stack(0xc1439fb0 to 0xc1439ff8) > 9fa0: 00000000 00000000 00000000 00000000 > 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 > Code: e3a03001 e1a03213 e10fc000 e321f093 (e7912100) > ---[ end trace f3b2f52ba3b0d435 ]--- > Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b > ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ]--- > > This happen on 5.13.0-rc6-next-20210615+ on my ARM Gemini ssi1328. Should be fixed once for-next updates the block branch. -- Jens Axboe 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=-5.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 0F593C48BE6 for ; Wed, 16 Jun 2021 12:55:24 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id C1E4761351 for ; Wed, 16 Jun 2021 12:55:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 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xu+rj/AcmK9w9FApTBOL4j7i6Q== X-Google-Smtp-Source: ABdhPJzXUFT2gSbSw8am0Qk28AfjyJO+e/D+7g2xIGy2eyS8Bg2X32hfuchf8dx8bIBBInOMu5QyoQ== X-Received: by 2002:aca:d615:: with SMTP id n21mr7265791oig.32.1623848082779; Wed, 16 Jun 2021 05:54:42 -0700 (PDT) Received: from [192.168.1.134] ([198.8.77.61]) by smtp.gmail.com with ESMTPSA id c34sm491591otu.42.2021.06.16.05.54.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 16 Jun 2021 05:54:42 -0700 (PDT) Subject: Re: kernel panic when scanning MTD partitions To: Corentin Labbe , miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com Cc: linux-block@vger.kernel.org, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org References: From: Jens Axboe Message-ID: <1424d9da-5e11-3ba8-82ae-85f95f60ca9d@kernel.dk> Date: Wed, 16 Jun 2021 06:54:41 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210616_055444_095422_5B9649FD X-CRM114-Status: GOOD ( 14.65 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org On 6/16/21 6:24 AM, Corentin Labbe wrote: > Hello > > When scanning MTD partitions my kernel panic: > Searching for RedBoot partition table in 30000000.flash at offset 0xfe0000 > 7 RedBoot partitions found on MTD device 30000000.flash > Creating 7 MTD partitions on "30000000.flash": > 0x000000000000-0x000000020000 : "BOOT" > 8<--- cut here --- > Unable to handle kernel NULL pointer dereference at virtual address 00000034 > pgd = (ptrval) > [00000034] *pgd=00000000 > Internal error: Oops: 17 [#1] PREEMPT ARM > Modules linked in: > CPU: 0 PID: 1 Comm: swapper Not tainted 5.13.0-rc6-next-20210615+ #101 > Hardware name: Gemini (Device Tree) > PC is at _set_bit+0x20/0x4c > LR is at blk_queue_write_cache+0x20/0x5c > pc : [] lr : [] psr: 60000093 > sp : c1439ca0 ip : 60000013 fp : c4058c00 > r10: 00000000 r9 : c4058ab8 r8 : c1c553b8 > r7 : c3f71080 r6 : 00000000 r5 : 00000000 r4 : 00000000 > r3 : 00020000 r2 : 00000011 r1 : 00000034 r0 : 00000000 > Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none > Control: 0000397f Table: 02338000 DAC: 00000053 > Register r0 information: NULL pointer > Register r1 information: non-paged memory > Register r2 information: non-paged memory > Register r3 information: non-paged memory > Register r4 information: NULL pointer > Register r5 information: NULL pointer > Register r6 information: NULL pointer > Register r7 information: slab kmalloc-128 start c3f71080 pointer offset 0 size 128 > Register r8 information: slab dentry start c1c553b8 pointer offset 0 size 40 > Register r9 information: slab kmalloc-1k start c4058800 pointer offset 696 size 1024 > Register r10 information: NULL pointer > Register r11 information: slab kmalloc-1k start c4058c00 pointer offset 0 size 1024 > Register r12 information: non-paged memory > Process swapper (pid: 1, stack limit = 0x(ptrval)) > Stack: (0xc1439ca0 to 0xc143a000) > 9ca0: c231a480 c07ab67c 00000000 c03cd1b8 00000000 c00f4b18 c07ab67c c231a480 > 9cc0: c4058c00 c07ab67c 05a00000 c03ce474 c07ab67c c4058c00 c07ab658 c03ccf88 > 9ce0: c4058c00 c07ab660 c07ab434 c03c7328 c068ab50 00000000 c4058cf8 c40912c0 > 9d00: ffffffff 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > 9d20: 00000101 00000000 00000001 c03c6ba8 00000000 00020000 00000001 00000001 > 9d40: c4058c00 00000000 00000000 4af56ea3 00000000 c4058800 c4058800 c406f000 > 9d60: 00000007 c03ca0fc 00000000 00000000 00000007 c07ab638 c05c6c84 00000000 > 9d80: 00000007 c4058800 c1438000 00000000 00000000 c03c9f90 00000001 c05c6c88 > 9da0: 00000000 00000000 c406f000 00000007 c07ab638 4af56ea3 00002201 c4058800 > 9dc0: c05c6c84 00000000 00000000 c221c2a0 c2215810 00000000 00000000 c03c7694 > 9de0: 00000001 c4009c20 c4008500 c2215800 c221c2a0 c03dc4a0 00000000 c0196864 > 9e00: 00000000 c4008500 c4052b58 00000000 00000002 4af56ea3 00000000 00000000 > 9e20: c2215810 c07ab928 00000000 c07ab928 00000000 c07bb000 c06f73e0 c037b898 > 9e40: c2215810 c0815554 00000000 00000000 c07ab928 c03796fc c2215810 c07ab928 > 9e60: c2215854 c07ab928 c071c830 c06d408c c07bb000 c0379b4c c2215810 00000000 > 9e80: c2215854 c037a0ec 00000000 c07ab928 c2215810 c07a9fb0 c071c830 c037a17c > 9ea0: 00000000 c07ab928 c037a0f4 c0377584 c143e11c c143e10c c140c530 4af56ea3 > 9ec0: c07ab928 c4008480 00000000 c0378a68 c068d2f4 c068d2f4 c06f73e0 c07ab928 > 9ee0: 00000000 00000000 c07bb000 c037a818 c07117f8 ffffe000 00000000 c00097ac > 9f00: c1403b00 c1403b08 c1403aff c0035200 00000000 c0694bc0 0000009f 00000000 > 9f20: 00000000 c06f73e0 00000006 00000006 00000000 c1403b16 c1403b1d 4af56ea3 > 9f40: 00000000 00000006 0000009f 4af56ea3 c071c84c c0724380 00000007 c1403b00 > 9f60: c071c850 c06f8108 00000006 00000006 00000000 c06f73e0 00000000 0000009f > 9f80: c0558560 00000000 c0558560 00000000 00000000 00000000 00000000 00000000 > 9fa0: 00000000 c0558570 00000000 c0008348 00000000 00000000 00000000 00000000 > 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000 > [] (_set_bit) from [] (blk_queue_write_cache+0x20/0x5c) > [] (blk_queue_write_cache) from [] (add_mtd_blktrans_dev+0x218/0x3cc) > [] (add_mtd_blktrans_dev) from [] (mtdblock_add_mtd+0x60/0x78) > [] (mtdblock_add_mtd) from [] (blktrans_notify_add+0x3c/0x54) > [] (blktrans_notify_add) from [] (add_mtd_device+0x3bc/0x5e8) > [] (add_mtd_device) from [] (add_mtd_partitions+0xc4/0x16c) > [] (add_mtd_partitions) from [] (parse_mtd_partitions+0x370/0x418) > [] (parse_mtd_partitions) from [] (mtd_device_parse_register+0x74/0x2c4) > [] (mtd_device_parse_register) from [] (physmap_flash_probe+0x5e8/0x808) > [] (physmap_flash_probe) from [] (platform_probe+0x5c/0xbc) > [] (platform_probe) from [] (really_probe+0xf8/0x4e8) > [] (really_probe) from [] (driver_probe_device+0x60/0xb8) > [] (driver_probe_device) from [] (device_driver_attach+0xa8/0xb0) > [] (device_driver_attach) from [] (__driver_attach+0x88/0x11c) > [] (__driver_attach) from [] (bus_for_each_dev+0x78/0xc4) > [] (bus_for_each_dev) from [] (bus_add_driver+0xe8/0x1d0) > [] (bus_add_driver) from [] (driver_register+0x88/0x118) > [] (driver_register) from [] (do_one_initcall+0x50/0x1e0) > [] (do_one_initcall) from [] (kernel_init_freeable+0x178/0x200) > [] (kernel_init_freeable) from [] (kernel_init+0x10/0x100) > [] (kernel_init) from [] (ret_from_fork+0x14/0x2c) > Exception stack(0xc1439fb0 to 0xc1439ff8) > 9fa0: 00000000 00000000 00000000 00000000 > 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 > Code: e3a03001 e1a03213 e10fc000 e321f093 (e7912100) > ---[ end trace f3b2f52ba3b0d435 ]--- > Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b > ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ]--- > > This happen on 5.13.0-rc6-next-20210615+ on my ARM Gemini ssi1328. Should be fixed once for-next updates the block branch. -- Jens Axboe ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/