On 6/16/21 6:59 AM, Corentin Labbe wrote: > Le Wed, Jun 16, 2021 at 06:54:41AM -0600, Jens Axboe a écrit : >> 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 : [<c02f2194>] lr : [<c029d6c0>] 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 >>> [<c02f2194>] (_set_bit) from [<c029d6c0>] (blk_queue_write_cache+0x20/0x5c) >>> [<c029d6c0>] (blk_queue_write_cache) from [<c03cd1b8>] (add_mtd_blktrans_dev+0x218/0x3cc) >>> [<c03cd1b8>] (add_mtd_blktrans_dev) from [<c03ce474>] (mtdblock_add_mtd+0x60/0x78) >>> [<c03ce474>] (mtdblock_add_mtd) from [<c03ccf88>] (blktrans_notify_add+0x3c/0x54) >>> [<c03ccf88>] (blktrans_notify_add) from [<c03c7328>] (add_mtd_device+0x3bc/0x5e8) >>> [<c03c7328>] (add_mtd_device) from [<c03ca0fc>] (add_mtd_partitions+0xc4/0x16c) >>> [<c03ca0fc>] (add_mtd_partitions) from [<c03c9f90>] (parse_mtd_partitions+0x370/0x418) >>> [<c03c9f90>] (parse_mtd_partitions) from [<c03c7694>] (mtd_device_parse_register+0x74/0x2c4) >>> [<c03c7694>] (mtd_device_parse_register) from [<c03dc4a0>] (physmap_flash_probe+0x5e8/0x808) >>> [<c03dc4a0>] (physmap_flash_probe) from [<c037b898>] (platform_probe+0x5c/0xbc) >>> [<c037b898>] (platform_probe) from [<c03796fc>] (really_probe+0xf8/0x4e8) >>> [<c03796fc>] (really_probe) from [<c0379b4c>] (driver_probe_device+0x60/0xb8) >>> [<c0379b4c>] (driver_probe_device) from [<c037a0ec>] (device_driver_attach+0xa8/0xb0) >>> [<c037a0ec>] (device_driver_attach) from [<c037a17c>] (__driver_attach+0x88/0x11c) >>> [<c037a17c>] (__driver_attach) from [<c0377584>] (bus_for_each_dev+0x78/0xc4) >>> [<c0377584>] (bus_for_each_dev) from [<c0378a68>] (bus_add_driver+0xe8/0x1d0) >>> [<c0378a68>] (bus_add_driver) from [<c037a818>] (driver_register+0x88/0x118) >>> [<c037a818>] (driver_register) from [<c00097ac>] (do_one_initcall+0x50/0x1e0) >>> [<c00097ac>] (do_one_initcall) from [<c06f8108>] (kernel_init_freeable+0x178/0x200) >>> [<c06f8108>] (kernel_init_freeable) from [<c0558570>] (kernel_init+0x10/0x100) >>> [<c0558570>] (kernel_init) from [<c0008348>] (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. >> > > Thanks, do you have a link to the fix ? or patch name. Yep, this one: https://git.kernel.dk/cgit/linux-block/commit/?h=for-5.14/block&id=07a719f8fdbe4ae0f825fa1a6d2755a63deb265e -- Jens Axboe
