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SubjectRe: MTD kobject warnings due to block layer changes
On Thu, Aug 28 2008, Manuel Lauss wrote:
> Hello,
>
> Todays -git spits out these wanings during boot, caused by
> Commit abf5439370491dd6fbb4fe1a7939680d2a9bc9d4
> ( block: move cmdfilter from gendisk to request_queue ):
>
> Using physmap partition information
> Creating 3 MTD partitions on "physmap-flash":
> 0x00000000-0x01c00000 : "User FS"
> 0x01c00000-0x01c40000 : "booter"
> kobject (8511c410): tried to init an initialized object, something is seriously wrong.
> Call Trace:
> [<8036644c>] dump_stack+0x8/0x34
> [<8021f050>] kobject_init+0x50/0xcc
> [<8021fa18>] kobject_init_and_add+0x24/0x58
> [<8021d20c>] blk_register_filter+0x4c/0x64
> [<8021c194>] add_disk+0x78/0xe0
> [<8027d14c>] add_mtd_blktrans_dev+0x254/0x278
> [<8027c8f0>] blktrans_notify_add+0x40/0x78
> [<80279c00>] add_mtd_device+0xd0/0x150
> [<8027b090>] add_mtd_partitions+0x568/0x5d8
> [<80285458>] physmap_flash_probe+0x2ac/0x334
> [<802644f8>] driver_probe_device+0x12c/0x244
> [<8026465c>] __driver_attach+0x4c/0x84
> [<80263c64>] bus_for_each_dev+0x58/0xac
> [<802633ec>] bus_add_driver+0xc4/0x24c
> [<802648e0>] driver_register+0xcc/0x184
> [<80100460>] _stext+0x60/0x1bc
>
> 0x01c40000-0x01fe0000 : "vmlinux.elf"
> kobject (8511c410): tried to init an initialized object, something is seriously wrong.
> Call Trace:
> [<8036644c>] dump_stack+0x8/0x34
> [<8021f050>] kobject_init+0x50/0xcc
> [<8021fa18>] kobject_init_and_add+0x24/0x58
> [<8021d20c>] blk_register_filter+0x4c/0x64
> [<8021c194>] add_disk+0x78/0xe0
> [<8027d14c>] add_mtd_blktrans_dev+0x254/0x278
> [<8027c8f0>] blktrans_notify_add+0x40/0x78
> [<80279c00>] add_mtd_device+0xd0/0x150
> [<8027b090>] add_mtd_partitions+0x568/0x5d8
> [<80285458>] physmap_flash_probe+0x2ac/0x334
> [<802644f8>] driver_probe_device+0x12c/0x244
> [<8026465c>] __driver_attach+0x4c/0x84
> [<80263c64>] bus_for_each_dev+0x58/0xac
> [<802633ec>] bus_add_driver+0xc4/0x24c
> [<802648e0>] driver_register+0xcc/0x184
> [<80100460>] _stext+0x60/0x1bc
>
> NAND device: Manufacturer ID: 0xec, Chip ID: 0xf1 (Samsung NAND 128MiB 3,3V 8-bit)
> Scanning device for bad blocks
> Creating 1 MTD partitions on "gen_nand":
> 0x00000000-0x08000000 : "NAND FS 0"
> kobject (8511c410): tried to init an initialized object, something is seriously wrong.
> Call Trace:
> [<8036644c>] dump_stack+0x8/0x34
> [<8021f050>] kobject_init+0x50/0xcc
> [<8021fa18>] kobject_init_and_add+0x24/0x58
> [<8021d20c>] blk_register_filter+0x4c/0x64
> [<8021c194>] add_disk+0x78/0xe0
> [<8027d14c>] add_mtd_blktrans_dev+0x254/0x278
> [<8027c8f0>] blktrans_notify_add+0x40/0x78
> [<80279c00>] add_mtd_device+0xd0/0x150
> [<8027b090>] add_mtd_partitions+0x568/0x5d8
> [<804016b0>] plat_nand_probe+0x1e8/0x24c
> [<802644f8>] driver_probe_device+0x12c/0x244
> [<8026465c>] __driver_attach+0x4c/0x84
> [<80263c64>] bus_for_each_dev+0x58/0xac
> [<802633ec>] bus_add_driver+0xc4/0x24c
> [<802648e0>] driver_register+0xcc/0x184
> [<80100460>] _stext+0x60/0x1bc

Tomo? I don't see how this is happening. The queue is properly zeroed,
so no chance ->state_initialized being crap.

--
Jens Axboe



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