| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20080901142949.GA18081@doriath.ww600.siemens.net> Date: Mon, 1 Sep 2008 18:29:50 +0400 From: Dmitry Baryshkov <dbaryshkov@...il.com> To: linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org Cc: axboe@...nel.dk, dwmw2@...radead.org Subject: warning during mtd registration in 2.6.27-rc5 Hi, Since commit abf5439370491dd6fbb4fe1a7939680d2a9bc9d4 I'm seeing this problem: kobject (c3abad68): tried to init an initialized object, something is seriously wrong. [<c0027ff0>] (dump_stack+0x0/0x14) from [<c013c484>] (kobject_init+0x40/0x78) [<c013c444>] (kobject_init+0x0/0x78) from [<c013ca24>] (kobject_init_and_add+0x20/0x44) r5:c3abad68 r4:c3ac2520 [<c013ca08>] (kobject_init_and_add+0x4/0x44) from [<c0137c6c>] (blk_register_filter+0x48/0x60) r5:c3ab4060 r4:c3aba880 [<c0137c24>] (blk_register_filter+0x0/0x60) from [<c01366c4>] (add_disk+0x60/0xb8) r4:c3ac2400 [<c0136664>] (add_disk+0x0/0xb8) from [<c01a6994>] (add_mtd_blktrans_dev+0x210/0x244) r5:c3ab4060 r4:00000001 [<c01a6784>] (add_mtd_blktrans_dev+0x0/0x244) from [<c01a6bbc>] (mtdblock_add_mtd+0x58/0x64) r8:c03c7910 r7:c3ab6100 r6:c03c6bd4 r5:c03c6c04 r4:c3ab6100 [<c01a6b64>] (mtdblock_add_mtd+0x0/0x64) from [<c01a6144>] (blktrans_notify_add+0x3c/0x68) r5:c3ab6100 r4:c03c6c04 [<c01a6108>] (blktrans_notify_add+0x0/0x68) from [<c01a3a20>] (add_mtd_device+0xc0/0x120) r6:c03c6b80 r5:c3ab6100 r4:c03c6bc4 [<c01a3960>] (add_mtd_device+0x0/0x120) from [<c01a4e50>] (add_one_partition+0x468/0x500) r6:c3ac2000 r5:00700000 r4:c3ab6100 [<c01a49e8>] (add_one_partition+0x0/0x500) from [<c01a4f20>] (add_mtd_partitions+0x38/0x7c) [<c01a4ee8>] (add_mtd_partitions+0x0/0x7c) from [<c0016a48>] (sharpsl_nand_init+0x1dc/0x238) .... This happens when adding mtd partitions. I've traced it to the fact that mtd partition devices share the genhd queue with the whole chip block device. Thus blk_register_filter receives the same pointer for the chip and for each registered partition. -- With best wishes Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists