Hello, on your arm board (pxa270) we need to migrate to Kernel 2.6.31.x due to block device driver api changes. When compiling the new kernel with the same .config as with 2.6.30.4 we get a kernel oops (attached later). The udevd version is 125 which is that one used in debian. This version works well for kernel 2.6.30.1, 2.6.30.4 but not for 2.6.31.0, 2.6.31.1 and 2.6.31.2. Do we need to change something in the kernel config? Has the according userspace API changed? Any ideas on how to debug this? Thanks, Marco Synthesizing the initial hotplug events...Unable to handle kernel paging request at virtual address 03a02001 pgd = c39e8000 [03a02001] *pgd=00000000 Internal error: Oops: f5 [#1] Modules linked in: CPU: 0 Not tainted (2.6.31.1 #3) PC is at strlen+0x18/0x2c LR is at kobject_get_path+0x2c/0xac pc : [<c013efac>] lr : [<c013b910>] psr: 20000013 sp : c39cbe48 ip : c39cbe58 fp : c39cbe54 r10: c02e2c9c r9 : 00000000 r8 : c3802c60 r7 : c0020260 r6 : 000000d0 r5 : 00000007 r4 : 0000c328 r3 : 00000000 r2 : 03a02001 r1 : 000000d0 r0 : 03a02001 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 0000397f Table: a39e8000 DAC: 00000015 Process udevadm (pid: 232, stack limit = 0xc39ca270) Stack: (0xc39cbe48 to 0xc39cc000) be40: c39cbe78 c39cbe58 c013b910 c013efa0 c0020258 00000003 be60: c3932e40 c391d000 c3802c60 c39cbe9c c39cbe7c c015b814 c013b8f0 00000000 be80: 00000000 00000003 c391d000 c3932e48 c39cbee8 c39cbea0 c013be28 c015b63c bea0: 00000000 00000000 c399f3e0 c028bc9e c0291f72 c39cbed4 00000000 00000000 bec0: c3932e40 00000003 c39638e0 c3932e48 c02e2cdc c39638f4 c39cbf80 c39cbef8 bee0: c39cbeec c013c068 c013bc54 c39cbf14 c39cbefc c015b8bc c013c060 00000000 bf00: c39137c8 00000003 c39cbf24 c39cbf18 c015b0a0 c015b84c c39cbf50 c39cbf28 bf20: c00cb83c c015b084 c38dee60 00016d7c c39cbf80 00000004 00000003 c39ca000 bf40: 00000000 c39cbf7c c39cbf54 c008a804 c00cb73c c39cbf94 c39cbf64 00000000 bf60: 00000000 c38dee60 00000004 c0024064 c39cbfa4 c39cbf80 c008a984 c008a75c bf80: 00000000 00000000 00000000 00000003 00016d7c bea5b354 00000000 c39cbfa8 bfa0: c0023ec0 c008a944 00000003 00016d7c 00000003 00016d7c 00000003 00000000 bfc0: 00000003 00016d7c bea5b354 00025990 00016d7c 00200200 00000000 00100100 bfe0: 00000000 bea5b34c 0000d0a0 40119274 40000010 00000003 ffffffff ffffffff Backtrace: [<c013ef94>] (strlen+0x0/0x2c) from [<c013b910>] (kobject_get_path +0x2c/0xac) [<c013b8e4>] (kobject_get_path+0x0/0xac) from [<c015b814>] (dev_uevent +0x1e4/0x210) r8:c3802c60 r7:c391d000 r6:c3932e40 r5:00000003 r4:c0020258 [<c015b630>] (dev_uevent+0x0/0x210) from [<c013be28>] (kobject_uevent_env+0x1e0/0x40c) r7:c3932e48 r6:c391d000 r5:00000003 r4:00000000 [<c013bc48>] (kobject_uevent_env+0x0/0x40c) from [<c013c068>] (kobject_uevent+0x14/0x18) [<c013c054>] (kobject_uevent+0x0/0x18) from [<c015b8bc>] (store_uevent +0x7c/0x8c) [<c015b840>] (store_uevent+0x0/0x8c) from [<c015b0a0>] (dev_attr_store +0x28/0x2c) r5:00000003 r4:c39137c8 [<c015b078>] (dev_attr_store+0x0/0x2c) from [<c00cb83c>] (sysfs_write_file+0x10c/0x144) [<c00cb730>] (sysfs_write_file+0x0/0x144) from [<c008a804>] (vfs_write +0xb4/0x160) [<c008a750>] (vfs_write+0x0/0x160) from [<c008a984>] (sys_write +0x4c/0x80) r8:c0024064 r7:00000004 r6:c38dee60 r5:00000000 r4:00000000 [<c008a938>] (sys_write+0x0/0x80) from [<c0023ec0>] (ret_fast_syscall +0x0/0x2c) r6:bea5b354 r5:00016d7c r4:00000003 Code: e24cb004 e1a02000 ea000000 e2800001 (e5d03000) ---[ end trace 0f9f3a3683bef81b ]--- Segmentation fault failed. Waiting for /dev to be fully populated...done. -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
