On Wed, 2006-06-21 at 11:43 -0700, keith mannthey wrote: > On Wed, 2006-06-21 at 19:48 +0900, KAMEZAWA Hiroyuki wrote: > > On Tue, 20 Jun 2006 21:18:45 -0700 > > keith mannthey <kmannth@xxxxxxxxxx> wrote: > > > > > On Wed, 2006-06-21 at 11:43 +0900, KAMEZAWA Hiroyuki wrote: > > > > On Tue, 20 Jun 2006 18:28:19 -0700 > > > > keith mannthey <kmannth@xxxxxxxxxx> wrote: > > > > > 1. The current driver is unable to created the mem_device from the hot- > > > > > add event and the hot-add fails with out adding any memory to the > > > > > system. I have address_resources attached to the acpi handle but in > > > > > acpi_memory_get_device calling the path of > > > > > > > > > > acpi_bus_get_device > > > > > acpi_get_parent > > > > > acpi_bus_get_device /*for parent*/ > > > > > acpi_bus_add /*to created the memory device */ > > > > > > > > > > > > > Do you know where it fails ? Update. I have moved to 2.6.17-rc6-mm2 to work with the development acpi_memhotplug driver there. I have added various debug statements and this is what I know. acpi_memory_get_device calls acpi_bus_add acpi_bus_add calls acpi_add_single_object (fails) acpi_add_single_object passes acpi_bus_get_flags finds the device present passes acpi_device_set_context calls acpi_device_register after calling acpi_bus_find_driver ends up if (!result) *child = device; and returns. I do know know much of the call path of what acpi_bus_scan called from acpi_bus_add does but the result from acpi_bus_add is not an ACPI_FAILURE. There is still no memory_device attached to the device and the same condition occurs (no memory_device added). I patched 2.6.17-rc6-mm2 with my patch to check out the rest of the driver and the system Oopsed. Calling acpi_memory_get_resource caused a panic (where as this call structure in the non -mm driver works). Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP: [<ffffffff80345bf8>] acpi_memory_get_resource+0x5b/0xdb PGD 0 Oops: 0000 [2] SMP last sysfs file: /devices/pci0000:00/0000:00:01.0/resource CPU 1 Modules linked in: xt_pkttype ipt_LOG xt_limit acpi_cpufreq freq_table button battery ac ip6t_REJECT xt_tcpudp ipt_REJECT xt_state iptable_mangle iptable_nat ip_nat iptable_filter ip6table_mangle ip_conntrack nfnetlink ip_tables ip6table_filter ip6_tables x_tables ipv6 loop dm_mod tg3 reiserfs edd fan thermal processor sg ips aacraid serverworks sd_mod scsi_mod ide_disk ide_core Pid: 4282, comm: kacpid_notify Not tainted 2.6.17-rc6-mm2-smp #10 RIP: 0010:[<ffffffff80345bf8>] [<ffffffff80345bf8>] acpi_memory_get_resource+0x5b/0xdb RSP: 0018:ffff81017b44dda8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffffffff8040b040 RSI: 0000000200000000 RDI: ffff81017b440001 RBP: ffff81017e0f4580 R08: ffff81017b440000 R09: ffffffff8042983e R10: ffff81017f6044c0 R11: ffffffff8042a921 R12: ffffffff80428e41 R13: ffff81017ff8cc5c R14: ffffffff80345b9d R15: ffff81017e0f4580 FS: 0000000000000000(0000) GS:ffff81017fcb1ac0(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000000 CR3: 0000000000201000 CR4: 00000000000006e0 Process kacpid_notify (pid: 4282, threadinfo ffff81017b44c000, task ffff81017d1957d0) Stack: 0000010101000000 0000000000000000 0000020000000000 0000027fffffff00 0000000000000000 0000008000000000 0000000000000000 ffffffff00000000 ffff81017fc74240 ffff81017ff8cbc0 Call Trace: [<ffffffff803348c2>] acpi_walk_resources+0xf3/0x152 [<ffffffff8024402d>] keventd_create_kthread+0x0/0x61 [<ffffffff803453b2>] acpi_memory_get_device_resources+0x22/0x50 [<ffffffff80345930>] acpi_memory_device_notify+0x1c5/0x3ef [<ffffffff8032ce3d>] acpi_get_data+0x5d/0x6e [<ffffffff8031379b>] acpi_os_execute_thread+0x0/0x1e [<ffffffff8031379b>] acpi_os_execute_thread+0x0/0x1e [<ffffffff8031d5ce>] acpi_ev_notify_dispatch+0x5c/0x65 [<ffffffff803137aa>] acpi_os_execute_thread+0xf/0x1e [<ffffffff8024417a>] kthread+0xec/0x120 [<ffffffff8020a122>] child_rip+0x8/0x12 [<ffffffff8024402d>] keventd_create_kthread+0x0/0x61 [<ffffffff8024408e>] kthread+0x0/0x120 [<ffffffff8020a11a>] child_rip+0x0/0x12 Code: 48 8b 0b 0f 18 09 48 8d 45 10 48 39 c3 75 d1 48 8b 3d 52 1b RIP [<ffffffff80345bf8>] acpi_memory_get_resource+0x5b/0xdb RSP <ffff81017b44dda8> CR2: 0000000000000000 -- keith mannthey <kmannth@xxxxxxxxxx> Linux Technology Center IBM - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
