Here is the stack trace I get when I modprobe ath_pci with kernel 2.6.20-6-generic on my MacBook:
macbook kernel: [ 84.696000] Oops: 0002 [#1] macbook kernel: [ 84.696000] SMP macbook kernel: [ 84.696000] CPU: 0 macbook kernel: [ 84.696000] EIP: 0060:[<f8f1b018>] Tainted: P VLI macbook kernel: [ 84.696000] EFLAGS: 00210286 (2.6.20-6-generic #2) macbook kernel: [ 84.696000] EIP is at ath_attach+0x148/0x1530 [ath_pci] macbook kernel: [ 84.696000] eax: 00000000 ebx: 0000001c ecx: 00000000 edx: f4385dd3 macbook kernel: [ 84.696000] esi: df977000 edi: f437e400 ebp: f437e400 esp: f4385d44 macbook kernel: [ 84.696000] ds: 007b es: 007b ss: 0068 macbook kernel: [ 84.696000] Process modprobe (pid: 5839, ti=f4384000 task=dff8da90 task.ti=f4384000) macbook kernel: [ 84.696000] Stack: f8f80000 f4385dcc 00000000 00000000 00000000 00000000 00000000 00000000 macbook kernel: [ 84.696000] f437e000 001c0000 f437fa38 00000000 00000000 00000000 00000000 00000000 macbook kernel: [ 84.696000] 00000000 00000000 00000000 00000000 00000010 f41f3aa0 00000080 c03c0e00 macbook kernel: [ 84.696000] Call Trace: macbook kernel: [ 84.696000] [setup_irq+241/480] setup_irq+0xf1/0x1e0 macbook kernel: [ 84.696000] [<f8f200f0>] ath_pci_probe+0x0/0x370 [ath_pci] macbook kernel: [ 84.696000] [<f8f1d9b0>] ath_intr+0x0/0xb50 [ath_pci] macbook kernel: [ 84.696000] [<f8f202c3>] ath_pci_probe+0x1d3/0x370 [ath_pci] macbook kernel: [ 84.696000] [sysfs_create_link+110/352] sysfs_create_link+0x6e/0x160 macbook kernel: [ 84.696000] [<f8f200f0>] ath_pci_probe+0x0/0x370 [ath_pci] macbook kernel: [ 84.696000] [really_probe+84/320] really_probe+0x54/0x140 macbook kernel: [ 84.696000] [driver_probe_device+73/192] driver_probe_device+0x49/0xc0 macbook kernel: [ 84.696000] [__driver_attach+158/160] __driver_attach+0x9e/0xa0 macbook kernel: [ 84.696000] [bus_for_each_dev+59/96] bus_for_each_dev+0x3b/0x60 macbook kernel: [ 84.696000] [driver_attach+22/32] driver_attach+0x16/0x20 macbook kernel: [ 84.696000] [pci_device_probe+86/128] pci_device_probe+0x56/0x80 macbook kernel: [ 84.696000] [__driver_attach+0/160] __driver_attach+0x0/0xa0 macbook kernel: [ 84.696000] [bus_add_driver+123/416] bus_add_driver+0x7b/0x1a0 macbook kernel: [ 84.696000] [__pci_register_driver+116/192] __pci_register_driver+0x74/0xc0 macbook kernel: [ 84.696000] [<f8dfe030>] init_ath_pci+0x30/0x54 [ath_pci] macbook kernel: [ 84.696000] [sys_init_module+349/7072] sys_init_module+0x15d/0x1ba0 macbook kernel: [ 84.696000] [sys_mmap2+205/208] sys_mmap2+0xcd/0xd0 macbook kernel: [ 84.696000] [syscall_call+7/11] syscall_call+0x7/0xb macbook kernel: [ 84.696000] ======================= macbook kernel: [ 84.696000] Code: 89 40 04 c7 85 a4 17 00 00 e0 f6 f1 f8 8b 54 24 20 8d 84 24 88 00 00 00 89 44 24 04 8b 42 1c 89 ea 89 04 24 89 d8 e8 58 a2 01 00 <01> 00 00 00 24 2c 0f 84 98 05 00 00 8b 5c 24 2c 8b 43 04 3d 00 macbook kernel: [ 84.696000] EIP: [<f8f1b018>] ath_attach+0x148/0x1530 [ath_pci] SS:ESP 0068:f4385d44 -- Madwifi driver prevents MacBook from booting https://launchpad.net/bugs/82238 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs