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Date: Sat, 18 Apr 2009 09:17:10 +0100 From: Alan Jenkins <alan-jenkins@...fmail.co.uk> To: Johannes Berg <johannes@...solutions.net> CC: netdev@...r.kernel.org Subject: Re: rfkill rewrite bug Johannes Berg wrote: > I think I fixed that now, I allowed using set_sw_state before register > and that didn't go too well with the LED system w/o any checks. > > johannes > Ok, I retried with v6. It seemed to work well enough; my wireless toggle key worked and either state was preserved over suspend and hibernation. When I looked at the code earlier, I saw no obvious replacement for rfkill_set_default(). So I tried disabling the wireless and rebooting to see what happened. It didn't like that :-). [ 3.258061] ------------[ cut here ]------------ [ 3.258160] kernel BUG at kernel/workqueue.c:192! [ 3.258256] invalid opcode: 0000 [#1] [ 3.258391] last sysfs file: /sys/module/backlight/initstate [ 3.258489] Modules linked in: video(+) output eeepc_laptop(+) backlight ac battery rfkill but ton processor evdev thermal fan ata_generic [ 3.259261] [ 3.259346] Pid: 1571, comm: modprobe Not tainted (2.6.30-rc2-wleeepc #13) 701 [ 3.259482] EIP: 0060:[<c0129e0a>] EFLAGS: 00010203 CPU: 0 [ 3.259590] EIP is at queue_work_on+0x1a/0x31 [ 3.259687] EAX: df089730 EBX: df00a060 ECX: df08972c EDX: 00000000 [ 3.259790] ESI: e0045f54 EDI: df284800 EBP: df361e3c ESP: df361e38 [ 3.259893] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 [ 3.259996] Process modprobe (pid: 1571, ti=df360000 task=de853c00 task.ti=df360000) [ 3.260131] Stack: [ 3.260160] df089600 df361e44 c0129e41 df361e4c c0129e52 df361e5c e00125f7 00010000 [ 3.260160] df09c400 df361e80 e00458b9 00000000 00000200 00000010 de59ae90 df284800 [ 3.260160] ffffffed e0047474 df361e9c c02116c3 df2849fc ffffffda df2849fc f fffffed [ 3.260160] Call Trace: [ 3.260160] [<c0129e41>] ? queue_work+0xe/0x10 [ 3.260160] [<c0129e52>] ? schedule_work+0xf/0x11 [ 3.260160] [<e00125f7>] ? rfkill_set_sw_state+0x4c/0x69 [rfkill] [ 3.260160] [<e00458b9>] ? eeepc_hotk_add+0x2c7/0x3ec [eeepc_laptop] [ 3.260160] [<c02116c3>] ? acpi_device_probe+0x44/0x127 [ 3.260160] [<c0249719>] ? driver_probe_device+0x7f/0xf2 [ 3.260160] [<c02497cf>] ? __driver_attach+0x43/0x5f [ 3.260160] [<c0248dcb>] ? bus_for_each_dev+0x39/0x5a [ 3.260160] [<c02495ec>] ? driver_attach+0x14/0x16 [ 3.260160] [<c024978c>] ? __driver_attach+0x0/0x5f [ 3.260160] [<c02492cf>] ? bus_add_driver+0xd7/0x1e7 [ 3.260160] [<c02499d5>] ? driver_register+0x7b/0xd7 [ 3.260160] [<c0212d44>] ? acpi_bus_register_driver+0x3a/0x3c [ 3.260160] [<e004a022>] ? eeepc_laptop_init+0x22/0x1b9 [eeepc_laptop] [ 3.260160] [<c0101131>] ? _stext+0x49/0x10b [ 3.260160] [<e004a000>] ? eeepc_laptop_init+0x0/0x1b9 [eeepc_laptop] [ 3.260160] [<c012f476>] ? __blocking_notifier_call_chain+0x40/0x4c [ 3.260160] [<c013a738>] ? sys_init_module+0x87/0x18f [ 3.260160] [<c0102804>] ? sysenter_do_call+0x12/0x22 [ 3.260160] Code: 83 e2 fc 8b 4a 14 89 c2 8b 01 e8 d9 ff ff ff 5d c3 55 89 e5 53 89 d3 0f ba 29 00 19 c0 31 d2 85 c0 75 1a 8d 41 04 39 41 04 74 04 <0f> 0b eb fe 8b 03 89 ca e8 b0 ff ff ff ba 01 00 00 00 5b 89 d0 [ 3.260160] EIP: [<c0129e0a>] queue_work_on+0x1a/0x31 SS:ESP 0068:df361e38 [ 3.269670] ---[ end trace f8b6941350b5e97c ]--- Thanks Alan -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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