The following happened when adding an interface through sysfs on b43, while another one was operating and transmitting data: [42108.560015] b43-phy4 debug: Current TX power output: 14.25 dBm, Desired TX power output: 14.25 dBm [42214.690045] b43-phy4 debug: Current TX power output: 14.25 dBm, Desired TX power output: 14.25 dBm [42262.691175] wmaster0: STA 00:12:17:d4:95:e1 Average rate: 10 (10/1) [42278.273723] Unable to handle kernel paging request for data at address 0x00000000 [42278.274012] Faulting instruction address: 0xc0332848 [42278.274204] Oops: Kernel access of bad area, sig: 11 [#1] [42278.274400] PREEMPT PowerMac [42278.274530] Modules linked in: rc80211_simple b43 ssb zd1211rw_mac80211 appletouch af_packet ecb rng_core mac80211 ohci_hcd pcmcia unix [42278.275192] NIP: c0332848 LR: e20d410c CTR: c0332800 [42278.275376] REGS: d1257d40 TRAP: 0300 Not tainted (2.6.23-rc6-wldev) [42278.275611] MSR: 00001032 <ME,IR,DR> CR: 24242484 XER: 00000000 [42278.275943] DAR: 00000000, DSISR: 40000000 [42278.276096] TASK = d53f6d50[30638] 'bash' THREAD: d1256000 [42278.276293] GPR00: 00000000 d1257df0 d53f6d50 c14395ec d1257e08 c1439000 c14393bc c143947c [42278.276749] GPR08: c143947c 00000000 00009032 d1256000 00000000 100e1258 00000000 00000000 [42278.277204] GPR16: 100edd98 100e0000 100b0000 100e0000 00000000 00000000 100fae28 00000000 [42278.277660] GPR24: 00000001 00000002 00000000 c1439000 c0be11a0 df3323a0 c14393a0 00000000 [42278.278131] NIP [c0332848] skb_dequeue+0x48/0xa0 [42278.278330] LR [e20d410c] ieee80211_if_reinit+0x1c0/0x284 [mac80211] [42278.278630] Call Trace: [42278.278727] [d1257df0] [df3323a0] 0xdf3323a0 (unreliable) [42278.278976] [d1257e00] [e20d410c] ieee80211_if_reinit+0x1c0/0x284 [mac80211] [42278.279279] [d1257e30] [c033af58] register_netdevice+0x3f0/0x408 [42278.279532] [d1257e50] [e20d3e94] ieee80211_if_add+0x118/0x1d0 [mac80211] [42278.279827] [d1257e80] [e20d5a6c] ieee80211_add_iface+0x8c/0x9c [mac80211] [42278.280124] [d1257e90] [c0420608] _store_add_iface+0x70/0x9c [42278.280366] [d1257eb0] [c021a704] dev_attr_store+0x28/0x40 [42278.280605] [d1257ec0] [c00c09ac] sysfs_write_file+0x13c/0x1c4 [42278.280856] [d1257ef0] [c007c56c] vfs_write+0xc0/0x164 [42278.281079] [d1257f10] [c007cbc4] sys_write+0x4c/0x8c [42278.281298] [d1257f40] [c00128e4] ret_from_syscall+0x0/0x38 [42278.281540] --- Exception: c01 at 0xfed0c18 [42278.281714] LR = 0xfe7963c [42278.281831] Instruction dump: [42278.281959] 7c000124 542b0024 812b000c 39290001 912b000c 83e30000 38000000 7f9f1800 [42278.282378] 40be000c 3be00000 48000024 81230008 <817f0000> 3929ffff 91230008 91630000 [42278.282854] note: bash[30638] exited with preempt_count 1 [42278.284214] BUG: scheduling while atomic: bash/0x10000002/30638 [42278.285519] Call Trace: [42278.286708] [d1257b80] [c00082a0] show_stack+0x50/0x184 (unreliable) [42278.288107] [d1257ba0] [c0029d54] __schedule_bug+0x34/0x44 [42278.289443] [d1257bb0] [c04237c8] schedule+0x70/0x3e0 [42278.290765] [d1257be0] [c0029df0] __cond_resched+0x24/0x50 [42278.292080] [d1257bf0] [c0424318] cond_resched+0x40/0x54 [42278.293390] [d1257c00] [c0066c58] unmap_vmas+0x428/0x51c [42278.294678] [d1257c70] [c006a900] exit_mmap+0x74/0x118 [42278.295951] [d1257ca0] [c002c770] mmput+0x3c/0x100 [42278.297218] [d1257cb0] [c0030a9c] exit_mm+0x10c/0x120 [42278.298516] [d1257cd0] [c0032574] do_exit+0x220/0x8c4 [42278.299788] [d1257d00] [c0010df4] kernel_bad_stack+0x0/0x4c [42278.301067] [d1257d20] [c00164f4] bad_page_fault+0xb8/0xcc [42278.302344] [d1257d30] [c0012d80] handle_page_fault+0x7c/0x80 [42278.303643] --- Exception: 300 at skb_dequeue+0x48/0xa0 [42278.304932] LR = ieee80211_if_reinit+0x1c0/0x284 [mac80211] [42278.306184] [d1257df0] [df3323a0] 0xdf3323a0 (unreliable) [42278.307459] [d1257e00] [e20d410c] ieee80211_if_reinit+0x1c0/0x284 [mac80211] [42278.308816] [d1257e30] [c033af58] register_netdevice+0x3f0/0x408 [42278.310112] [d1257e50] [e20d3e94] ieee80211_if_add+0x118/0x1d0 [mac80211] [42278.311455] [d1257e80] [e20d5a6c] ieee80211_add_iface+0x8c/0x9c [mac80211] [42278.312787] [d1257e90] [c0420608] _store_add_iface+0x70/0x9c [42278.314052] [d1257eb0] [c021a704] dev_attr_store+0x28/0x40 [42278.315289] [d1257ec0] [c00c09ac] sysfs_write_file+0x13c/0x1c4 [42278.316537] [d1257ef0] [c007c56c] vfs_write+0xc0/0x164 [42278.317761] [d1257f10] [c007cbc4] sys_write+0x4c/0x8c [42278.318996] [d1257f40] [c00128e4] ret_from_syscall+0x0/0x38 [42278.320243] --- Exception: c01 at 0xfed0c18 [42278.321410] LR = 0xfe7963c [42289.710017] b43-phy4 debug: Current TX power output: 14.25 dBm, Desired TX power output: 14.25 dBm [42299.370401] wmaster0: Discarded packet with nonexistent originating device [42305.370223] wmaster0: Discarded packet with nonexistent originating device [42312.370226] wmaster0: Discarded packet with nonexistent originating device - To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
