I tried the latest upstream kernel and this bug even shows up there. Here is the relevant crash info:
[ 82.737559] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028 [ 82.737584] IP: [<ffffffffa02cb753>] rt2800pci_init_queues+0x23/0x260 [rt2800pci] [ 82.737593] PGD 3f7728067 PUD 3f77a6067 PMD 0 [ 82.737600] Oops: 0000 [#1] SMP [ 82.737605] Modules linked in: rt2800pci(-) rt2800lib rt2x00pci rt2x00mmio rt2x00lib mac80211 cfg80211 eeprom_93cx6 crc_ccitt snd_hda_codec_hdmi parport_pc ppdev x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd joydev arc4 hid_generic rfcomm snd_hda_codec_realtek bnep psmouse snd_seq_midi nouveau snd_seq_midi_event microcode serio_raw snd_rawmidi btusb snd_hda_intel snd_hda_codec bluetooth lpc_ich usbhid snd_hwdep hid snd_seq mxm_wmi snd_pcm ttm drm_kms_helper snd_seq_device snd_page_alloc drm snd_timer snd i2c_algo_bit soundcore wmi video mei_me mei mac_hid lp parport e1000e firewire_ohci firewire_core ahci ptp crc_itu_t libahci pps_core [last unloaded: cfg80211] [ 82.737720] CPU: 0 PID: 1318 Comm: wpa_supplicant Not tainted 3.12.0-031200rc5-generic #201310131952 [ 82.737725] Hardware name: /DZ77GA-70K, BIOS GAZ7711H.86A.0059.2012.1106.1053 11/06/2012 [ 82.737730] task: ffff8803f5c817a0 ti: ffff8803f5d94000 task.ti: ffff8803f5d94000 [ 82.737735] RIP: 0010:[<ffffffffa02cb753>] [<ffffffffa02cb753>] rt2800pci_init_queues+0x23/0x260 [rt2800pci] [ 82.737742] RSP: 0018:ffff8803f5d95ba8 EFLAGS: 00010292 [ 82.737746] RAX: 0000000000000000 RBX: ffff8803f35e57c0 RCX: 0000000000000000 [ 82.737750] RDX: ffffc90009d40000 RSI: ffff88041ec0e458 RDI: ffff8803f35e57c0 [ 82.737754] RBP: ffff8803f5d95bb8 R08: 000000000000000a R09: 0000000000000000 [ 82.737758] R10: 0000000000000496 R11: 0000000000000495 R12: 0000000000000004 [ 82.737762] R13: ffff8803f35e57c0 R14: 0000000000000000 R15: 0000000000000001 [ 82.737767] FS: 00007f87ba342740(0000) GS:ffff88041ec00000(0000) knlGS:0000000000000000 [ 82.737771] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.737775] CR2: 0000000000000028 CR3: 00000003f5cfa000 CR4: 00000000001407f0 [ 82.737779] Stack: [ 82.737782] ffff8803f35e57c0 ffff8803f35e57c0 ffff8803f5d95be8 ffffffffa02cba7e [ 82.737790] ffff8803f5d95be8 ffffffffa021d3b8 0000000000000040 00000000fffffdf4 [ 82.737798] ffff8803f5d95c18 ffffffffa02cbfc5 ffff8803f35e57c0 ffff8803f35e57c0 [ 82.737806] Call Trace: [ 82.737811] [<ffffffffa02cba7e>] rt2800pci_enable_radio+0x1e/0xc0 [rt2800pci] [ 82.737818] [<ffffffffa021d3b8>] ? rt2x00queue_reset+0x58/0x70 [rt2x00lib] [ 82.737824] [<ffffffffa02cbfc5>] rt2800pci_set_device_state+0xa5/0x120 [rt2800pci] [ 82.737831] [<ffffffffa021b510>] rt2x00lib_enable_radio+0x50/0xe0 [rt2x00lib] [ 82.737843] [<ffffffffa021bb5a>] rt2x00lib_start+0x6a/0xc0 [rt2x00lib] [ 82.737849] [<ffffffff816a1fcf>] ? inetdev_event+0x2f/0x310 [ 82.737855] [<ffffffffa021c855>] rt2x00mac_start+0x25/0x30 [rt2x00lib] [ 82.737870] [<ffffffffa06ab8f4>] ieee80211_do_open+0x304/0xe60 [mac80211] [ 82.737876] [<ffffffff8174b28d>] ? notifier_call_chain+0x4d/0x70 [ 82.737883] [<ffffffff81091d56>] ? raw_notifier_call_chain+0x16/0x20 [ 82.737893] [<ffffffffa06ac4c1>] ieee80211_open+0x71/0x80 [mac80211] [ 82.737900] [<ffffffff816383b7>] __dev_open+0xb7/0x130 [ 82.737905] [<ffffffff81638681>] __dev_change_flags+0xa1/0x180 [ 82.737910] [<ffffffff81638828>] dev_change_flags+0x28/0x70 [ 82.737915] [<ffffffff816a2934>] devinet_ioctl+0x594/0x620 [ 82.737921] [<ffffffff8164a103>] ? dev_ioctl+0x1c3/0x330 [ 82.737926] [<ffffffff816a3285>] inet_ioctl+0x75/0x90 [ 82.737931] [<ffffffff8161ad80>] sock_do_ioctl+0x30/0x70 [ 82.737948] [<ffffffff8161b75d>] sock_ioctl+0x6d/0x2c0 [ 82.737953] [<ffffffff811cef9a>] do_vfs_ioctl+0x7a/0x2e0 [ 82.737959] [<ffffffff811bcd64>] ? vfs_read+0xb4/0x180 [ 82.737963] [<ffffffff811cf291>] SyS_ioctl+0x91/0xb0 [ 82.737968] [<ffffffff811bcfe2>] ? SyS_read+0x52/0xa0 [ 82.737974] [<ffffffff8174fc6d>] system_call_fastpath+0x1a/0x1f [ 82.737977] Code: 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb 48 83 ec 08 48 8b 87 20 09 00 00 48 8b 97 28 05 00 00 48 8b 40 08 <48> 8b 40 28 8b 40 08 89 82 30 02 00 00 48 8b 87 20 09 00 00 48 [ 82.738049] RIP [<ffffffffa02cb753>] rt2800pci_init_queues+0x23/0x260 [rt2800pci] [ 82.738056] RSP <ffff8803f5d95ba8> [ 82.738059] CR2: 0000000000000028 [ 82.739666] ---[ end trace 6130c5415f18a698 ]--- ** Summary changed: - [RT3090] modprobe -r rt2800pci crash in kernel + [RT3090] modprobe -r rt2800pci crash in kernel (kernel-bug-exists-upstream) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1241726 Title: [RT3090] modprobe -r rt2800pci crash in kernel (kernel-bug-exists- upstream) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1241726/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs