Hi Joseph, The problem present also in 3.2.0-22 kernel version :
There is no systematic scenario to reproduce the bug ! [ 136.174470] ------------[ cut here ]------------ [ 136.174516] WARNING: at /build/buildd/linux-3.2.0/drivers/net/wireless/brcm80211/brcmsmac/main.c:8234 brcms_c_wait_for_tx_completion+0x99/0xb0 [brcmsmac]() [ 136.174524] Hardware name: Latitude E5520 [ 136.174528] Modules linked in: btrfs zlib_deflate libcrc32c ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs reiserfs ext2 bnep rfcomm snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep joydev snd_pcm snd_seq_midi bcma arc4 snd_rawmidi snd_seq_midi_event snd_seq brcmsmac mac80211 uvcvideo i915 brcmutil btusb videodev drm_kms_helper drm snd_timer snd_seq_device psmouse mei(C) pcmcia cfg80211 snd crc8 cordic v4l2_compat_ioctl32 dell_laptop bluetooth i2c_algo_bit mac_hid dcdbas dell_wmi video sparse_keymap yenta_socket wmi serio_raw pcmcia_rsrc soundcore snd_page_alloc pcmcia_core ppdev parport_pc lp parport usbhid hid firewire_ohci firewire_core crc_itu_t sdhci_pci sdhci tg3 [ 136.174652] Pid: 58, comm: kworker/u:5 Tainted: G C 3.2.0-22-generic #35-Ubuntu [ 136.174657] Call Trace: [ 136.174675] [<ffffffff8106712f>] warn_slowpath_common+0x7f/0xc0 [ 136.174684] [<ffffffff8106718a>] warn_slowpath_null+0x1a/0x20 [ 136.174707] [<ffffffffa039db39>] brcms_c_wait_for_tx_completion+0x99/0xb0 [brcmsmac] [ 136.174724] [<ffffffffa038c1bb>] brcms_ops_flush+0x3b/0x60 [brcmsmac] [ 136.174757] [<ffffffffa02f5cdf>] ieee80211_scan_work+0x12f/0x3e0 [mac80211] [ 136.174769] [<ffffffff8105617a>] ? finish_task_switch+0x4a/0xf0 [ 136.174795] [<ffffffffa02f5bb0>] ? ieee80211_scan_rx+0x190/0x190 [mac80211] [ 136.174806] [<ffffffff81084e1a>] process_one_work+0x11a/0x480 [ 136.174815] [<ffffffff81085bc4>] worker_thread+0x164/0x370 [ 136.174824] [<ffffffff81085a60>] ? manage_workers.isra.29+0x130/0x130 [ 136.174832] [<ffffffff8108a41c>] kthread+0x8c/0xa0 [ 136.174843] [<ffffffff81666bf4>] kernel_thread_helper+0x4/0x10 [ 136.174851] [<ffffffff8108a390>] ? flush_kthread_worker+0xa0/0xa0 [ 136.174859] [<ffffffff81666bf0>] ? gs_change+0x13/0x13 [ 136.174864] ---[ end trace 54f0705eadd8b0b0 ]--- -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/981018 Title: WARNING: at /build/buildd/linux-3.2.0/net/mac80211/rx.c:2985 ieee80211_rx+0x14b/0x1b0 [mac80211]() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/981018/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
