libreport version: 2.0.8 abrt_version: 2.0.7 cmdline: BOOT_IMAGE=/vmlinuz-3.1.6-1.fc16.x86_64 root=/dev/mapper/vg_stefano-lv_root ro rd.md=0 rd.dm=0 KEYTABLE=us quiet rd.lvm.lv=vg_stefano/lv_swap rhgb rd.lvm.lv=vg_stefano/lv_root rd.luks=0 SYSFONT=latarcyrheb-sun16 LANG=en_US.UTF-8 kernel: 3.1.6-1.fc16.x86_64 reason: WARNING: at /builddir/build/BUILD/kernel-3.1.fc16/compat-wireless-3.2-rc6-3/net/mac80211/scan.c:315 __ieee80211_scan_completed+0x226/0x230 [mac80211]() time: Thu 05 Jan 2012 02:56:37 PM EST backtrace: :WARNING: at /builddir/build/BUILD/kernel-3.1.fc16/compat-wireless-3.2-rc6-3/net/mac80211/scan.c:315 __ieee80211_scan_completed+0x226/0x230 [mac80211]() :Hardware name: U31Jg :Modules linked in: fuse lockd rfcomm bnep ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter nf_conntrack_ipv4 nf_defrag_ipv4 ip6_tables xt_state nf_conntrack snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm btusb bluetooth asus_laptop r8169 mii arc4 intel_ips iTCO_wdt iTCO_vendor_support uvcvideo videodev media v4l2_compat_ioctl32 snd_timer sunrpc sparse_keymap rtl8192se rtlwifi mac80211 cfg80211 rfkill snd soundcore snd_page_alloc microcode joydev serio_raw input_polldev uinput binfmt_misc i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: wmi] :Pid: 51, comm: kworker/u:3 Not tainted 3.1.6-1.fc16.x86_64 #1 :Call Trace: : [<ffffffff8106b73f>] warn_slowpath_common+0x7f/0xc0 : [<ffffffff8106b79a>] warn_slowpath_null+0x1a/0x20 : [<ffffffffa01bf1a6>] __ieee80211_scan_completed+0x226/0x230 [mac80211] : [<ffffffffa01bf94b>] ieee80211_scan_work+0x6b/0x5a0 [mac80211] : [<ffffffff810126ba>] ? __switch_to+0xca/0x310 : [<ffffffffa01bf8e0>] ? ieee80211_scan_rx+0x1b0/0x1b0 [mac80211] : [<ffffffff810883dd>] process_one_work+0x11d/0x470 : [<ffffffff810897df>] worker_thread+0x15f/0x350 : [<ffffffff81089680>] ? manage_workers+0x230/0x230 : [<ffffffff8108de0c>] kthread+0x8c/0xa0 : [<ffffffff815dee34>] kernel_thread_helper+0x4/0x10 : [<ffffffff8108dd80>] ? kthread_worker_fn+0x190/0x190 : [<ffffffff815dee30>] ? gs_change+0x13/0x13 smolt_data: : : :General :================================= :UUID: ab885e71-60ea-46d3-becf-5c80d2f18f26 :OS: Fedora release 16 (Verne) :Default run level: Unknown :Language: en_US.utf8 :Platform: x86_64 :BogoMIPS: 5787.10 :CPU Vendor: GenuineIntel :CPU Model: Intel(R) Core(TM) i3 CPU M 380 @ 2.53GHz :CPU Stepping: 5 :CPU Family: 6 :CPU Model Num: 37 :Number of CPUs: 4 :CPU Speed: 2533 :System Memory: 3745 :System Swap: 5791 :Vendor: ASUSTeK Computer Inc. :System: U31Jg 1.0 :Form factor: Notebook :Kernel: 3.1.6-1.fc16.x86_64 :SELinux Enabled: 1 :SELinux Policy: targeted :SELinux Enforce: Enforcing :MythTV Remote: Unknown :MythTV Role: Unknown :MythTV Theme: Unknown :MythTV Plugin: :MythTV Tuner: -1 : : :Devices :================================= :(32902:11362:32902:32902) pci, None, HOST/PCI, Core Processor QuickPath Architecture Generic Non-core Registers :(32902:11521:32902:32902) pci, None, HOST/PCI, Core Processor QuickPath Architecture System Address Decoder :(32902:68:4163:4503) pci, agpgart-intel, HOST/PCI, Core Processor DRAM Controller :(32902:69:4163:4503) pci, pcieport, PCI/PCI, Core Processor PCI Express x16 Root Port :(32902:11536:32902:32902) pci, None, HOST/PCI, Core Processor QPI Link 0 :(32902:11537:32902:32902) pci, None, HOST/PCI, Core Processor QPI Physical 0 :(4332:33128:4163:5845) pci, r8169, ETHERNET, U6V/U31J laptop :(32902:11539:32902:32902) pci, None, HOST/PCI, Core Processor Reserved :(32902:15145:4163:4503) pci, ahci, STORAGE, 5 Series/3400 Series Chipset 4 port SATA AHCI Controller :(32902:15113:4163:4503) pci, None, PCI/ISA, Mobile 5 Series Chipset LPC Interface Controller :(32902:15154:4163:4503) pci, intel ips, NONE, 5 Series/3400 Series Chipset Thermal Subsystem :(32902:9288:4163:4503) pci, None, PCI/PCI, 82801 Mobile PCI Bridge :(32902:15164:4163:4503) pci, ehci_hcd, USB, 5 Series/3400 Series Chipset USB2 Enhanced Host Controller :(32902:15156:4163:4503) pci, ehci_hcd, USB, 5 Series/3400 Series Chipset USB2 Enhanced Host Controller :(32902:15204:4163:4503) pci, None, SIMPLE, 5 Series/3400 Series Chipset HECI Controller :(4332:33137:6715:4359) pci, rtl8192se, NETWORK, RTL8191SEvA Wireless LAN Controller :(32902:70:4163:5458) pci, i915, VIDEO, Core Processor Integrated Graphics Controller :(32902:15170:4163:4503) pci, pcieport, PCI/PCI, 5 Series/3400 Series Chipset PCI Express Root Port 1 :(32902:15172:4163:4503) pci, pcieport, PCI/PCI, 5 Series/3400 Series Chipset PCI Express Root Port 2 :(32902:15190:4163:4291) pci, snd_hda_intel, MULTIMEDIA, 5 Series/3400 Series Chipset High Definition Audio :(4318:3566:4163:5458) pci, None, VIDEO, GF108 [Geforce GT 415M] :(32902:15180:4163:4503) pci, pcieport, PCI/PCI, 5 Series/3400 Series Chipset PCI Express Root Port 6 :(32902:11538:32902:32902) pci, None, HOST/PCI, Core Processor Reserved : : :Filesystem Information :================================= :device mtpt type bsize frsize blocks bfree bavail file ffree favail :------------------------------------------------------------------- :/dev/mapper/vg_stefano-lv_root / ext4 4096 4096 12901535 10586765 9931405 3276800 3015324 3015324 :/dev/sda1 /boot ext4 1024 1024 495844 376269 350669 128016 127781 127781 :/dev/mapper/vg_stefano-lv_home /home ext4 4096 4096 105687680 104343685 98975058 26845184 26828588 26828588 :
This is the WARN_ON in question (inside __ieee80211_scan_completed): if (!was_hw_scan) { bool on_oper_chan2; ieee80211_configure_filter(local); drv_sw_scan_complete(local); on_oper_chan2 = ieee80211_cfg_on_oper_channel(local); /* We should always be on-channel at this point. */ WARN_ON(!on_oper_chan2); if (on_oper_chan2 && (on_oper_chan != on_oper_chan2)) enable_beacons = true; ieee80211_offchannel_return(local, enable_beacons, true); }
Uh, I forgot about that. In 3.2 there is no revert of off-channel optimization, which we applied in fedora: > http://pkgs.fedoraproject.org/gitweb/?p=kernel.git;a=commit;h=67de50b811ecec877c8ca1a9309f0567141b9269 And which should fix that warrning. We currently discuss how to do that revert in 3.2-stable, as there are differences between upstream commit and that patch...
Test kernels w/ Stanislaw's revert patch are building here: http://koji.fedoraproject.org/koji/taskinfo?taskID=3641961 Please try to recreate the issue with those kernels when they finish building, and post the results here...thanks!
An equivalent patch has just been applied to f16... *** This bug has been marked as a duplicate of bug 773271 ***