This error message seems to be completely gone after upgrading from default raring kernel (3.8.0.29.47) to the saucy one:
Linux amanah.dev 3.11.0-4-generic #9-Ubuntu SMP Mon Aug 26 15:21:06 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux although with the saucy kernel I got a strange dmesg : (where should I report this?) [ 65.004941] ------------[ cut here ]------------ [ 65.004970] WARNING: CPU: 0 PID: 0 at /build/buildd/linux-3.11.0/net/sched/sch_generic.c:260 dev_watchdog+0x26a/0x280() [ 65.004971] NETDEV WATCHDOG: usb0 (rndis_host): transmit queue 0 timed out [ 65.004972] Modules linked in: btrfs(F) raid6_pq(F) zlib_deflate(F) xor(F) ufs(F) qnx4 hfsplus hfs minix ntfs msdos(F) jfs xfs(F) libcrc32c(F) reiserfs ext2(F) kvm_intel(F) kvm(F) bnep rfcomm bluetooth arc4(F) snd_hda_codec_hdmi snd_hda_codec_via snd_hda_intel rt2800usb snd_hda_codec rt2x00usb rt2800lib rt2x00lib snd_hwdep(F) snd_pcm(F) mac80211 snd_page_alloc(F) gpio_ich ppdev(F) snd_seq_midi(F) snd_seq_midi_event(F) cfg80211 snd_rawmidi(F) crc_ccitt(F) snd_seq(F) rndis_host cdc_ether snd_seq_device(F) snd_timer(F) usbnet parport_pc(F) psmouse(F) mii(F) snd(F) serio_raw(F) soundcore(F) mei_me mei lpc_ich mac_hid lp(F) parport(F) hid_generic usbhid hid i915 atl1c video(F) i2c_algo_bit drm_kms_helper ahci(F) drm libahci(F) [ 65.005004] CPU: 0 PID: 0 Comm: swapper/0 Tainted: GF 3.11.0-4-generic #9-Ubuntu [ 65.005005] Hardware name: BIOSTAR Group H61MHB/H61MHB, BIOS 4.6.4 07/26/2012 [ 65.005006] 0000000000000009 ffff88023fa03d88 ffffffff816f0f71 ffff88023fa03dd0 [ 65.005008] ffff88023fa03dc0 ffffffff81061cfd ffff88022dba0000 0000000000000000 [ 65.005010] 0000000000000000 ffff88022d2ff880 ffff88022d2ff800 ffff88023fa03e20 [ 65.005012] Call Trace: [ 65.005014] <IRQ> [<ffffffff816f0f71>] dump_stack+0x45/0x56 [ 65.005025] [<ffffffff81061cfd>] warn_slowpath_common+0x7d/0xa0 [ 65.005027] [<ffffffff81061d6c>] warn_slowpath_fmt+0x4c/0x50 [ 65.005031] [<ffffffff81619f0a>] dev_watchdog+0x26a/0x280 [ 65.005033] [<ffffffff81619ca0>] ? dev_deactivate_queue.constprop.32+0x60/0x60 [ 65.005036] [<ffffffff8106e7e6>] call_timer_fn+0x36/0x110 [ 65.005038] [<ffffffff81619ca0>] ? dev_deactivate_queue.constprop.32+0x60/0x60 [ 65.005041] [<ffffffff8106f8bd>] run_timer_softirq+0x1fd/0x2b0 [ 65.005043] [<ffffffff810672d7>] __do_softirq+0xf7/0x240 [ 65.005049] [<ffffffff810675cd>] irq_exit+0xcd/0xe0 [ 65.005052] [<ffffffff817031c5>] smp_apic_timer_interrupt+0x45/0x60 [ 65.005055] [<ffffffff81701b5d>] apic_timer_interrupt+0x6d/0x80 [ 65.005056] <EOI> [<ffffffff8159cdd2>] ? cpuidle_enter_state+0x52/0xc0 [ 65.005062] [<ffffffff8159cf09>] cpuidle_idle_call+0xc9/0x210 [ 65.005066] [<ffffffff8101ba2e>] arch_cpu_idle+0xe/0x30 [ 65.005070] [<ffffffff810b56ee>] cpu_startup_entry+0xce/0x280 [ 65.005080] [<ffffffff816e0287>] rest_init+0x77/0x80 [ 65.005084] [<ffffffff81d28efc>] start_kernel+0x40f/0x41b [ 65.005086] [<ffffffff81d288f6>] ? repair_env_string+0x5c/0x5c [ 65.005089] [<ffffffff81d28120>] ? early_idt_handlers+0x120/0x120 [ 65.005091] [<ffffffff81d285de>] x86_64_start_reservations+0x2a/0x2c [ 65.005093] [<ffffffff81d286e8>] x86_64_start_kernel+0x108/0x117 [ 65.005094] ---[ end trace df416122c0c02d5a ]--- -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1080360 Title: [drm:__gen6_gt_force_wake_mt_get] *ERROR* Timed out waiting for forcewake old ack to clear. Status in The Linux Kernel: Fix Released Status in “linux” package in Ubuntu: Fix Released Bug description: I always get this error when I start up my Thinkpad Edge E530. This error was introduced with kernel 3.6. [drm:__gen6_gt_force_wake_mt_get] *ERROR* Timed out waiting for forcewake old ack to clear. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image-3.7.0-2-generic 3.7.0-2.8 ProcVersionSignature: Ubuntu 3.7.0-2.8-generic 3.7.0-rc5 Uname: Linux 3.7.0-2-generic x86_64 ApportVersion: 2.6.2-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: thomas 1723 F.... pulseaudio Date: Sun Nov 18 15:37:02 2012 HibernationDevice: RESUME=UUID=2ed6d9e9-3bcb-43c5-83a8-6e1160e90e8e InstallationDate: Installed on 2012-11-15 (2 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MachineType: LENOVO 3259HLG MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.7.0-2-generic root=UUID=3896c606-f33c-4988-b0b5-2bed433a4910 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.7.0-2-generic N/A linux-backports-modules-3.7.0-2-generic N/A linux-firmware 1.97 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/25/2012 dmi.bios.vendor: LENOVO dmi.bios.version: H0ET35WW (1.17 ) dmi.board.asset.tag: Not Available dmi.board.name: 3259HLG dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrH0ET35WW(1.17):bd07/25/2012:svnLENOVO:pn3259HLG:pvrThinkPadEdge:rvnLENOVO:rn3259HLG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3259HLG dmi.product.version: ThinkPad Edge dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1080360/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp