The freezes still occure from time to time on my computer, although my kernel is of 3.5 series. The reports in kern.log are similar to the one in my post #33 above, though they often are truncated at some early position after the words "Modules linked in...". The system hangs without any response and need to be rebooted. My system is KUbuntu 12.10 with all current updates. MB Asus M5A990FX Pro R2.0, CPU AMD FX 8150, GPU GeForce 210
I've stress-tested the system with prime95 several times, and it looked stable. Besides, it is not important whether the CPU is on load or idle: the freezes may occur in any case. So I believe it is not a hardware failure/instability. -- 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/917668 Title: system freeze ("hard LOCKUP"), warn_slowpath_common+0x7f in sock_aio_read Status in “linux” package in Ubuntu: Fix Released Bug description: I've had sporadic freezes on this system before since upgrading to Precise, but I haven't had the resources to try and ssh in prior to this, so I can't tell if this has occurred before. Now that I have an additional laptop I can hopefully catch this again if it occurs. I screwed up with the logs first, but then managed to salvage dmesg with a Trace from terminal buffer. I'll attach it separately below. I wasn't active on the desktop when the freeze happened (had my hands on the laptop). At least Chromium, Transmission and Google Music were running at the time. (I'm not familiar with Traces so I'll just pick something from the first line as title. Feel free to change it if needed.) [19199.961223] ------------[ cut here ]------------ [19199.961223] WARNING: at /build/buildd/linux-3.2.0/kernel/watchdog.c:241 watchdog_overflow_callback+0x9a/0xc0() [19199.961223] Hardware name: System Product Name [19199.961223] Watchdog detected hard LOCKUP on cpu 0 [19199.961223] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat sit tunnel4 bnep rfcomm binfmt_misc dm_crypt snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi usbhid snd_rawmidi snd_seq_midi_event btusb bluetooth hid snd_seq snd_timer snd_seq_device snd sp5100_tco soundcore snd_page_alloc i2c_piix4 edac_core shpchp dm_multipath ppdev asus_atk0110 edac_mce_amd k10temp mac_hid parport_pc lp parport usb_storage uas dm_raid45 xor dm_mirror dm_region_hash dm_log radeon ttm drm_kms_helper drm r8169 wmi i2c_algo_bit pata_atiixp [19199.961223] Pid: 1387, comm: Xorg Not tainted 3.2.0-9-generic #16-Ubuntu [19199.961223] Call Trace: [19199.961223] <NMI> [<ffffffff810651df>] warn_slowpath_common+0x7f/0xc0 [19199.961223] [<ffffffff810652d6>] warn_slowpath_fmt+0x46/0x50 [19199.961223] [<ffffffff8101adf9>] ? sched_clock+0x9/0x10 [19199.961223] [<ffffffff810d5fba>] watchdog_overflow_callback+0x9a/0xc0 [19199.961223] [<ffffffff81110736>] __perf_event_overflow+0x96/0x1e0 [19199.961223] [<ffffffff8110dcc1>] ? perf_event_update_userpage+0x11/0xc0 [19199.961223] [<ffffffff81110c84>] perf_event_overflow+0x14/0x20 [19199.961223] [<ffffffff81023fc7>] x86_pmu_handle_irq+0xd7/0x120 [19199.961223] [<ffffffff816559c1>] perf_event_nmi_handler+0x21/0x30 [19199.961223] [<ffffffff81655289>] default_do_nmi+0x69/0x220 [19199.961223] [<ffffffff816554c0>] do_nmi+0x80/0x90 [19199.961223] [<ffffffff816548b0>] nmi+0x20/0x30 [19199.961223] [<ffffffff8103ba95>] ? __ticket_spin_lock+0x25/0x30 [19199.961223] <<EOE>> [<ffffffff8103bb29>] default_spin_lock_flags+0x9/0x10 [19199.961223] [<ffffffff816540fe>] _raw_spin_lock_irqsave+0x2e/0x40 [19199.961223] [<ffffffff81088cc0>] remove_wait_queue+0x20/0x70 [19199.961223] [<ffffffff811890d8>] poll_freewait+0x98/0xe0 [19199.961223] [<ffffffff81189c17>] do_select+0x557/0x600 [19199.961223] [<ffffffff8105d99e>] ? try_to_wake_up+0x18e/0x200 [19199.961223] [<ffffffff81189120>] ? poll_freewait+0xe0/0xe0 [19199.961223] [<ffffffff81189210>] ? __pollwait+0xf0/0xf0 [19199.961223] [<ffffffff81189210>] ? __pollwait+0xf0/0xf0 [19199.961223] [<ffffffff81189210>] ? __pollwait+0xf0/0xf0 [19199.961223] [<ffffffff81189210>] ? __pollwait+0xf0/0xf0 [19199.961223] [<ffffffff81189210>] ? __pollwait+0xf0/0xf0 [19199.961223] [<ffffffff81189210>] ? __pollwait+0xf0/0xf0 [19199.961223] [<ffffffff81189210>] ? __pollwait+0xf0/0xf0 [19199.961223] [<ffffffff81189210>] ? __pollwait+0xf0/0xf0 [19199.961223] [<ffffffff81189210>] ? __pollwait+0xf0/0xf0 [19199.961223] [<ffffffff81189eac>] core_sys_select+0x1ec/0x370 [19199.961223] [<ffffffff815241ad>] ? sock_aio_read+0x2d/0x40 [19199.961223] [<ffffffff81175c02>] ? do_sync_read+0xd2/0x110 [19199.961223] [<ffffffff8130fc24>] ? timerqueue_del+0x34/0x90 [19199.961223] [<ffffffff8108c6a0>] ? __remove_hrtimer+0x60/0xc0 [19199.961223] [<ffffffff8108cc80>] ? hrtimer_try_to_cancel+0x50/0xc0 [19199.961223] [<ffffffff8101a6f9>] ? read_tsc+0x9/0x20 [19199.961223] [<ffffffff81092f3d>] ? ktime_get_ts+0xad/0xe0 [19199.961223] [<ffffffff8118a280>] sys_select+0xc0/0x100 [19199.961223] [<ffffffff8165c3c2>] system_call_fastpath+0x16/0x1b [19199.961223] ---[ end trace 104ea42b28f227b7 ]--- ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xserver-xorg-video-radeon 1:6.14.99~git20110811.g93fc084-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-9.16-generic 3.2.1 Uname: Linux 3.2.0-9-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 1.90-0ubuntu2 Architecture: amd64 CheckboxSubmission: 09ae689090491ca53449589269e4bfd8 CheckboxSystem: edda5d4f616ca792bf437989cb597002 CompizPlugins: [core,bailer,detection,composite,opengl,decor,resize,compiztoolbox,place,gnomecompat,regex,grid,mousepoll,snap,move,wall,imgpng,vpswitch,session,unitymtgrabhandles,animation,fade,workarounds,expo,scale,ezoom,unityshell] CompositorRunning: None Date: Tue Jan 17 16:09:07 2012 DistUpgraded: Log time: 2011-11-20 23:52:49.660633 DistroCodename: precise DistroVariant: ubuntu EcryptfsInUse: Yes ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu GraphicsCard: ATI Technologies Inc RS780 [Radeon HD 3200] [1002:9610] (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Device [1043:82f1] InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027) MachineType: System manufacturer System Product Name ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-9-generic root=UUID=bf0f4d7e-d08c-4aad-8143-b6e3b16049d6 ro quiet splash radeon.audio=1 vt.handoff=7 SourcePackage: xserver-xorg-video-ati UpgradeStatus: Upgraded to precise on 2012-01-17 (0 days ago) dmi.bios.date: 08/12/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2101 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: M4A78-EM dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2101:bd08/12/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A78-EM:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu8 version.ia32-libs: ia32-libs 20090808ubuntu33 version.libdrm2: libdrm2 2.4.30-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu4 version.xserver-xorg-core: xserver-xorg-core 2:1.10.4-1ubuntu6 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/917668/+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