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#1 2013-12-04 17:43:21

gturtle
Member
Registered: 2012-04-12
Posts: 23

BUG: soft lockup - CPU#0 stuck for 22s!

Hi guys,

Need some help on how to get more information from following problem:

Since kernel 3.12 my laptop always crashed by "BUG: soft lockup - CPU#0 stuck for 22s! [kworker/0:1:53]". Machine works in general but very slooowly.
I'd like to identify why it happens. Could you please advise how to get more logs, info?

P.S. Downgrading to 3.11 helps

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#2 2013-12-04 17:48:56

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,797

Re: BUG: soft lockup - CPU#0 stuck for 22s!

You told us exactly zero about your system.  You did not even tell what CPU it is.
Or how many cores you have.
Or how much memory you have,
whether is is 32 or 64 bit,
or, what chipset you are using,
Maybe what peripherals exist?
Which modules are loaded?
Or even whether this is a physical or virtual machine.

look at the output of journalctl, dmesg, lspci, lsusb, lsmod, and the link in my signature.

Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#3 2013-12-05 05:41:21

gturtle
Member
Registered: 2012-04-12
Posts: 23

Re: BUG: soft lockup - CPU#0 stuck for 22s!

ewaller wrote:

You told us exactly zero about your system.  You did not even tell what CPU it is.
Or how many cores you have.
Or how much memory you have,
whether is is 32 or 64 bit,
or, what chipset you are using,
Maybe what peripherals exist?
Which modules are loaded?
Or even whether this is a physical or virtual machine.

look at the output of journalctl, dmesg, lspci, lsusb, lsmod, and the link in my signature.

You're right. I just wanted to find a way to gather more information about such problem because it's not rare.

So i have problems on my physical laptop

# lspci -v

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
        Subsystem: Hewlett-Packard Company Device 1689
        Flags: bus master, fast devsel, latency 0
        Capabilities: [e0] Vendor Specific Information: Len=0c <?>

00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=01, subordinate=06, sec-latency=0
        I/O behind bridge: 00004000-00004fff
        Memory behind bridge: c2800000-c37fffff
        Prefetchable memory behind bridge: 00000000a0000000-00000000afffffff
        Capabilities: [88] Subsystem: Hewlett-Packard Company Device 1689
        Capabilities: [80] Power Management version 3
        Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [a0] Express Root Port (Slot+), MSI 00
        Capabilities: [100] Virtual Channel
        Capabilities: [140] Root Complex Link
        Kernel driver in use: pcieport
        Kernel modules: shpchp

00:01.1 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=07, subordinate=07, sec-latency=0
        Capabilities: [88] Subsystem: Hewlett-Packard Company Device 1689
        Capabilities: [80] Power Management version 3
        Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [a0] Express Root Port (Slot+), MSI 00
        Capabilities: [100] Virtual Channel
        Capabilities: [140] Root Complex Link
        Kernel driver in use: pcieport
        Kernel modules: shpchp

00:01.2 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=08, subordinate=08, sec-latency=0
        Capabilities: [88] Subsystem: Hewlett-Packard Company Device 1689
        Capabilities: [80] Power Management version 3
        Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [a0] Express Root Port (Slot+), MSI 00
        Capabilities: [100] Virtual Channel
        Capabilities: [140] Root Complex Link
        Kernel driver in use: pcieport
        Kernel modules: shpchp

00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
        Subsystem: Hewlett-Packard Company Device 1689
        Flags: bus master, fast devsel, latency 0, IRQ 65
        Memory at c0000000 (64-bit, non-prefetchable) [size=4M]
        Memory at b0000000 (64-bit, prefetchable) [size=256M]
        I/O ports at 5000 [size=64]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [d0] Power Management version 2
        Capabilities: [a4] PCI Advanced Features
        Kernel driver in use: i915
        Kernel modules: i915

00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
        Subsystem: Hewlett-Packard Company Device 1689
        Flags: bus master, fast devsel, latency 0, IRQ 60
        Memory at c3804000 (64-bit, non-prefetchable) [size=16]
        Capabilities: [50] Power Management version 3
        Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Kernel driver in use: mei_me
        Kernel modules: mei_me

00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05) (prog-if 20 [EHCI])
        Subsystem: Hewlett-Packard Company Device 1689
        Flags: bus master, medium devsel, latency 0, IRQ 16
        Memory at c3809000 (32-bit, non-prefetchable) [size=1K]
        Capabilities: [50] Power Management version 2
        Capabilities: [58] Debug port: BAR=1 offset=00a0
        Capabilities: [98] PCI Advanced Features
        Kernel driver in use: ehci-pci
        Kernel modules: ehci_pci

00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
        Subsystem: Hewlett-Packard Company Device 1689
        Flags: bus master, fast devsel, latency 0, IRQ 61
        Memory at c3800000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [50] Power Management version 2
        Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
        Capabilities: [100] Virtual Channel
        Capabilities: [130] Root Complex Link
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel

00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=09, subordinate=09, sec-latency=0
        Memory behind bridge: c2700000-c27fffff
        Capabilities: [40] Express Root Port (Slot+), MSI 00
        Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
        Capabilities: [90] Subsystem: Hewlett-Packard Company Device 1689
        Capabilities: [a0] Power Management version 2
        Kernel driver in use: pcieport
        Kernel modules: shpchp

00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b5) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=0a, subordinate=0f, sec-latency=0
        I/O behind bridge: 00003000-00003fff
        Memory behind bridge: c1700000-c26fffff
        Prefetchable memory behind bridge: 00000000c0400000-00000000c13fffff
        Capabilities: [40] Express Root Port (Slot+), MSI 00
        Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
        Capabilities: [90] Subsystem: Hewlett-Packard Company Device 1689
        Capabilities: [a0] Power Management version 2
        Kernel driver in use: pcieport
        Kernel modules: shpchp

00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b5) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=10, subordinate=10, sec-latency=0
        I/O behind bridge: 00002000-00002fff
        Memory behind bridge: c1600000-c16fffff
        Capabilities: [40] Express Root Port (Slot+), MSI 00
        Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
        Capabilities: [90] Subsystem: Hewlett-Packard Company Device 1689
        Capabilities: [a0] Power Management version 2
        Kernel driver in use: pcieport
        Kernel modules: shpchp

00:1c.6 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 (rev b5) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=11, subordinate=11, sec-latency=0
        Memory behind bridge: c1500000-c15fffff
        Capabilities: [40] Express Root Port (Slot+), MSI 00
        Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
        Capabilities: [90] Subsystem: Hewlett-Packard Company Device 1689
        Capabilities: [a0] Power Management version 2
        Kernel driver in use: pcieport
        Kernel modules: shpchp

00:1c.7 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 8 (rev b5) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=12, subordinate=12, sec-latency=0
        Memory behind bridge: c1400000-c14fffff
        Capabilities: [40] Express Root Port (Slot+), MSI 00
        Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
        Capabilities: [90] Subsystem: Hewlett-Packard Company Device 1689
        Capabilities: [a0] Power Management version 2
        Kernel driver in use: pcieport
        Kernel modules: shpchp

00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05) (prog-if 20 [EHCI])
        Subsystem: Hewlett-Packard Company Device 1689
        Flags: bus master, medium devsel, latency 0, IRQ 20
        Memory at c3808000 (32-bit, non-prefetchable) [size=1K]
        Capabilities: [50] Power Management version 2
        Capabilities: [58] Debug port: BAR=1 offset=00a0
        Capabilities: [98] PCI Advanced Features
        Kernel driver in use: ehci-pci
        Kernel modules: ehci_pci

00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 05)
        Subsystem: Hewlett-Packard Company Device 1689
        Flags: bus master, medium devsel, latency 0
        Capabilities: [e0] Vendor Specific Information: Len=0c <?>
        Kernel driver in use: lpc_ich
        Kernel modules: lpc_ich

00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05) (prog-if 01 [AHCI 1.0])
        Subsystem: Hewlett-Packard Company Device 1689
        Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 51
        I/O ports at 5088 [size=8]
        I/O ports at 5094 [size=4]
        I/O ports at 5080 [size=8]
        I/O ports at 5090 [size=4]
        I/O ports at 5060 [size=32]
        Memory at c3807000 (32-bit, non-prefetchable) [size=2K]
        Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [70] Power Management version 3
        Capabilities: [a8] SATA HBA v1.0
        Capabilities: [b0] PCI Advanced Features
        Kernel driver in use: ahci
        Kernel modules: ahci

00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
        Subsystem: Hewlett-Packard Company Device 1689
        Flags: medium devsel, IRQ 19
        Memory at c3805000 (64-bit, non-prefetchable) [size=256]
        I/O ports at 5040 [size=32]
        Kernel modules: i2c_i801

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Whistler [Radeon HD 6730M/6770M/7690M XT] (rev ff) (prog-if ff)
        !!! Unknown header type 7f
        Kernel driver in use: radeon
        Kernel modules: radeon

01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Turks/Whistler HDMI Audio [Radeon HD 6000 Series] (rev ff) (prog-if ff)
        !!! Unknown header type 7f
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel

09:00.0 Network controller: Intel Corporation Centrino Advanced-N 6230 [Rainbow Peak] (rev 34)
        Subsystem: Intel Corporation Centrino Advanced-N 6230 AGN
        Flags: bus master, fast devsel, latency 0, IRQ 63
        Memory at c2700000 (64-bit, non-prefetchable) [size=8K]
        Capabilities: [c8] Power Management version 3
        Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [e0] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Device Serial Number 88-53-2e-ff-ff-70-ae-e5
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi

0a:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01)
        Subsystem: Hewlett-Packard Company Device 168a
        Flags: bus master, fast devsel, latency 0, IRQ 62
        Memory at c1700000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: [40] Power Management version 3
        Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [70] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Device Serial Number 00-00-00-01-00-4c-e0-00
        Kernel driver in use: rtsx_pci
        Kernel modules: rtsx_pci

10:00.0 Ethernet controller: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet (rev c0)
        Subsystem: Hewlett-Packard Company Device 1689
        Flags: bus master, fast devsel, latency 0, IRQ 66
        Memory at c1600000 (64-bit, non-prefetchable) [size=256K]
        I/O ports at 2000 [size=128]
        Capabilities: [40] Power Management version 3
        Capabilities: [48] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [58] Express Endpoint, MSI 00
        Capabilities: [6c] Vital Product Data
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [180] Device Serial Number ff-29-7a-6d-e4-11-5b-ff
        Kernel driver in use: atl1c
        Kernel modules: atl1c

11:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) (prog-if 30 [XHCI])
        Subsystem: Hewlett-Packard Company Device 1689
        Flags: bus master, fast devsel, latency 0, IRQ 18
        Memory at c1500000 (64-bit, non-prefetchable) [size=8K]
        Capabilities: [50] Power Management version 3
        Capabilities: [70] MSI: Enable- Count=1/8 Maskable- 64bit+
        Capabilities: [90] MSI-X: Enable+ Count=8 Masked-
        Capabilities: [a0] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Device Serial Number ff-ff-ff-ff-ff-ff-ff-ff
        Capabilities: [150] Latency Tolerance Reporting
        Kernel driver in use: xhci_hcd
        Kernel modules: xhci_hcd

12:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04) (prog-if 30 [XHCI])
        Subsystem: Hewlett-Packard Company Device 1689
        Flags: bus master, fast devsel, latency 0, IRQ 19
        Memory at c1400000 (64-bit, non-prefetchable) [size=8K]
        Capabilities: [50] Power Management version 3
        Capabilities: [70] MSI: Enable- Count=1/8 Maskable- 64bit+
        Capabilities: [90] MSI-X: Enable+ Count=8 Masked-
        Capabilities: [a0] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Device Serial Number ff-ff-ff-ff-ff-ff-ff-ff
        Capabilities: [150] Latency Tolerance Reporting
        Kernel driver in use: xhci_hcd
        Kernel modules: xhci_hcd

# journalctl | grep lockup

Dec 04 20:20:46 green kernel: BUG: soft lockup - CPU#0 stuck for 22s! [kworker/0:1:53]
Dec 04 20:20:46 green kernel: Modules linked in: radeon ttm fuse uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev media hp_wmi sparse_keymap joydev x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_p
clmul crct10dif_common crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_idt microcode btusb bluetooth evdev arc4 psmouse serio
_raw iwldvm pcspkr mac80211 i2c_i801 rtsx_pci_ms iwlwifi memstick atl1c cfg80211 rfkill fan thermal wmi battery i915 snd_hda_intel snd_hda_codec intel_agp snd_hwdep intel_gtt snd_pcm drm_kms_helper snd_page_alloc snd_timer drm snd hp_accel
 lpc_ich lis3lv02d soundcore mei_me i2c_algo_bit ac video input_polldev i2c_core shpchp button mei processor
Dec 04 20:20:46 green kernel:  ext4 crc16 mbcache jbd2 hid_logitech_dj usbhid hid sr_mod cdrom sd_mod rtsx_pci_sdmmc mmc_core ahci crc32c_intel libahci libata ehci_pci scsi_mod ehci_hcd xhci_hcd rtsx_pci usbcore usb_common
Dec 04 20:20:46 green kernel: CPU: 0 PID: 53 Comm: kworker/0:1 Not tainted 3.12.2-1-ARCH #1
Dec 04 20:20:46 green kernel: Hardware name: Hewlett-Packard HP ENVY 17 Notebook PC/1689, BIOS F.06 03/05/2012
Dec 04 20:20:46 green kernel: Workqueue: kacpi_hotplug hotplug_event_work
Dec 04 20:20:46 green kernel: task: ffff880253d49160 ti: ffff880253efa000 task.ti: ffff880253efa000
Dec 04 20:20:46 green kernel: RIP: 0010:[<ffffffff814f439e>]  [<ffffffff814f439e>] _raw_spin_lock+0x2e/0x40
Dec 04 20:20:46 green kernel: RSP: 0018:ffff880253efbaf0  EFLAGS: 00000213
Dec 04 20:20:46 green kernel: RAX: 0000000000000010 RBX: 000000000941c940 RCX: ffff88024f943088
Dec 04 20:20:46 green kernel: RDX: 00000000000000c6 RSI: 0000000000000206 RDI: ffff88025020c618
Dec 04 20:20:46 green kernel: RBP: ffff880253efbaf0 R08: 0000000000000000 R09: 0000000000000001
Dec 04 20:20:46 green kernel: R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff8107cb56
Dec 04 20:20:46 green kernel: R13: ffff880253efbfd8 R14: ffff880253efbfd8 R15: ffff880253efbfd8
Dec 04 20:20:46 green kernel: FS:  0000000000000000(0000) GS:ffff88025fa00000(0000) knlGS:0000000000000000
Dec 04 20:20:46 green kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec 04 20:20:46 green kernel: CR2: 00007f2b52d1e41d CR3: 000000000180d000 CR4: 00000000000407f0
Dec 04 20:20:46 green kernel: Stack:
Dec 04 20:20:46 green kernel:  ffff880253efbb10 ffffffffa06080cf ffff88024f943000 0000000000002fff
Dec 04 20:20:46 green kernel:  ffff880253efbb38 ffffffffa0640ac0 ffff88003710cdc0 0000000000002fff
Dec 04 20:20:46 green kernel:  ffff88024f9cbc00 ffff880253efbb48 ffffffffa0640cf2 ffff880253efbb60
Dec 04 20:20:46 green kernel: Call Trace:
Dec 04 20:20:46 green kernel:  [<ffffffffa06080cf>] snd_hda_unlock_devices+0x1f/0x40 [snd_hda_codec]
Dec 04 20:20:46 green kernel:  [<ffffffffa0640ac0>] azx_free+0xb0/0x2d0 [snd_hda_intel]
Dec 04 20:20:46 green kernel:  [<ffffffffa0640cf2>] azx_dev_free+0x12/0x20 [snd_hda_intel]
Dec 04 20:20:46 green kernel:  [<ffffffffa0549dce>] snd_device_free+0x7e/0xe0 [snd]
Dec 04 20:20:46 green kernel:  [<ffffffffa054a011>] snd_device_free_all+0x61/0x90 [snd]
Dec 04 20:20:46 green kernel:  [<ffffffffa0543f4c>] snd_card_do_free+0x4c/0xd0 [snd]
Dec 04 20:20:46 green kernel:  [<ffffffffa05444d4>] snd_card_free+0x94/0xa0 [snd]
Dec 04 20:20:46 green kernel:  [<ffffffff8139624d>] ? __pm_runtime_resume+0x4d/0x60
Dec 04 20:20:46 green kernel:  [<ffffffffa063ea32>] azx_remove+0x22/0x30 [snd_hda_intel]
Dec 04 20:20:46 green kernel:  [<ffffffff812c40bb>] pci_device_remove+0x3b/0xb0
Dec 04 20:20:46 green kernel:  [<ffffffff8138937f>] __device_release_driver+0x7f/0xf0
Dec 04 20:20:46 green kernel:  [<ffffffff81389413>] device_release_driver+0x23/0x30
Dec 04 20:20:46 green kernel:  [<ffffffff81388ba8>] bus_remove_device+0x108/0x180
Dec 04 20:20:46 green kernel:  [<ffffffff81385545>] device_del+0x135/0x1d0
Dec 04 20:20:46 green kernel:  [<ffffffff812be774>] pci_stop_bus_device+0x94/0xa0
Dec 04 20:20:46 green kernel:  [<ffffffff812be882>] pci_stop_and_remove_bus_device+0x12/0x20
Dec 04 20:20:46 green kernel:  [<ffffffff812db1d7>] trim_stale_devices+0x67/0xf0
Dec 04 20:20:46 green kernel:  [<ffffffff812dbee6>] acpiphp_check_bridge+0x86/0xd0
Dec 04 20:20:46 green kernel:  [<ffffffff812dc4a2>] hotplug_event+0x102/0x250
Dec 04 20:20:46 green kernel:  [<ffffffff812dc617>] hotplug_event_work+0x27/0x70
Dec 04 20:20:46 green kernel:  [<ffffffff8107daf7>] process_one_work+0x167/0x450
Dec 04 20:20:46 green kernel:  [<ffffffff8107e501>] worker_thread+0x121/0x3a0
Dec 04 20:20:46 green kernel:  [<ffffffff8107e3e0>] ? manage_workers.isra.23+0x2b0/0x2b0
Dec 04 20:20:46 green kernel:  [<ffffffff81084e90>] kthread+0xc0/0xd0
Dec 04 20:20:46 green kernel:  [<ffffffff81084dd0>] ? kthread_create_on_node+0x120/0x120
Dec 04 20:20:46 green kernel:  [<ffffffff814fc33c>] ret_from_fork+0x7c/0xb0
Dec 04 20:20:46 green kernel:  [<ffffffff81084dd0>] ? kthread_create_on_node+0x120/0x120
Dec 04 20:20:46 green kernel: Code: 66 90 55 65 48 8b 04 25 70 c7 00 00 48 89 e5 83 80 44 e0 ff ff 01 b8 00 01 00 00 f0 66 0f c1 07 0f b6 d4 38 c2 75 04 5d c3 f3 90 <0f> b6 07 38 d0 75 f7 5d c3 66 0f 1f 84 00 00 00 00 00 66 66 66

I also have some modules blacklisted:

#cat /etc/modprobe.d/blacklist.conf

blacklist       snd_usb_audio
blacklist       radeon

According to call stack i see that snd_hda modules may cause the problem. Is it correct?

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#4 2013-12-05 08:22:55

mich41
Member
Registered: 2012-06-22
Posts: 796

Re: BUG: soft lockup - CPU#0 stuck for 22s!

It looks as if the hardware/firmware notified the kernel that the soundcard is going to be removed and snd_hda_intel went crazy because these soundcards aren't normally hotpluggable and support for hot removing them is apparently broken.

You ARE sure that this does NOT happen after disconnection of some hardware (docking station, possibly), right?

As a workaround, you can try blacklisting pci_hotplug (if it's shipped as a module in the stock Arch kernel).

Last edited by mich41 (2013-12-05 09:14:17)

Offline

#5 2013-12-06 05:21:49

gturtle
Member
Registered: 2012-04-12
Posts: 23

Re: BUG: soft lockup - CPU#0 stuck for 22s!

mich41 wrote:

It looks as if the hardware/firmware notified the kernel that the soundcard is going to be removed and snd_hda_intel went crazy because these soundcards aren't normally hotpluggable and support for hot removing them is apparently broken.

You ARE sure that this does NOT happen after disconnection of some hardware (docking station, possibly), right?

As a workaround, you can try blacklisting pci_hotplug (if it's shipped as a module in the stock Arch kernel).

No disconnection of hardware, just plain usual laptop booting process.
Thank you, i'll try your workaround.

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#6 2013-12-10 20:54:11

stauntonel
Member
Registered: 2012-06-09
Posts: 2

Re: BUG: soft lockup - CPU#0 stuck for 22s!

Looks like a kernel issue. I downgraded my kernel and the problem is solved.

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#7 2013-12-13 22:18:57

alexmat
Member
Registered: 2004-12-31
Posts: 100

Re: BUG: soft lockup - CPU#0 stuck for 22s!

Looks like it is related to vgaswitcheroo: https://bugs.freedesktop.org/show_bug.cgi?id=70895

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