Re: host stalls when qemu-system-aarch64 with kvm and pflash
On Thu, Mar 30, 2017 at 9:47 AM, Laszlo Ersek <ler...@redhat.com> wrote: > On 03/29/17 20:56, Christoffer Dall wrote: >> On Tue, Mar 28, 2017 at 01:24:15PM -0700, Radha Mohan wrote: >>> On Tue, Mar 28, 2017 at 1:16 PM, Christoffer Dall <cd...@linaro.org> wrote: >>>> Hi Radha, >>>> >>>> On Tue, Mar 28, 2017 at 12:58:24PM -0700, Radha Mohan wrote: >>>>> Hi, >>>>> I am seeing an issue with qemu-system-aarch64 when using pflash >>>>> (booting kernel via UEFI bios). >>>>> >>>>> Host kernel: 4.11.0-rc3-next-20170323 >>>>> Qemu version: v2.9.0-rc1 >>>>> >>>>> Command used: >>>>> ./aarch64-softmmu/qemu-system-aarch64 -cpu host -enable-kvm -M >>>>> virt,gic_version=3 -nographic -smp 1 -m 2048 -drive >>>>> if=none,id=hd0,file=/root/zesty-server-cloudimg-arm64.img,id=0 -device >>>>> virtio-blk-device,drive=hd0 -pflash /root/flash0.img -pflash >>>>> /root/flash1.img >>>>> >>>>> >>>>> As soon as the guest kernel boots the host starts to stall and prints >>>>> the below messages. And the system never recovers. I can neither >>>>> poweroff the guest nor the host. So I have resort to external power >>>>> reset of the host. >>>>> >>>>> == >>>>> [ 116.199077] NMI watchdog: BUG: soft lockup - CPU#25 stuck for 23s! >>>>> [kworker/25:1:454] >>>>> [ 116.206901] Modules linked in: binfmt_misc nls_iso8859_1 aes_ce_blk >>>>> shpchp crypto_simd gpio_keys cryptd aes_ce_cipher ghash_ce sha2_ce >>>>> sha1_ce uio_pdrv_genirq uio autofs4 btrfs raid10 rai >>>>> d456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor >>>>> raid6_pq libcrc32c raid1 raid0 multipath linear ast i2c_algo_bit ttm >>>>> drm_kms_helper syscopyarea sysfillrect sysimgblt fb_s >>>>> ys_fops drm nicvf ahci nicpf libahci thunder_bgx thunder_xcv >>>>> mdio_thunder mdio_cavium >>>>> >>>>> [ 116.206995] CPU: 25 PID: 454 Comm: kworker/25:1 Not tainted >>>>> 4.11.0-rc3-next-20170323 #1 >>>>> [ 116.206997] Hardware name: www.cavium.com crb-1s/crb-1s, BIOS 0.3 Feb >>>>> 23 2017 >>>>> [ 116.207010] Workqueue: events netstamp_clear >>>>> [ 116.207015] task: 801f906b5400 task.stack: 801f901a4000 >>>>> [ 116.207020] PC is at smp_call_function_many+0x284/0x2e8 >>>>> [ 116.207023] LR is at smp_call_function_many+0x244/0x2e8 >>>>> [ 116.207026] pc : [] lr : [] >>>>> pstate: 8145 >>>>> [ 116.207028] sp : 801f901a7be0 >>>>> [ 116.207030] x29: 801f901a7be0 x28: 09139000 >>>>> [ 116.207036] x27: 09139434 x26: 0080 >>>>> [ 116.207041] x25: x24: 081565d0 >>>>> [ 116.207047] x23: 0001 x22: 08e11e00 >>>>> [ 116.207052] x21: 801f6d5cff00 x20: 801f6d5cff08 >>>>> [ 116.207057] x19: 09138e38 x18: 0a03 >>>>> [ 116.207063] x17: b77c9028 x16: 082e81d8 >>>>> [ 116.207068] x15: 3d0d6dd44d08 x14: 0036312196549b4a >>>>> [ 116.207073] x13: 58dabe4c x12: 0018 >>>>> [ 116.207079] x11: 366e2f04 x10: 09f0 >>>>> [ 116.207084] x9 : 801f901a7d30 x8 : 0002 >>>>> [ 116.207089] x7 : x6 : >>>>> [ 116.207095] x5 : x4 : 0020 >>>>> [ 116.207100] x3 : 0020 x2 : >>>>> [ 116.207105] x1 : 801f6d682578 x0 : 0003 >>>>> >>>>> [ 150.443116] INFO: rcu_sched self-detected stall on CPU >>>>> [ 150.448261] 25-...: (14997 ticks this GP) >>>>> idle=47a/141/0 softirq=349/349 fqs=7495 >>>>> [ 150.451115] INFO: rcu_sched detected stalls on CPUs/tasks: >>>>> [ 150.451123] 25-...: (14997 ticks this GP) >>>>> idle=47a/141/0 softirq=349/349 fqs=7495 >>>>> [ 150.451124] (detected by 13, t=15002 jiffies, g=805, c=804, q=8384) >>>>> [ 150.451136] Task dump for CPU 25: >>>>> [ 150.451138] kworker/25:1R running task0 454 2 >>>>> 0x0002 >>>&g
Re: host stalls when qemu-system-aarch64 with kvm and pflash
On Wed, Mar 29, 2017 at 2:06 PM, Christoffer Dall <cd...@linaro.org> wrote: > On Wed, Mar 29, 2017 at 01:51:19PM -0700, Radha Mohan wrote: >> On Wed, Mar 29, 2017 at 11:56 AM, Christoffer Dall <cd...@linaro.org> wrote: >> > On Tue, Mar 28, 2017 at 01:24:15PM -0700, Radha Mohan wrote: >> >> On Tue, Mar 28, 2017 at 1:16 PM, Christoffer Dall <cd...@linaro.org> >> >> wrote: >> >> > Hi Radha, >> >> > >> >> > On Tue, Mar 28, 2017 at 12:58:24PM -0700, Radha Mohan wrote: >> >> >> Hi, >> >> >> I am seeing an issue with qemu-system-aarch64 when using pflash >> >> >> (booting kernel via UEFI bios). >> >> >> >> >> >> Host kernel: 4.11.0-rc3-next-20170323 >> >> >> Qemu version: v2.9.0-rc1 >> >> >> >> >> >> Command used: >> >> >> ./aarch64-softmmu/qemu-system-aarch64 -cpu host -enable-kvm -M >> >> >> virt,gic_version=3 -nographic -smp 1 -m 2048 -drive >> >> >> if=none,id=hd0,file=/root/zesty-server-cloudimg-arm64.img,id=0 -device >> >> >> virtio-blk-device,drive=hd0 -pflash /root/flash0.img -pflash >> >> >> /root/flash1.img >> >> >> >> >> >> >> >> >> As soon as the guest kernel boots the host starts to stall and prints >> >> >> the below messages. And the system never recovers. I can neither >> >> >> poweroff the guest nor the host. So I have resort to external power >> >> >> reset of the host. >> >> >> >> >> >> == >> >> >> [ 116.199077] NMI watchdog: BUG: soft lockup - CPU#25 stuck for 23s! >> >> >> [kworker/25:1:454] >> >> >> [ 116.206901] Modules linked in: binfmt_misc nls_iso8859_1 aes_ce_blk >> >> >> shpchp crypto_simd gpio_keys cryptd aes_ce_cipher ghash_ce sha2_ce >> >> >> sha1_ce uio_pdrv_genirq uio autofs4 btrfs raid10 rai >> >> >> d456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor >> >> >> raid6_pq libcrc32c raid1 raid0 multipath linear ast i2c_algo_bit ttm >> >> >> drm_kms_helper syscopyarea sysfillrect sysimgblt fb_s >> >> >> ys_fops drm nicvf ahci nicpf libahci thunder_bgx thunder_xcv >> >> >> mdio_thunder mdio_cavium >> >> >> >> >> >> [ 116.206995] CPU: 25 PID: 454 Comm: kworker/25:1 Not tainted >> >> >> 4.11.0-rc3-next-20170323 #1 >> >> >> [ 116.206997] Hardware name: www.cavium.com crb-1s/crb-1s, BIOS 0.3 >> >> >> Feb 23 2017 >> >> >> [ 116.207010] Workqueue: events netstamp_clear >> >> >> [ 116.207015] task: 801f906b5400 task.stack: 801f901a4000 >> >> >> [ 116.207020] PC is at smp_call_function_many+0x284/0x2e8 >> >> >> [ 116.207023] LR is at smp_call_function_many+0x244/0x2e8 >> >> >> [ 116.207026] pc : [] lr : [] >> >> >> pstate: 8145 >> >> >> [ 116.207028] sp : 801f901a7be0 >> >> >> [ 116.207030] x29: 801f901a7be0 x28: 09139000 >> >> >> [ 116.207036] x27: 09139434 x26: 0080 >> >> >> [ 116.207041] x25: x24: 081565d0 >> >> >> [ 116.207047] x23: 0001 x22: 08e11e00 >> >> >> [ 116.207052] x21: 801f6d5cff00 x20: 801f6d5cff08 >> >> >> [ 116.207057] x19: 09138e38 x18: 0a03 >> >> >> [ 116.207063] x17: b77c9028 x16: 082e81d8 >> >> >> [ 116.207068] x15: 3d0d6dd44d08 x14: 0036312196549b4a >> >> >> [ 116.207073] x13: 58dabe4c x12: 0018 >> >> >> [ 116.207079] x11: 366e2f04 x10: 09f0 >> >> >> [ 116.207084] x9 : 801f901a7d30 x8 : 0002 >> >> >> [ 116.207089] x7 : x6 : >> >> >> [ 116.207095] x5 : x4 : 0020 >> >> >> [ 116.207100] x3 : 0020 x2 : >> >> >> [ 116.207105] x1 : 801f6d682578 x0 : 0003 >> >> >> >> >> >> [ 150.443116] INFO: rcu_sched self-detected stall on CPU >> >> >> [ 150.448261] 25-...: (14997 ticks this GP) >> >> >> idle=47a/14000
Re: host stalls when qemu-system-aarch64 with kvm and pflash
On Wed, Mar 29, 2017 at 11:56 AM, Christoffer Dall <cd...@linaro.org> wrote: > On Tue, Mar 28, 2017 at 01:24:15PM -0700, Radha Mohan wrote: >> On Tue, Mar 28, 2017 at 1:16 PM, Christoffer Dall <cd...@linaro.org> wrote: >> > Hi Radha, >> > >> > On Tue, Mar 28, 2017 at 12:58:24PM -0700, Radha Mohan wrote: >> >> Hi, >> >> I am seeing an issue with qemu-system-aarch64 when using pflash >> >> (booting kernel via UEFI bios). >> >> >> >> Host kernel: 4.11.0-rc3-next-20170323 >> >> Qemu version: v2.9.0-rc1 >> >> >> >> Command used: >> >> ./aarch64-softmmu/qemu-system-aarch64 -cpu host -enable-kvm -M >> >> virt,gic_version=3 -nographic -smp 1 -m 2048 -drive >> >> if=none,id=hd0,file=/root/zesty-server-cloudimg-arm64.img,id=0 -device >> >> virtio-blk-device,drive=hd0 -pflash /root/flash0.img -pflash >> >> /root/flash1.img >> >> >> >> >> >> As soon as the guest kernel boots the host starts to stall and prints >> >> the below messages. And the system never recovers. I can neither >> >> poweroff the guest nor the host. So I have resort to external power >> >> reset of the host. >> >> >> >> == >> >> [ 116.199077] NMI watchdog: BUG: soft lockup - CPU#25 stuck for 23s! >> >> [kworker/25:1:454] >> >> [ 116.206901] Modules linked in: binfmt_misc nls_iso8859_1 aes_ce_blk >> >> shpchp crypto_simd gpio_keys cryptd aes_ce_cipher ghash_ce sha2_ce >> >> sha1_ce uio_pdrv_genirq uio autofs4 btrfs raid10 rai >> >> d456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor >> >> raid6_pq libcrc32c raid1 raid0 multipath linear ast i2c_algo_bit ttm >> >> drm_kms_helper syscopyarea sysfillrect sysimgblt fb_s >> >> ys_fops drm nicvf ahci nicpf libahci thunder_bgx thunder_xcv >> >> mdio_thunder mdio_cavium >> >> >> >> [ 116.206995] CPU: 25 PID: 454 Comm: kworker/25:1 Not tainted >> >> 4.11.0-rc3-next-20170323 #1 >> >> [ 116.206997] Hardware name: www.cavium.com crb-1s/crb-1s, BIOS 0.3 Feb >> >> 23 2017 >> >> [ 116.207010] Workqueue: events netstamp_clear >> >> [ 116.207015] task: 801f906b5400 task.stack: 801f901a4000 >> >> [ 116.207020] PC is at smp_call_function_many+0x284/0x2e8 >> >> [ 116.207023] LR is at smp_call_function_many+0x244/0x2e8 >> >> [ 116.207026] pc : [] lr : [] >> >> pstate: 8145 >> >> [ 116.207028] sp : 801f901a7be0 >> >> [ 116.207030] x29: 801f901a7be0 x28: 09139000 >> >> [ 116.207036] x27: 09139434 x26: 0080 >> >> [ 116.207041] x25: x24: 081565d0 >> >> [ 116.207047] x23: 0001 x22: 08e11e00 >> >> [ 116.207052] x21: 801f6d5cff00 x20: 801f6d5cff08 >> >> [ 116.207057] x19: 09138e38 x18: 0a03 >> >> [ 116.207063] x17: b77c9028 x16: 082e81d8 >> >> [ 116.207068] x15: 3d0d6dd44d08 x14: 0036312196549b4a >> >> [ 116.207073] x13: 58dabe4c x12: 0018 >> >> [ 116.207079] x11: 366e2f04 x10: 09f0 >> >> [ 116.207084] x9 : 801f901a7d30 x8 : 0002 >> >> [ 116.207089] x7 : x6 : >> >> [ 116.207095] x5 : x4 : 0020 >> >> [ 116.207100] x3 : 0020 x2 : >> >> [ 116.207105] x1 : 801f6d682578 x0 : 0003 >> >> >> >> [ 150.443116] INFO: rcu_sched self-detected stall on CPU >> >> [ 150.448261] 25-...: (14997 ticks this GP) >> >> idle=47a/141/0 softirq=349/349 fqs=7495 >> >> [ 150.451115] INFO: rcu_sched detected stalls on CPUs/tasks: >> >> [ 150.451123] 25-...: (14997 ticks this GP) >> >> idle=47a/141/0 softirq=349/349 fqs=7495 >> >> [ 150.451124] (detected by 13, t=15002 jiffies, g=805, c=804, q=8384) >> >> [ 150.451136] Task dump for CPU 25: >> >> [ 150.451138] kworker/25:1R running task0 454 2 >> >> 0x0002 >> >> [ 150.451155] Workqueue: events netstamp_clear >> >> [ 150.451158] Call trace: >> >> [ 150.451164] [] __switch_to+0x90/0xa8 >> >> [ 150.451172] [] static_key_slow_inc+0x128/0x138 >> >> [ 150.451175]
Re: host stalls when qemu-system-aarch64 with kvm and pflash
On Tue, Mar 28, 2017 at 1:24 PM, Radha Mohan <mohun...@gmail.com> wrote: > On Tue, Mar 28, 2017 at 1:16 PM, Christoffer Dall <cd...@linaro.org> wrote: >> Hi Radha, >> >> On Tue, Mar 28, 2017 at 12:58:24PM -0700, Radha Mohan wrote: >>> Hi, >>> I am seeing an issue with qemu-system-aarch64 when using pflash >>> (booting kernel via UEFI bios). >>> >>> Host kernel: 4.11.0-rc3-next-20170323 >>> Qemu version: v2.9.0-rc1 >>> >>> Command used: >>> ./aarch64-softmmu/qemu-system-aarch64 -cpu host -enable-kvm -M >>> virt,gic_version=3 -nographic -smp 1 -m 2048 -drive >>> if=none,id=hd0,file=/root/zesty-server-cloudimg-arm64.img,id=0 -device >>> virtio-blk-device,drive=hd0 -pflash /root/flash0.img -pflash >>> /root/flash1.img >>> >>> >>> As soon as the guest kernel boots the host starts to stall and prints >>> the below messages. And the system never recovers. I can neither >>> poweroff the guest nor the host. So I have resort to external power >>> reset of the host. >>> >>> == >>> [ 116.199077] NMI watchdog: BUG: soft lockup - CPU#25 stuck for 23s! >>> [kworker/25:1:454] >>> [ 116.206901] Modules linked in: binfmt_misc nls_iso8859_1 aes_ce_blk >>> shpchp crypto_simd gpio_keys cryptd aes_ce_cipher ghash_ce sha2_ce >>> sha1_ce uio_pdrv_genirq uio autofs4 btrfs raid10 rai >>> d456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor >>> raid6_pq libcrc32c raid1 raid0 multipath linear ast i2c_algo_bit ttm >>> drm_kms_helper syscopyarea sysfillrect sysimgblt fb_s >>> ys_fops drm nicvf ahci nicpf libahci thunder_bgx thunder_xcv >>> mdio_thunder mdio_cavium >>> >>> [ 116.206995] CPU: 25 PID: 454 Comm: kworker/25:1 Not tainted >>> 4.11.0-rc3-next-20170323 #1 >>> [ 116.206997] Hardware name: www.cavium.com crb-1s/crb-1s, BIOS 0.3 Feb 23 >>> 2017 >>> [ 116.207010] Workqueue: events netstamp_clear >>> [ 116.207015] task: 801f906b5400 task.stack: 801f901a4000 >>> [ 116.207020] PC is at smp_call_function_many+0x284/0x2e8 >>> [ 116.207023] LR is at smp_call_function_many+0x244/0x2e8 >>> [ 116.207026] pc : [] lr : [] >>> pstate: 8145 >>> [ 116.207028] sp : 801f901a7be0 >>> [ 116.207030] x29: 801f901a7be0 x28: 09139000 >>> [ 116.207036] x27: 09139434 x26: 0080 >>> [ 116.207041] x25: x24: 081565d0 >>> [ 116.207047] x23: 0001 x22: 08e11e00 >>> [ 116.207052] x21: 801f6d5cff00 x20: 801f6d5cff08 >>> [ 116.207057] x19: 09138e38 x18: 0a03 >>> [ 116.207063] x17: b77c9028 x16: 082e81d8 >>> [ 116.207068] x15: 3d0d6dd44d08 x14: 0036312196549b4a >>> [ 116.207073] x13: 58dabe4c x12: 0018 >>> [ 116.207079] x11: 366e2f04 x10: 09f0 >>> [ 116.207084] x9 : 801f901a7d30 x8 : 0002 >>> [ 116.207089] x7 : x6 : >>> [ 116.207095] x5 : x4 : 0020 >>> [ 116.207100] x3 : 0020 x2 : >>> [ 116.207105] x1 : 801f6d682578 x0 : 0003 >>> >>> [ 150.443116] INFO: rcu_sched self-detected stall on CPU >>> [ 150.448261] 25-...: (14997 ticks this GP) >>> idle=47a/141/0 softirq=349/349 fqs=7495 >>> [ 150.451115] INFO: rcu_sched detected stalls on CPUs/tasks: >>> [ 150.451123] 25-...: (14997 ticks this GP) >>> idle=47a/141/0 softirq=349/349 fqs=7495 >>> [ 150.451124] (detected by 13, t=15002 jiffies, g=805, c=804, q=8384) >>> [ 150.451136] Task dump for CPU 25: >>> [ 150.451138] kworker/25:1R running task0 454 2 >>> 0x0002 >>> [ 150.451155] Workqueue: events netstamp_clear >>> [ 150.451158] Call trace: >>> [ 150.451164] [] __switch_to+0x90/0xa8 >>> [ 150.451172] [] static_key_slow_inc+0x128/0x138 >>> [ 150.451175] [] static_key_enable+0x34/0x60 >>> [ 150.451178] [] netstamp_clear+0x68/0x80 >>> [ 150.451181] [] process_one_work+0x158/0x478 >>> [ 150.451183] [] worker_thread+0x50/0x4a8 >>> [ 150.451187] [] kthread+0x108/0x138 >>> [ 150.451190] [] ret_from_fork+0x10/0x50 >>> [ 150.477451] (t=15008 jiffies g=805 c=804 q=8384) >>> [ 150.482242] Task dump for CPU 25: >>> [ 150.482245] kworker/25:
Re: host stalls when qemu-system-aarch64 with kvm and pflash
On Tue, Mar 28, 2017 at 1:16 PM, Christoffer Dall <cd...@linaro.org> wrote: > Hi Radha, > > On Tue, Mar 28, 2017 at 12:58:24PM -0700, Radha Mohan wrote: >> Hi, >> I am seeing an issue with qemu-system-aarch64 when using pflash >> (booting kernel via UEFI bios). >> >> Host kernel: 4.11.0-rc3-next-20170323 >> Qemu version: v2.9.0-rc1 >> >> Command used: >> ./aarch64-softmmu/qemu-system-aarch64 -cpu host -enable-kvm -M >> virt,gic_version=3 -nographic -smp 1 -m 2048 -drive >> if=none,id=hd0,file=/root/zesty-server-cloudimg-arm64.img,id=0 -device >> virtio-blk-device,drive=hd0 -pflash /root/flash0.img -pflash >> /root/flash1.img >> >> >> As soon as the guest kernel boots the host starts to stall and prints >> the below messages. And the system never recovers. I can neither >> poweroff the guest nor the host. So I have resort to external power >> reset of the host. >> >> == >> [ 116.199077] NMI watchdog: BUG: soft lockup - CPU#25 stuck for 23s! >> [kworker/25:1:454] >> [ 116.206901] Modules linked in: binfmt_misc nls_iso8859_1 aes_ce_blk >> shpchp crypto_simd gpio_keys cryptd aes_ce_cipher ghash_ce sha2_ce >> sha1_ce uio_pdrv_genirq uio autofs4 btrfs raid10 rai >> d456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor >> raid6_pq libcrc32c raid1 raid0 multipath linear ast i2c_algo_bit ttm >> drm_kms_helper syscopyarea sysfillrect sysimgblt fb_s >> ys_fops drm nicvf ahci nicpf libahci thunder_bgx thunder_xcv >> mdio_thunder mdio_cavium >> >> [ 116.206995] CPU: 25 PID: 454 Comm: kworker/25:1 Not tainted >> 4.11.0-rc3-next-20170323 #1 >> [ 116.206997] Hardware name: www.cavium.com crb-1s/crb-1s, BIOS 0.3 Feb 23 >> 2017 >> [ 116.207010] Workqueue: events netstamp_clear >> [ 116.207015] task: 801f906b5400 task.stack: 801f901a4000 >> [ 116.207020] PC is at smp_call_function_many+0x284/0x2e8 >> [ 116.207023] LR is at smp_call_function_many+0x244/0x2e8 >> [ 116.207026] pc : [] lr : [] >> pstate: 8145 >> [ 116.207028] sp : 801f901a7be0 >> [ 116.207030] x29: 801f901a7be0 x28: 09139000 >> [ 116.207036] x27: 09139434 x26: 0080 >> [ 116.207041] x25: x24: 081565d0 >> [ 116.207047] x23: 0001 x22: 08e11e00 >> [ 116.207052] x21: 801f6d5cff00 x20: 801f6d5cff08 >> [ 116.207057] x19: 09138e38 x18: 0a03 >> [ 116.207063] x17: b77c9028 x16: 082e81d8 >> [ 116.207068] x15: 3d0d6dd44d08 x14: 0036312196549b4a >> [ 116.207073] x13: 58dabe4c x12: 0018 >> [ 116.207079] x11: 366e2f04 x10: 09f0 >> [ 116.207084] x9 : 801f901a7d30 x8 : 0002 >> [ 116.207089] x7 : x6 : >> [ 116.207095] x5 : x4 : 0020 >> [ 116.207100] x3 : 0020 x2 : >> [ 116.207105] x1 : 801f6d682578 x0 : 0003 >> >> [ 150.443116] INFO: rcu_sched self-detected stall on CPU >> [ 150.448261] 25-...: (14997 ticks this GP) >> idle=47a/141/0 softirq=349/349 fqs=7495 >> [ 150.451115] INFO: rcu_sched detected stalls on CPUs/tasks: >> [ 150.451123] 25-...: (14997 ticks this GP) >> idle=47a/141/0 softirq=349/349 fqs=7495 >> [ 150.451124] (detected by 13, t=15002 jiffies, g=805, c=804, q=8384) >> [ 150.451136] Task dump for CPU 25: >> [ 150.451138] kworker/25:1R running task0 454 2 >> 0x0002 >> [ 150.451155] Workqueue: events netstamp_clear >> [ 150.451158] Call trace: >> [ 150.451164] [] __switch_to+0x90/0xa8 >> [ 150.451172] [] static_key_slow_inc+0x128/0x138 >> [ 150.451175] [] static_key_enable+0x34/0x60 >> [ 150.451178] [] netstamp_clear+0x68/0x80 >> [ 150.451181] [] process_one_work+0x158/0x478 >> [ 150.451183] [] worker_thread+0x50/0x4a8 >> [ 150.451187] [] kthread+0x108/0x138 >> [ 150.451190] [] ret_from_fork+0x10/0x50 >> [ 150.477451] (t=15008 jiffies g=805 c=804 q=8384) >> [ 150.482242] Task dump for CPU 25: >> [ 150.482245] kworker/25:1R running task0 454 2 >> 0x0002 >> [ 150.482259] Workqueue: events netstamp_clear >> [ 150.482264] Call trace: >> [ 150.482271] [] dump_backtrace+0x0/0x2b0 >> [ 150.482277] [] show_stack+0x24/0x30 >> [ 150.482281] [] sched_show_task+0x128/0x178 >> [ 150.482285] [] dump_cpu_task+0x48/0x58 >> [ 150.482288] [] rcu_dump_cpu_stacks+0xa0/0xe8 >>
