Re: BUG: unable to handle kernel paging request at 00007ffd7ce07800

OK Too fast, there were overruns with 11 CPUs, none with 8, but the
latency max was OK.

On Wed, November 23, 2016 1:35 pm, Douglas Renton wrote:
> OK, One last test, with 11 CPUs, Seems to work! 12 seems to be the
> trouble? Same kernel error.
> Calibrate seems to crash the computer.
>
>
> *
> *
> * Type ^C to stop this application.
> *
> *
> RTAI Testsuite - KERNEL space latency test (output data in nanoseconds)
>
>
> *** latency verification tool with RTAI own real time kernel tasks ***
> ***    period = 100000 (ns),  avrgtime = 1 (s)    ***
>
>
> RTH|    lat min|    ovl min|    lat avg|    lat max|    ovl max|
> overruns RTD|        216|        216|        466|       2630|       2630|
> 170
> RTD|        180|        180|        405|       2259|       2630|
> 170
> RTD|        185|        180|        466|       2909|       2909|
> 170
> RTD|        219|        180|        464|       2536|       2909|
> 170
> RTD|        208|        180|        442|       2511|       2909|
> 170
> RTD|        178|        178|        465|       2321|       2909|
> 170
> RTD|        229|        178|        463|       2651|       2909|
> 170
> RTD|        346|        178|        457|       2229|       2909|
> 170
> RTD|        168|        168|        458|       2470|       2909|
> 170
> RTD|        268|        168|        464|       2558|       2909|
> 170
> RTD|        242|        168|        461|       2450|       2909|
> 170
> RTD|        256|        168|        462|       2017|       2909|
> 170
> RTD|        329|        168|        463|       2787|       2909|
> 170
> ^CRTD|        329|        168|        463|       2787|       2909|
> 170
>
>
>
>
> linux-36hs:/home/doug # dmesg
> [  119.613932] I-pipe: head domain RTAI registered.
> [  119.613935] RTAI[hal]: mounted. ISOL_CPUS_MASK: 0.
> [  119.613936] SYSINFO - # CPUs: 11, TIMER NAME: 'lapic', TIMER IRQ: 4353,
>  TIMER FREQ: 6246329, CLOCK NAME: 'tsc', CLOCK FREQ: 3398010000, CPU
> FREQ:
> 3398010000, LINUX TIMER IRQ: 4353.
> [  119.623596] rtai_malloc: module license 'unspecified' taints kernel.
> [  119.623599] Disabling lock debugging due to kernel taint
> [  119.623923] RTAI[malloc]: global heap size = 4194304 bytes, <BSD>.
> [  119.637862] , kstacks pool size = 524288 bytes.
> [  119.637865] RTAI[sched]: hard timer type/freq = lapic/6246329(Hz);
> timing: oneshot; linear timed lists.
> [  119.637866] RTAI[sched]: Linux timer freq = 1000 (Hz), TimeBase freq =
> 3398010000 hz.
> [  119.637867] RTAI[sched]: timer setup = 160 ns, resched latency = 0 ns.
> [  119.638991] BUG: unable to handle kernel paging request at
> 00007ffc5c0a5de0
> [  119.639002] IP: [<ffffffffa0703631>] handle_lxrt_request+0x131/0x7d0
> [rtai_sched]
> [  119.639012] PGD 7e8eed067 PUD 7e8ef0067 PMD 7e8ef1067 PTE
> 80000007d34ad867
> [  119.639020] Oops: 0001 [#1] PREEMPT SMP
> [  119.639026] Modules linked in: rtai_sched(O+) rtai_malloc(PO)
> rtai_hal(O) fuse af_packet snd_hda_codec_hdmi snd_hda_codec_realtek
> snd_hda_codec_generic xfs libcrc32c iTCO_wdt iTCO_vendor_support mxm_wmi
> x86_pkg_temp_thermal coretemp snd_hda_intel snd_hda_controller kvm
> snd_hda_codec snd_hwdep snd_pcm crct10dif_pclmul crc32_pclmul
> ghash_clmulni_intel snd_timer aesni_intel aes_x86_64 lrw gf128mul
> glue_helper ablk_helper cryptd e1000e snd serio_raw ptp mei_me xhci_pci
> pps_core mei soundcore xhci_hcd lpc_ich shpchp i2c_i801 mfd_core dm_mod
> btrfs xor raid6_pq crc32c_intel nouveau video i2c_algo_bit drm_kms_helper
>  ttm drm wmi sg [  119.639111] CPU: 2 PID: 2071 Comm: calibrate Tainted: P
> O
> 3.18.22-STRADM #13
> [  119.639116] Hardware name: ASUS All Series/X99-A II, BIOS 0801
> 06/28/2016
> [  119.639122] task: ffff8807e901e250 ti: ffff8807f5b00000 task.ti:
> ffff8807f5b00000 [  119.639126] RIP: 0010:[<ffffffffa0703631>]
> [<ffffffffa0703631>]
> handle_lxrt_request+0x131/0x7d0 [rtai_sched] [  119.639135] RSP:
> 0018:ffff8807f5b03e78  EFLAGS: 00010206
> [  119.639138] RAX: ffff8807f5b00000 RBX: 00007ffc5c0a5de0 RCX:
> 0000000000000407
> [  119.639142] RDX: 0000000000000000 RSI: 00007ffc5c0a5de0 RDI:
> 0000000000407818
> [  119.639146] RBP: ffff8807f5b03ec8 R08: 00007ffc5c0a7f69 R09:
> 00007ffc00000001
> [  119.639149] R10: 00007ffc5c0a5da8 R11: 0000000000000206 R12:
> 0000000000000000
> [  119.639153] R13: 0000000000407818 R14: 0000000000000000 R15:
> 0000000000000000
> [  119.639157] FS:  00007faae9064700(0000) GS:ffff88081f100000(0000)
> knlGS:0000000000000000
> [  119.639161] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [  119.639165] CR2: 00007ffc5c0a5de0 CR3: 00000007e8eec000 CR4:
> 00000000003407e0
> [  119.639169] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> 0000000000000000
> [  119.639172] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
> 0000000000000400
> [  119.639176] I-pipe domain Linux
> [  119.639178] Stack:
> [  119.639181]  00000000000002a6 ffff880700000000 0000000000000000
> ffff8807e8bb2e60 [  119.639188]  00000000e8bb2c00 ffff8807e8bb2e48
> 00007ffc5c0a5de0
> 0000000000000000
> [  119.639195]  0000000000407818 0000000000000000 ffff8807f5b03f38
> ffffffffa0703ec0 [  119.639203] Call Trace:
> [  119.639209]  [<ffffffffa0703ec0>] rtai_lxrt_invoke+0x1f0/0x900
> [rtai_sched]
> [  119.639215]  [<ffffffff810ea996>] ? __audit_syscall_exit+0x236/0x2e0
> [  119.639221]  [<ffffffffa07022b5>] lxrt_intercept_syscall+0xc5/0x190
> [rtai_sched]
> [  119.639227]  [<ffffffff81602a18>] ?
> int_check_syscall_exit_work+0x34/0x3d [  119.639233]  [<ffffffff811005d9>]
> __ipipe_notify_syscall+0x19/0x20
> [  119.639239]  [<ffffffff8160268e>] pipeline_syscall+0xa/0x17
> [  119.639242] Code: 89 04 24 31 c0 41 ff 52 08 48 83 c4 30 5b 41 5c 41 5d
>  41 5e 5d c3 48 c7 c7 b8 c6 70 a0 e8 e8 83 f7 ff 48 c7 c0 da ff ff ff eb
> 96
> <4c> 8b 2e 8d 91 18 fc ff ff 83 fa 20 4c 89 e8 0f 87 85 00 00 00
> [  119.639313] RIP  [<ffffffffa0703631>] handle_lxrt_request+0x131/0x7d0
> [rtai_sched]
> [  119.639320]  RSP <ffff8807f5b03e78>
> [  119.639322] CR2: 00007ffc5c0a5de0
> [  119.646686] ---[ end trace 204925a1f6280314 ]---
> [  119.646764] USERMODE CHECK: ERROR.
> [  119.646766] USERMODE CHECK PROVIDED (ns): KernelLatency 0, UserLatency
> 0.
> [  119.646767] FINAL CALIBRATION SUMMARY (ns): KernelLatency 0,
> UserLatency 0.
> [  134.396556]
>
>
> CPU USE SUMMARY
> [  134.396561] # 0 -> 147409
> [  134.396561] # 1 -> 0
> [  134.396562] # 2 -> 0
> [  134.396563] # 3 -> 0
> [  134.396564] # 4 -> 0
> [  134.396564] # 5 -> 0
> [  134.396565] # 6 -> 0
> [  134.396566] # 7 -> 0
> [  134.396566] # 8 -> 0
> [  134.396567] # 9 -> 0
> [  134.396568] # 10 -> 0
> [  134.396568] END OF CPU USE SUMMARY
>
>
> [  136.481972] RTAI[sched]: unloaded (forced hard/soft/hard transitions:
> traps 0, syscalls 0). [  136.487247] RTAI[malloc]: unloaded.
> [  136.492460] I-pipe: head domain RTAI unregistered.
> [  136.492469] RTAI[hal]: unmounted.
> linux-36hs:/home/doug #
>
>
>
> n Wed, November 23, 2016 12:54 pm, Douglas Renton wrote:
>> And just for completeness, 12 cpu/cores back to the long(er) delays
>> So there does seem to be an issue with 12 CPUs
>>
>>
>>
>>
>> linux-36hs:/usr/realtime/testsuite/kern/latency # ./run
>> *
>> *
>> * Type ^C to stop this application.
>> *
>> *
>> RTAI Testsuite - KERNEL space latency test (output data in nanoseconds)
>>
>>
>>
>> *** latency verification tool with RTAI own real time kernel tasks ***
>> ***    period = 100000 (ns),  avrgtime = 1 (s)    ***
>>
>>
>>
>> RTH|    lat min|    ovl min|    lat avg|    lat max|    ovl max|
>> overruns RTD|        228|        228|       1211|      18565|
>> 18565|
>> 1317
>> RTD|        169|        169|       1202|      20514|      20514|
>> 1317
>> RTD|        226|        169|       1210|      22343|      22343|
>> 1317
>> RTD|        296|        169|       1207|      16967|      22343|
>> 1317
>> RTD|        266|        169|       1207|      23541|      23541|
>> 1317
>> ^CRTD|        266|        169|       1207|      23541|      23541|
>> 1317
>>
>>
>>
>> linux-36hs:/usr/realtime/testsuite/kern/latency #
>>
>>
>>
>> linux-36hs:/home/doug # dmesg
>> [  671.257925] I-pipe: head domain RTAI registered.
>> [  671.257928] RTAI[hal]: mounted. ISOL_CPUS_MASK: 0.
>> [  671.257930] SYSINFO - # CPUs: 12, TIMER NAME: 'lapic', TIMER IRQ:
>> 4353,
>> TIMER FREQ: 6246329, CLOCK NAME: 'tsc', CLOCK FREQ: 3398027000, CPU
>> FREQ:
>> 3398027000, LINUX TIMER IRQ: 4353.
>> [  671.267951] RTAI[malloc]: global heap size = 4194304 bytes, <BSD>.
>> [  671.278691] , kstacks pool size = 524288 bytes.
>> [  671.278694] RTAI[sched]: hard timer type/freq = lapic/6246329(Hz);
>> timing: oneshot; linear timed lists.
>> [  671.278695] RTAI[sched]: Linux timer freq = 1000 (Hz), TimeBase freq
>> =
>> 3398027000 hz.
>> [  671.278696] RTAI[sched]: timer setup = 160 ns, resched latency = 0
>> ns. [  671.289332] BUG: unable to handle kernel paging request at
>> 00007ffe7b6c3aa0
>> [  671.289343] IP: [<ffffffffa0688631>] handle_lxrt_request+0x131/0x7d0
>> [rtai_sched]
>> [  671.289353] PGD 7f3fb9067 PUD 798a23067 PMD 7bae93067 PTE
>> 80000007ce198867
>> [  671.289361] Oops: 0001 [#2] PREEMPT SMP
>> [  671.289367] Modules linked in: rtai_sched(O+) rtai_malloc(PO)
>> rtai_hal(O) st sr_mod cdrom fuse af_packet snd_hda_codec_hdmi
>> snd_hda_codec_realtek snd_hda_codec_generic xfs libcrc32c
>> x86_pkg_temp_thermal coretemp kvm iTCO_wdt iTCO_vendor_support mxm_wmi
>> snd_hda_intel snd_hda_controller snd_hda_codec crct10dif_pclmul
>> crc32_pclmul snd_hwdep ghash_clmulni_intel snd_pcm aesni_intel
>> aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd snd_timer e1000e
>> serio_raw snd i2c_i801 xhci_pci ptp mei_me xhci_hcd lpc_ich mei mfd_core
>> pps_core soundcore shpchp dm_mod btrfs xor raid6_pq nouveau video
>> i2c_algo_bit crc32c_intel drm_kms_helper ttm drm wmi sg [last unloaded:
>> rtai_hal] [ 671.289460] CPU: 3 PID: 4711 Comm: calibrate Tainted: P
>> D    O
>> 3.18.22-STRADM #12
>> [  671.289464] Hardware name: ASUS All Series/X99-A II, BIOS 0801
>> 06/28/2016
>> [  671.289468] task: ffff8800cab40190 ti: ffff88078c53c000 task.ti:
>> ffff88078c53c000 [  671.289472] RIP: 0010:[<ffffffffa0688631>]
>> [<ffffffffa0688631>]
>> handle_lxrt_request+0x131/0x7d0 [rtai_sched] [  671.289481] RSP:
>> 0018:ffff88078c53fe78  EFLAGS: 00010206
>> [  671.289485] RAX: ffff88078c53c000 RBX: 00007ffe7b6c3aa0 RCX:
>> 0000000000000407
>> [  671.289489] RDX: 0000000000000000 RSI: 00007ffe7b6c3aa0 RDI:
>> 0000000000407818
>> [  671.289492] RBP: ffff88078c53fec8 R08: 00007ffe7b6c3f69 R09:
>> 00007ffe00000001
>> [  671.289496] R10: 00007ffe7b6c3a68 R11: 0000000000000202 R12:
>> 0000000000000000
>> [  671.289500] R13: 0000000000407818 R14: 0000000000000000 R15:
>> 0000000000000000
>> [  671.289504] FS:  00007f20f4ac3700(0000) GS:ffff88081f2c0000(0000)
>> knlGS:0000000000000000
>> [  671.289508] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> [  671.289511] CR2: 00007ffe7b6c3aa0 CR3: 000000078c642000 CR4:
>> 00000000003407e0
>> [  671.289515] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
>> 0000000000000000
>> [  671.289519] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
>> 0000000000000400
>> [  671.289523] I-pipe domain Linux
>> [  671.289525] Stack:
>> [  671.289527]  00000000000002a6 ffff880700000000 0000000000000000
>> ffff8807e9565a60 [  671.289536]  00000000e9565800 ffff8807e9565a48
>> 00007ffe7b6c3aa0
>> 0000000000000000
>> [  671.289543]  0000000000407818 0000000000000000 ffff88078c53ff38
>> ffffffffa0688ec0 [  671.289550] Call Trace: [  671.289556]
>> [<ffffffffa0688ec0>] rtai_lxrt_invoke+0x1f0/0x900
>> [rtai_sched]
>> [  671.290561]  [<ffffffff810ea996>] ? __audit_syscall_exit+0x236/0x2e0
>> [  671.291794]  [<ffffffffa06872b5>] lxrt_intercept_syscall+0xc5/0x190
>> [rtai_sched]
>> [  671.293022]  [<ffffffff81602a18>] ?
>> int_check_syscall_exit_work+0x34/0x3d [  671.294245]
>> [<ffffffff811005d9>]
>> __ipipe_notify_syscall+0x19/0x20
>> [  671.295430]  [<ffffffff8160268e>] pipeline_syscall+0xa/0x17
>> [  671.296577] Code: 89 04 24 31 c0 41 ff 52 08 48 83 c4 30 5b 41 5c 41
>> 5d
>> 41 5e 5d c3 48 c7 c7 b8 16 69 a0 e8 e8 e3 03 00 48 c7 c0 da ff ff ff eb
>> 96
>> <4c> 8b 2e 8d 91 18 fc ff ff 83 fa 20 4c 89 e8 0f 87 85 00 00 00
>> [  671.297767] RIP  [<ffffffffa0688631>] handle_lxrt_request+0x131/0x7d0
>>  [rtai_sched]
>> [  671.298930]  RSP <ffff88078c53fe78>
>> [  671.300061] CR2: 00007ffe7b6c3aa0
>> [  671.301175] ---[ end trace 3f395e14704b000b ]---
>> [  671.301227] USERMODE CHECK: ERROR.
>> [  671.301228] USERMODE CHECK PROVIDED (ns): KernelLatency 0,
>> UserLatency
>> 0.
>> [  671.301229] FINAL CALIBRATION SUMMARY (ns): KernelLatency 0,
>> UserLatency 0.
>> [  678.091058]
>>
>>
>>
>> CPU USE SUMMARY
>> [  678.091063] # 0 -> 67747
>> [  678.091064] # 1 -> 0
>> [  678.091065] # 2 -> 0
>> [  678.091066] # 3 -> 0
>> [  678.091066] # 4 -> 0
>> [  678.091067] # 5 -> 0
>> [  678.091068] # 6 -> 0
>> [  678.091068] # 7 -> 0
>> [  678.091069] # 8 -> 0
>> [  678.091070] # 9 -> 0
>> [  678.091070] # 10 -> 0
>> [  678.091071] # 11 -> 0
>> [  678.091072] END OF CPU USE SUMMARY
>>
>>
>>
>> [  678.840460] RTAI[sched]: unloaded (forced hard/soft/hard
>> transitions:
>> traps 0, syscalls 0). [  678.846013] RTAI[malloc]: unloaded. [
>> 678.851227] I-pipe: head domain RTAI unregistered.
>> [  678.851235] RTAI[hal]: unmounted.
>> linux-36hs:/home/doug #
>>
>>
>>
>>
>>
>>
>>
>> On Wed, November 23, 2016 12:13 pm, Douglas Renton wrote:
>>
>>
>>> OK, 8 Cores is the same as 4 as far as I can see, Much Better than
>>> 12!
>>> :(
>>> *
>>> *
>>> * Type ^C to stop this application.
>>> *
>>> *
>>> RTAI Testsuite - KERNEL space latency test (output data in
>>> nanoseconds)
>>>
>>>
>>>
>>> *** latency verification tool with RTAI own real time kernel tasks
>>> ***
>>> ***    period = 100000 (ns),  avrgtime = 1 (s)    ***
>>>
>>>
>>>
>>>
>>> RTH|    lat min|    ovl min|    lat avg|    lat max|    ovl max|
>>> overruns RTD|        245|        245|        459|       2168| 2168|
>>> 0
>>> RTD|        198|        198|        468|       2985|       2985|
>>> 0
>>> RTD|        294|        198|        455|       2538|       2985|
>>> 0
>>> RTD|        236|        198|        455|       2443|       2985|
>>> 0
>>> RTD|        240|        198|        455|       2851|       2985|
>>> 0
>>> RTD|        311|        198|        455|       2559|       2985|
>>> 0
>>> ^CRTD|        311|        198|        455|       2559|       2985|
>>> 0
>>> ^C^C
>>> linux-36hs:/usr/realtime/testsuite/kern/latency #
>>>
>>>
>>>
>>>
>>>
>>> linux-36hs:/usr/realtime/testsuite/kern/latency # dmesg
>>> [  311.385854] I-pipe: head domain RTAI registered.
>>> [  311.385861] RTAI[hal]: mounted. ISOL_CPUS_MASK: 0.
>>> [  311.385863] SYSINFO - # CPUs: 8, TIMER NAME: 'lapic', TIMER IRQ:
>>> 4353,
>>> TIMER FREQ: 6246289, CLOCK NAME: 'tsc', CLOCK FREQ: 3398151000, CPU
>>> FREQ:
>>> 3398151000, LINUX TIMER IRQ: 4353.
>>> [  311.394919] RTAI[malloc]: global heap size = 4194304 bytes, <BSD>.
>>> [  311.404474] , kstacks pool size = 524288 bytes.
>>> [  311.404477] RTAI[sched]: hard timer type/freq = lapic/6246289(Hz);
>>> timing: oneshot; linear timed lists.
>>> [  311.404478] RTAI[sched]: Linux timer freq = 1000 (Hz), TimeBase
>>> freq =
>>> 3398151000 hz.
>>> [  311.404479] RTAI[sched]: timer setup = 160 ns, resched latency = 0
>>> ns. [  313.153812] BUG: unable to handle kernel paging request at
>>> 00007ffc0b6f4520
>>> [  313.154290] IP: [<ffffffffa0581611>]
>>> handle_lxrt_request+0x131/0x7d0 [rtai_sched]
>>> [  313.155398] PGD 7cbf2b067 PUD 7cc186067 PMD 7cc187067 PTE
>>> 80000007cb080867
>>> [  313.156513] Oops: 0001 [#3] PREEMPT SMP
>>> [  313.157627] Modules linked in: rtai_sched(O+) rtai_malloc(PO)
>>> rtai_hal(O) fuse af_packet snd_hda_codec_hdmi snd_hda_codec_realtek
>>> snd_hda_codec_generic xfs libcrc32c x86_pkg_temp_thermal coretemp kvm
>>>  iTCO_wdt iTCO_vendor_support mxm_wmi snd_hda_intel
>>> snd_hda_controller crct10dif_pclmul snd_hda_codec crc32_pclmul
>>> ghash_clmulni_intel snd_hwdep snd_pcm aesni_intel aes_x86_64 lrw
>>> gf128mul glue_helper ablk_helper cryptd snd_timer e1000e snd serio_raw
>>> xhci_pci mei_me i2c_i801 ptp xhci_hcd mei pps_core soundcore shpchp
>>> lpc_ich mfd_core dm_mod btrfs xor raid6_pq crc32c_intel nouveau video
>>> i2c_algo_bit drm_kms_helper ttm drm wmi sg [last unloaded: rtai_hal] [
>>> 313.161364]
>>> CPU: 4 PID: 2360 Comm: calibrate Tainted: P      D    O
>>> 3.18.22-STRADM #11
>>> [  313.162649] Hardware name: ASUS All Series/X99-A II, BIOS 0801
>>> 06/28/2016
>>> [  313.163927] task: ffff8807cbcd6650 ti: ffff8807cc0a0000 task.ti:
>>> ffff8807cc0a0000 [  313.165209] RIP: 0010:[<ffffffffa0581611>]
>>> [<ffffffffa0581611>]
>>> handle_lxrt_request+0x131/0x7d0 [rtai_sched] [  313.166509] RSP:
>>> 0018:ffff8807cc0a3e78  EFLAGS: 00010206
>>> [  313.167819] RAX: ffff8807cc0a0000 RBX: 00007ffc0b6f4520 RCX:
>>> 0000000000000407
>>> [  313.169141] RDX: 0000000000000000 RSI: 00007ffc0b6f4520 RDI:
>>> 0000000000407818
>>> [  313.170472] RBP: ffff8807cc0a3ec8 R08: 00007ffc0b6f4f69 R09:
>>> 00007ffc00000001
>>> [  313.171794] R10: 00007ffc0b6f44e8 R11: 0000000000000206 R12:
>>> 0000000000000000
>>> [  313.173109] R13: 0000000000407818 R14: 0000000000000000 R15:
>>> 0000000000000000
>>> [  313.174419] FS:  00007fbabb2b8700(0000) GS:ffff88081fd00000(0000)
>>> knlGS:0000000000000000
>>> [  313.175726] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>> [  313.177028] CR2: 00007ffc0b6f4520 CR3: 00000007cbf2a000 CR4:
>>> 00000000003407e0
>>> [  313.178342] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
>>> 0000000000000000
>>> [  313.179655] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
>>> 0000000000000400
>>> [  313.180959] I-pipe domain Linux
>>> [  313.182245] Stack:
>>> [  313.183530]  00000000000002a6 ffff880700000000 0000000000000000
>>> ffff8807ec4aee60 [  313.184807]  00000000ec4aec00 ffff8807ec4aee48
>>> 00007ffc0b6f4520
>>> 0000000000000000
>>> [  313.186062]  0000000000407818 0000000000000000 ffff8807cc0a3f38
>>> ffffffffa0581ea0 [  313.187312] Call Trace: [  313.188563]
>>> [<ffffffffa0581ea0>] rtai_lxrt_invoke+0x1f0/0x900
>>> [rtai_sched]
>>> [  313.189819]  [<ffffffff810ea7c6>] ?
>>> __audit_syscall_exit+0x236/0x2e0
>>> [  313.191062]  [<ffffffffa0580295>] lxrt_intercept_syscall+0xc5/0x190
>>>  [rtai_sched]
>>> [  313.192307]  [<ffffffff816026d8>] ?
>>> int_check_syscall_exit_work+0x34/0x3d [  313.193546]
>>> [<ffffffff811003a9>]
>>> __ipipe_notify_syscall+0x19/0x20
>>> [  313.194748]  [<ffffffff8160234e>] pipeline_syscall+0xa/0x17
>>> [  313.195908] Code: 89 04 24 31 c0 41 ff 52 08 48 83 c4 30 5b 41 5c
>>> 41
>>> 5d
>>> 41 5e 5d c3 48 c7 c7 b8 a6 58 a0 e8 08 c4 12 00 48 c7 c0 da ff ff ff
>>> eb 96
>>> <4c> 8b 2e 8d 91 18 fc ff ff 83 fa 20 4c 89 e8 0f 87 85 00 00 00
>>> [  313.197113] RIP  [<ffffffffa0581611>]
>>> handle_lxrt_request+0x131/0x7d0 [rtai_sched]
>>> [  313.198282]  RSP <ffff8807cc0a3e78>
>>> [  313.199422] CR2: 00007ffc0b6f4520
>>> [  313.200555] ---[ end trace c6ad8498e3b44420 ]---
>>> [  313.200606] USERMODE CHECK: ERROR.
>>> [  313.200608] USERMODE CHECK PROVIDED (ns): KernelLatency 0,
>>> UserLatency
>>> 0.
>>> [  313.200609] FINAL CALIBRATION SUMMARY (ns): KernelLatency 0,
>>> UserLatency 0.
>>> [  321.189508]
>>>
>>>
>>>
>>>
>>> CPU USE SUMMARY
>>> [  321.189512] # 0 -> 79722
>>> [  321.189513] # 1 -> 0
>>> [  321.189514] # 2 -> 0
>>> [  321.189514] # 3 -> 0
>>> [  321.189515] # 4 -> 0
>>> [  321.189516] # 5 -> 0
>>> [  321.189516] # 6 -> 0
>>> [  321.189517] # 7 -> 0
>>> [  321.189518] END OF CPU USE SUMMARY
>>>
>>>
>>>
>>>
>>> [  326.447805] RTAI[sched]: unloaded (forced hard/soft/hard
>>> transitions:
>>> traps 0, syscalls 0). [  326.453228] RTAI[malloc]: unloaded. [
>>> 326.458443] I-pipe: head domain RTAI unregistered.
>>> [  326.458450] RTAI[hal]: unmounted.
>>> linux-36hs:/usr/realtime/testsuite/kern/latency #
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>
>


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