Re: Rtai Digest, Vol 104, Issue 4

Francescodario Cuzzocrea <[email protected]>
Newsgroups gmane.linux.real-time.rtai
Message-ID <CADnVkj9KgyA-JUNkjgzjhBjReMcZdMDu_c=Z1PPQh32G+ZkR=A@mail.gmail.com> 
Can you please attach you kernel .config and you rtai_config ?
As a first attempt, try to boot with kernel boot parameter
lapic=notscdeadline ad watch the results

Il giorno lun 8 ago 2016 alle ore 09:22 <[email protected]> ha scritto:

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> Today's Topics:
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>    1. Strange Results by Switches Test (ChenPeng)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 8 Aug 2016 13:43:09 +0800 (CST)
> From: ChenPeng <[email protected]>
> To: [email protected]
> Subject: [Rtai] Strange Results by Switches Test
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset="gbk"
>
> Hi, sorry to bother you
> I am a beginner, and I met problems when I was running the ./run test
> located in /usr/realtime/testsuite/kern/switches/ and
> /usr/realtime/testsuite/user/switches/. I wonder is there anybody who has
> met the same problem too and if anyone has fixed it. Here goes the details:
> I patched RTAI 4.1 to ubuntu 14.04 with a kernel version 3.16
> . When I checked the performance as the manual indicated, it seems that
> the procedure in /usr/realtime/testsuite/kern/switches/  ran for one time,
> but it did not output the results in the console window but in the ring
> buffer, which reads as:
>
> *************************************************************************************************************************8
> kern  :info  : [  953.966160] I-pipe: head domain RTAI registered.
> kern  :info  : [  953.966164] RTAI[hal]: compiled with gcc version 4.8.4
> (Ubuntu 4.8.4-2ubuntu1~14.04.3) .
> kern  :info  : [  953.966198] RTAI[hal]: mounted (IPIPE-NOTHREADS,
> IMMEDIATE (INTERNAL IRQs DISPATCHED), ISOL_CPUS_MASK: 0).
> kern  :warn  : [  953.966200] SYSINFO: CPUs 2, LINUX APIC IRQ 4353,
> TIM_FREQ 6235989, CLK_FREQ 2294873000, CPU_FREQ 2294873000
> kern  :warn  : [  953.966201] RTAI_APIC_TIMER_IPI: RTAI DEFINED 4354,
> VECTOR 4355; LINUX_APIC_TIMER_IPI: RTAI DEFINED 4353, VECTOR 4353
> kern  :warn  : [  953.966203] TIMER NAME: lapic; VARIOUSLY FOUND APIC
> FREQs: 6235989, 6235989, 6235750
> kern  :info  : [  953.977572] RTAI[malloc]: global heap size = 2097152
> bytes, <BSD>.
> kern  :warn  : [  953.977593] , kstacks pool size = 524288 bytes.
> kern  :info  : [  953.977595] RTAI[sched]: hard timer type/freq =
> APIC/6235989(Hz); default timing: periodic; linear timed lists.
> kern  :info  : [  953.977597] RTAI[sched]: Linux timer freq = 250 (Hz),
> TimeBase freq = 2294873000 hz.
> kern  :info  : [  953.977598] RTAI[sched]: timer setup = 160 ns, resched
> latency = 3783 ns.
> kern  :warn  : [  954.001992]
> kern  :warn  : [  954.001992] Wait for it ...
> kern  :warn  : [  954.027045]
> kern  :warn  : [  954.027045]
> kern  :warn  : [  954.027045] FOR 10 TASKS: TIME 7 (ms), SUSP/RES SWITCHES
> 40000, SWITCH TIME (INCLUDING FULL FP SUPPORT) 193 (ns)
> kern  :warn  : [  954.027047]
> kern  :warn  : [  954.027047] FOR 10 TASKS: TIME 7 (ms), SEM SIG/WAIT
> SWITCHES 40000, SWITCH TIME (INCLUDING FULL FP SUPPORT) 189 (ns)
> kern  :warn  : [  954.027049]
> kern  :warn  : [  954.027049] FOR 10 TASKS: TIME 9 (ms), RPC/RCV-RET
> SWITCHES 40000, SWITCH TIME (INCLUDING FULL FP SUPPORT) 243 (ns)
> kern  :warn  : [  954.027049]
> kern  :warn  : [  954.067635]
> kern  :warn  : [  954.067635] CPU USE SUMMARY
> kern  :warn  : [  954.067638] # 0 -> 0
> kern  :warn  : [  954.067639] # 1 -> 60011
> kern  :warn  : [  954.067640] END OF CPU USE SUMMARY
> kern  :warn  : [  954.067640]
> kern  :warn  : [  954.081247] RTAI[malloc]: unloaded.
> kern  :info  : [  964.316406] RTAI[sched]: unloaded (forced hard/soft/hard
> transitions: traps 0, syscalls 0).
> kern  :info  : [  964.336140] I-pipe: head domain RTAI unregistered.
> kern  :info  : [  964.336184] RTAI[hal]: unmounted.
>
> *********************************************************************************************************************
> And the procedure in /usr/realtime/testsuite/user/switches/ has the same
> problem and reported alerts, and the result really confused a beginner :
> kern  :info  : [  599.667788] I-pipe: head domain RTAI registered.
> kern  :info  : [  599.667793] RTAI[hal]: compiled with gcc version 4.8.4
> (Ubuntu 4.8.4-2ubuntu1~14.04.3) .
> kern  :info  : [  599.667825] RTAI[hal]: mounted (IPIPE-NOTHREADS,
> IMMEDIATE (INTERNAL IRQs DISPATCHED), ISOL_CPUS_MASK: 0).
> kern  :warn  : [  599.667827] SYSINFO: CPUs 2, LINUX APIC IRQ 4353,
> TIM_FREQ 6235879, CLK_FREQ 2294758000, CPU_FREQ 2294758000
> kern  :warn  : [  599.667828] RTAI_APIC_TIMER_IPI: RTAI DEFINED 4354,
> VECTOR 4355; LINUX_APIC_TIMER_IPI: RTAI DEFINED 4353, VECTOR 4353
> kern  :warn  : [  599.667830] TIMER NAME: lapic; VARIOUSLY FOUND APIC
> FREQs: 6235879, 6235879, 6235750
> kern  :info  : [  599.680886] RTAI[malloc]: global heap size = 2097152
> bytes, <BSD>.
> kern  :warn  : [  599.680907] , kstacks pool size = 524288 bytes.
> kern  :info  : [  599.680909] RTAI[sched]: hard timer type/freq =
> APIC/6235879(Hz); default timing: periodic; linear timed lists.
> kern  :info  : [  599.680911] RTAI[sched]: Linux timer freq = 250 (Hz),
> TimeBase freq = 2294758000 hz.
> kern  :info  : [  599.680912] RTAI[sched]: timer setup = 160 ns, resched
> latency = 3783 ns.
> kern  :alert : [  599.702909] BUG: unable to handle kernel paging request
> at 00007fff67621040
> kern  :alert : [  599.703903] IP: [<ffffffffc072c856>]
> rtai_lxrt_invoke+0x496/0x1180 [rtai_sched]
> kern  :warn  : [  599.704871] PGD 1420ff067 PUD 13b4df067 PMD 142369067
> PTE 800000013cf11867
> kern  :warn  : [  599.705821] Oops: 0001 [#3] SMP
> kern  :warn  : [  599.706752] Modules linked in: rtai_msg(OE) rtai_sem(OE)
> rtai_sched(OE) rtai_hal(OE) nls_iso8859_1(E) uas(E) usb_storage(E)
> rfcomm(E) bnep(E) snd_hda_codec_hdmi(E) intel_rapl(E)
> x86_pkg_temp_thermal(E) intel_powerclamp(E) arc4(E) coretemp(E) iwlmvm(E)
> kvm(E) radeon(E) mac80211(E) snd_hda_codec_realtek(E)
> snd_hda_codec_generic(E) crct10dif_pclmul(E) crc32_pclmul(E)
> ghash_clmulni_intel(E) aesni_intel(E) aes_x86_64(E) lrw(E) gf128mul(E)
> glue_helper(E) i915(E) iwlwifi(E) ablk_helper(E) cryptd(E) joydev(E)
> snd_hda_intel(E) uvcvideo(E) snd_hda_controller(E) snd_hda_codec(E)
> snd_hwdep(E) ttm(E) drm_kms_helper(E) snd_pcm(E) serio_raw(E)
> snd_seq_midi(E) videobuf2_vmalloc(E) snd_seq_midi_event(E) rtsx_pci_ms(E)
> mei_me(E) lpc_ich(E) memstick(E) btusb(E) videobuf2_memops(E) drm(E) mei(E)
> bluetooth(E) cfg80211(E) videobuf2_core(E) snd_rawmidi(E) 6lowpan_iphc(E)
> v4l2_common(E) i2c_algo_bit(E) snd_seq(E) videodev(E) media(E)
> snd_seq_device(E) snd_timer(E) mac_hid(E) shpchp(E) parp
>  ort_pc(E) ppdev(E) lp(E) parport(E) snd(E) soundcore(E) hid_generic(E)
> usbhid(E) hid(E) rtsx_pci_sdmmc(E) ahci(E) libahci(E) r8169(E) mii(E)
> rtsx_pci(E) [last unloaded: rtai_hal]
> kern  :warn  : [  599.714231] CPU: 0 PID: 3163 Comm: switches Tainted: G
>     D    OE 3.16.0-rtai #1
> kern  :warn  : [  599.715312] Hardware name: LENOVO 80HR/ZHAOYANG E40-80,
> BIOS A8CN51WW(V3.04) 02/26/2016
> kern  :warn  : [  599.716371] task: ffff88006f22d080 ti: ffff88006f2ac000
> task.ti: ffff88006f2ac000
> kern  :warn  : [  599.717411] RIP: 0010:[<ffffffffc072c856>]
> [<ffffffffc072c856>] rtai_lxrt_invoke+0x496/0x1180 [rtai_sched]
> kern  :warn  : [  599.718442] RSP: 0018:ffff88006f2afef8  EFLAGS: 00010202
> kern  :warn  : [  599.719446] RAX: ffff88006f22d080 RBX: 0000000000000000
> RCX: 00007f6bac7a2709
> kern  :warn  : [  599.720428] RDX: 00000000000003ea RSI: 00007fff67621040
> RDI: 00000000003ea828
> kern  :warn  : [  599.721390] RBP: ffff88006f2aff50 R08: 0000000000000001
> R09: 00007fff67621040
> kern  :warn  : [  599.722344] R10: 0000000000000001 R11: 0000000000003202
> R12: 00007fff67621040
> kern  :warn  : [  599.723287] R13: 00000000003ea828 R14: 0000000000000000
> R15: 0000000000000000
> kern  :warn  : [  599.724214] FS:  00007f6bad0ae740(0000)
> GS:ffff88015ec00000(0000) knlGS:0000000000000000
> kern  :warn  : [  599.725142] CS:  0010 DS: 0000 ES: 0000 CR0:
> 000000008005003b
> kern  :warn  : [  599.726065] CR2: 00007fff67621040 CR3: 000000013b480000
> CR4: 00000000003407f0
> kern  :warn  : [  599.726991] DR0: 0000000000000000 DR1: 0000000000000000
> DR2: 0000000000000000
> kern  :warn  : [  599.727930] DR3: 0000000000000000 DR6: 00000000fffe0ff0
> DR7: 0000000000000400
> kern  :warn  : [  599.728848] I-pipe domain Linux
> kern  :warn  : [  599.729768] Stack:
> kern  :warn  : [  599.730672]  ffff88006f2aff24 ffff88006f2aff50
> ffffffff81175033 000000016f22d080
> kern  :warn  : [  599.731595]  ffff8801423e34e0 0000000100000000
> 00007fff67620fc0 0000000000400de0
> kern  :warn  : [  599.732520]  00007fff676211d0 0000000000000000
> 0000000000000000 ffff88006f2aff68
> kern  :warn  : [  599.733444] Call Trace:
> kern  :warn  : [  599.734369]  [<ffffffff81175033>] ?
> __mm_populate+0x113/0x130
> kern  :warn  : [  599.735298]  [<ffffffffc072b98d>]
> lxrt_intercept_syscall+0x8d/0x130 [rtai_sched]
> kern  :warn  : [  599.736236]  [<ffffffff81102367>]
> __ipipe_notify_syscall+0x17/0x30
> kern  :warn  : [  599.737167]  [<ffffffff81697f8e>]
> pipeline_syscall+0xa/0x17
> kern  :warn  : [  599.738097] Code: e2 ff 07 00 00 31 ff e8 41 78 00 00 e9
> 40 fe ff ff 48 c7 c7 c8 6d 73 c0 31 c0 e8 86 33 56 00 48 c7 c0 da ff ff ff
> e9 b1 fc ff ff <48> 8b 1e 8d 8a 18 fc ff ff 83 f9 20 48 89 d8 0f 87 aa 0c
> 00 00
> kern  :alert : [  599.740105] RIP  [<ffffffffc072c856>]
> rtai_lxrt_invoke+0x496/0x1180 [rtai_sched]
> kern  :warn  : [  599.741089]  RSP <ffff88006f2afef8>
> kern  :warn  : [  599.742058] CR2: 00007fff67621040
> kern  :warn  : [  599.743027] ---[ end trace e162702c7f8d1dd2 ]---
> kern  :warn  : [  599.760775] RTAI[malloc]: unloaded.
> kern  :info  : [  621.858186] RTAI[sched]: unloaded (forced hard/soft/hard
> transitions: traps 0, syscalls 0).
> kern  :info  : [  621.874042] I-pipe: head domain RTAI unregistered.
> kern  :info  : [  621.874089] RTAI[hal]: unmounted.
>
> **********************************************************************************************************
>
> Thank you very much for your patience to get here, and I will be more
> grateful if you can give me some instruction.
>
>
>                                           Kira
>
>                                    2016-08-08
>
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> End of Rtai Digest, Vol 104, Issue 4
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