On 01/04/15 19:55, Carlos Gustavo Ramirez Rodriguez wrote:
> Hello DEVs, can anyone help me?
>
> Ian Campbell pointed me that maybe you could help me, here is the link
> to the last e-mail line that started this problem fixing:
> http://lists.xenproject.org/archives/html/xen-users/2015-04/msg00009.html
>
> A brief summary of my current problems after XEN installation:
>
> First Problem: XL "Anything", be it INFO, TOP, UPTIME, whatever, returns:
>
> "
> xc: error: Could not obtain handle on privileged command interface (2
> = No such file or directory): Internal error
> libxl: error: libxl.c:109:libxl_ctx_alloc: cannot open libxc handle:
> No such file or directory
> cannot init xl context
> "

You do not have /proc/xen/privcmd available in your environment.  Mount
xenfs

(note to self - dust off my patch which makes that error message more
useful)

>
> Second Problem:
> My boot.log is showing:
>
> "
> [ [1;31mFAILED [0m] Failed to start Load Kernel Modules.
> See "systemctl status systemd-modules-load.service" for details.
> "
>

What extra information do you get by following the instruction?

> Third Problem:
> Today doing an apt-get update and apt-get dist-upgrade to see if there
> was any major fix on stuff... and probably I am with a Regression in
> hands:
>
> "
> Error found when loading /etc/profile:
> /etc/profile.d/cedilla-brazil.sh: linha 21: [: n?mero excessivo de
> argumentos
>
> As a result the session will not be configured correctly
> You should fix the problem as soon as feasible.
> "
>
> Also trying to run "sudo su -" on terminal I get a message saying I
> have too much arguments for (su) but since it appears related to this
> problem above, I consider both the same.

I don't see how this could plausibly be a Xen issue.

>
> ***I have already sent an e-mail to the Ubuntu mailing list about this
> problem...
>
> Fourth Problem:
> I am receiving KERNEL OOPS messages saying my #4 processor is pausing:
> "
> NMI watchdog: BUG: soft lockup - CPU#4 stuck for 23s! [irq/19-b43:1082]
> "
> that is a strip from syslog, showing that message:
> "
> Apr  1 15:01:34 carlos kernel: [ 1829.176231]  [<ffffffff817c5cf5>]
> __mutex_lock_slowpath+0x95/0x100
> Apr  1 15:01:34 carlos kernel: [ 1829.176233]  [<ffffffff817c5d83>]
> mutex_lock+0x23/0x40
> Apr  1 15:01:34 carlos kernel: [ 1829.176235]  [<ffffffffc0df47f3>]
> b43_periodic_work_handler+0x33/0x190 [b43]
> Apr  1 15:01:34 carlos kernel: [ 1829.176237]  [<ffffffff8108eb48>]
> process_one_work+0x158/0x430
> Apr  1 15:01:34 carlos kernel: [ 1829.176238]  [<ffffffff8108f5db>]
> worker_thread+0x5b/0x530
> Apr  1 15:01:34 carlos kernel: [ 1829.176239]  [<ffffffff8108f580>] ?
> rescuer_thread+0x3a0/0x3a0
> Apr  1 15:01:34 carlos kernel: [ 1829.176241]  [<ffffffff81094679>]
> kthread+0xc9/0xe0
> Apr  1 15:01:34 carlos kernel: [ 1829.176243]  [<ffffffff810945b0>] ?
> kthread_create_on_node+0x1c0/0x1c0
> Apr  1 15:01:34 carlos kernel: [ 1829.176244]  [<ffffffff817c8198>]
> ret_from_fork+0x58/0x90
> Apr  1 15:01:34 carlos kernel: [ 1829.176246]  [<ffffffff810945b0>] ?
> kthread_create_on_node+0x1c0/0x1c0
> Apr  1 15:01:36 carlos thermald[910]: Dropped below poll threshold
> Apr  1 15:01:36 carlos thermald[910]: thd_trip_cdev_state_reset
> Apr  1 15:01:36 carlos thermald[910]: thd_trip_cdev_state_reset
> Apr  1 15:01:36 carlos thermald[910]: thd_trip_cdev_state_reset index
> 5:Processor
> Apr  1 15:01:36 carlos thermald[910]: thd_trip_cdev_state_reset index
> 13:intel_powerclamp
> Apr  1 15:01:36 carlos thermald[910]: thd_trip_cdev_state_reset index
> 14:rapl_controller
> Apr  1 15:01:36 carlos thermald[910]: thd_trip_cdev_state_reset
> Apr  1 15:01:36 carlos thermald[910]: thd_trip_cdev_state_reset index
> 5:Processor
> Apr  1 15:01:36 carlos thermald[910]: thd_trip_cdev_state_reset index
> 13:intel_powerclamp
> Apr  1 15:01:36 carlos thermald[910]: thd_trip_cdev_state_reset index
> 14:rapl_controller
> Apr  1 15:01:40 carlos thermald[910]: Read set point 0
> Apr  1 15:01:40 carlos thermald[910]: Set : 94000, 74000, 5, 0, 0
> Apr  1 15:01:42 carlos kernel: [ 1837.163940] NMI watchdog: BUG: soft
> lockup - CPU#4 stuck for 22s! [irq/19-b43:1082]
> Apr  1 15:01:42 carlos kernel: [ 1837.163944] Modules linked in:
> rfcomm bnep nls_iso8859_1 arc4 b43 mac80211 cfg80211
> snd_hda_codec_hdmi ssb eeepc_wmi asus_wmi sparse_keymap
> snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel
> snd_hda_controller intel_rapl iosf_mbi snd_hda_codec
> x86_pkg_temp_thermal intel_powerclamp snd_hwdep coretemp snd_pcm
> crct10dif_pclmul crc32_pclmul ghash_clmulni_intel uvcvideo aesni_intel
> snd_seq_midi videobuf2_vmalloc snd_seq_midi_event btusb aes_x86_64
> videobuf2_memops videobuf2_core lrw snd_rawmidi gf128mul v4l2_common
> glue_helper ablk_helper nouveau bluetooth snd_seq cryptd videodev
> cypress_m8 media serio_raw joydev snd_seq_device i915 usbserial
> snd_timer mxm_wmi bcma lpc_ich ttm drm_kms_helper snd drm mei_me
> soundcore mei i2c_algo_bit video intel_smartconnect ie31200_edac wmi
> shpchp edac_core mac_hid xen_pciback xen_netback xen_blkback
> xen_gntalloc xen_gntdev xen_evtchn parport_pc ppdev lp parport autofs4
> btrfs hid_generic usbhid hid raid10 raid456 async_raid6_recov
> async_memcpy async_pq async_xor async_tx xor raid6_pq e1000e raid1
> psmouse ptp r8169 mii raid0 pps_core ahci multipath libahci linear
> Apr  1 15:01:42 carlos kernel: [ 1837.164002] CPU: 4 PID: 1082 Comm:
> irq/19-b43 Tainted: G             L 3.19.0-10-generic #10-Ubuntu
> Apr  1 15:01:42 carlos kernel: [ 1837.164004] Hardware name: System
> manufacturer System Product Name/P8Z77-V DELUXE, BIOS 2104 08/13/2013
> Apr  1 15:01:42 carlos kernel: [ 1837.164005] task: ffff8808018809d0
> ti: ffff880802c88000 task.ti: ffff880802c88000
> Apr  1 15:01:42 carlos kernel: [ 1837.164006] RIP:
> e030:[<ffffffff8101e1b6>]  [<ffffffff8101e1b6>] native_read_tsc+0x6/0x20
> Apr  1 15:01:42 carlos kernel: [ 1837.164011] RSP:
> e02b:ffff880802c8bd00  EFLAGS: 00000246
> Apr  1 15:01:42 carlos kernel: [ 1837.164012] RAX: 00000000a08f0862
> RBX: 00000000a08ef87e RCX: 00000000a08f082d
> Apr  1 15:01:42 carlos kernel: [ 1837.164013] RDX: 00000000000005b2
> RSI: 0000000000000000 RDI: 0000000000001a6e
> Apr  1 15:01:42 carlos kernel: [ 1837.164013] RBP: ffff880802c8bd00
> R08: 0000000000000000 R09: 0000000025ae8d40
> Apr  1 15:01:42 carlos kernel: [ 1837.164014] R10: ffff88080d317520
> R11: ffffea001f6f6880 R12: 0000000000001a6e
> Apr  1 15:01:42 carlos kernel: [ 1837.164015] R13: 0000000000000004
> R14: ffff8807e5d1f700 R15: ffff8807ffacb780
> Apr  1 15:01:42 carlos kernel: [ 1837.164018] FS: 
> 0000000000000000(0000) GS:ffff88080d300000(0000) knlGS:ffff88080d300000
> Apr  1 15:01:42 carlos kernel: [ 1837.164019] CS:  e033 DS: 0000 ES:
> 0000 CR0: 0000000080050033
> Apr  1 15:01:42 carlos kernel: [ 1837.164020] CR2: 00007fc0598b2000
> CR3: 0000000001c13000 CR4: 0000000000042660
> Apr  1 15:01:42 carlos kernel: [ 1837.164021] Stack:
> Apr  1 15:01:42 carlos kernel: [ 1837.164022]  ffff880802c8bd28
> ffffffff813c17bb 0000000000000005 000000000000008a
> Apr  1 15:01:42 carlos kernel: [ 1837.164023]  ffff88079f729240
> ffff880802c8bd38 ffffffff813c16fb ffff880802c8bda8
> Apr  1 15:01:42 carlos kernel: [ 1837.164025]  ffffffffc0e223e7
> ffffffffc0e47ea0 0000010000000000 ffffffffc0e47ea0
> Apr  1 15:01:42 carlos kernel: [ 1837.164026] Call Trace:
> Apr  1 15:01:42 carlos kernel: [ 1837.164031]  [<ffffffff813c17bb>]
> delay_tsc+0x3b/0x80
> Apr  1 15:01:42 carlos kernel: [ 1837.164032]  [<ffffffff813c16fb>]
> __const_udelay+0x2b/0x30
> Apr  1 15:01:42 carlos kernel: [ 1837.164038]  [<ffffffffc0e223e7>]
> b43_dma_rx+0xb7/0x3e0 [b43]
> Apr  1 15:01:42 carlos kernel: [ 1837.164042]  [<ffffffff810135ea>] ?
> __switch_to+0x15a/0x5f0
> Apr  1 15:01:42 carlos kernel: [ 1837.164044]  [<ffffffff810ce2e0>] ?
> irq_finalize_oneshot.part.30+0x170/0x170
> Apr  1 15:01:42 carlos kernel: [ 1837.164047]  [<ffffffffc0df56ed>]
> b43_interrupt_thread_handler+0x3dd/0x660 [b43]
> Apr  1 15:01:42 carlos kernel: [ 1837.164049]  [<ffffffff817c337c>] ?
> __schedule+0x39c/0x8e0
> Apr  1 15:01:42 carlos kernel: [ 1837.164051]  [<ffffffff810ce300>]
> irq_thread_fn+0x20/0x50
> Apr  1 15:01:42 carlos kernel: [ 1837.164053]  [<ffffffff810ce2e0>] ?
> irq_finalize_oneshot.part.30+0x170/0x170
> Apr  1 15:01:42 carlos kernel: [ 1837.164054]  [<ffffffff810ce63f>]
> irq_thread+0x11f/0x150
> Apr  1 15:01:42 carlos kernel: [ 1837.164056]  [<ffffffff810ce3a0>] ?
> irq_forced_thread_fn+0x70/0x70
> Apr  1 15:01:42 carlos kernel: [ 1837.164058]  [<ffffffff810ce520>] ?
> irq_thread_check_affinity+0xd0/0xd0
> Apr  1 15:01:42 carlos kernel: [ 1837.164060]  [<ffffffff81094679>]
> kthread+0xc9/0xe0
> Apr  1 15:01:42 carlos kernel: [ 1837.164062]  [<ffffffff810945b0>] ?
> kthread_create_on_node+0x1c0/0x1c0
> Apr  1 15:01:42 carlos kernel: [ 1837.164064]  [<ffffffff817c8198>]
> ret_from_fork+0x58/0x90
> Apr  1 15:01:42 carlos kernel: [ 1837.164065]  [<ffffffff810945b0>] ?
> kthread_create_on_node+0x1c0/0x1c0
> "
>

b43 (whatever it is) appears to be mad and is polling while in an rx
interrupt handler.  It also appears as if your CPU is too hot and is
being thermally throttled.

~Andrew
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