Re: Kernel Oops

It seem that the module rtai_hal.ko is not matching the hardware. Can 
you cross check with a different, highly numbered kernel?

Paolo

On 03/30/2016 09:35 AM, Bunjes Friedemann wrote:
> Hi,
>
> I am getting the following Kernel error when trying to run the 
> testsuite/kern/latency  on a freshly compiled 3.14.33 kernel.
>
> [   46.026872] I-pipe: high-resolution clock not working
> [   46.026872] I-pipe: head domain RTAI registered.
> [   46.026872] RTAI[hal]: compiled with gcc version 4.7.2 (Debian 
> 4.7.2-5) .
> [   46.026872] RTAI[hal]: mounted (IPIPE-NOTHREADS, IMMEDIATE 
> (INTERNAL IRQs DISPATCHED), ISOL_CPUS_MASK: 0).
> [   46.026872] SYSINFO: CPUs 1, LINUX APIC IRQ -1, TIM_FREQ 0, 
> CLK_FREQ 0, CPU_FREQ 0
> [   46.026872] RTAI_APIC_TIMER_IPI: RTAI DEFINED 33026, VECTOR 33027; 
> LINUX_APIC_TIMER_IPI: RTAI DEFINED 33025, VECTOR 33025
> [   46.026872] BUG: unable to handle kernel NULL pointer dereference 
> at 0000000000000028
> [   46.026872] IP: [<ffffffff810a662c>] ipipe_timer_name+0x12/0x17
> [   46.026872] PGD 0
> [   46.026872] Oops: 0000 [#1] SMP
> [   46.026872] Modules linked in: rtai_hal(O+) rfcomm bnep bluetooth 
> 6lowpan_iphc rfkill binfmt_misc nfsd auth_rpcgss oid_registry nfs_acl 
> nfs lockd fscache sunrpc loop hid_apple hid_generic usbhid hid 
> nvidia(PO) snd_hda_codec_realtek x86_pkg_temp_thermal 
> snd_hda_codec_generic thermal_sys coretemp crc32c_intel 
> ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep snd_pcm 
> snd_seq snd_timer aesni_intel aes_x86_64 snd_seq_device ablk_helper 
> drm snd soundcore cryptd lrw gf128mul glue_helper microcode psmouse 
> serio_raw evdev i2c_core shpchp pcspkr ext4 crc16 jbd2 mbcache sg 
> sd_mod sr_mod cdrom crc_t10dif crct10dif_common r8169 mii ahci libahci 
> libata scsi_mod xhci_hcd usbcore usb_common
> [   46.026872] CPU: 0 PID: 3332 Comm: insmod Tainted: P           O 
> 3.14.33rtai #1
> [   46.026872] Hardware name: Gigabyte Technology Co., Ltd. To be 
> filled by O.E.M./H110M-S2H-CF, BIOS F1 09/08/2015
> [   46.026872] task: ffff88026cfea8e0 ti: ffff8802625e8000 task.ti: 
> ffff8802625e8000
> [   46.026872] RIP: 0010:[<ffffffff810a662c>]  [<ffffffff810a662c>] 
> ipipe_timer_name+0x12/0x17
> [   46.026872] RSP: 0018:ffff8802625ebcf0  EFLAGS: 00010296
> [   46.026872] RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 
> ffff880275a00000
> [   46.026872] RDX: ffff880275a00000 RSI: 0000000000000200 RDI: 
> 0000000000000000
> [   46.026872] RBP: 0000000000000000 R08: 0000000000000002 R09: 
> 0000000000000000
> [   46.026872] R10: 0000000000000000 R11: 0000000000000000 R12: 
> 0000000000000000
> [   46.026872] R13: 000000000000362c R14: 0000000000000001 R15: 
> ffff8802625ebf08
> [   46.026872] FS:  00007f93f7268700(0000) GS:ffff880275a00000(0000) 
> knlGS:0000000000000000
> [   46.026872] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [   46.026872] CR2: 0000000000000028 CR3: 000000026aa9c000 CR4: 
> 00000000003407f0
> [   46.026872] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 
> 0000000000000000
> [   46.026872] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 
> 0000000000000400
> [   46.026872] I-pipe domain Linux
> [   46.026872] Stack:
> [   46.026872]  ffffffffa0e5fa0b ffff88026cfea8e0 ffffffff00000001 
> 0000000000000000
> [   46.026872]  0000000000000000 0000000000000000 000000009ac15d93 
> ffffffffa0e60c60
> [   46.026872]  00000000ffffffff ffffffffa0e5e2a3 0000000000000000 
> ffffffffa0e5f77b
> [   46.026872] Call Trace:
> [   46.026872]  [<ffffffffa0e5fa0b>] ? __rtai_hal_init+0x290/0x2e7 
> [rtai_hal]
> [   46.026872]  [<ffffffffa0e5e2a3>] ? rt_printk+0x83/0x83 [rtai_hal]
> [   46.026872]  [<ffffffffa0e5f77b>] ? ack_bad_irq+0x37/0x37 [rtai_hal]
> [   46.026872]  [<ffffffff810002bb>] ? do_one_initcall+0x78/0x101
> [   46.026872]  [<ffffffff8102f2d2>] ? change_page_attr_set+0x23/0x28
> [   46.026872]  [<ffffffff81054113>] ? 
> __blocking_notifier_call_chain+0x4f/0x5d
> [   46.026872]  [<ffffffff8108ccf8>] ? load_module+0x198d/0x1c6e
> [   46.026872]  [<ffffffff8108a4d8>] ? show_initstate+0x41/0x41
> [   46.026872]  [<ffffffff81348579>] ? page_fault+0x29/0x70
> [   46.026872]  [<ffffffff8108d069>] ? SyS_init_module+0x90/0x9b
> [   46.026872]  [<ffffffff8134d1b8>] ? system_call_fastpath+0x16/0x1b
> [   46.026872] Code: 00 00 48 c7 c0 00 28 09 00 48 8b 3c 02 48 85 ff 
> 74 06 48 8b 47 20 ff e0 c3 48 8b 15 5f 7c 5e 00 48 c7 c0 00 28 09 00 
> 48 8b 04 10 <48> 8b 40 28 c3 53 48 c7 c1 00 28 09 00 65 48 8b 04 25 e0 
> bd 00
> [   46.026872] RIP  [<ffffffff810a662c>] ipipe_timer_name+0x12/0x17
> [   46.026872]  RSP <ffff8802625ebcf0>
> [   46.026872] CR2: 0000000000000028
> [   46.026872] ---[ end trace 17d927cf08e1f42c ]---
>
>
> Sincerely,
>
> Friedemann
>
>
> -- 
> Dr. rer. nat. Friedemann Bunjes
> EDV Entwicklung und Koordination
> Hertie-Institut für Klinische Hirnforschung
> Zentrum für Neurologie
> Universitätsklinikum Tübingen
> Otfried-Müller-Str. 25
> 72076 Tübingen
> Tel. +49-7071-29-81999
> Fax +49-7071-29-25010
>
>
>
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