[mythtv] ivtv-fb kernel panic

Peter Buelow pete at putzin.net
Fri Nov 19 21:14:27 UTC 2004

Ouch, anyone seen this before? I get this when I load ivtv-fb and then 
restart X with a dual head config (using ivtvdev_drv.o). I have the 
newest Nvidia drivers installed and am wondering if that's the issue. I 
can provide the xorg.conf if needed. This is all running on FC2, 
2.6.10-rc1, and I'm trying to get myth to spit out on my PVR-350 
framebuffer. Anyone have any thoughts?

ivtv-osd: Framebuffer module loaded (attached to ivtv card id 0)
ivtv-osd: Framebuffer is at decoder-relative address 0x00510000 and has 
ivtv-osd: screen coords: [0 0] -> [720 480]
ivtv-osd: original global alpha = 208
ivtv-osd: current OSD state = 39
ivtv-osd: new global alpha = 208 (1 255 0)
ivtv-osd: framebuffer at 0xe1510000, mapped to 0xe3210000, size 1350k
ivtv-osd: mode is 720x480x32, linelength=2880
Console: switching to colour frame buffer device 90x30
ivtv-osd: fb0: iTVC15 TV out frame buffer device
Unable to handle kernel NULL pointer dereference<1>Unable to handle 
kernel NULL
pointer dereference at virtual address 00000000
 printing eip:
*pde = 1ce27067
*pte = 00000000
Oops: 0000 [#1]
Modules linked in: ivtv_fb udf bttv video_buf v4l2_common btcx_risc 
lirc_i2c snd
_pcm_oss lirc_dev nvsound forcedeth msp3400 saa7127 saa7115 tuner 
tveeprom ivtv
i2c_algo_bit i2c_core videodev snd_mixer_oss snd_intel8x0 snd_ac97_codec 
 snd_timer snd_page_alloc gameport snd_mpu401_uart snd_rawmidi 
snd_seq_device sn
d soundcore ipt_MASQUERADE iptable_nat ip_conntrack ip_tables parport_pc 
lp parp
ort autofs4 prism54 floppy sg nvidia md5 ipv6 xfs reiserfs dm_mod 
usb_storage us
blp ohci_hcd ehci_hcd button battery ac ext3 jbd sata_sil libata sd_mod 

CPU:    0
EIP:    0060:[<00000000>]    Tainted: P      VLI
EFLAGS: 00013246   (2.6.10-rc1)
EIP is at 0x0
eax: e0f34940   ebx: c034ca60   ecx: e0f34600   edx: c688bac4
esi: 00000000   edi: df63cc00   ebp: 00000720   esp: c688ba8c
ds: 007b   es: 007b   ss: 0068
Process X (pid: 14212, threadinfo=c688a000 task=d344aa40)
Stack: c01d2ce6 c688bab0 c011847e cd8ea92c c012dc14 c688bb80 00000000 
       c01100ff c688bad0 e10794a6 c644b01c c03ec854 e0f34940 c6880001 
       00000000 0000000e 0000000b df560400 c644b000 006013d5 00000099 
Call Trace:
 [<c01d2ce6>] bit_cursor+0x246/0x430
 [<c011847e>] __is_prefetch+0x6e/0x250
 [<c012dc14>] search_exception_tables+0x14/0x30
 [<c01100ff>] powernow_acpi_init+0x24f/0x320
 [<e10794a6>] _nv001847rm+0x26/0x2c [nvidia]
 [<e10a7faf>] _nv005639rm+0x3f/0x70 [nvidia]
 [<c01ced30>] fbcon_cursor+0x120/0x1d0
 [<c020bbdd>] hide_cursor+0x1d/0x30
 [<c020f034>] vt_console_print+0x2c4/0x2d0
 [<c0118660>] do_page_fault+0x0/0x5ae
 [<c0106231>] error_code+0x2d/0x38
 [<c020ed70>] vt_console_print+0x0/0x2d0
 [<c011dc62>] __call_console_drivers+0x42/0x50
 [<c011e0ea>] release_console_sem+0x4a/0xe0
 [<c011dfcc>] vprintk+0xfc/0x160
 [<c011dec7>] printk+0x17/0x20
 [<c011880a>] do_page_fault+0x1aa/0x5ae
 [<e107949d>] _nv001847rm+0x1d/0x2c [nvidia]
 [<e107949d>] _nv001847rm+0x1d/0x2c [nvidia]
 [<e10794a6>] _nv001847rm+0x26/0x2c [nvidia]
 [<e107949d>] _nv001847rm+0x1d/0x2c [nvidia]
 [<e10794a6>] _nv001847rm+0x26/0x2c [nvidia]
 [<e10794a6>] _nv001847rm+0x26/0x2c [nvidia]
 [<e11906fa>] _nv002154rm+0x9e/0xa8 [nvidia]
 [<e10a7faf>] _nv005639rm+0x3f/0x70 [nvidia]
 [<c0118660>] do_page_fault+0x0/0x5ae
 [<c0106231>] error_code+0x2d/0x38
 [<c01d2ce6>] bit_cursor+0x246/0x430
 [<e10a7827>] _nv005859rm+0x1b/0x44 [nvidia]
 [<c01ced30>] fbcon_cursor+0x120/0x1d0
 [<c01d0e12>] fbcon_blank+0xa2/0x180
 [<c020fe02>] do_unblank_screen+0x82/0x150
 [<c0207ad1>] complete_change_console+0x51/0xe0
 [<c02078a6>] vt_ioctl+0x19e6/0x1a80
 [<c016cf85>] dput+0x25/0x210
 [<c0163d1c>] link_path_walk+0xa5c/0xda0
 [<c01c1314>] copy_to_user+0x54/0x70
 [<c0119d1b>] recalc_task_prio+0x8b/0x180
 [<c0119e6a>] activate_task+0x5a/0x70
 [<c0205ec0>] vt_ioctl+0x0/0x1a80
 [<c0201444>] tty_ioctl+0x3c4/0x4e0
 [<c012d5db>] __rcu_process_callbacks+0x8b/0xd0
 [<c01681b6>] sys_ioctl+0x106/0x250
 [<c0139024>] irq_exit+0x34/0x40
 [<c0105fd5>] sysenter_past_esp+0x52/0x71
Code:  Bad EIP value.

[root at sylia X11]#

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