[mythtv-users] 0.19, XvMC, and Prebuffer pause

[Richard Shaw]

Brian Wood wrote:

>
> On Mar 1, 2006, at 1:04 PM, Joe Silver wrote:
>
>> I never thought much about latency until today when I found this page 
>> on the wiki:
>> http://www.mythtv.org/wiki/index.php/PCI_Latency
>>
>> I found my IDE controller latency was set to zero, so I reset it to 
>> 32 (20hex).  I'm not at home to try playback right now, but I was 
>> wondering what others who are having this problem find for their 
>> IDE/SATA controller latency.  Maybe this could fix us up?!?!  I'll 
>> report back later tonight what I find out.
>>
>
> So far, with a very limited number of samples, the people who have 
> found their disk controllers set to zero have either been unable to 
> reset the latency value, or have not seen any positive results from 
> doing so.
>
> Only the machines which have drive controller latency set to 32 or 64 
> initially have had much luck in adjusting them.
>
> Again, this is from a *very* limited number of samples (6 to be exact) 
> so please report your results, positive or negative, as well as the 
> chipset your mobo is using (perhaps on the WiKi page ??)
>
> Thanks.
>
>------------------------------------------------------------------------
>
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>  
>
I have a similar issue with mine. nForce2 chipset using the IDE port. 
Default latency is 0, setpci has no effect. I'm getting really 
fustrated... I've been working on trying to get ATSC to work for over a 
month. I last tried not deinterlacing which should reduce the CPU usage 
but I'm still pegging it out when monitoring it with top via SSH. I also 
can not use xvmc without it locking up the whole system.Lately I've had 
the following problem...

Bad page state at free_hot_cold_page (in process 'mythfrontend', page 
c129f220)
flags:0x80000400 mapping:00000000 mapcount:0 count:0 (Tainted: PF   B)
Backtrace:
 [<c0141598>] bad_page+0x8c/0xc3     [<c0141e3f>] 
free_hot_cold_page+0x3a/0x117
 [<e2206476>] nv_vm_free_pages+0x9d/0xf7 [nvidia]     [<e220513a>] 
nv_free_pages+0x286/0x2a8 [nvidia]
 [<e20012ba>] _nv002097rm+0x4e/0x58 [nvidia]     [<e2001299>] 
_nv002097rm+0x2d/0x58 [nvidia]
 [<e212f8ab>] _nv004517rm+0x23/0x28 [nvidia]     [<e1fe1aaa>] 
_nv007899rm+0x9a/0xd4 [nvidia]
 [<e1feb1ca>] _nv001474rm+0x8e/0x9c [nvidia]     [<e212f801>] 
_nv004519rm+0x19/0x40 [nvidia]
 [<e1feafb2>] _nv001479rm+0x82/0x190 [nvidia]     [<e1feaff1>] 
_nv001479rm+0xc1/0x190 [nvidia]
 [<e1fe3c30>] _nv007916rm+0x40/0x5c [nvidia]     [<e2007a66>] 
rm_disable_interrupts+0x42/0x54 [nvidia]
 [<e1fea254>] _nv001492rm+0x13c/0x260 [nvidia]     [<e2206a6f>] 
os_acquire_sema+0x56/0x5f [nvidia]
 [<e200110a>] _nv002123rm+0x12/0x18 [nvidia]     [<e1fe599b>] 
_nv002944rm+0x33/0x9c [nvidia]
 [<e1fe59d1>] _nv002944rm+0x69/0x9c [nvidia]     [<e2008d0d>] 
_nv001447rm+0x3d/0x5e4 [nvidia]
 [<e2008ee3>] _nv001447rm+0x213/0x5e4 [nvidia]     [<c014b6fb>] 
unmap_page_range+0xe6/0x110
 [<e2007d73>] rm_ioctl+0x23/0x38 [nvidia]     [<c01e0de0>] 
copy_from_user+0x42/0x82
 [<e2203db1>] nv_kern_ioctl+0x2cf/0x353 [nvidia]     [<e2203ae2>] 
nv_kern_ioctl+0x0/0x353 [nvidia]
 [<c016c381>] do_ioctl+0x51/0x55     [<c016c477>] vfs_ioctl+0x50/0x198
 [<c0106edd>] do_syscall_trace+0x1ac/0x1c4     [<c016c61c>] 
sys_ioctl+0x5d/0x6d
 [<c0102e75>] syscall_call+0x7/0xb     [<c0104629>] 
do_alignment_check+0x73/0xacTrying to fix it up, but a reboot is needed
Bad page state at free_hot_cold_page (in process 'mythfrontend', page 
c111a1c0)
flags:0x80000400 mapping:00000000 mapcount:0 count:0 (Tainted: PF   B)
Backtrace:
 [<c0141598>] bad_page+0x8c/0xc3     [<c0141e3f>] 
free_hot_cold_page+0x3a/0x117
 [<c01e543e>] pci_bus_read_config_dword+0x61/0x6b     [<e2206476>] 
nv_vm_free_pages+0x9d/0xf7 [nvidia]
 [<e220513a>] nv_free_pages+0x286/0x2a8 [nvidia]     [<e20012ba>] 
_nv002097rm+0x4e/0x58 [nvidia]
 [<e2001299>] _nv002097rm+0x2d/0x58 [nvidia]     [<e212f8ab>] 
_nv004517rm+0x23/0x28 [nvidia]
 [<e1fe1aaa>] _nv007899rm+0x9a/0xd4 [nvidia]     [<e1feb1ca>] 
_nv001474rm+0x8e/0x9c [nvidia]
 [<e212f801>] _nv004519rm+0x19/0x40 [nvidia]     [<e1feafb2>] 
_nv001479rm+0x82/0x190 [nvidia]
 [<e1feaff1>] _nv001479rm+0xc1/0x190 [nvidia]     [<e1fe3c30>] 
_nv007916rm+0x40/0x5c [nvidia]
 [<e2007a66>] rm_disable_interrupts+0x42/0x54 [nvidia]     [<e1fea254>] 
_nv001492rm+0x13c/0x260 [nvidia]
 [<e2206a6f>] os_acquire_sema+0x56/0x5f [nvidia]     [<e200110a>] 
_nv002123rm+0x12/0x18 [nvidia]
 [<e1fe599b>] _nv002944rm+0x33/0x9c [nvidia]     [<e1fe59d1>] 
_nv002944rm+0x69/0x9c [nvidia]
 [<e2008d0d>] _nv001447rm+0x3d/0x5e4 [nvidia]     [<e2008ee3>] 
_nv001447rm+0x213/0x5e4 [nvidia]
 [<c014b6fb>] unmap_page_range+0xe6/0x110     [<e2007d73>] 
rm_ioctl+0x23/0x38 [nvidia]
 [<c01e0de0>] copy_from_user+0x42/0x82     [<e2203db1>] 
nv_kern_ioctl+0x2cf/0x353 [nvidia]
 [<e2203ae2>] nv_kern_ioctl+0x0/0x353 [nvidia]     [<c016c381>] 
do_ioctl+0x51/0x55
 [<c016c477>] vfs_ioctl+0x50/0x198     [<c0106edd>] 
do_syscall_trace+0x1ac/0x1c4 [<c016c61c>] sys_ioctl+0x5d/0x6d     
[<c0102e75>] syscall_call+0x7/0xb
 [<c0104629>] do_alignment_check+0x73/0xac
Trying to fix it up, but a reboot is needed


Any ideas?