[mythtv-users] ivtv: Not enough free buffers, stream 0

Roy Hooper rhooper at toybox.ca
Thu Oct 2 14:37:39 EDT 2003


I've been monitoring the frequency of not enough free buffers errors on 
my Hauppauge PVR-250 Myth box:

Oct  2 00:00:02 slinky kernel: ivtv: Not enough free buffers, stream 0
Oct  2 00:00:03 slinky last message repeated 17 times

And it seems that I only get them at back-to-back recording startup.  I 
will be posting to ivtv, but wondered if anyone else was seeing this.

Modules.conf is:
alias char-major-81-0   ivtv
options ivtv debug=1 mpg_buffers=90
add above ivtv msp3400 saa7115 tuner

My config is:

Linux version 2.4.21 (root at slinky) (gcc version 2.95.4 20011002 (Debian 
prerelease)) #1
AMD Athlon XP 1600+
K7S5A Pro
Ensoniq AudioPCI (SigmaTel STAC9721/23)
Onboard SiS 900 PCI Fast Ethernet
ATI Remote Wonder USB Remote
MSI nvidia Geforce4 MX440-SE

Main 13gb disk (OS, MySQL) on IDE channel 1, shared with DVD-ROM.
read test 18.55mb/s

Spool, LVM appended, Dual WDC WD1200JB drives.
read test 41.56mb/s

MySQL, MythFrontend, and MythBackend run on the same system, and the 
spool is local.

It should be noted that this problem happens even when no playback is 
happening.  I have also disabled the ATI TV Wonder VE as it was more 
hassle than it is worth. 

LSPCI/IRQ Breakdown:
00:02.2 USB Controller: Silicon Integrated Systems [SiS] SiS7001 USB 
Controller (rev 07) (prog-if 10 [OHCI])
        Subsystem: Silicon Integrated Systems [SiS] SiS7001 USB Controller
        Flags: bus master, medium devsel, latency 64, IRQ 3

00:03.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900 
10/100 Ethernet (rev 90)
        Subsystem: Silicon Integrated Systems [SiS] SiS900 10/100 
Ethernet Adapter
        Flags: bus master, medium devsel, latency 64, IRQ 3

00:0f.0 Multimedia video controller: Brooktree Corporation Bt878 Video 
Capture (rev 11)
        Subsystem: ATI Technologies Inc: Unknown device 0003
        Flags: bus master, medium devsel, latency 64, IRQ 3

00:0f.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture 
(rev 11)
        Subsystem: ATI Technologies Inc TV-Wonder/VE
        Flags: bus master, medium devsel, latency 64, IRQ 3

00:02.3 USB Controller: Silicon Integrated Systems [SiS] SiS7001 USB 
Controller (rev 07) (prog-if 10 [OHCI])
        Subsystem: Silicon Integrated Systems [SiS] SiS7001 USB Controller
        Flags: bus master, medium devsel, latency 64, IRQ 5

00:13.2 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 51) (prog-if 
20 [EHCI])
        Subsystem: VIA Technologies, Inc. (Wrong ID): Unknown device 1234
        Flags: bus master, medium devsel, latency 64, IRQ 10

00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] 
SiS7012 PCI Audio Accelerator (rev a0)
        Subsystem: C-Media Electronics Inc: Unknown device 0300
        Flags: bus master, medium devsel, latency 64, IRQ 10

00:0b.0 Multimedia video controller: Internext Compression Inc: Unknown 
device 0016 (rev 01)
        Subsystem: Hauppauge computer works Inc.: Unknown device 4009
        Flags: bus master, medium devsel, latency 64, IRQ 11

00:11.0 Multimedia audio controller: Ensoniq ES1371 [AudioPCI-97] (rev 06)
        Subsystem: Ensoniq Creative Sound Blaster AudioPCI64V, AudioPCI128
        Flags: bus master, slow devsel, latency 64, IRQ 11

00:13.0 USB Controller: VIA Technologies, Inc. USB (rev 50) (prog-if 00 
[UHCI])
        Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
        Flags: bus master, medium devsel, latency 64, IRQ 11

00:13.1 USB Controller: VIA Technologies, Inc. USB (rev 50) (prog-if 00 
[UHCI])
        Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
        Flags: bus master, medium devsel, latency 64, IRQ 11

01:00.0 VGA compatible controller: nVidia Corporation NV17 [GeForce4 MX 
440] (rev a3) (prog-if 00 [VGA])
        Subsystem: Micro-Star International Co., Ltd.: Unknown device 8783
        Flags: bus master, 66Mhz, medium devsel, latency 248, IRQ 11






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