I'm running centos 5.2 2.6.18-128.1.1.el5, mythtv mythtv-0.21-203.el5
I'm getting system lockups that appear to be the interaction of my
two video capture cards. I'm running a PVR-350 and a LMLBT44. when
I'm running mythtv AND zoneminder, I get errors along the lines of:
Apr 23 21:44:59 glutton kernel: bttv0: OCERR @ 7a807014,bits: HSYNC
OFLOW FBUS FDSR OCERR* (which seem to be tied to video capture from
the PVR-350.
In /proc/interrupts I see:
0: 306846 0 IO-APIC-edge timer
1: 10 0 IO-APIC-edge i8042
8: 1 0 IO-APIC-edge rtc
9: 0 0 IO-APIC-level acpi
12: 471 0 IO-APIC-edge i8042
169: 1986 14619 IO-APIC-level ehci_hcd:usb1, eth0
177: 551 0 IO-APIC-level ohci_hcd:usb2, HDA Intel
185: 22482 33199 IO-APIC-level sata_nv
193: 419 15 IO-APIC-level sata_nv
201: 9 0 IO-APIC-level bttv0
209: 76360 84342 IO-APIC-level bttv1, ivtv0
217: 4 0 IO-APIC-level bttv2
225: 1 0 IO-APIC-level bttv3
NMI: 163 103
LOC: 306690 306645
Is it possibly bad that one of the channels of the lmlbt44 and the
ivtv0 (pvr-350) are on the same interrupt (and thus acusing lockups)?
I've dabbled to try to make them not use the same IRQ or change how
they load, but it doesn't seem to change anything or fix it.
current modprobe.conf:
alias eth0 forcedeth
alias scsi_hostadapter sata_nv
alias scsi_hostadapter1 usb-storage
remove snd-hda-intel { /usr/sbin/alsactl store 0 >/dev/null 2>&1 || :
; }; /sbin/modprobe -r --ignore-remove snd-hda-intel
alias char-major-81 videodev
alias char-major-81-0 ivtv
alias char-major-81-1 bttv
alias char-major-81-2 bttv
alias char-major-81-3 bttv
alias char-major-81-4 bttv
options ivtv enc_mpg_buffers=16 dec_mpg_buffers=4
options bttv card=118,118,118,118
install bttv /sbin/modprobe ivtv; /sbin/modprobe --ignore-install bttv
options ivtv-fb osd_compat=1
install ivtv /sbin/modprobe --ignore-install ivtv; /sbin/modprobe ivtv-fb
# for lircd
alias char-major-61 lirc_i2c
install lirc_i2c /sbin/modprobe ivtv; /sbin/modprobe --ignore-install lirc_i2c
alias snd-card-0 snd-hda-intel
options snd-card-0 index=0
Any ideas what could be making the system lock? Things seem
completely stable when zonemidner isn't running, and seem to be
(still not 100% confident) as stable with ZM but not myth. It's the
two together that look to be killing me.
Rick
Rick Steeves
http://www.sinister.net
"Life is like a sausage: The more you pack into it, the longer it gets"
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