Hi
I've been running into a weird issue, which its hard to get any information
on. We successfully setup a R710 system with Asterisk 1.4.22 / libpri 1.4.7,
utilizing a Digium TE121B Pci express card. However we are having some
stability issues and can't seem to trace it down to if it is a card/system
issue or our PRI vendor having a dirty line. I know some will say it is a
old version of asterisk, however this is the one that has been deployed as a
standard everywhere and our vendor supplied custom apps against it (not
relevant to PRI however).
Basically every once in a while ( arbitrarily throughout the day), the PRI
drops and the only way to get it back up is to reboot the system.
Looking at the dmesg logs we get:
wcte12xp0: Missed interrupt. Increasing latency to 4 ms in order to
compensate.
HDLC Receiver overrun on channel WCT1/0/24 (master=WCT1/0/24)
After searching some state that this could be a IRQ issue or a hardware card
issue, however it seems strange as everyone states that it is just a blib
and resets itself, not requiring a full hard reset of the entire system.
Also the card is on its own IRQ as in:
[trixbox proc]# more interrupts
CPU0 CPU1 CPU2 CPU3 CPU4 CPU5
CPU6 CPU7
0: 603 0 0 1471809 0 0
0 0 IO-APIC-edge timer
1: 0 0 0 3 0 0
0 0 IO-APIC-edge i8042
8: 0 0 0 0 0 0
3 0 IO-APIC-edge rtc
9: 0 0 0 0 0 0
0 0 IO-APIC-level acpi
12: 4 0 0 0 0 0
0 0 IO-APIC-edge i8042
50: 0 0 0 21 0 0
0 0 IO-APIC-level ehci_hcd:usb1
58: 0 0 0 50 0 0
0 0 IO-APIC-level ehci_hcd:usb2, uhci_hcd:usb5
66: 0 0 0 0 0 0
0 0 IO-APIC-level uhci_hcd:usb3
74: 0 0 0 0 0 0
0 0 IO-APIC-level uhci_hcd:usb4
82: 0 0 0 0 0 0
0 0 IO-APIC-level uhci_hcd:usb6
90: 0 0 0 0 0 8257
0 0 IO-APIC-level ioc0
98: 0 0 0 0 0 0
15072 0 IO-APIC-level ata_piix
138: 1415485 0 0 0 0 0
0 0 IO-APIC-level wcte12xp0
146: 2535 0 0 0 0 0
0 0 PCI-MSI-X eth0
154: 131 0 0 0 0 0
0 0 PCI-MSI-X eth0
162: 325 0 0 0 0 0
0 0 PCI-MSI-X eth0
170: 1036 0 0 0 0 0
0 0 PCI-MSI-X eth0
178: 108 0 0 0 0 0
0 0 PCI-MSI-X eth0
186: 814 0 0 0 0 0
0 0 PCI-MSI-X eth0
194: 134 0 0 0 0 0
0 0 PCI-MSI-X eth0
NMI: 0 0 0 0 0 0
0 0
LOC: 1471806 1471814 1471814 1471813 1471812 1471810
1471809 1471808
Thus we the next time we had the issue we ran a pri intense debug and
received this:
trixbox*CLI> pri intense debug span 1
Enabled EXTENSIVE debugging on span 1
[Feb 15 00:49:07] Sending Set Asynchronous Balanced Mode Extended
[Feb 15 00:49:07] > [ 00 01 7f ]
[Feb 15 00:49:07] > Unnumbered frame:
[Feb 15 00:49:07] > SAPI: 00 C/R: 0 EA: 0 > TEI: 000 EA: 1
[Feb 15 00:49:07] > M3: 3 P/F: 1 M2: 3 11: 3 [ SABME (set asynchronous
balanced mode extended) ] > 0 bytes of data
[Feb 15 00:49:08] Sending Set Asynchronous Balanced Mode Extended
[Feb 15 00:49:08] > [ 00 01 7f ]
[Feb 15 00:49:08] > Unnumbered frame:
[Feb 15 00:49:08] > SAPI: 00 C/R: 0 EA: 0> TEI: 000 EA: 1
[Feb 15 00:49:08] > M3: 3 P/F: 1 M2: 3 11: 3 [ SABME (set asynchronous
balanced mode extended) ] > 0 bytes of data
[Feb 15 00:49:09] Sending Set Asynchronous Balanced Mode Extended
[Feb 15 00:49:09] > [ 00 01 7f ]
[Feb 15 00:49:09] > Unnumbered frame:
[Feb 15 00:49:09] > SAPI: 00 C/R: 0 EA: 0 > TEI: 000 EA: 1
[Feb 15 00:49:09] > M3: 3 P/F: 1 M2: 3 11: 3 [ SABME (set asynchronous
balanced mode extended) ] > 0 bytes of data
[Feb 15 00:49:10] Sending Set Asynchronous Balanced Mode Extended
[Feb 15 00:49:10] > [ 00 01 7f ]
[Feb 15 00:49:10] > Unnumbered frame:
[Feb 15 00:49:10] > SAPI: 00 C/R: 0 EA: 0 > TEI: 000 EA: 1
[Feb 15 00:49:10] > M3: 3 P/F: 1 M2: 3 11: 3 [ SABME (set asynchronous
balanced mode extended) ] > 0 bytes of data
[Feb 15 00:49:11] Sending Set Asynchronous Balanced Mode Extended
This repeats endless.
The version of everything:
Asterisk 1.4.22-4
libpri version: 1.4.7
Does anyone have any suggestions?
Please let me know
Thanks
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