[Asterisk-Users] PRI HDLC abort on dchan

[Michael Welter]

Kevin P. Fleming wrote:
> Michael Welter wrote:
> 
>> Nov 15 20:09:15 NOTICE[27290]: chan_zap.c:7395 pri_dchannel: PRI got 
>> event: HDLC Abort (6) on Primary D-channel of span 1
>>
>> I ran top during that time, and there was no significant cpu usage.
> 
> 
> Probably interrupt starvation... are there any interrupts being shared, 
> or does your NIC driver take an especially long time to handle interrupts?
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> 
Thank you, Kevin.  Removing the ohci_hcd modules on 177 solved the problem.

[root at sys1a ~]# cat /proc/interrupts
            CPU0
   0: 3775022330    IO-APIC-edge  timer
   8:          0    IO-APIC-edge  rtc
   9:          0   IO-APIC-level  acpi
  14:         24    IO-APIC-edge  ide0
169:    5091470   IO-APIC-level  libata, 3w-xxxx
177:   37749599   IO-APIC-level  ohci_hcd, ohci_hcd, eth0
185:  101487948   IO-APIC-level  eth1
193: 3774814937   IO-APIC-level  t1xxp
NMI:    2726825
LOC: 3774551440
ERR:          0
MIS:          0

However:

eth0 isn't plugged into anything.  eth0 is assigned 192.168.2.4 while
eth1 is attached to the Internet with a public IP.  Both eth0 and eth1
are integrated into the motherboard.

There should be no activity on eth0, so I don't understand why eth0 is
getting interrupts and why there is a problem.  Here is lspci for bus #1:

01:00.0 USB Controller: Advanced Micro Devices [AMD] AMD-8111 USB (rev
0b) (prog-if 10 [OHCI])
         Subsystem: Advanced Micro Devices [AMD] AMD-8111 USB
         Flags: medium devsel, IRQ 177
         Memory at feafb000 (32-bit, non-prefetchable) [size=4K]

01:00.1 USB Controller: Advanced Micro Devices [AMD] AMD-8111 USB (rev
0b) (prog-if 10 [OHCI])
         Subsystem: Advanced Micro Devices [AMD] AMD-8111 USB
         Flags: medium devsel, IRQ 177
         Memory at feafc000 (32-bit, non-prefetchable) [size=4K]

01:00.2 USB Controller: Advanced Micro Devices [AMD]: Unknown device
7463 (rev 02) (prog-if 20 [EHCI])
         Subsystem: Advanced Micro Devices [AMD]: Unknown device 7463
         Flags: medium devsel, IRQ 177
         Memory at feafe400 (32-bit, non-prefetchable) [size=256]
         Memory at feafe000 (32-bit, non-prefetchable) [size=32]
         Capabilities: [80] Debug port
         Capabilities: [88] Power Management version 2

01:07.0 Network controller: Tiger Jet Network Inc. Tiger3XX Modem/ISDN
interface
         Subsystem: Unknown device 6159:0001
         Flags: bus master, medium devsel, latency 64, IRQ 193
         I/O ports at b800 [size=256]
         Memory at feafd000 (32-bit, non-prefetchable) [size=4K]
         Capabilities: [40] Power Management version 2

01:0a.0 RAID bus controller: 3ware Inc 3ware Inc 3ware 7xxx/8xxx-series
PATA/SATA-RAID (rev 01)
         Subsystem: 3ware Inc 3ware Inc 3ware 7xxx/8xxx-series
PATA/SATA-RAID
         Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 169
         I/O ports at bc00 [size=16]
         Memory at feafe800 (32-bit, non-prefetchable) [size=16]
         Memory at fe000000 (32-bit, non-prefetchable) [size=8M]
         Expansion ROM at fea80000 [disabled] [size=64K]
         Capabilities: [40] Power Management version 1

01:0b.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27)
(prog-if 00 [VGA])
         Subsystem: ATI Technologies Inc Rage XL
         Flags: bus master, stepping, medium devsel, latency 64, IRQ 11
         Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
         I/O ports at c800 [size=256]
         Memory at feaff000 (32-bit, non-prefetchable) [size=4K]
         Expansion ROM at feac0000 [disabled] [size=128K]
         Capabilities: [5c] Power Management version 2

01:0c.0 RAID bus controller: Silicon Image, Inc. (formerly CMD
Technology Inc) SiI 3114 [SATALink/SATARaid] Serial ATA Controller (rev 02)
         Subsystem: Silicon Image, Inc. (formerly CMD Technology Inc)
SiI 3114 SATARaid Controller
         Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 169
         I/O ports at cc00 [size=8]
         I/O ports at c480 [size=4]
         I/O ports at c400 [size=8]
         I/O ports at c080 [size=4]
         I/O ports at c000 [size=16]
         Memory at feafec00 (32-bit, non-prefetchable) [size=1K]
         Expansion ROM at fea00000 [disabled] [size=512K]
         Capabilities: [60] Power Management version 2

01:0d.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5705
Gigabit Ethernet (rev 03)
         Subsystem: Broadcom Corporation: Unknown device 1644
         Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 177
         Memory at fea90000 (64-bit, non-prefetchable) [size=64K]
         Expansion ROM at fe9e0000 [disabled] [size=128K]
         Capabilities: [48] Power Management version 2
         Capabilities: [50] Vital Product Data
         Capabilities: [58] Message Signalled Interrupts: 64bit+
Queue=0/3 Enable-

01:0e.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5705
Gigabit Ethernet (rev 03)
         Subsystem: Broadcom Corporation: Unknown device 1644
         Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 185
         Memory at feae0000 (64-bit, non-prefetchable) [size=64K]
         Expansion ROM at feaa0000 [disabled] [size=128K]
         Capabilities: [48] Power Management version 2
         Capabilities: [50] Vital Product Data
         Capabilities: [58] Message Signalled Interrupts: 64bit+
Queue=0/3 Enable-

Anyhow, problem solved and thank you.

-- 
Michael Welter
Telecom Matters Corp.
Denver, Colorado US
+1.303.414.4980
mike at TelecomMatters.net
www.TelecomMatters.net