Re: Livelock limit engaged?

["Thomas E. Spanjaard" <tgen@xxxxxxxxxxxxx>]

Dave Hayes wrote:
> A dmesg is attached. Thanks in advance. 
> Aug  7 13:11:20 myhost kernel: Copyright (c) 1992-2003 The FreeBSD Project.
> Aug  7 13:11:20 myhost kernel: Copyright (c) 1979, 1980, 1983, 1986, 1988, 
> 1989, 1991, 1992, 1993, 1994
> Aug  7 13:11:20 myhost kernel: The Regents of the University of California. 
> All rights reserved.
> Aug  7 13:11:20 myhost kernel: DragonFly 1.8.2-RELEASE #1: Sat May 12 18:48:24 
> PDT 2007
> Aug  7 13:11:20 myhost kernel: root@cddev.foo.com:/usr/obj/usr/src/sys/DFCD
> Aug  7 13:11:20 myhost kernel: TSC clock: 2131176296 Hz, i8254 clock: 1193166 
> Hz
> Aug  7 13:11:20 myhost kernel: CPU: Intel(R) Core(TM)2 CPU          6420  @ 
> 2.13GHz (2131.21-MHz 686-class CPU)
> Aug  7 13:11:20 myhost kernel: Origin = "GenuineIntel"  Id = 0x6f6  Stepping = 
> 6
> Aug  7 13:11:20 myhost kernel: Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,M
> CE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,
> SS,HTT,TM,PBE>
> Aug  7 13:11:20 myhost kernel: Features2=0xe3bd<SSE3,RSVD2,MON,DS_CPL,VMX,EST,T
> M2,SSSE3,CX16,XTPR,RSVD15>
> Aug  7 13:11:20 myhost kernel: Hyperthreading: 2 logical CPUs
> Aug  7 13:11:20 myhost kernel: real memory  = 2137686016 (2087584K bytes)
> Aug  7 13:11:20 myhost kernel: avail memory = 1998196736 (1951364K bytes)
> Aug  7 13:11:20 myhost kernel: Preloaded elf kernel "/kernel" at 0xc4791000.
> Aug  7 13:11:20 myhost kernel: Preloaded mfs_root "/mfsroot" at 0xc4791384.
> Aug  7 13:11:20 myhost kernel: Preloaded elf module "/modules/acpi.ko" at 
> 0xc47913c4.
> Aug  7 13:11:20 myhost kernel: Pentium Pro MTRR support enabled
> Aug  7 13:11:20 myhost kernel: md0: Preloaded image </mfsroot> 67107840 bytes 
> at 0xc0733938
> Aug  7 13:11:20 myhost kernel: md1: Malloc disk
> Aug  7 13:11:20 myhost kernel: ACPI: RSDP @ 0x0xfe020/0x0014 (v  0 INTEL )
> Aug  7 13:11:20 myhost kernel: ACPI: RSDT @ 0x0x7f6fd038/0x0050 (v  1 INTEL  
> D946GZIS 0x0000002F      0x01000013)
> Aug  7 13:11:20 myhost kernel: ACPI: FACP @ 0x0x7f6fc000/0x0074 (v  1 INTEL  
> D946GZIS 0x0000002F MSFT 0x01000013)
> Aug  7 13:11:20 myhost kernel: ACPI: DSDT @ 0x0x7f6f7000/0x44D7 (v  1 INTEL  
> D946GZIS 0x0000002F MSFT 0x01000013)
> Aug  7 13:11:20 myhost kernel: ACPI: FACS @ 0x0x7f6a8000/0x0040
> Aug  7 13:11:20 myhost kernel: ACPI: APIC @ 0x0x7f6f6000/0x0078 (v  1 INTEL  
> D946GZIS 0x0000002F MSFT 0x01000013)
> Aug  7 13:11:20 myhost kernel: ACPI: WDDT @ 0x0x7f6f5000/0x0040 (v  1 INTEL  
> D946GZIS 0x0000002F MSFT 0x01000013)
> Aug  7 13:11:20 myhost kernel: ppc0: FIFO with 16/16/8 bytes threshold
> Aug  7 13:11:20 myhost kernel: ppbus0: <Parallel port bus> on ppc0
> Aug  7 13:11:20 myhost kernel: plip0: <PLIP network interface> on ppbus0
> Aug  7 13:11:20 myhost kernel: lpt0: <Printer> on ppbus0
> Aug  7 13:11:20 myhost kernel: lpt0: Interrupt-driven port
> Aug  7 13:11:20 myhost kernel: ppi0: <Parallel I/O> on ppbus0
> Aug  7 13:11:20 myhost kernel: ata2-slave: ATAPI identify retries exceeded
> Aug  7 13:11:20 myhost kernel: intr 11 at 50001 > 50000 hz, livelocked limit 
> engaged!
> Aug  7 13:11:20 myhost kernel: acpi_cpu: throttling enabled, 8 steps (100% to 
> 12.5%), currently 100.0%
> Aug  7 13:11:20 myhost kernel: acd0: DVD-ROM <TEAC DVD-ROM DV-28E-C> at 
> ata0-slave PIO4
> Aug  7 13:11:20 myhost kernel: acd1: DVD-R <SONY DVD RW AW-G170S> at 
> ata2-master PIO4
> Aug  7 13:11:20 myhost kernel: twed0: <Unit 0, TwinStor, Normal> on twe0
> Aug  7 13:11:20 myhost kernel: twed0: 381553MB (781420720 sectors)
> Aug  7 13:11:20 myhost kernel: intr 11 at 7580 < 20000 hz, livelock removed
> Aug  7 13:11:20 myhost kernel: intr 11 at 50001 > 50000 hz, livelocked limit 
> engaged!
> Aug  7 13:11:20 myhost kernel: Mounting root from ufs:md0c
> Aug  7 13:11:20 myhost kernel: cd0 at ata0 bus 0 target 1 lun 0
> Aug  7 13:11:20 myhost kernel: cd0: <TEAC DVD-ROM DV-28E-C D.4A> Removable 
> CD-ROM SCSI-0 device
> Aug  7 13:11:20 myhost kernel: cd0: 16.000MB/s transfers
> Aug  7 13:11:20 myhost kernel: cd0: cd present [221814 x 2048 byte records]
> Aug  7 13:11:20 myhost kernel: cd1 at ata2 bus 0 target 0 lun 0
> Aug  7 13:11:20 myhost kernel: cd1: <SONY DVD RW AW-G170S 1.72> Removable 
> CD-ROM SCSI-0 device
> Aug  7 13:11:20 myhost kernel: cd1: 16.000MB/s transfers
> Aug  7 13:11:20 myhost kernel: cd1: Attempt to query device size failed: NOT 
> READY, Medium not present
> Aug  7 13:11:20 myhost kernel: intr 11 at 7641 < 20000 hz, livelock removed

There seems to be a large part missing from that dmesg. Could you post 
the entire dmesg? I'm particularly interested in which device has 
interrupt 11.

Cheers,
--
        Thomas E. Spanjaard
        tgen@netphreax.net

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