misc/120528: degrades to i/o nonresponsive

Jesper Dalberg jdalberg at gmail.com
Mon Feb 11 10:10:01 UTC 2008


>Number:         120528
>Category:       misc
>Synopsis:       degrades to i/o nonresponsive
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Feb 11 10:10:01 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Jesper Dalberg
>Release:        7.0 RC1
>Organization:
>Environment:
FreeBSD xxxxxxxx 7.0-RC1 FreeBSD 7.0-RC1 #0: Mon Dec 24 12:18:24 UTC 2007     root at logan.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386

>Description:
The box runs rtorrent and after a few days of low-med traffic it becomes unable to move traffic in or out. It is pingable, but cant move trafic, so you cant SSH in, for instance.

The problem was there in 7.0b3 aswell. We didnt notice on 7.0b2.

FreeBSD 7.0-RC1 #0: Mon Dec 24 12:18:24 UTC 2007
    root at logan.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(R) CPU           E5335  @ 2.00GHz (2000.01-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x6f7  Stepping = 7
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x4e33d<SSE3,RSVD2,MON,DS_CPL,VMX,TM2,SSSE3,CX16,xTPR,PDCM,DCA>
  AMD Features=0x20000000<LM>
  AMD Features2=0x1<LAHF>
  Cores per package: 4
real memory  = 2145746944 (2046 MB)
avail memory = 2090229760 (1993 MB)
ACPI APIC Table: <HP     00000083>
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
 cpu2 (AP): APIC ID:  2
 cpu3 (AP): APIC ID:  3

bce0: <Broadcom NetXtreme II BCM5708 1000Base-T (B2)> mem 0xf8000000-0xf9ffffff irq 16 at device 0.0 on pci3
brgphy0: <BCM5708C 10/100/1000baseTX PHY> PHY 1 on miibus0

acd0: CDRW <HL-DT-STCD-RW/DVD DRIVE GCC-4244N/2.00> at ata0-master UDMA33
SMP: AP CPU #1 Launched!
SMP: AP CPU #3 Launched!
SMP: AP CPU #2 Launched!
da0 at ciss0 bus 0 target 0 lun 0
da0: <COMPAQ RAID 1  VOLUME OK> Fixed Direct Access SCSI-5 device 
da0: 135.168MB/s transfers
da0: 69973MB (143305920 512 byte sectors: 255H 32S/T 17562C)
da1 at ciss0 bus 0 target 1 lun 0
da1: <COMPAQ RAID 0  VOLUME OK> Fixed Direct Access SCSI-5 device 
da1: 135.168MB/s transfers
da1: 69973MB (143305920 512 byte sectors: 255H 32S/T 17562C)
da2 at ciss0 bus 0 target 2 lun 0
da2: <COMPAQ RAID 0  VOLUME OK> Fixed Direct Access SCSI-5 device 
da2: 135.168MB/s transfers
da2: 69973MB (143305920 512 byte sectors: 255H 32S/T 17562C)



>How-To-Repeat:
We can repeat by starting rtorrent on the machine and letting it run traffic for a few days.
>Fix:
We have to coldstart the box to fix.

>Release-Note:
>Audit-Trail:
>Unformatted:


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