Complete hang on 9.0-RELEASE
lacombar at gmail.com
Mon Feb 27 15:33:57 UTC 2012
On Tue, Feb 14, 2012 at 11:41 AM, Arnaud Lacombe <lacombar at gmail.com> wrote:
> Hi folks,
> For the records, I was running some tests yesterday on top of a
> 9.0-RELEASE, amd64, kernel when the box hanged. At the time of the
> hang, the box was running a process with about 2800 threads with heavy
> IPC between 1400 writers and 1400 readers. The box was in single user
> mode (/bin/sh coming from FreeBSD 7.4-STABLE). Here is the beginning
> of the dmesg:
This happened a second time, now with FreeBSD 8.2-RELEASE. Complete
machine hang. The machine was running about 4000 threads in a single
process, all the other condition are the same.
> Copyright (c) 1992-2012 The FreeBSD Project.
> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
> The Regents of the University of California. All rights reserved.
> FreeBSD is a registered trademark of The FreeBSD Foundation.
> FreeBSD 9.0-RELEASE #0: Tue Jan 3 07:46:30 UTC 2012
> root at farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64
> CPU: Intel(R) Atom(TM) CPU D510 @ 1.66GHz (1666.70-MHz K8-class CPU)
> Origin = "GenuineIntel" Id = 0x106ca Family = 6 Model = 1c Stepping = 10
> AMD Features=0x20000800<SYSCALL,LM>
> AMD Features2=0x1<LAHF>
> TSC: P-state invariant, performance statistics
> real memory = 2137587712 (2038 MB)
> avail memory = 2037841920 (1943 MB)
> Event timer "LAPIC" quality 400
> ACPI APIC Table: <070611 APIC1125>
> FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
> FreeBSD/SMP: 1 package(s) x 2 core(s) x 2 HTT threads
> cpu0 (BSP): APIC ID: 0
> cpu1 (AP/HT): APIC ID: 1
> cpu2 (AP): APIC ID: 2
> cpu3 (AP/HT): APIC ID: 3
> I will restart the test and see if this happens again.
> - Arnaud
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