Date: Tue, 14 Feb 2012 11:41:53 -0500 From: Arnaud Lacombe <lacombar@gmail.com> To: freebsd-stable <freebsd-stable@freebsd.org> Subject: Complete hang on 9.0-RELEASE Message-ID: <CACqU3MUefo4mG3GdZnj6kxxFx4H_M3-NLys8pCKptqNU4r_ywA@mail.gmail.com>
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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:
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@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
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=0x40e31d<SSE3,DTES64,MON,DS_CPL,TM2,SSSE3,CX16,xTPR,PDCM,MOVBE>
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.
regards,
- Arnaud
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