Date: Sun, 12 Jul 2009 13:04:52 -0800 From: Mel Flynn <mel.flynn+fbsd.questions@mailing.thruhere.net> To: freebsd-questions@freebsd.org Subject: Re: dump hangs on 7.1 Message-ID: <200907121304.52880.mel.flynn%2Bfbsd.questions@mailing.thruhere.net> In-Reply-To: <200907122044359.SM01728@W500.Go2France.com> References: <200907122044359.SM01728@W500.Go2France.com>
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On Sunday 12 July 2009 11:03:00 Len Conrad wrote:
> >On Friday 10 July 2009 08:29:01 Len Conrad wrote:
> >> FreeBSD 7.1-RELEASE #0: Thu Jan 1 14:37:25 UTC 2009
> >> root@logan.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386
> >>
> >> CPU: Intel(R) Xeon(R) CPU E5420 @ 2.50GHz (2496.26-MHz
> >> 686-class CPU) Origin = "GenuineIntel" Id = 0x1067a Stepping = 10
> >> AMD Features=0x20100000<NX,LM>
> >> AMD Features2=0x1<LAHF>
> >> Cores per package: 4
> >> real memory = 3484745728 (3323 MB)
> >> avail memory = 3405537280 (3247 MB)
> >> ACPI APIC Table: <DELL PE_SC3 >
> >> 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
> >>
> >>
> >> /sbin/dump -0uanL -f - / | ssh dump_images@xxx.net dd
> >> of=/var/ftp/dump_images/mx1-root-test
> >>
> >> dump has completed only once. Several other dumps have all gotten under
> >> way, target file is created and increases until the hang.
> >>
> >> CTRL-C gets back to shell,eg:
> >>
> >> DUMP: Date of this level 0 dump: Fri Jul 10 10:25:33 2009
> >> DUMP: Date of last level 0 dump: the epoch
> >> DUMP: Dumping snapshot of /dev/da0s1d (/usr) to standard output
> >> DUMP: mapping (Pass I) [regular files]
> >> DUMP: mapping (Pass II) [directories]
> >> DUMP: estimated 1713942 tape blocks.
> >> DUMP: dumping (Pass III) [directories]
> >> DUMP: dumping (Pass IV) [regular files]
> >> ^C DUMP: Interrupt received.
> >> DUMP: Do you want to abort dump?: ("yes" or "no") Killed by signal 2.
> >> DUMP: Broken pipe
> >> DUMP: The ENTIRE dump is aborted.
> >>
> >> Hangs always in Pass IV
> >
> >What's the output ps -auwwx|grep dump at the time of the dump.
>
> when the dump hangs:
>
> ps auxww | grep dump
>
> root 61360 0.0 0.0 3128 1168 p0 I+ 1:47PM 0:00.06 /sbin/dump
> -0uanL -f - / (dump)
>
> root 61361 0.0 0.1 5560 2768 p0 I+ 1:47PM 0:03.65 ssh
> xxx@xxx.net dd of=/var/ftp/dump_images/mx1-root-test
>
> root 61364 0.0 0.0 3128 1528 p0 I+ 1:47PM 0:00.36 dump:
> /dev/da0s1a: pass 4: 92.66% done, finished in 0:00 at Sun Jul 12 13:47:52
> 2009 (dump)
procstat -k 61364 please?
Is the percentage always the same for the same disk?
If you kill dd on the other side, does dump notice it?
--
Mel
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