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From: John Baldwin <jhb@freebsd.org>
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Subject: Re: 7.0 dump hangs/deadlock on phenom 9600
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On Wednesday 02 April 2008 04:38:28 pm Jin Guojun wrote:
> cd /mnt
> dump -0f - /data | restore -rf -
>
> 7.0 will hang on phenom 9600 system with 1 WDC 250 GB SATA drive, 1 WDC
> PATA 10 GB drive, and 1 USB 120GB drive. CPU usage = 0%, and not sure if
> this is a deadlock. /mnt partition may be corrupted
> during the failure.
> Replace motherther board with a single core P4, and not problem at all.
>
> /mnt can be one of those disk drive, and /data can be any another dirve.
>
> 6.3 works fine on both phenom 9600 and P4 based systems.
>
> So, is this related to phenom TLB hardware bug, or this is 7.0 specific
> problem?

There is at least one signal-related hang with dump on 7.0 that is fixed in 
RELENG_7.

-- 
John Baldwin