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7.0-RC1 - ZFS + UFS + io activity show a deadlock

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From: Henri Hennebert <hlh@...>
To: <freebsd-stable@...>, <freebsd-current@...>
Subject: 7.0-RC1 - ZFS + UFS + io activity show a deadlock
Date: Sunday, January 27, 2008 - 9:47 am

Hello,

I encounter a deadlock while

1) cpio -p from a ZFS filesystem to a UFS filesystem

2) rsync from ZFS to ZFS

I was running with this patch:
http://people.freebsd.org/~pjd/patches/zgd_done.patch

Here are show alllocks + showpcpu + bt from serial console:

Henri
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Messages in current thread:
7.0-RC1 - ZFS + UFS + io activity show a deadlock, Henri Hennebert, (Sun Jan 27, 9:47 am)
Re: 7.0-RC1 - ZFS + UFS + io activity show a deadlock, Pawel Jakub Dawidek, (Fri Feb 1, 5:22 pm)
Re: 7.0-RC1 - ZFS + UFS + io activity show a deadlock, Henri Hennebert, (Fri Feb 1, 7:35 pm)
Re: 7.0-RC1 - ZFS + UFS + io activity show a deadlock, Henri Hennebert, (Sun Jan 27, 9:55 am)