Date: Thu, 29 Oct 2009 03:55:39 +0900 From: Norikatsu Shigemura <nork@ninth-nine.com> To: Robert Noland <rnoland@FreeBSD.org> Cc: freebsd-current@FreeBSD.org Subject: Re: GPT boot with ZFS RAIDZ "ZFS: i/o error - all block copies unavailable" Message-ID: <20091029035539.945aa7fb.nork@ninth-nine.com> In-Reply-To: <1256685555.2315.9.camel@balrog.2hip.net> References: <op.u2dqyh1o4534sa@localhost> <1256517106.2502.205.camel@balrog.2hip.net> <op.u2ehpmzo4534sa@localhost> <1256571299.2502.219.camel@balrog.2hip.net> <20091028071734.e92e8e49.nork@ninth-nine.com> <1256685555.2315.9.camel@balrog.2hip.net>
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Hi rnoland. On Tue, 27 Oct 2009 18:19:15 -0500 Robert Noland <rnoland@FreeBSD.org> wrote: > > 2. reduce AVAIL < 10% with creating dummy file like ... > > $ dd if=/dev/zero of=$HOME/DUMMY.FILE bs=1m count=5632 > > 5632+0 records in > > 5632+0 records out > > 5905580032 bytes transferred in 49.822200 secs (118533104 bytes/sec) > > $ zpool list > > NAME SIZE USED AVAIL CAP HEALTH ALTROOT > > tank 59.5G 53.9G 5.61G 90% ONLINE - > > 3. cd /boot/; cp -pr kernel kernel.err > > In this time, if reboot, we can get boot time error. > > 4. rm $HOME/DUMMY.FILE, and reboot > > 5. boot kernel.err on new-loader. > > I can get "ZFS: gang block detected!" message and overrun:D. > Ok, so does it still boot? Or do you still get an error? After reboot: OK: boot kernel NG: boot kernel.err Sorry, kernel.err is ganged kernel. I should be called as kernel.gang.help
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