Date: Tue, 1 Oct 2013 21:23:06 +1000 From: John Marshall <john.marshall@riverwillow.com.au> To: freebsd-stable@freebsd.org Subject: Re: 9.2-RC4 amd64 panic: vm_page_unwire Message-ID: <20131001112305.GA8408@rwpc15.gfn.riverwillow.net.au> In-Reply-To: <20130930095507.GD2813@rwpc15.gfn.riverwillow.net.au> References: <20130927000728.GB19167@rwpc15.gfn.riverwillow.net.au> <20130927081221.GK41229@kib.kiev.ua> <20130928023046.GA1428@rwpc15.gfn.riverwillow.net.au> <CAPjTQNF8R8_krK6P0QRmbd9crLZM%2B2uwKZwWUxOFkdANPGC1hw@mail.gmail.com> <20130929212104.GB1370@rwpc15.gfn.riverwillow.net.au> <CAPjTQNGt9BY8pNC=y4om6v3bEfGmGTFZDj57DbjZi=nUzYu=iA@mail.gmail.com> <20130930095507.GD2813@rwpc15.gfn.riverwillow.net.au>
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--VbJkn9YxBvnuCH5J Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, 30 Sep 2013, 19:55 +1000, John Marshall wrote: > Another data point: both systems on which I have seen this panic have > the ipmi driver compiled in. ipmi makes the BMC's watchdog timer > available to the system. So, I decided to revert my source tree to a clean releng/9.2 (9.2-RELEASE) and recompile without the ipmi driver (so there goes the watchdog timer too), and see how the system behaved. I was able to stop and start ntpd without mishap. If ntpd was not running, the system would reboot cleanly. If ntpd was running, the system would panic during shutdown - vm_page_unwire - while stopping ntpd. I decided to switch my source tree back to releng/9.1 (9.1-RELEASE-p7), rebuild, and test. Booted into the 9.1 kernel in single-user, installed the 9.1 world, make delete-old, decided to skip mergemaster (why??!!); reboot; and it wouldn't :-/ menuset-loadinitial not found Consoles: internal video/keyboard BIOS drive C: is disk0 BIOS drive D: is disk1 BIOS 565kB/3136000kB available memory FreeBSD/x86 bootstrap loader, Revision 1.1 (root@ozsrv04.riverwillow.net.au, Tue Oct 1 18:04:14 AEST 2013) Can't work out which disk we are booting from. Guessed BIOS device 0xffffffff not found by probes, defaulting to disk0: panic: free: guard1 fail @ 0xbf492150 from /kits/src/sys/boot/i386/loader/ ../../common/module.c:1004 That should keep me entertained until the morning (this is a remote system). --=20 John Marshall --VbJkn9YxBvnuCH5J Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.21 (FreeBSD) iEYEARECAAYFAlJKsJkACgkQw/tAaKKahKIDWACgtfm0As41MVGx2RzXdCPZdFw4 pI8AnRHooJ5A0p97cUyPFSl/qLnI/la4 =6uz7 -----END PGP SIGNATURE----- --VbJkn9YxBvnuCH5J--
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