Date: Wed, 20 Jan 2010 15:43:12 +0200 From: David Naylor <naylor.b.david@gmail.com> To: freebsd-current@freebsd.org Subject: stacked unionfs freeze and crash FreeBSD Message-ID: <201001201543.15818.naylor.b.david@gmail.com>
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--nextPart1543202.6aWtivkye5 Content-Type: multipart/mixed; boundary="Boundary-01=_whwVLStpy8/R2mZ" Content-Transfer-Encoding: 7bit --Boundary-01=_whwVLStpy8/R2mZ Content-Type: Text/Plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hi, The attached script, that uses stacked unionfs, causes FreeBSD-9 (cvsup=20 yesterday) to freeze and FreeBSD-8 (cvsup two days ago) to crash: =20 =46atal double fault rip-0xffffffff81e4c1 rsp=3D0xffffff80b133ef50 rbp=3D0xffffff80b133f150 cupid =3D 2; apic id =3D 02 panic: double fault cpuid =3D 2 uptime: 1h44m35s cannot dump. Device not defined or unavailable Both systems use the stock GENERIC kernel, i.e. -9 had full diagnostics bui= lt=20 in (and was run under VirtualBox) and -8 had no diagnostics (and was run=20 native). =20 A LOR is produces prior to freezing under -9 (quiet a time prior). See=20 kern/141950. =20 The script uses unionfs to build ports (in an attempt to create a tinderbox= =20 without the need to delete and/or extract packages). To use the script to: # mkdir /tmp/localbase /tmp/builddir # env LOCALBASE=3D/tmp/localbase BUILDDIR=3D/tmp/builddir ./ports-union-bui= lder.sh This will try build everything for x11/xorg. =20 Is it possible that VirtualBox is interfering in getting usable diagnostics= =20 for -9 and how can I setup a dump device for -8. Currently I have: # swapinfo Device 1K-blocks Used Avail Capacity /dev/ad4s1b 8388608 0 8388608 0% /dev/ad8s1b 8388608 0 8388608 0% Total 16777216 0 16777216 0% Any advice? Regards --Boundary-01=_whwVLStpy8/R2mZ-- --nextPart1543202.6aWtivkye5 Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.13 (FreeBSD) iEYEABECAAYFAktXCHMACgkQUaaFgP9pFrLhjACgigVuFYBZp2G4auW4hgL5l/ea DXcAn2R6SV+tSDfGXK6UepguNtovQ83Y =O0Hj -----END PGP SIGNATURE----- --nextPart1543202.6aWtivkye5--
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