Date: Sun, 3 Sep 2006 13:01:29 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Daichi GOTO <daichi@freebsd.org> Cc: freebsd-fs@freebsd.org, freebsd-hackers@freebsd.org, freebsd-current@freebsd.org, ozawa@ongs.co.jp, rodrigc@crodrigues.org Subject: Re: [ANN] unionfs patchset-16 release, it is ready for the merge Message-ID: <20060903170129.GA98917@xor.obsecurity.org> In-Reply-To: <44B74036.6060101@freebsd.org> References: <44B67340.1080405@freebsd.org> <44B74036.6060101@freebsd.org>
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--a8Wt8u1KmwUX3Y2C Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jul 14, 2006 at 03:56:54PM +0900, Daichi GOTO wrote: > Daichi GOTO wrote: > > Patchset-16: > > For 7-current > > http://people.freebsd.org/~daichi/unionfs/unionfs-p16.diff > >=20 > > For 6.x > > http://people.freebsd.org/~daichi/unionfs/unionfs6-p16.diff >=20 > I'm sorry, how silly of me. I updated miss edited things. > I updated correct things now. Please check it :) Dear Goto-san, The panic I was previously seeing (with chrooting into the unionfs) appears to be fixed, but after a bit of load I got the following locking assertion on a unionfs (default mount options) stacked over a nullfs mount of a local ufs filesystem: KDB: stack backtrace: vfs_badlock(c7203000,ec8d0934,c07c5940,c7203000,0,...) at vfs_badlock+0x76 assert_vop_locked(c7203000,c0781c51,1,1000,c7203000,...) at assert_vop_lock= ed+0x60 VOP_GETPAGES_APV(c07b2680,ec8d0980,c0774e5e,2a1,0,...) at VOP_GETPAGES_APV+= 0x8a vnode_pager_getpages(c756cd20,ec8d09c8,1,0,0,...) at vnode_pager_getpages+0= xbb vm_imgact_map_page(c756cd20,731c,0,8051000,7,...) at vm_imgact_map_page+0xb4 elf32_load_section(7000,804f000,1bf4,31c,3,...) at elf32_load_section+0x140 exec_elf32_imgact(ec8d0ba8,0,c07577ee,149,c90c6068,...) at exec_elf32_imgac= t+0x2c7 kern_execve(c54c9360,ec8d0c60,0,8226620,8226730,e6d06000,e6d06000,e6d06036,= e6d06516,e6d46000,3faea,8,3a) at kern_execve+0x428 execve(c54c9360,ec8d0d04,c,ec8d0d38,3,...) at execve+0x52 syscall(3b,3b,3b,2,8226730,...) at syscall+0x152 Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (59, FreeBSD ELF32, execve), eip =3D 0x2813f007, esp =3D 0xbfbf= d30c, ebp =3D 0xbfbfd338 --- VOP_GETPAGES: 0xc7203000 is not locked but should be KDB: enter: lock violation [thread pid 54852 tid 100210 ] Stopped at kdb_enter+0x32: leave The other locked vnodes are: db> show lockedvnods Locked vnodes 0xc861da80: tag ufs, type VREG usecount 1, writecount 0, refcount 2 mountedhere 0 flags () v_object 0xc84b0ac8 ref 0 pages 8 lock type ufs: EXCL (count 1) by thread 0xc54c9360 (pid 54852)#0 0xc05= 37384 at lockmgr+0x541 #1 0xc06950ce at ffs_lock+0x59 #2 0xc0730898 at VOP_LOCK_APV+0x76 #3 0xc05045db at unionfs_lock+0xda #4 0xc0730898 at VOP_LOCK_APV+0x76 #5 0xc05c7b22 at vn_lock+0x67 #6 0xc0511f5b at exec_elf32_imgact+0x219 #7 0xc05273e5 at kern_execve+0x428 #8 0xc052801e at execve+0x52 #9 0xc07161b3 at syscall+0x152 #10 0xc06fefef at Xint0x80_syscall+0x1f ino 1274323, on dev da0s1e 0xc861e3f0: tag unionfs, type VREG usecount 1, writecount 0, refcount 1 mountedhere 0 flags (VV_TEXT) v_object 0xc756cd20 ref 3 pages 8 lock type ufs: EXCL (count 1) by thread 0xc54c9360 (pid 54852)#0 0xc05= 37384 at lockmgr+0x541 #1 0xc06950ce at ffs_lock+0x59 #2 0xc0730898 at VOP_LOCK_APV+0x76 #3 0xc05045db at unionfs_lock+0xda #4 0xc0730898 at VOP_LOCK_APV+0x76 #5 0xc05c7b22 at vn_lock+0x67 #6 0xc0511f5b at exec_elf32_imgact+0x219 #7 0xc05273e5 at kern_execve+0x428 #8 0xc052801e at execve+0x52 #9 0xc07161b3 at syscall+0x152 #10 0xc06fefef at Xint0x80_syscall+0x1f unionfs_vp=3D0xc861e3f0, uppervp=3D0xc861da80, lowervp=3D0xc86c7690 unionfs opencnt: uppervp=3D0, lowervp=3D4 unionfs: upper 0xc861da80: tag ufs, type VREG usecount 1, writecount 0, refcount 2 mountedhere 0 flags () v_object 0xc84b0ac8 ref 0 pages 8 lock type ufs: EXCL (count 1) by thread 0xc54c9360 (pid 54852)#0 0xc05= 37384 at lockmgr+0x541 #1 0xc06950ce at ffs_lock+0x59 #2 0xc0730898 at VOP_LOCK_APV+0x76 #3 0xc05045db at unionfs_lock+0xda #4 0xc0730898 at VOP_LOCK_APV+0x76 #5 0xc05c7b22 at vn_lock+0x67 #6 0xc0511f5b at exec_elf32_imgact+0x219 #7 0xc05273e5 at kern_execve+0x428 #8 0xc052801e at execve+0x52 #9 0xc07161b3 at syscall+0x152 #10 0xc06fefef at Xint0x80_syscall+0x1f ino 1274323, on dev da0s1e unionfs: lower 0xc86c7690: tag null, type VREG usecount 1, writecount 0, refcount 1 mountedhere 0 flags () v_object 0xc756cd20 ref 3 pages 8 #0 0xc0537384 at lockmgr+0x541 #1 0xc06950ce at ffs_lock+0x59 #2 0xc0730898 at VOP_LOCK_APV+0x76 #3 0xc04f9da5 at null_lock+0xb6 #4 0xc0730898 at VOP_LOCK_APV+0x76 #5 0xc05c7b22 at vn_lock+0x67 #6 0xc0502c23 at unionfs_open+0x180 #7 0xc072e5eb at VOP_OPEN_APV+0x94 #8 0xc05265d7 at exec_check_permissions+0x107 #9 0xc05271d1 at kern_execve+0x214 #10 0xc052801e at execve+0x52 #11 0xc07161b3 at syscall+0x152 #12 0xc06fefef at Xint0x80_syscall+0x1f vp=3D0xc86c7690, lowervp=3D0xc7203000 db> Core is available if you need it. Kris --a8Wt8u1KmwUX3Y2C Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) iD8DBQFE+wppWry0BWjoQKURAjdcAJ0Xj3to+OQbXQ4LkPDZqREy7zGXgwCgzbv2 RUgqZeb9vicO9t9uOnNoy8M= =1tBt -----END PGP SIGNATURE----- --a8Wt8u1KmwUX3Y2C--
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