On Tue, Apr 25, 2006 at 09:19:06PM +0900, Daichi GOTO wrote: > It is my pleasure and honor to announce the availability of > the unionfs patchset-11. > > Patchset-11: > For 7-current > http://people.freebsd.org/~daichi/unionfs/unionfs-p11.diff > > For 6.x > http://people.freebsd.org/~daichi/unionfs/unionfs6-p11.diff > > Changes in unionfs-p11.diff > - Changed a few implementations around the lock/unlock > mechanism. Because of this, you can use both the unionfs > and the nullfs together without LK_CANRECURSE. > - Fixed a bug that sometimes does not unlock if it cannot > create shadow file. I still get a panic immediately upon use: KDB: stack backtrace: vfs_badlock(cdef7540,ee22b9c4,c07a60e0,cdef7540,0) at vfs_badlock+0x76 assert_vop_locked(cdef7540,c0765a3d,220,cdef7540,d12ed380) at assert_vop_locked+0x60 VOP_OPEN_APV(c077acc0,ee22ba1c,d0456c28,0,c68a2510) at VOP_OPEN_APV+0x87 union_open(ee22ba74,c0765a3d,ee22bbfc,47ec,cdf1a690) at union_open+0xa2 VOP_OPEN_APV(c077b6a0,ee22ba74,c07a5f60,cdf1a690,1) at VOP_OPEN_APV+0x94 exec_check_permissions(ee22bba8,0,c073c75f,143,d1921000) at exec_check_permissions+0x107 kern_execve(c68a2510,ee22bc60,0,bfbfe910,bfbfea0c,e87b9000,e87b9000,e87b9038,e87b94e9,e87f9000,3fb17,4,39) at kern_execve+0x214 execve(c68a2510,ee22bd04,c,ee22bd38,3) at execve+0x52 syscall(3b,3b,3b,bfbfe90c,bfbfecc7) at syscall+0x163 Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (59, FreeBSD ELF32, execve), eip = 0x280d493b, esp = 0xbfbfe37c, ebp = 0xbfbfe828 --- VOP_OPEN: 0xcdef7540 is not locked but should be db> show lockedvnods Locked vnodes 0xd0456bd0: tag ufs, type VREG usecount 1, writecount 0, refcount 4 mountedhere 0 flags () v_object 0xcf9c1960 ref 0 pages 5 lock type ufs: EXCL (count 1) by thread 0xc68a2510 (pid 5593)#0 0xc053248e at lockmgr+0x573 #1 0xc059f9d4 at vop_stdlock+0x32 #2 0xc071541a at VOP_LOCK_APV+0x76 #3 0xc0681146 at ffs_lock+0x19 #4 0xc071541a at VOP_LOCK_APV+0x76 #5 0xc04ff967 at union_lock+0xda #6 0xc071541a at VOP_LOCK_APV+0x76 #7 0xc05b793a at vn_lock+0x67 #8 0xc05ab84b at vget+0x77 #9 0xc04fab14 at union_nodeget+0x682 #10 0xc04fd98a at union_lookup+0x5e6 #11 0xc0712034 at VOP_LOOKUP_APV+0x76 #12 0xc05a1588 at lookup+0x343 #13 0xc05a21f3 at namei+0x330 #14 0xc0522983 at kern_execve+0x1e4 #15 0xc05236ee at execve+0x52 #16 0xc06fc295 at syscall+0x163 #17 0xc06e5fdf at Xint0x80_syscall+0x1f ino 2805716, on dev da0s1e 0xcdf1a690: tag unionfs, type VREG usecount 1, writecount 0, refcount 1 mountedhere 0 flags (VV_TEXT) v_object 0xcf9544b0 ref 0 pages 5 lock type ufs: EXCL (count 1) by thread 0xc68a2510 (pid 5593)#0 0xc053248e at lockmgr+0x573 #1 0xc059f9d4 at vop_stdlock+0x32 #2 0xc071541a at VOP_LOCK_APV+0x76 #3 0xc0681146 at ffs_lock+0x19 #4 0xc071541a at VOP_LOCK_APV+0x76 #5 0xc04ff967 at union_lock+0xda #6 0xc071541a at VOP_LOCK_APV+0x76 #7 0xc05b793a at vn_lock+0x67 #8 0xc05ab84b at vget+0x77 #9 0xc04fab14 at union_nodeget+0x682 #10 0xc04fd98a at union_lookup+0x5e6 #11 0xc0712034 at VOP_LOOKUP_APV+0x76 #12 0xc05a1588 at lookup+0x343 #13 0xc05a21f3 at namei+0x330 #14 0xc0522983 at kern_execve+0x1e4 #15 0xc05236ee at execve+0x52 #16 0xc06fc295 at syscall+0x163 #17 0xc06e5fdf at Xint0x80_syscall+0x1f union_vp=0xcdf1a690, uppervp=0xd0456bd0, lowervp=0xcdef7540 union: upper 0xd0456bd0: tag ufs, type VREG usecount 1, writecount 0, refcount 4 mountedhere 0 flags () v_object 0xcf9c1960 ref 0 pages 5 lock type ufs: EXCL (count 1) by thread 0xc68a2510 (pid 5593)#0 0xc053248e at lockmgr+0x573 #1 0xc059f9d4 at vop_stdlock+0x32 #2 0xc071541a at VOP_LOCK_APV+0x76 #3 0xc0681146 at ffs_lock+0x19 #4 0xc071541a at VOP_LOCK_APV+0x76 #5 0xc04ff967 at union_lock+0xda #6 0xc071541a at VOP_LOCK_APV+0x76 #7 0xc05b793a at vn_lock+0x67 #8 0xc05ab84b at vget+0x77 #9 0xc04fab14 at union_nodeget+0x682 #10 0xc04fd98a at union_lookup+0x5e6 #11 0xc0712034 at VOP_LOOKUP_APV+0x76 #12 0xc05a1588 at lookup+0x343 #13 0xc05a21f3 at namei+0x330 #14 0xc0522983 at kern_execve+0x1e4 #15 0xc05236ee at execve+0x52 #16 0xc06fc295 at syscall+0x163 #17 0xc06e5fdf at Xint0x80_syscall+0x1f ino 2805716, on dev da0s1e union: lower 0xcdef7540: tag null, type VREG usecount 1, writecount 0, refcount 1 mountedhere 0 flags () v_object 0xcf9544b0 ref 0 pages 5 #0 0xc053248e at lockmgr+0x573 #1 0xc059f9d4 at vop_stdlock+0x32 #2 0xc071541a at VOP_LOCK_APV+0x76 #3 0xc0681146 at ffs_lock+0x19 #4 0xc071541a at VOP_LOCK_APV+0x76 #5 0xc05b793a at vn_lock+0x67 #6 0xc05ab84b at vget+0x77 #7 0xc059c93c at cache_lookup+0xe7 #8 0xc059d28f at vfs_cache_lookup+0xad #9 0xc0712034 at VOP_LOOKUP_APV+0x76 #10 0xc04f50a1 at null_lookup+0x6c #11 0xc0712034 at VOP_LOOKUP_APV+0x76 #12 0xc04fd762 at union_lookup+0x3be #13 0xc0712034 at VOP_LOOKUP_APV+0x76 #14 0xc05a1588 at lookup+0x343 #15 0xc05a21f3 at namei+0x330 #16 0xc0522983 at kern_execve+0x1e4 #17 0xc05236ee at execve+0x52 vp=0xcdef7540, lowervp=0xcdef73f0 db> db> show allpcpu Current CPU: 1 cpuid = 0 curthread = 0xc63caa20: pid 13 "idle: cpu0" curpcb = 0xea408d90 fpcurthread = none idlethread = 0xc63caa20: pid 13 "idle: cpu0" APIC ID = 0 currentldt = 0x50 spin locks held: cpuid = 1 curthread = 0xc68a2510: pid 5593 "chroot" curpcb = 0xee22bd90 fpcurthread = none idlethread = 0xc63ca870: pid 12 "idle: cpu1" APIC ID = 1 currentldt = 0x50 spin locks held: cpuid = 2 curthread = 0xc63ca6c0: pid 11 "idle: cpu2" curpcb = 0xea402d90 fpcurthread = none idlethread = 0xc63ca6c0: pid 11 "idle: cpu2" APIC ID = 2 currentldt = 0x50 spin locks held: exclusive spin mutex sio r = 0 (0xc080f588) locked _at_ dev/sio/sio.c:1390 cpuid = 3 curthread = 0xc63cabd0: pid 14 "swi4: clock sio" curpcb = 0xea40bd90 fpcurthread = none idlethread = 0xc63ca510: pid 10 "idle: cpu3" APIC ID = 3 currentldt = 0x50 spin locks held: db> Kris
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