I started to check the new ZFS version inside a VirtualBox machine. So far it works for me without crashes, but I got some observations worth mentioning. Here are the steps I made: 1. Installed 8.1-RELEASE (from minimal install CD) 2. Csup'ped sources to CURRENT (as of 14/12/2010) [note that I haven't used SVN repository] 3. Applied the patch in question. 4. Created a zpool raidz of two disks of old version 15. Also some usual tuning of ZFS in loader.conf was done as I am running 32 bit version with low amount of memory. "zfs_enable=YES" in rc.conf was added too. 4.1 Moved /usr/ports to ZFS to have some files on it. 5. Make buildworld, buildkernel, installkernel, installworld - all the canonical steps from the Handbook. 6. After reboot to final 9.0-CURRENT world I got a dmesg with some trace stack related to ZFS and also a rc.d script message about unrecognized command 'volinit' (see the text of it in attachment). 7. Nevertheless the system booted. Files 8. `zpool upgrade -a` worked all right and reported that now I have ZFS version 28 Overall I am pleasantly surprised how streamlined the whole process was. I am going to perform more tourturing of this VM later as well. Thanks for your work! Copyright (c) 1992-2010 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD 9.0-CURRENT #1: Thu Dec 16 02:53:13 MSK 2010 root_at_bsdtest.localnet:/usr/obj/usr/src/sys/GENERIC i386 WARNING: WITNESS option enabled, expect reduced performance. CPU: Intel(R) Core(TM)2 Duo CPU T7500 _at_ 2.20GHz (2171.85-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0x6fb Family = 6 Model = f Stepping = 11 Features=0x783fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE,SSE2> Features2=0x209<SSE3,MON,SSSE3> AMD Features=0x20100800<SYSCALL,NX,LM> AMD Features2=0x1<LAHF> TSC: P-state invariant real memory = 671023104 (639 MB) avail memory = 637427712 (607 MB) pnpbios: Bad PnP BIOS data checksum kbd1 at kbdmux0 acpi0: <VBOX VBOXXSDT> on motherboard acpi0: Power Button (fixed) acpi0: Sleep Button (fixed) Timecounter "ACPI-safe" frequency 3579545 Hz quality 850 acpi_timer0: <32-bit timer at 3.579545MHz> port 0x4008-0x400b on acpi0 pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0 pci0: <ACPI PCI bus> on pcib0 isab0: <PCI-ISA bridge> at device 1.0 on pci0 isa0: <ISA bus> on isab0 atapci0: <Intel PIIX4 UDMA33 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xd000-0xd00f at device 1.1 on pci0 ata0: <ATA channel 0> on atapci0 ata1: <ATA channel 1> on atapci0 vgapci0: <VGA-compatible display> mem 0xe0000000-0xe0ffffff irq 11 at device 2.0 on pci0 em0: <Intel(R) PRO/1000 Legacy Network Connection 1.0.3> port 0xd010-0xd017 mem 0xf0000000-0xf001ffff irq 10 at device 3.0 on pci0 em0: Ethernet address: 08:00:27:05:9b:9f pci0: <base peripheral> at device 4.0 (no driver attached) pci0: <multimedia, audio> at device 5.0 (no driver attached) ohci0: <OHCI (generic) USB controller> mem 0xf0804000-0xf0804fff irq 11 at device 6.0 on pci0 usbus0: <OHCI (generic) USB controller> on ohci0 pci0: <bridge> at device 7.0 (no driver attached) ehci0: <Intel 82801FB (ICH6) USB 2.0 controller> mem 0xf0805000-0xf0805fff irq 10 at device 11.0 on pci0 usbus1: EHCI version 1.0 usbus1: <Intel 82801FB (ICH6) USB 2.0 controller> on ehci0 mpt0: <LSILogic 1030 Ultra4 Adapter> port 0xd300-0xd3ff mem 0xf0820000-0xf083ffff,0xf0840000-0xf085ffff irq 9 at device 20.0 on pci0 mpt0: MPI Version=1.2.0.0 battery0: <ACPI Control Method Battery> on acpi0 acpi_acad0: <AC Adapter> on acpi0 atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 kbd0 at atkbd0 atkbd0: [GIANT-LOCKED] psm0: <PS/2 Mouse> irq 12 on atkbdc0 psm0: [GIANT-LOCKED] psm0: model IntelliMouse Explorer, device ID 4 attimer0: <AT timer> port 0x40-0x43,0x50-0x53 on acpi0 Timecounter "i8254" frequency 1193182 Hz quality 0 Event timer "i8254" frequency 1193182 Hz quality 100 pmtimer0 on isa0 orm0: <ISA Option ROMs> at iomem 0xc0000-0xc8fff,0xe2000-0xe2fff pnpid ORM0000 on isa0 sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 atrtc0: <AT realtime clock> at port 0x70 irq 8 on isa0 Event timer "RTC" frequency 32768 Hz quality 0 ppc0: parallel port not found. Timecounter "TSC" frequency 2171848610 Hz quality 800 Timecounters tick every 10.000 msec usbus0: 12Mbps Full Speed USB v1.0 usbus1: 480Mbps High Speed USB v2.0 ad0: 16384MB <VBOX HARDDISK 1.0> at ata0-master UDMA33 ugen0.1: <Apple> at usbus0 uhub0: <Apple OHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus0 ugen1.1: <Intel> at usbus1 uhub1: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus1 uhub0: 8 ports with 8 removable, self powered uhub1: 8 ports with 8 removable, self powered da0 at mpt0 bus 0 scbus0 target 0 lun 0 da0: <VBOX HARDDISK 1.0> Fixed Direct Access SCSI-5 device da0: 3.300MB/s transfers da0: Command Queueing enabled da0: 32768MB (67108864 512 byte sectors: 255H 63S/T 4177C) da1 at mpt0 bus 0 scbus0 target 1 lun 0 da1: <VBOX HARDDISK 1.0> Fixed Direct Access SCSI-5 device da1: 3.300MB/s transfers da1: Command Queueing enabled da1: 10240MB (20971520 512 byte sectors: 255H 63S/T 1305C) ata0: timeout waiting to issue command ata0: error issuing ATA PACKET command acd0: DVDROM <VBOX CD-ROM/1.0> at ata0-slave UDMA33 WARNING: WITNESS option enabled, expect reduced performance. Trying to mount root from ufs:/dev/ad0s1a [rw]... ZFS NOTICE: Prefetch is disabled by default on i386 -- to enable, add "vfs.zfs.prefetch_disable=0" to /boot/loader.conf. ZFS WARNING: Recommended minimum kmem_size is 512MB; expect unstable behavior. Consider tuning vm.kmem_size and vm.kmem_size_max in /boot/loader.conf. ZFS filesystem version 5 ZFS storage pool version 28 unrecognized command 'volinit' usage: zfs command args... <skipped usage info...> lock order reversal: 1st 0xc433fa30 db->db_mtx (db->db_mtx) _at_ /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c:2009 2nd 0xc435b32c dn->dn_mtx (dn->dn_mtx) _at_ /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/dnode.c:1174 KDB: stack backtrace: db_trace_self_wrapper(c0ce9121,6d2f7379,6c75646f,7a2f7365,2e2f7366,...) at db_trace_self_wrapper+0x26 kdb_backtrace(c08f756b,c0cec28f,c393f588,c393f4b8,d825a884,...) at kdb_backtrace+0x2a _witness_debugger(c0cec28f,c435b32c,c3ef0e9d,c393f4b8,c3ef0053,...) at _witness_debugger+0x25 witness_checkorder(c435b32c,9,c3ef0053,496,0,...) at witness_checkorder+0x839 _sx_xlock(c435b32c,0,c3ef0053,496,7fe,...) at _sx_xlock+0x85 dnode_rele(c435b28c,c433f930,c4180c00,d825a914,c3dfcf94,...) at dnode_rele+0x4d bpobj_close(c4180c60,0,0,c4180c00,c433f9f4,...) at bpobj_close+0x27 dsl_deadlist_close(c4180c20,c4180c00,c3ef714b,96,c433f9f4,...) at dsl_deadlist_close+0xa4 dsl_dataset_evict(c433f9f4,c4180c00,1,0,0,...) at dsl_dataset_evict+0x84 dbuf_evict_user(c433fa48,c3ee7b31,c3dbfe15,c433fa30,0,...) at dbuf_evict_user+0x4c dbuf_rele_and_unlock(c433f9f4,c3ee7b31,0,c42a2000,c42a2014,...) at dbuf_rele_and_unlock+0x1f4 dsl_pool_open(c40ee000,10f,0,c40ee1a4,246,...) at dsl_pool_open+0x203 spa_load(0,6,0,5,c3ee7ee0,...) at spa_load+0x634 spa_load_best(ffffffff,ffffffff,1,949,c0e47ce0,...) at spa_load_best+0x59 spa_open_common(c3b11ae0,0,c3ee938b,c40f7000,0,...) at spa_open_common+0x15e pool_status_check(c40f7000,2,0,12,0,...) at pool_status_check+0x2c zfsdev_ioctl(c3cdc800,d5985a12,c40f7000,0,c40f6000,...) at zfsdev_ioctl+0x238 devfs_ioctl_f(c3d10af0,d5985a12,c40f7000,c3976e80,c40f6000,...) at devfs_ioctl_f+0x10b kern_ioctl(c40f6000,3,d5985a12,c40f7000,125acec,...) at kern_ioctl+0x20d ioctl(c40f6000,d825acec,d825ad28,c0ceabb6,0,...) at ioctl+0x134 syscallenter(c40f6000,d825ace4,d825ace4,0,0,...) at syscallenter+0x263 syscall(d825ad28) at syscall+0x34 Xint0x80_syscall() at Xint0x80_syscall+0x21 --- syscall (54, FreeBSD ELF32, ioctl), eip = 0x28239cb3, esp = 0xbfbfcdfc, ebp = 0xbfbfce38 --- lock order reversal: 1st 0xc434003c db->db_mtx (db->db_mtx) _at_ /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/dnode_sync.c:396 2nd 0xc4171dac os->os_lock (os->os_lock) _at_ /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/dnode.c:439 KDB: stack backtrace: db_trace_self_wrapper(c0ce9121,7379732f,646f6d2f,73656c75,73667a2f,...) at db_trace_self_wrapper+0x26 kdb_backtrace(c08f756b,c0cec28f,c393f588,c3946c90,d825a758,...) at kdb_backtrace+0x2a _witness_debugger(c0cec28f,c4171dac,c3eef85e,c3946c90,c3ef0053,...) at _witness_debugger+0x25 witness_checkorder(c4171dac,9,c3ef0053,1b7,0,...) at witness_checkorder+0x839 _sx_xlock(c4171dac,0,c3ef0053,1b7,c433dcbc,...) at _sx_xlock+0x85 dnode_destroy(c433de28,c3ee749a,c3ef1241,c40f6000,20,...) at dnode_destroy+0x41 dnode_buf_pageout(c4340000,c4126000,c434003c,0,c4340000,...) at dnode_buf_pageout+0x99 dbuf_evict_user(c4340054,8,c3ef1241,18c,0,...) at dbuf_evict_user+0x4c dbuf_clear(c4340000,0,c3ef1241,18c,c40f60b0,...) at dbuf_clear+0x3e dnode_evict_dbufs(c433e000,c3eef27f,204,207,c4171dac,...) at dnode_evict_dbufs+0xa8 dmu_objset_evict_dbufs(c4171c00,3,0,c3dbf2ce,c434003c,...) at dmu_objset_evict_dbufs+0x144 dmu_objset_evict(c4171c00,c4126064,df51772e,d825a9c8,c3e1c482,...) at dmu_objset_evict+0xbd dsl_pool_close(c42a2000,c3ef9e9e,12e,12a,df51772e,...) at dsl_pool_close+0x73 spa_unload(c40ee000,c3b111c0,d825aaac,c40ee1a4,246,...) at spa_unload+0x72 spa_load(0,6,0,5,c3ee7ee0,...) at spa_load+0x724 spa_load_best(ffffffff,ffffffff,1,949,c0e47ce0,...) at spa_load_best+0x59 spa_open_common(c3b11ae0,0,c3ee938b,c40f7000,0,...) at spa_open_common+0x15e pool_status_check(c40f7000,2,0,12,0,...) at pool_status_check+0x2c zfsdev_ioctl(c3cdc800,d5985a12,c40f7000,0,c40f6000,...) at zfsdev_ioctl+0x238 devfs_ioctl_f(c3d10af0,d5985a12,c40f7000,c3976e80,c40f6000,...) at devfs_ioctl_f+0x10b kern_ioctl(c40f6000,3,d5985a12,c40f7000,125acec,...) at kern_ioctl+0x20d ioctl(c40f6000,d825acec,d825ad28,c0ceabb6,0,...) at ioctl+0x134 syscallenter(c40f6000,d825ace4,d825ace4,0,0,...) at syscallenter+0x263 syscall(d825ad28) at syscall+0x34 Xint0x80_syscall() at Xint0x80_syscall+0x21 --- syscall (54, FreeBSD ELF32, ioctl), eip = 0x28239cb3, esp = 0xbfbfcdfc, ebp = 0xbfbfce38 --- lock order reversal: 1st 0xc441434c db->db_mtx (db->db_mtx) _at_ /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c:1242 2nd 0xc3b10120 dr->dt.di.dr_mtx (dr->dt.di.dr_mtx) _at_ /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/dbuf.c:1246 KDB: stack backtrace: db_trace_self_wrapper(c0ce9121,752f2040,732f7273,732f6372,6d2f7379,...) at db_trace_self_wrapper+0x26 kdb_backtrace(c08f756b,c0cec28f,c393f588,c393f520,d83fe8e4,...) at kdb_backtrace+0x2a _witness_debugger(c0cec28f,c3b10120,c3eedbd5,c393f520,c3eec7b9,...) at _witness_debugger+0x25 witness_checkorder(c3b10120,9,c3eec7b9,4de,0,...) at witness_checkorder+0x839 _sx_xlock(c3b10120,0,c3eec7b9,4de,1,...) at _sx_xlock+0x85 dbuf_dirty(c4414310,c44c7a00,30,0,0,...) at dbuf_dirty+0xa3f dmu_write(c41dbc00,21,0,2d58,0,...) at dmu_write+0x1a5 space_map_sync(c4292a58,1,c429282c,c41dbc00,c44c7a00,...) at space_map_sync+0x348 metaslab_sync(c4292800,10f,0,0,d83feb84,...) at metaslab_sync+0x213 vdev_sync(c4360000,10f,0,c44c6000,1,...) at vdev_sync+0x120 spa_sync(c40ee000,10f,0,0,0,...) at spa_sync+0x3de txg_sync_thread(c41dc000,d83fed28,c0ce0b9b,35b,c3d51550,...) at txg_sync_thread+0x1ac fork_exit(c3e2cb50,c41dc000,d83fed28) at fork_exit+0xb8 fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip = 0, esp = 0xd83fed60, ebp = 0 --- lock order reversal: 1st 0xc465c9e8 zfs (zfs) _at_ /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/gfs.c:488 2nd 0xc4361214 zfsvfs->z_hold_mtx[i] (zfsvfs->z_hold_mtx[i]) _at_ /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_znode.c:1116 KDB: stack backtrace: db_trace_self_wrapper(c0ce9121,746d5f64,5d695b78,20402029,7273752f,...) at db_trace_self_wrapper+0x26 kdb_backtrace(c08f756b,c0cec28f,c39477f0,c3947788,d8222838,...) at kdb_backtrace+0x2a _witness_debugger(c0cec28f,c4361214,c3f05c47,c3947788,c3f0044d,...) at _witness_debugger+0x25 witness_checkorder(c4361214,9,c3f0044d,45c,0,...) at witness_checkorder+0x839 _sx_xlock(c4361214,0,c3f0044d,45c,d8222890,...) at _sx_xlock+0x85 zfs_zget(c4361000,3,0,d8222908,0,...) at zfs_zget+0x56 zfs_root(c3cfc288,80000,d8222960,1,c3f0a480,...) at zfs_root+0x56 zfsctl_create(c4361000,d8222a04,d8222a28,0,198526,...) at zfsctl_create+0x97 zfs_mount(c3cfc288,c3f0aac0,c39dd660,c3976e80,0,...) at zfs_mount+0x653 vfs_donmount(c3ce02d0,0,c398f980,c398f980,c3a91d48,...) at vfs_donmount+0xb10 nmount(c3ce02d0,d8222cec,28205f10,1,0,...) at nmount+0x84 syscallenter(c3ce02d0,d8222ce4,c0c003fd,c0e49130,0,...) at syscallenter+0x263 syscall(d8222d28) at syscall+0x34 Xint0x80_syscall() at Xint0x80_syscall+0x21 --- syscall (378, FreeBSD ELF32, nmount), eip = 0x2819082b, esp = 0xbfbfceac, ebp = 0xbfbfcef8 ---Received on Thu Dec 16 2010 - 21:07:27 UTC
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