Date: Sat, 18 Jul 1998 14:24:46 -0700 (PDT) From: Julian Elischer <julian@whistle.com> To: Dag-Erling Coidan =?iso-8859-1?Q?Sm=F8rgrav?= <dag-erli@ifi.uio.no> Cc: hackers@FreeBSD.ORG Subject: Re: Dump device with DEVFS? Message-ID: <Pine.BSF.3.95.980718141937.21408B-100000@current1.whistle.com> In-Reply-To: <xzp90lq28k3.fsf@hrotti.ifi.uio.no>
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the test should be commented out for SLICE bde broke it because he thought it needed to test for a swap partition.. it actually needs to be re-examined.. check the history of that file for bruce's backout. your anaylsys is correct. On 18 Jul 1998, Dag-Erling Coidan [iso-8859-1] Smørgrav wrote: > It seems to be impossible to enable a dump device with DEVFS. The > following code in setdumpdev() in sys/i386/i386/autoconf.c is the > culprit: > > if (dkpart(dev) != SWAP_PART) > return (ENODEV); > > dkpart(dev) is #defined to (minor(dev) & 7) in disklabel.h, and > SWAP_PART is #defined to 1 in the same file. > > Now MAKEDEV will assign minor numbers with the lower nybble 0x1 to > swap partitions ([fosw]d?b or something like that) so it will work > fine, but Helen's swap partition (/dev/wd0s1b) has minor number 11 > (lower nybble 0x3), and Niobe's swap partition (/dev/sd0b) has minor > number 20 (lower nybble 0x4), neither of which is acceptable to > setdumpdev(). The only partition I have which is eligible as a dump > device (due to its minor number being 25) is /dev/sd0h, aka. /usr/src. > > Am I missing something here? Is this a bug or a feature? How do I set > a dump device on a DEVFS system? And anyway, shouldn't setdumpdev() > just trust the user to know what he's doing even if the selected > partition doesn't seem to be a swap partition? > > BTW, I just had a panic trying to umount an msdosfs floppy - probably > thanks to soft updates, all my file systems except /var came up clean > although I was cvsupping at the time of the panic. great.. > > For completeness' sake, here is my dmesg, kernel config and a listing > of /dev/sd*: > > Copyright (c) 1992-1998 FreeBSD Inc. > Copyright (c) 1982, 1986, 1989, 1991, 1993 > The Regents of the University of California. All rights reserved. > FreeBSD 3.0-CURRENT #9: Fri Jul 17 18:26:15 CEST 1998 > finrod@niobe.ewox.org:/usr/src/sys/compile/niobe > Timecounter "i8254" frequency 1193182 Hz cost 2278 ns > Timecounter "TSC" frequency 166193751 Hz cost 137 ns > CPU: Pentium/P54C (166.19-MHz 586-class CPU) > Origin = "GenuineIntel" Id = 0x52c Stepping=12 > Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8> > real memory = 134217728 (131072K bytes) > > FreeBSD Kernel Configuration Utility - Version 1.1 > Type "help" for help or "visual" to go to the visual > configuration interface (requires MGA/VGA display or > serial terminal capable of displaying ANSI graphics). > config> quit > avail memory = 127885312 (124888K bytes) > DEVFS: ready for devices > Probing for devices on PCI bus 0: > chip0: <Intel 82439> rev 0x03 on pci0.0.0 > chip1: <Intel 82371SB PCI to ISA bridge> rev 0x01 on pci0.7.0 > de0: <Digital 21140A Fast Ethernet> rev 0x22 int a irq 15 on pci0.9.0 > de0: ACCTON EN1207 21140A [10-100Mb/s] pass 2.2 > de0: address 00:00:e8:4a:83:63 > de0: enabling 100baseTX port > vga0: <Tseng Labs ET6000 graphics accelerator> rev 0x70 int a irq 9 on pci0.10.0 > ahc0: <Adaptec 2940 Ultra SCSI host adapter> rev 0x00 int a irq 12 on pci0.11.0 > ahc0: aic7880 Wide Channel, SCSI Id=7, 16 SCBs > scbus0 at ahc0 bus 0 > sd0 at scbus0 target 2 lun 0 > sd0: <QUANTUM XP34550W LXY1> type 0 fixed SCSI 2 > sd0: Direct-Access 4341MB (8890760 512 byte sectors) > sd0: with 5899 cyls, 10 heads, and an average 150 sectors/track > ahc0:A:4: refuses WIDE negotiation. Using 8bit transfers > sd1 at scbus0 target 4 lun 0 > sd1: <QUANTUM FIREBALL ST6.4S 0F0C> type 0 fixed SCSI 2 > sd1: Direct-Access 6180MB (12657717 512 byte sectors) > sd1: with 7068 cyls, 8 heads, and an average 223 sectors/track > ahc1: <Adaptec 2940 SCSI host adapter> rev 0x00 int a irq 11 on pci0.12.0 > ahc1: aic7870 Single Channel, SCSI Id=7, 16 SCBs > scbus1 at ahc1 bus 0 > st0 at scbus1 target 3 lun 0 > st0: <TECMAR TRAVAN NS8 P611> type 1 removable SCSI 2 > st0: Sequential-Access density code 0x0, drive empty > sd2 at scbus1 target 4 lun 0 > sd2: <CONNER CFP1080S 4649> type 0 fixed SCSI 2 > sd2: Direct-Access 1030MB (2110812 512 byte sectors) > sd2: with 3658 cyls, 6 heads, and an average 96 sectors/track > cd0 at scbus1 target 5 lun 0 > cd0: <TOSHIBA CD-ROM XM-3801TA 1047> type 5 removable SCSI 2 > cd0: CD-ROM cd present [258777 x 2048 byte records] > od0 at scbus1 target 6 lun 0 > od0: <OLYMPUS MOS330 1.30> type 7 removable SCSI 2 > od0: Optical 217MB (446325 512 byte sectors) > od0: with approximate 217 cyls, 64 heads, and 32 sectors/track > Probing for PnP devices: > Probing for devices on the ISA bus: > sc0 at 0x60-0x6f irq 1 on motherboard > sc0: VGA color <12 virtual consoles, flags=0x0> > psm0 not found at 0x60 > sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa > sio0: type 16550A > sio1 at 0x2f8-0x2ff irq 3 on isa > sio1: type 16550A > lpt0 at 0x378-0x37f irq 7 on isa > lpt0: Interrupt-driven port > lp0: TCP/IP capable interface > pcm0 not found > fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa > fdc0: FIFO enabled, 8 bytes threshold > fd0: 1.44MB 3.5in > 1 3C5x9 board(s) on ISA found at 0x300 > ep0 at 0x300-0x30f irq 10 on isa > ep0: aui/bnc[*BNC*] address 00:60:8c:61:df:38 > npx0 on motherboard > npx0: INT 16 interface > Intel Pentium F00F detected, installing workaround > DEVFS: ready to run > IP packet filtering initialized, divert disabled, rule-based forwarding disabled, logging limited to 256 packets/entry > sd0: probing for MBR.. rejected.. Slice includes MBR sd0: probing for disklabel.. part a, start=0, size=131072 > part b, start=131072, size=1048576 > part d, start=3932160, size=4958600 > part e, start=1179648, size=131072 > part f, start=1310720, size=524288 > part g, start=1835008, size=1048576 > part h, start=2883584, size=1048576 > sd1: probing for MBR.. rejected.. Slice includes MBR sd1: probing for disklabel.. part e, start=0, size=524288 > part f, start=524288, size=1572864 > part g, start=2097152, size=10560565 > sd2: probing for MBR.. part 1, start=63, size=2104452 > sd2s1: attaching disklabel.. > part e, start=0, size=524288 > part f, start=524288, size=1580164 > fd0: probing for MBR.. WOULD SELECT /sd0a And it exists > WARNING: / was not properly dismounted. > fd0: Operation timeout > fd0: hard error, block 0 (No status) > ffs_mountfs: superblock updated > ffs_mountfs: superblock updated > ffs_mountfs: superblock updated > ffs_mountfs: superblock updated > ffs_mountfs: superblock updated > ffs_mountfs: superblock updated > ffs_mountfs: superblock updated > ffs_mountfs: superblock updated > > # > # Kernel configuration for niobe.ewox.org > # > machine "i386" > cpu "I586_CPU" > ident niobe > maxusers 64 > # > # Networking > options INET > options IPFIREWALL > options IPFIREWALL_VERBOSE > options "IPFIREWALL_VERBOSE_LIMIT=256" > options "NMBCLUSTERS=4096" > # > # File system > options DEVFS > options FFS > options FFS_ROOT # Boot from FFS > options NFS > options PROCFS > options SLICE # Use devfs for devices > options SOFTUPDATES > # > # XFree86 support > options SYSVMSG > options SYSVSEM > options SYSVSHM > options UCONSOLE > # > # Misc. kernel options > options "AUTO_EOI_1" > options "AUTO_EOI_2" > options "COMPAT_43" > options "MD5" > options BOUNCE_BUFFERS > options INCLUDE_CONFIG_FILE > options USERCONFIG > options USERCONFIG_BOOT > options USER_LDT > options VISUAL_USERCONFIG > # > config kernel root on sd0 > # > # Buses > controller isa0 > controller pci0 > controller pnp0 > # > # Numeric processor extensions > device npx0 at isa? port "IO_NPX" irq 13 vector npxintr > # > # Floppy controller > controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2 vector fdintr > disk fd0 at fdc0 drive 0 > # > # SCSI controllers > controller ahc0 > controller scbus0 > device sd0 > device od0 > device st0 > device cd0 > pseudo-device su > pseudo-device ssc > options "SCSI_DELAY=1" > options SCSI_REPORT_GEOMETRY > # > # System console and mouse > device sc0 at isa? port "IO_KBD" tty irq 1 vector scintr > options "MAXCONS=12" > options "SC_HISTORY_SIZE=4096" > options "MSGBUF_SIZE=32768" > device psm0 at isa? port "IO_KBD" conflicts tty irq 12 vector psmintr > # > # I/O ports > device sio0 at isa? port "IO_COM1" flags 0x10 tty irq 4 vector siointr > device sio1 at isa? port "IO_COM2" tty irq 3 vector siointr > device lpt0 at isa? port? tty irq 7 vector lptintr > # > # Network adapters > device de0 > device ep0 at isa? port 0x300 net irq 10 vector epintr > # > # Networking pseudo-devices > pseudo-device loop > pseudo-device ether > pseudo-device tun 4 > pseudo-device bpfilter 4 > # > # Other pseudo-devices > pseudo-device gzip > pseudo-device pty 64 > pseudo-device vn 4 > # > # Sound hardware (Luigi Rizzo) > device pcm0 at isa? port? tty irq 5 drq 1 flags 0x15 vector pcmintr > # > > root@niobe # ll /dev/sd* > brw------- 1 root operator 14, 8 Jul 18 21:56 /dev/sd0 > brw------- 1 root operator 14, 19 Jul 18 21:56 /dev/sd0a > brw------- 1 root operator 14, 20 Jul 18 21:56 /dev/sd0b > brw------- 1 root operator 14, 21 Jul 18 21:56 /dev/sd0d > brw------- 1 root operator 14, 22 Jul 18 21:56 /dev/sd0e > brw------- 1 root operator 14, 23 Jul 18 21:56 /dev/sd0f > brw------- 1 root operator 14, 24 Jul 18 21:56 /dev/sd0g > brw------- 1 root operator 14, 25 Jul 18 21:56 /dev/sd0h > brw------- 1 root operator 14, 9 Jul 18 21:56 /dev/sd1 > brw------- 1 root operator 14, 26 Jul 18 21:56 /dev/sd1e > brw------- 1 root operator 14, 27 Jul 18 21:56 /dev/sd1f > brw------- 1 root operator 14, 28 Jul 18 21:56 /dev/sd1g > brw------- 1 root operator 14, 10 Jul 18 21:56 /dev/sd2 > brw------- 1 root operator 14, 29 Jul 18 21:56 /dev/sd2s1 > brw------- 1 root operator 14, 30 Jul 18 21:56 /dev/sd2s1e > brw------- 1 root operator 14, 31 Jul 18 21:56 /dev/sd2s1f > > DES > -- > One two, one two, one two. > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hackers" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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