Date: Sun, 19 Jul 1998 07:51:21 -0700 From: David Greenman <dg@root.com> To: Julian Elischer <julian@whistle.com> Cc: hackers@FreeBSD.ORG Subject: Re: Dump device with DEVFS? Message-ID: <199807191451.HAA13256@implode.root.com> In-Reply-To: Your message of "Sat, 18 Jul 1998 14:24:46 PDT." <Pine.BSF.3.95.980718141937.21408B-100000@current1.whistle.com>
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>the test should be commented out for SLICE I'm a bit confused - you didn't preserve the minor number bit ordering in devfs? -DG David Greenman Co-founder/Principal Architect, The FreeBSD Project >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 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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