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Date:      Thu, 11 Apr 1996 17:48:53 -0700
From:      David Muir Sharnoff <muir@idiom.com>
To:        FreeBSD-gnats-submit@freebsd.org
Subject:   kern/1135: starting an extra mountd and then killing it crashes -stable
Message-ID:  <199604120048.RAA18427@idiom.com>
Resent-Message-ID: <199604120050.RAA29299@freefall.freebsd.org>

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>Number:         1135
>Category:       kern
>Synopsis:       starting an extra mountd and then killing it crashes -stable
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Apr 11 17:50:01 PDT 1996
>Last-Modified:
>Originator:     David Muir Sharnoff
>Organization:
Idiom Consulting
>Release:        FreeBSD 2.1-STABLE i386
>Environment:

	FreeBSD 2.1-stable as of about a month ago.

	    FreeBSD 2.1-STABLE #0: Sat Mar 16 09:33:34 PST 1996
		muir@idiom.com:/usr/src/sys/compile/IDIOM
	    CPU: 80-MHz Pentium 735\\90 or 815\\100 (Pentium-class CPU)
	      Origin = "GenuineIntel"  Id = 0x522  Stepping=2
	      Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
	    real memory  = 67108864 (65536K bytes)
	    avail memory = 62599168 (61132K bytes)
	    Probing for devices on PCI bus 0:
	    chip0 <Intel 82434NX (Neptune) PCI cache memory controller> rev 17 on pci0:0
	    chip1 <Intel 82378ZB PCI-ISA bridge> rev 3 on pci0:2
	    ncr0 <ncr 53c810 scsi> rev 1 int a irq 9 on pci0:6
	    ncr0 waiting for scsi devices to settle
	    (ncr0:0:0): "MICROP 4221-09 1128R4AV R4AV" type 0 fixed SCSI 2
	    sd0(ncr0:0:0): Direct-Access 
	    sd0(ncr0:0:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
	    1955MB (4004219 512 byte sectors)
	    sd0(ncr0:0:0): with 4049 cyls, 9 heads, and an average 109 sectors/track
	    (ncr0:1:0): "SEAGATE ST32550N 0009" type 0 fixed SCSI 2
	    sd1(ncr0:1:0): Direct-Access 
	    sd1(ncr0:1:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
	    2047MB (4194058 512 byte sectors)
	    sd1(ncr0:1:0): with 3511 cyls, 11 heads, and an average 108 sectors/track
	    (ncr0:2:0): "SEAGATE ST32550N 0007" type 0 fixed SCSI 2
	    sd2(ncr0:2:0): Direct-Access 
	    sd2(ncr0:2:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
	    2047MB (4194058 512 byte sectors)
	    sd2(ncr0:2:0): with 3511 cyls, 11 heads, and an average 108 sectors/track
	    (ncr0:3:0): "SONY CD-ROM CDU-55S 1.0q" type 5 removable SCSI 2
	    cd0(ncr0:3:0): CD-ROM 
	    cd0(ncr0:3:0): 275ns (4 Mb/sec) offset 8.

	    cd0(ncr0:3:0): UNIT ATTENTION asc:28,0
	    cd0(ncr0:3:0):  Not ready to ready transition, medium may have changed
	    cd present.[400000 x 2048 byte records]
	    (ncr0:5:0): "NRC MBR-7 110" type 5 removable SCSI 2
	    cd1(ncr0:5:0): CD-ROM 
	    cd1(ncr0:5:0): asynchronous.
	    cd present.[325252 x 2048 byte records]
	    vga0 <VGA-compatible display device> rev 1 int a irq 9 on pci0:12
	    Probing for devices on the ISA bus:
	    ed0 at 0x300-0x31f irq 10 maddr 0xcc000 msize 16384 on isa
	    ed0: address 00:00:c0:9f:5d:95, type SMC8216T (16 bit) 
	    vt0 at 0x60-0x6f irq 1 on motherboard
	    vt0: generic, 80 col, color, 8 scr, mf2-kbd, [R3.20-b24]
	    sio0 at 0x3f8-0x3ff irq 4 on isa
	    sio0: type 16550A
	    sio1 at 0x2f8-0x2ff irq 3 on isa
	    sio1: type 16550A
	    sio4 at 0x100-0x107 flags 0x1305 on isa
	    sio4: type 16550A (multiport)
	    sio5 at 0x108-0x10f flags 0x1305 on isa
	    sio5: type 16550A (multiport)
	    sio6 at 0x110-0x117 flags 0x1305 on isa
	    sio6: type 16550A (multiport)
	    sio7 at 0x118-0x11f flags 0x1305 on isa
	    sio7: type 16550A (multiport)
	    sio8 at 0x120-0x127 flags 0x1305 on isa
	    sio8: type 16550A (multiport)
	    sio9 at 0x128-0x12f flags 0x1305 on isa
	    sio9: type 16550A (multiport)
	    sio10 at 0x130-0x137 flags 0x1305 on isa
	    sio10: type 16550A (multiport)
	    sio11 at 0x138-0x13f flags 0x1305 on isa
	    sio11: type 16550A (multiport)
	    sio12 at 0x140-0x147 flags 0x1305 on isa
	    sio12: type 16550A (multiport)
	    sio13 at 0x148-0x14f flags 0x1305 on isa
	    sio13: type 16550A (multiport)
	    sio14 at 0x150-0x157 flags 0x1305 on isa
	    sio14: type 16550A (multiport)
	    sio15 at 0x158-0x15f flags 0x1305 on isa
	    sio15: type 16550A (multiport)
	    sio16 at 0x160-0x167 flags 0x1305 on isa
	    sio16: type 16550A (multiport)
	    sio17 at 0x168-0x16f flags 0x1305 on isa
	    sio17: type 16550A (multiport)
	    sio18 at 0x170-0x177 flags 0x1305 on isa
	    sio18: type 16550A (multiport)
	    sio19 at 0x178-0x17f irq 5 flags 0x1305 on isa
	    sio19: type 16550A (multiport master)
	    cy0 irq 11 maddr 0xd0000 msize 8192 on isa
	    cy1 irq 12 maddr 0xd2000 msize 8192 on isa
	    lpt0 at 0x378-0x37f irq 7 on isa
	    lpt0: Interrupt-driven port
	    lp0: TCP/IP capable interface
	    pca0 on motherboard
	    pca0: PC speaker audio driver
	    fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
	    fdc0: NEC 72065B
	    fd0: 1.44MB 3.5in
	    fd1: 360KB 5.25in
	    ep0 not probed due to I/O address conflict with ed0 at 0x300
	    npx0 on motherboard
	    npx0: INT 16 interface
	    sb0 not found at 0x220
	    IP firewall initialized
	    WARNING: / was not properly dismounted.
	    in_rtqtimo: adjusted rtq_reallyold to 2400

>Description:

	I started two mountd accidently.  I then tried to kill them
	off with kill and then kill -1.
	The system crashed.

>How-To-Repeat:

	I have a panic dump.  I'll save it for one month.	

>Fix:
	
>Audit-Trail:
>Unformatted:



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