Date: Wed, 10 Jan 1996 13:10:58 -0800 (PST) From: "Steven G. Kargl" <sgk@troutmask.apl.washington.edu> To: freebsd-stable@freebsd.org Subject: panic: getnewbuf Message-ID: <199601102110.NAA00230@troutmask.apl.washington.edu>
next in thread | raw e-mail | index | archive | help
New kernel from sources supped this morning (0900 pst). See config
file and hardware list below.
boot: -s
#fsck -y (repair previous damage from testing)
#mount -a
#cd /usr/tmp
#/usr/local/bin/iozone 32
The system will hange without a panic. The system will not
respond to keyboard input. I can switch to a different vty to
try to login, but the system does not respond with passwd prompt.
Telneting from a remote host does not work. iozone may or may not
write the 32 MB file. Push reset button to reboot the system.
boot: -s -c
config> disable ep0
config> quit
#fsck -y (repair previous damage from testing)
#mount -a
#cd /usr/tmp
#/usr/local/bin/iozone 32
See above description.
boot: -c
config> enable ep0
config> quit (Boots to multi-user)
On vty 2
login: root
passwd:
%top
On vty 1
login: root
passwd:
%cd /usr/tmp
%sleep 10; iozone 32
Switch to vty 2
This miraculously completes without a problem. Switch to vty 1
and try it again.
%sleep 10; iozone 32
Switch to vty 2. System hangs. Switch to vty 1.
panic: getnewbuf: inconsistent EMPTY queue, qindex=2
Debugger("panic")
Stopped at _Debugger+0x2c: movb $0,_in_Debugger.110
db>trace
_Debugger(f0114b9b,f0114b90,f0125518,efbffd30,f1d5ac90) at _Debugger+0x2c
_panic(f0125518,2,0,80000000,0) at _panic+0x3f
_getnewbuf(0,0,1,0,6c) at _getnewbuf+0x47
_getblk(f08fb500,6c,2000,0,0) at _getblk+0x12d
_ffs_balloc(f08e1200,6c,200,f08f5880,efbffeb8) at _fss_balloc+0x731
_ffs_write(efbffee0,efbfd938,200,efbfff94,0) at _ffs_write+0x2d4
_vn_write(f08fc000,efbfff2c,f08f5880,efbfd938,f08fa9000) at _vn_write+0xb5
_write(f08fa900,efbfff94,efbfff8c,200,10000) at _write+0xa4
_syscall(10027,efbf0027,3,10000,efbfd988) at _syscall+0x186
Bad user frame pointer: 0xefbfd988
db>show all proc
pid proc addr uid ppid pgrp flag stat wmesg wchan cmd
184 f08fa900 f3544000 0 155 184 004006 2 iozone
db>show map
Task map 0xf017254c: pmap=0xf7f805c6, ref=1953392996, nentries=7561984,
version=1166869740
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x707371
fault code = supervisor read, page not present
instruction pointer = 0x8:0xf0165db4
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL=0
current process = 184 (iozone)
interrupt mask = bio
kernel: type 12 trap, code=0
Stopped at _vm_map_print+0x64: movl 0xc(%ebx), %eax
--
Steven G. Kargl | Phone: 206-685-4677 |
Applied Physics Lab | Fax: 206-543-6785 |
Univ. of Washington |---------------------|
1013 NE 40th St | FreeBSD 2.x-stable |
Seattle, WA 98105 |---------------------|
Hardware summary
Intel 80486DX2 66 MHz cpu
Cheap offshore motherboard (4 EISA and 3 ISA/VLB slots)
OPTI chipset 82C691, 82C696; AMI BIOS
24MB of main memory (2 1x36 70 ns 72 pin SIMMS, 1 4x36 60 ns 72 pin SIMM)
256 KB of 20 ns L2 cache
Orchid Fahrenheit 1280+/VLB (S3 86C805-Q) video card with 2 MB DRAM
Adaptec 1742 controller
Maxtor MXT-540SL hard disk (internal 521 MB)
Quantum Lightning 730S hard disk (external 699 MB)
HP HP35480A DAT tape drive (external 4/8 GB)
3Com 3C509 EtherLink III Combo (using UTP port)
2 Serial (16550 UARTS); 1 Bi-directional parallel; 1 Game
Config file
machine "i386"
cpu "I486_CPU"
ident TROUTMASK
maxusers 10
config kernel root on sd0
options DDB
options KTRACE
options SCSIDEBUG
options "COMPAT_43"
options DODUMP
options INET #Internet communications protocols
options FFS #Fast filesystem
options "MAXCONS=4"
options "SCSI_DELAY=8"
options UCONSOLE
options XSERVER
controller isa0
controller eisa0
controller ahb0
controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2 vector fdintr
disk fd0 at fdc0 drive 0
controller scbus0 at ahb0 #base SCSI code
device sd0 at scbus0 target 0 unit 0 #SCSI disk
device sd1 at scbus0 target 1 unit 0 #SCSI disk
device st0 at scbus0 target 2 #SCSI tapes
device sc0 at isa? port "IO_KBD" tty irq 1 vector scintr
device npx0 at isa? port "IO_NPX" irq 13 vector npxintr
device lpt0 at isa? port? tty irq 7 vector lptintr
device sio0 at isa? port "IO_COM1" tty irq 4 vector siointr
device sio1 at isa? port "IO_COM2" tty irq 3 vector siointr
device ep0 at isa? port 0x300 net irq 10 vector epintr
device pca0 at isa? port IO_TIMER1 tty
pseudo-device ether #Generic Ethernet
pseudo-device loop #Network loopback device
pseudo-device sl 2 #Serial Line IP
pseudo-device bpfilter 4 #Berkeley packet filter
pseudo-device pty 8 #Pseudo ttys
pseudo-device speaker #Play IBM BASIC-style noises out your speaker
pseudo-device log #Kernel syslog interface (/dev/klog)
pseudo-device vn
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199601102110.NAA00230>