For some reason, this script:
#!/bin/sh
DEV=$(md_config -a -t malloc -s 500m)
newfs -i 512 -U /dev/$DEV
mount /dev/$DEV /mnt
cp -Rp /usr/src /mnt/
will kill my machine. I get zillions (well, hundreds at
least, without a serial console I can't count them)
of:
Dec 21 19:16:27 test kernel: g_vfs_done():md0[WRITE(offset=352649216,
length=16384)]error = 28
Dec 21 19:16:27 test kernel: g_vfs_done():md0[WRITE(offset=352665600,
length=12288)]error = 28
with varying offsets and lengths, but seemingly always error 28
The system does not panic orderly, but rather spontaneously reboots after
spewing a lot of the above error messages (5-20 secs worth).
This is on a Compaq Proliant ML370 with 1 GB RAM, dmesg below.
What do I need to fix to be able to use a RAM-backed filesystem?
Jim
FWIW, this script does not seem to freak out my machine, This led
me to consider inode starvation, but '-i 512' results in over 6
inodes for what I estimate to be < 4 files in /usr/src.
#!/bin/sh
DEV=$(mdconfig -a -t malloc -s 500m)
newfs -i 512 -U /dev/$DEV
mount /dev/$DEV /mnt
dd if=/dev/zero of=/mnt/1M bs=1024 count=1024
for j in $(jot 450); do {
cp -p /mnt/1M /mnt/1M.$(printf "%03d" $j)
} done
After that, df -h /mnt shows:
/dev/md0 484M458M-13M 103%/mnt
Here's the dmesg:
Copyright (c) 1992-2005 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 6.0-RELEASE #0: Wed Dec 21 15:40:38 PST 2005
[EMAIL PROTECTED]:/usr/obj/usr/src/sys/SMP
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel Pentium III (996.85-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x686 Stepping = 6
Features=0x383fbff
real memory = 1073725440 (1023 MB)
avail memory = 1041682432 (993 MB)
MPTable:
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 1
cpu1 (AP): APIC ID: 0
ioapic0: Changing APIC ID to 8
ioapic0: Assuming intbase of 0
ioapic0 irqs 0-34 on motherboard
npx0: [FAST]
npx0: on motherboard
npx0: INT 16 interface
cpu0 on motherboard
cpu1 on motherboard
pcib0: pcibus 0 on motherboard
pci0: on pcib0
sym0: <1510d> port 0x2000-0x20ff mem
0xc6effc00-0xc6ef,0xc6efe000-0xc6efefff irq 11 at device 1.0 on pci0
sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym0: [GIANT-LOCKED]
sym1: <1510d> port 0x2400-0x24ff mem
0xc6efdc00-0xc6efdfff,0xc6efc000-0xc6efcfff irq 15 at device 1.1 on pci0
sym1: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym1: [GIANT-LOCKED]
fxp0: port 0x2800-0x283f mem
0xc6efb000-0xc6efbfff,0xc6d0-0xc6df irq 5 at device 2.0 on pci0
miibus0: on fxp0
inphy0: on miibus0
inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
fxp0: Ethernet address: 00:02:a5:64:d5:4e
pci0: at device 3.0 (no driver attached)
pci0: at device 4.0 (no driver attached)
isab0: at device 15.0 on pci0
isa0: on isab0
atapci0: port
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x3000-0x300f at device 15.1 on pci0
ata0: on atapci0
ata1: on atapci0
pcib3: pcibus 3 on motherboard
pci3: on pcib3
ida0: port 0x4000-0x40ff mem
0xc6fff000-0xc6ff irq 10 at device 6.0 on pci3
ida0: [GIANT-LOCKED]
ida0: drives=1 firm_rev=1.18
idad0: on ida0
idad0: 17363MB (35561280 sectors), blocksize=512
eisa0: on motherboard
mainboard0: on eisa0 slot 0
eisa0: unknown card @@D9004 (0x00049004) at slot 2
pmtimer0 on isa0
orm0: at iomem
0xc-0xc7fff,0xc8000-0xcbfff,0xe8000-0xedfff,0xee000-0xe on isa0
atkbdc0: at port 0x60,0x64 on isa0
atkbd0: irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model IntelliMouse, device ID 3
fdc0: at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: [FAST]
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
ppc0: at port 0x378-0x37f irq 7 on isa0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
ppbus0: on ppc0
plip0: on ppbus0
lpt0: on ppbus0
lpt0: Interrupt-driven port
ppi0: on ppbus0
sc0: at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
vga0: at port 0x3c0-0x3df iomem 0xa-0xb on isa0
Timecounters tick every 1.000 msec
acd0: CDROM at ata0-master PIO4
Waiting 5 seconds for SCSI devices to settle
SMP: AP CPU #1 Launched!
Trying to mount root from ufs:/dev/idad0s1a
WARNING: / was not properly dismounted
WARNING: /tmp was not properly dismounted
WARNING: /usr was not properly dismounted
WARNING: /var was not properly dismounted
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