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Hi,
Sorry if the problem has been known.
I tested with several kernel, 2.6.1-mm4, 2.6.2-rc1-mm1 and 2.6.2-rc2 wiht the same
behaviour.
I got two box, the first box doesn't have this problem, the second one has
.
Step to produce:
Boot the machine, login, plug the usb-storage device, and run modporbe
modprobe usb-storage
modprobe sg
modprobe uhci-hcd
now I can mount /dev/sda1 /usb as normal
Unmount the mount point and remove the device, system is still normal
Plug the device in, the system freeze (at the text console can not type any command
the box doesn't reply to ping, no any error message found in the log)
But if after removing the device, I do a
rmmod uhci-hcd
Then plug it in, the system doesn't freeze. Now I do again
modprobe uhci-hcd and mount is as normal
This doesn't happen with kernel 2.4.24 and all 2.4 kernel in this box. I attached
here the dmesg for more information about the hardware.
Best regards,
Steve Kieu
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Linux version 2.6.2-rc2-i686 ([EMAIL PROTECTED]) (gcc version 3.3.2) #1 Thu Jan 29
22:19:35 UTC 2004
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 0000000003ef0000 (usable)
BIOS-e820: 0000000003ef0000 - 0000000003ef3000 (ACPI NVS)
BIOS-e820: 0000000003ef3000 - 0000000003f00000 (ACPI data)
BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved)
62MB LOWMEM available.
On node 0 totalpages: 16112
DMA zone: 4096 pages, LIFO batch:1
Normal zone: 12016 pages, LIFO batch:2
HighMem zone: 0 pages, LIFO batch:1
DMI 2.2 present.
Building zonelist for node : 0
Kernel command line: root=/dev/hda2 quiet rootflags=data=writeback
psmouse_resolution=200 elevator=deadline
Initializing CPU#0
PID hash table entries: 256 (order 8: 2048 bytes)
Detected 401.057 MHz processor.
Using tsc for high-res timesource
Console: colour VGA+ 80x25
Memory: 60876k/64448k available (1659k kernel code, 3116k reserved, 360k data, 300k
init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay loop... 790.52 BogoMIPS
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: After generic identify, caps: 0183f9ff 00000000 00000000 00000000
CPU: After vendor identify, caps: 0183f9ff 00000000 00000000 00000000
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 128K
CPU: After all inits, caps: 0183f9ff 00000000 00000000 00000040
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: Intel Celeron (Mendocino) stepping 05
Enabling fast FPU save and restore... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
NET: Registered protocol family 16
PCI: PCI BIOS revision 2.10 entry at 0xfb300, last bus=1
PCI: Using configuration type 1
mtrr: v2.0 (20020519)
PCI: Probing PCI hardware
PCI: Probing PCI hardware (bus 00)
Transparent bridge - 0000:00:1e.0
PCI: Using IRQ router PIIX/ICH [8086/2420] at 0000:00:1f.0
Machine check exception polling timer started.
apm: BIOS version 1.2 Flags 0x07 (Driver version 1.16ac)
devfs: v1.22 (20021013) Richard Gooch ([EMAIL PROTECTED])
devfs: boot_options: 0x1
Initializing Cryptographic API
pty: 256 Unix98 ptys configured
Linux agpgart interface v0.100 (c) Dave Jones
agpgart: Detected an Intel i810 Chipset.
agpgart: Maximum main memory to use for agp memory: 26M
agpgart: AGP aperture is 64M @ 0xd8000000
[drm] Initialized i810 1.4.0 20030605 on minor 0
Serial: 8250/16550 driver $Revision: 1.90 $ 8 ports, IRQ sharing disabled
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
Using deadline io scheduler
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ICH0: IDE controller at PCI slot 0000:00:1f.1
ICH0: chipset revision 1
ICH0: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:pio, hdd:pio
hda: FUJITSU MPF3102AT, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: max request size: 128KiB
hda: 20015856 sectors (10248 MB) w/512KiB Cache, CHS=19857/16/63, UDMA(33)
/dev/ide/host0/bus0/target0/lun0: p1 p2 p4
mice: PS/2 mouse device common for all mice
serio: i8042 AUX port at 0x60,0x64 irq 12
input: PS/2 Generic Mouse on isa0060/serio1
serio: i8042 KBD port at 0x60,0x64 irq 1
input: AT Translated Set 2 keyboard on isa0060/serio0
Advanced Linux Sound Architecture Driver Version 0.9.7 (Thu Sep 25 19:16:36 2003 UTC).
PCI: Found IRQ 5 for device 0000:00:1f.5
PCI: Setting latency timer of device 0000:00:1f.5 to 64
intel8x0: clocking to 48000
ALSA device list:
#0: Intel 82901AB-ICH0 at 0xd800, irq 5
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
NET: Registered protocol family 1
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting. Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with writeback data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Mounted devfs on /dev
Freeing unused kernel memory: 300k freed
Adding 136512k swap on /dev/hda1. Priority:-1 extents:1
EXT3 FS on hda2, internal journal
kjournald starting. Commit interval 5 seconds
EXT3 FS on hda4, internal journal
EXT3-fs: mounted filesystem with writeback data mode.
drivers/usb/core/usb.c: registered new driver usbfs
drivers/usb/core/usb.c: registered new driver hub
drivers/usb/core/usb.c: deregistering driver usbfs
drivers/usb/core/usb.c: deregistering driver hub
drivers/usb/core/usb.c: registered new driver usbfs
drivers/usb/core/usb.c: registered new driver hub
drivers/usb/core/usb.c: deregistering driver usbfs
drivers/usb/core/usb.c: deregistering driver hub
request_module: failed /sbin/modprobe -- net-pf-4. error = 256
SCSI subsystem initialized
request_module: failed /sbin/modprobe -- plip0. error = 256
parport0: PC-style at 0x378, irq 7 [PCSPP,TRISTATE]
parport0: cpp_mux: aa55f00f52ad51(87)
parport0: cpp_daisy: aa5500ff(80)
parport0: assign_addrs: aa5500ff(80)
parport0: cpp_mux: aa55f00f52ad51(87)
parport0: cpp_daisy: aa5500ff(80)
parport0: assign_addrs: aa5500ff(80)
NET3 PLIP version 2.4-parport [EMAIL PROTECTED]
plip0: Parallel port at 0x378, using IRQ 7.
drivers/usb/core/usb.c: registered new driver usbfs
drivers/usb/core/usb.c: registered new driver hub
drivers/usb/host/uhci-hcd.c: USB Universal Host Controller Interface driver v2.1
PCI: Found IRQ 9 for device 0000:00:1f.2
uhci_hcd 0000:00:1f.2: UHCI Host Controller
PCI: Setting latency timer of device 0000:00:1f.2 to 64
uhci_hcd 0000:00:1f.2: irq 9, io base 0000d000
uhci_hcd 0000:00:1f.2: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
hub 1-0:1.0: new USB device on port 1, assigned address 2
Initializing USB Mass Storage driver...
scsi0 : SCSI emulation for USB Mass Storage devices
Vendor: Model: USB DISK Rev: 2.08
Type: Direct-Access ANSI SCSI revision: 02
SCSI device sda: 128000 512-byte hdwr sectors (66 MB)
sda: assuming Write Enabled
sda: assuming drive cache: write through
/dev/scsi/host0/bus0/target0/lun0: p1
Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0
Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0, type 0
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 2
drivers/usb/core/usb.c: registered new driver usb-storage
USB Mass Storage support registered.
usb 1-1: USB disconnect, address 2
uhci_hcd 0000:00:1f.2: remove, state 1
usb usb1: USB disconnect, address 1
uhci_hcd 0000:00:1f.2: USB bus 1 deregistered
drivers/usb/host/uhci-hcd.c: USB Universal Host Controller Interface driver v2.1
PCI: Found IRQ 9 for device 0000:00:1f.2
uhci_hcd 0000:00:1f.2: UHCI Host Controller
PCI: Setting latency timer of device 0000:00:1f.2 to 64
uhci_hcd 0000:00:1f.2: irq 9, io base 0000d000
uhci_hcd 0000:00:1f.2: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
hub 1-0:1.0: new USB device on port 1, assigned address 2
scsi1 : SCSI emulation for USB Mass Storage devices
Vendor: Model: USB DISK Rev: 2.08
Type: Direct-Access ANSI SCSI revision: 02
SCSI device sda: 128000 512-byte hdwr sectors (66 MB)
sda: assuming Write Enabled
sda: assuming drive cache: write through
/dev/scsi/host1/bus0/target0/lun0: p1
Attached scsi removable disk sda at scsi1, channel 0, id 0, lun 0
Attached scsi generic sg0 at scsi1, channel 0, id 0, lun 0, type 0
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 2
