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Old 11-17-2008, 12:51 AM
"Rudi Ahlers"
 
Default is udev necessary?

On Mon, Nov 17, 2008 at 2:32 AM, Berend Dekens <berend@cyberwizzard.nl> wrote:
> Rudi Ahlers schreef:
>>
>> I have managed to kill udev on start-up (with CTRL + C), and then it boots
>> up.
>> So, do I need udev? And what is it's purpose?
>
> Udev is a device probing layer. In the old days we had a /dev system prepped
> for standard use which would be complemented with other bootup scripts to
> make nodes for all hardware in your system.
>
> Udev is the successor of this system (the one line history version anyway)
> and builds up the /dev folder with all your devices. In theory this is great
> but most systems (and I'm fairly sure CentOS as well) still have a number of
> base nodes in /dev before udev is fully started. This helps the system boot
> and in case of emergency (udev crashing or a broken probing like you have)
> this would allow the system to boot and find its primary devices (if you are
> lucky this might include all neccesary devices, in my case for example, when
> udev won't start I only have one of 2 SATA controllers online).
>
> So in short, you might be able to turn off udev but adding new hardware,
> plugging in usb devices or similar or starting some non-standard hardware
> won't work any more. Perhaps there are more serious issues (like soft-raids
> ignoring the raid and just using one drive).
>
> You might be able to see in the kernel console (ctrl+f10) what happens just
> before the system reboots - if it is a module which fails (most likely) you
> could blacklist it. That would solve the reboots. If the module is in fact
> critical for some piece of hardware you might be able to tweak it instead of
> disabling udev altogether.
>
> Do the system logs contain any clues what is going on or does the system
> kills itself before logging to harddisc comes on?
>
> Regards,
> Berend Dekens
> _______________________________________________

Hi Barend,

Thanx for the info

Unfortunately I don't see anything useful in the logs. If I let it
bootup by itself, then it reboots just after booting udev. If,
however, I press CTRL+C the moment I see udev on the screen, I have
attached a snippet from /var/log/message - which doesn't show me
anything at all.


--

Kind Regards
Rudi Ahlers
Nov 17 03:07:25 zaxen01 yum: Erased: mhash
Nov 17 03:24:42 zaxen01 shutdown[3219]: shutting down for system reboot
Nov 17 03:24:42 zaxen01 gdm[1995]: Failed to start X server several times in a short time period; disabling display :0
Nov 17 03:24:44 zaxen01 avahi-daemon[1579]: Got SIGTERM, quitting.
Nov 17 03:24:44 zaxen01 avahi-daemon[1579]: Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::21c:c0ff:fe52:6ad8.
Nov 17 03:24:44 zaxen01 avahi-daemon[1579]: Leaving mDNS multicast group on interface eth0.IPv4 with address 196.34.136.110.
Nov 17 03:24:51 zaxen01 auditd[1052]: The audit daemon is exiting.
Nov 17 03:24:51 zaxen01 kernel: audit(1226885091.615:25): audit_pid=0 old=1052 by auid=4294967295
Nov 17 03:24:51 zaxen01 kernel: Kernel logging (proc) stopped.
Nov 17 03:24:51 zaxen01 kernel: Kernel log daemon terminating.
Nov 17 03:24:52 zaxen01 exiting on signal 15
Nov 17 03:28:42 zaxen01 syslogd 1.4.1: restart.
Nov 17 03:28:42 zaxen01 kernel: klogd 1.4.1, log source = /proc/kmsg started.
Nov 17 03:28:42 zaxen01 kernel: Linux version 2.6.18-92.1.18.el5xen (mockbuild@builder16.centos.org) (gcc version 4.1.2 20071124 (Red Hat 4.1.2-42)) #1 SMP Wed Nov 12 10:35:03 EST 2008
Nov 17 03:28:42 zaxen01 kernel: BIOS-provided physical RAM map:
Nov 17 03:28:42 zaxen01 kernel: Xen: 0000000000000000 - 00000001f33a8000 (usable)
Nov 17 03:28:42 zaxen01 kernel: 7259MB HIGHMEM available.
Nov 17 03:28:42 zaxen01 kernel: 727MB LOWMEM available.
Nov 17 03:28:42 zaxen01 kernel: Using x86 segment limits to approximate NX protection
Nov 17 03:28:42 zaxen01 kernel: found SMP MP-table at 000fe200
Nov 17 03:28:42 zaxen01 kernel: DMI 2.4 present.
Nov 17 03:28:42 zaxen01 kernel: ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
Nov 17 03:28:42 zaxen01 kernel: ACPI: LAPIC (acpi_id[0x03] lapic_id[0x02] enabled)
Nov 17 03:28:42 zaxen01 kernel: ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
Nov 17 03:28:42 zaxen01 kernel: ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] enabled)
Nov 17 03:28:42 zaxen01 kernel: ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1])
Nov 17 03:28:42 zaxen01 kernel: ACPI: LAPIC_NMI (acpi_id[0x02] dfl dfl lint[0x1])
Nov 17 03:28:42 zaxen01 kernel: ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
Nov 17 03:28:42 zaxen01 kernel: IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
Nov 17 03:28:42 zaxen01 kernel: ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
Nov 17 03:28:42 zaxen01 kernel: ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
Nov 17 03:28:42 zaxen01 kernel: Enabling APIC mode: Flat. Using 1 I/O APICs
Nov 17 03:28:42 zaxen01 kernel: Using ACPI (MADT) for SMP configuration information
Nov 17 03:28:42 zaxen01 kernel: Built 1 zonelists. Total pages: 2044840
Nov 17 03:28:42 zaxen01 kernel: Kernel command line: ro root=/dev/System/root rhgb quiet
Nov 17 03:28:42 zaxen01 kernel: Enabling fast FPU save and restore... done.
Nov 17 03:28:42 zaxen01 kernel: Enabling unmasked SIMD FPU exception support... done.
Nov 17 03:28:42 zaxen01 kernel: Initializing CPU#0
Nov 17 03:28:42 zaxen01 kernel: CPU 0 irqstacks, hard=c073d000 soft=c071d000
Nov 17 03:28:42 zaxen01 kernel: PID hash table entries: 4096 (order: 12, 16384 bytes)
Nov 17 03:28:42 zaxen01 kernel: Xen reported: 9015.632 MHz processor.
Nov 17 03:28:42 zaxen01 kernel: Console: colour VGA+ 80x25
Nov 17 03:28:42 zaxen01 kernel: Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Nov 17 03:28:42 zaxen01 kernel: Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Nov 17 03:28:42 zaxen01 kernel: Software IO TLB enabled:
Nov 17 03:28:42 zaxen01 kernel: Aperture: 64 megabytes
Nov 17 03:28:42 zaxen01 kernel: Kernel range: 0x00000000c5caf000 - 0x00000000c9caf000
Nov 17 03:28:42 zaxen01 kernel: vmalloc area: ee000000-f4ffe000, maxmem 2d7fe000
Nov 17 03:28:42 zaxen01 kernel: Memory: 8018788k/8179360k available (2099k kernel code, 151168k reserved, 874k data, 176k init, 7433896k highmem)
Nov 17 03:28:42 zaxen01 kernel: Checking if this processor honours the WP bit even in supervisor mode... Ok.
Nov 17 03:28:42 zaxen01 kernel: Calibrating delay using timer specific routine.. 6216.33 BogoMIPS (lpj=12432668)
Nov 17 03:28:42 zaxen01 kernel: Security Framework v1.0.0 initialized
Nov 17 03:28:42 zaxen01 kernel: SELinux: Initializing.
Nov 17 03:28:42 zaxen01 kernel: selinux_register_security: Registering secondary module capability
Nov 17 03:28:42 zaxen01 kernel: Capability LSM initialized as secondary
Nov 17 03:28:42 zaxen01 kernel: Mount-cache hash table entries: 512
Nov 17 03:28:42 zaxen01 kernel: CPU: L1 I cache: 32K, L1 D cache: 32K
Nov 17 03:28:42 zaxen01 kernel: CPU: L2 cache: 3072K
Nov 17 03:28:42 zaxen01 kernel: Checking 'hlt' instruction... OK.
Nov 17 03:28:43 zaxen01 kernel: SMP alternatives: switching to UP code
Nov 17 03:28:43 zaxen01 kernel: ACPI: Core revision 20060707
Nov 17 03:28:43 zaxen01 kernel: CPU 1 irqstacks, hard=c073e000 soft=c071e000
Nov 17 03:28:43 zaxen01 kernel: CPU 2 irqstacks, hard=c073f000 soft=c071f000
Nov 17 03:28:43 zaxen01 kernel: CPU 3 irqstacks, hard=c0740000 soft=c0720000
Nov 17 03:28:43 zaxen01 kernel: ENABLING IO-APIC IRQs
Nov 17 03:28:43 zaxen01 kernel: SMP alternatives: switching to SMP code
Nov 17 03:28:43 zaxen01 kernel: Initializing CPU#1
Nov 17 03:28:43 zaxen01 kernel: Initializing CPU#2
Nov 17 03:28:43 zaxen01 kernel: Brought up 4 CPUs
Nov 17 03:28:43 zaxen01 kernel: Initializing CPU#3
Nov 17 03:28:43 zaxen01 kernel: migration_cost=189
Nov 17 03:28:43 zaxen01 kernel: checking if image is initramfs... it is
Nov 17 03:28:43 zaxen01 kernel: Freeing initrd memory: 6877k freed
Nov 17 03:28:43 zaxen01 kernel: Grant table initialized
Nov 17 03:28:43 zaxen01 kernel: NET: Registered protocol family 16
Nov 17 03:28:43 zaxen01 kernel: No dock devices found.
Nov 17 03:28:43 zaxen01 kernel: ACPI: bus type pci registered
Nov 17 03:28:43 zaxen01 kernel: PCI: BIOS Bug: MCFG area at f0000000 is not E820-reserved
Nov 17 03:28:43 zaxen01 kernel: PCI: Not using MMCONFIG.
Nov 17 03:28:43 zaxen01 kernel: PCI: Using configuration type 1
Nov 17 03:28:43 zaxen01 kernel: Setting up standard PCI resources
Nov 17 03:28:43 zaxen01 kernel: Allocating PCI resources starting at d4000000 (gap: d0000000:2ff00000)
Nov 17 03:28:43 zaxen01 kernel: ACPI: Interpreter enabled
Nov 17 03:28:43 zaxen01 kernel: ACPI: Using IOAPIC for interrupt routing
Nov 17 03:28:43 zaxen01 kernel: ACPI: PCI Root Bridge [PCI0] (0000:00)
Nov 17 03:28:43 zaxen01 kernel: PCI quirk: region 0400-047f claimed by ICH6 ACPI/GPIO/TCO
Nov 17 03:28:43 zaxen01 kernel: PCI quirk: region 0500-053f claimed by ICH6 GPIO
Nov 17 03:28:43 zaxen01 kernel: PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.2
Nov 17 03:28:43 zaxen01 kernel: PCI: Transparent bridge - 0000:00:1e.0
Nov 17 03:28:43 zaxen01 kernel: ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 7 9 10 *11 12)
Nov 17 03:28:43 zaxen01 kernel: ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 7 9 10 11 12) *0, disabled.
Nov 17 03:28:43 zaxen01 kernel: ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 7 9 10 *11 12)
Nov 17 03:28:43 zaxen01 kernel: ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 7 9 10 *11 12)
Nov 17 03:28:43 zaxen01 kernel: ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 7 *9 10 11 12)
Nov 17 03:28:43 zaxen01 kernel: ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 7 9 *10 11 12)
Nov 17 03:28:43 zaxen01 kernel: ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 7 *9 10 11 12)
Nov 17 03:28:43 zaxen01 kernel: ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 7 9 *10 11 12)
Nov 17 03:28:43 zaxen01 kernel: Linux Plug and Play Support v0.97 (c) Adam Belay
Nov 17 03:28:43 zaxen01 kernel: pnp: PnP ACPI init
Nov 17 03:28:43 zaxen01 kernel: pnp: PnP ACPI: found 12 devices
Nov 17 03:28:43 zaxen01 kernel: xen_mem: Initialising balloon driver.
Nov 17 03:28:43 zaxen01 kernel: usbcore: registered new driver usbfs
Nov 17 03:28:43 zaxen01 kernel: usbcore: registered new driver hub
Nov 17 03:28:43 zaxen01 kernel: PCI: Using ACPI for IRQ routing
Nov 17 03:28:43 zaxen01 kernel: PCI: If a device doesn't work, try "pci=routeirq". If it helps, post a report
Nov 17 03:28:43 zaxen01 kernel: NetLabel: Initializing
Nov 17 03:28:43 zaxen01 kernel: NetLabel: domain hash size = 128
Nov 17 03:28:43 zaxen01 kernel: NetLabel: protocols = UNLABELED CIPSOv4
Nov 17 03:28:43 zaxen01 kernel: NetLabel: unlabeled traffic allowed by default
Nov 17 03:28:43 zaxen01 kernel: pnp: 00:06: ioport range 0x500-0x53f has been reserved
Nov 17 03:28:43 zaxen01 kernel: pnp: 00:06: ioport range 0x400-0x47f could not be reserved
Nov 17 03:28:43 zaxen01 kernel: pnp: 00:06: ioport range 0x360-0x361 has been reserved
Nov 17 03:28:43 zaxen01 kernel: pnp: 00:06: ioport range 0x680-0x6ff has been reserved
Nov 17 03:28:43 zaxen01 kernel: PCI: Ignore bogus resource 6 [0:0] of 0000:00:02.0
Nov 17 03:28:43 zaxen01 kernel: PCI: Bridge: 0000:00:1c.0
Nov 17 03:28:43 zaxen01 kernel: IO window: disabled.
Nov 17 03:28:43 zaxen01 kernel: MEM window: disabled.
Nov 17 03:28:43 zaxen01 kernel: PREFETCH window: disabled.
Nov 17 03:28:43 zaxen01 kernel: PCI: Bridge: 0000:00:1c.1
Nov 17 03:28:43 zaxen01 kernel: IO window: disabled.
Nov 17 03:28:43 zaxen01 kernel: MEM window: disabled.
Nov 17 03:28:43 zaxen01 kernel: PREFETCH window: disabled.
Nov 17 03:28:43 zaxen01 kernel: PCI: Bridge: 0000:00:1c.2
Nov 17 03:28:43 zaxen01 kernel: IO window: 1000-1fff
Nov 17 03:28:43 zaxen01 kernel: MEM window: disabled.
Nov 17 03:28:43 zaxen01 kernel: PREFETCH window: e0400000-e04fffff
Nov 17 03:28:43 zaxen01 kernel: PCI: Bridge: 0000:00:1e.0
Nov 17 03:28:43 zaxen01 kernel: IO window: disabled.
Nov 17 03:28:43 zaxen01 kernel: MEM window: e0000000-e00fffff
Nov 17 03:28:43 zaxen01 kernel: PREFETCH window: disabled.
Nov 17 03:28:43 zaxen01 kernel: ACPI: PCI Interrupt 0000:00:1c.0[A] -> GSI 17 (level, low) -> IRQ 16
Nov 17 03:28:43 zaxen01 kernel: ACPI: PCI Interrupt 0000:00:1c.1[b] -> GSI 16 (level, low) -> IRQ 17
Nov 17 03:28:43 zaxen01 kernel: ACPI: PCI Interrupt 0000:00:1c.2[C] -> GSI 18 (level, low) -> IRQ 18
Nov 17 03:28:43 zaxen01 kernel: NET: Registered protocol family 2
Nov 17 03:28:43 zaxen01 kernel: IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
Nov 17 03:28:43 zaxen01 kernel: TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
Nov 17 03:28:43 zaxen01 kernel: TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
Nov 17 03:28:43 zaxen01 kernel: TCP: Hash tables configured (established 131072 bind 65536)
Nov 17 03:28:43 zaxen01 kernel: TCP reno registered
Nov 17 03:28:43 zaxen01 kernel: audit: initializing netlink socket (disabled)
Nov 17 03:28:43 zaxen01 kernel: audit(1226892439.724:1): initialized
Nov 17 03:28:43 zaxen01 kernel: highmem bounce pool size: 64 pages
Nov 17 03:28:43 zaxen01 kernel: VFS: Disk quotas dquot_6.5.1
Nov 17 03:28:43 zaxen01 kernel: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Nov 17 03:28:43 zaxen01 kernel: Initializing Cryptographic API
Nov 17 03:28:43 zaxen01 kernel: ksign: Installing public key data
Nov 17 03:28:43 zaxen01 kernel: Loading keyring
Nov 17 03:28:44 zaxen01 kernel: - Added public key D3EA94021E21230
Nov 17 03:28:44 zaxen01 kernel: - User ID: CentOS (Kernel Module GPG key)
Nov 17 03:28:44 zaxen01 kernel: io scheduler noop registered
Nov 17 03:28:44 zaxen01 kernel: io scheduler anticipatory registered
Nov 17 03:28:44 zaxen01 kernel: io scheduler deadline registered
Nov 17 03:28:44 zaxen01 kernel: io scheduler cfq registered (default)
Nov 17 03:28:44 zaxen01 kernel: assign_interrupt_mode Found MSI capability
Nov 17 03:28:44 zaxen01 last message repeated 2 times
Nov 17 03:28:44 zaxen01 kernel: pci_hotplug: PCI Hot Plug PCI Core version: 0.5
Nov 17 03:28:44 zaxen01 kernel: ACPI: Processor [CPU0] (supports 8 throttling states)
Nov 17 03:28:44 zaxen01 kernel: ACPI: Processor [CPU1] (supports 8 throttling states)
Nov 17 03:28:44 zaxen01 kernel: ACPI: Processor [CPU2] (supports 8 throttling states)
Nov 17 03:28:44 zaxen01 kernel: ACPI: Processor [CPU3] (supports 8 throttling states)
Nov 17 03:28:44 zaxen01 kernel: Real Time Clock Driver v1.12ac
Nov 17 03:28:44 zaxen01 kernel: Non-volatile memory driver v1.2
Nov 17 03:28:44 zaxen01 kernel: Linux agpgart interface v0.101 (c) Dave Jones
Nov 17 03:28:44 zaxen01 kernel: agpgart: Detected an Intel 965G Chipset.
Nov 17 03:28:44 zaxen01 kernel: agpgart: Detected 7676K stolen memory.
Nov 17 03:28:44 zaxen01 kernel: agpgart: AGP aperture is 256M @ 0xd0000000
Nov 17 03:28:44 zaxen01 kernel: RAMDISK driver initialized: 16 RAM disks of 16384K size 4096 blocksize
Nov 17 03:28:44 zaxen01 kernel: Xen virtual console successfully installed as ttyS0
Nov 17 03:28:44 zaxen01 kernel: Event-channel device installed.
Nov 17 03:28:44 zaxen01 kernel: Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
Nov 17 03:28:44 zaxen01 kernel: ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
Nov 17 03:28:44 zaxen01 kernel: JMB368: IDE controller at PCI slot 0000:03:00.0
Nov 17 03:28:44 zaxen01 kernel: ACPI: PCI Interrupt 0000:03:00.0[A] -> GSI 18 (level, low) -> IRQ 18
Nov 17 03:28:44 zaxen01 kernel: JMB368: chipset revision 0
Nov 17 03:28:44 zaxen01 kernel: JMB368: 100% native mode on irq 18
Nov 17 03:28:44 zaxen01 kernel: ide2: BM-DMA at 0x1000-0x1007, BIOS settings: hdeio, hdfio
Nov 17 03:28:44 zaxen01 kernel: ide3: BM-DMA at 0x1008-0x100f, BIOS settings: hdgio, hdhio
Nov 17 03:28:44 zaxen01 kernel: hda: ST3500320AS, ATA DISK drive
Nov 17 03:28:44 zaxen01 kernel: ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Nov 17 03:28:44 zaxen01 kernel: hda: max request size: 512KiB
Nov 17 03:28:44 zaxen01 kernel: hda: 976773168 sectors (500107 MB), CHS=60801/255/63
Nov 17 03:28:44 zaxen01 kernel: hda: cache flushes supported
Nov 17 03:28:44 zaxen01 kernel: hda: hda1 hda2
Nov 17 03:28:44 zaxen01 kernel: ide-floppy driver 0.99.newide
Nov 17 03:28:44 zaxen01 kernel: usbcore: registered new driver hiddev
Nov 17 03:28:44 zaxen01 kernel: usbcore: registered new driver usbhid
Nov 17 03:28:44 zaxen01 kernel: drivers/usb/input/hid-core.c: v2.6:USB HID core driver
Nov 17 03:28:44 zaxen01 kernel: PNP: PS/2 Controller [PNP0303:PS2K,PNP0f03:PS2M] at 0x60,0x64 irq 1,12
Nov 17 03:28:44 zaxen01 kernel: serio: i8042 KBD port at 0x60,0x64 irq 1
Nov 17 03:28:44 zaxen01 kernel: serio: i8042 AUX port at 0x60,0x64 irq 12
Nov 17 03:28:44 zaxen01 kernel: mice: PS/2 mouse device common for all mice
Nov 17 03:28:44 zaxen01 kernel: md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
Nov 17 03:28:44 zaxen01 kernel: md: bitmap version 4.39
Nov 17 03:28:44 zaxen01 kernel: TCP bic registered
Nov 17 03:28:44 zaxen01 kernel: Initializing IPsec netlink socket
Nov 17 03:28:44 zaxen01 kernel: NET: Registered protocol family 1
Nov 17 03:28:44 zaxen01 kernel: NET: Registered protocol family 17
Nov 17 03:28:44 zaxen01 kernel: Using IPI No-Shortcut mode
Nov 17 03:28:44 zaxen01 kernel: Freeing unused kernel memory: 176k freed
Nov 17 03:28:44 zaxen01 kernel: Write protecting the kernel read-only data: 380k
Nov 17 03:28:44 zaxen01 kernel: ACPI: PCI Interrupt 0000:00:1a.7[C] -> GSI 18 (level, low) -> IRQ 18
Nov 17 03:28:44 zaxen01 kernel: ehci_hcd 0000:00:1a.7: EHCI Host Controller
Nov 17 03:28:44 zaxen01 kernel: ehci_hcd 0000:00:1a.7: new USB bus registered, assigned bus number 1
Nov 17 03:28:44 zaxen01 kernel: ehci_hcd 0000:00:1a.7: debug port 1
Nov 17 03:28:44 zaxen01 kernel: ehci_hcd 0000:00:1a.7: irq 18, io mem 0xe0325400
Nov 17 03:28:44 zaxen01 kernel: ehci_hcd 0000:00:1a.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
Nov 17 03:28:44 zaxen01 kernel: usb usb1: configuration #1 chosen from 1 choice
Nov 17 03:28:44 zaxen01 kernel: hub 1-0:1.0: USB hub found
Nov 17 03:28:44 zaxen01 kernel: hub 1-0:1.0: 4 ports detected
Nov 17 03:28:44 zaxen01 kernel: ACPI: PCI Interrupt 0000:00:1d.7[A] -> GSI 23 (level, low) -> IRQ 19
Nov 17 03:28:44 zaxen01 kernel: ehci_hcd 0000:00:1d.7: EHCI Host Controller
Nov 17 03:28:44 zaxen01 kernel: ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 2
Nov 17 03:28:44 zaxen01 kernel: ehci_hcd 0000:00:1d.7: debug port 1
Nov 17 03:28:44 zaxen01 kernel: ehci_hcd 0000:00:1d.7: irq 19, io mem 0xe0325000
Nov 17 03:28:44 zaxen01 kernel: ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
Nov 17 03:28:44 zaxen01 kernel: usb usb2: configuration #1 chosen from 1 choice
Nov 17 03:28:44 zaxen01 kernel: hub 2-0:1.0: USB hub found
Nov 17 03:28:44 zaxen01 kernel: hub 2-0:1.0: 6 ports detected
Nov 17 03:28:44 zaxen01 kernel: USB Universal Host Controller Interface driver v3.0
Nov 17 03:28:44 zaxen01 kernel: ACPI: PCI Interrupt 0000:00:1a.0[A] -> GSI 16 (level, low) -> IRQ 17
Nov 17 03:28:44 zaxen01 kernel: uhci_hcd 0000:00:1a.0: UHCI Host Controller
Nov 17 03:28:44 zaxen01 kernel: uhci_hcd 0000:00:1a.0: new USB bus registered, assigned bus number 3
Nov 17 03:28:44 zaxen01 kernel: uhci_hcd 0000:00:1a.0: irq 17, io base 0x000020a0
Nov 17 03:28:44 zaxen01 kernel: usb usb3: configuration #1 chosen from 1 choice
Nov 17 03:28:44 zaxen01 kernel: hub 3-0:1.0: USB hub found
Nov 17 03:28:44 zaxen01 kernel: hub 3-0:1.0: 2 ports detected
Nov 17 03:28:44 zaxen01 kernel: ACPI: PCI Interrupt 0000:00:1a.1[b] -> GSI 21 (level, low) -> IRQ 20
Nov 17 03:28:44 zaxen01 kernel: uhci_hcd 0000:00:1a.1: UHCI Host Controller
Nov 17 03:28:44 zaxen01 kernel: uhci_hcd 0000:00:1a.1: new USB bus registered, assigned bus number 4
Nov 17 03:28:44 zaxen01 kernel: uhci_hcd 0000:00:1a.1: irq 20, io base 0x00002080
Nov 17 03:28:44 zaxen01 kernel: usb usb4: configuration #1 chosen from 1 choice
Nov 17 03:28:44 zaxen01 kernel: hub 4-0:1.0: USB hub found
Nov 17 03:28:44 zaxen01 kernel: hub 4-0:1.0: 2 ports detected
Nov 17 03:28:44 zaxen01 kernel: ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 23 (level, low) -> IRQ 19
Nov 17 03:28:44 zaxen01 kernel: uhci_hcd 0000:00:1d.0: UHCI Host Controller
Nov 17 03:28:44 zaxen01 kernel: uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 5
Nov 17 03:28:44 zaxen01 kernel: uhci_hcd 0000:00:1d.0: irq 19, io base 0x00002060
Nov 17 03:28:44 zaxen01 kernel: usb usb5: configuration #1 chosen from 1 choice
Nov 17 03:28:44 zaxen01 kernel: hub 5-0:1.0: USB hub found
Nov 17 03:28:44 zaxen01 kernel: hub 5-0:1.0: 2 ports detected
Nov 17 03:28:44 zaxen01 kernel: ACPI: PCI Interrupt 0000:00:1d.1[b] -> GSI 19 (level, low) -> IRQ 21
Nov 17 03:28:44 zaxen01 kernel: uhci_hcd 0000:00:1d.1: UHCI Host Controller
Nov 17 03:28:44 zaxen01 kernel: uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 6
Nov 17 03:28:45 zaxen01 kernel: uhci_hcd 0000:00:1d.1: irq 21, io base 0x00002040
Nov 17 03:28:45 zaxen01 kernel: usb usb6: configuration #1 chosen from 1 choice
Nov 17 03:28:45 zaxen01 kernel: hub 6-0:1.0: USB hub found
Nov 17 03:28:45 zaxen01 kernel: hub 6-0:1.0: 2 ports detected
Nov 17 03:28:45 zaxen01 kernel: ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 18
Nov 17 03:28:45 zaxen01 kernel: uhci_hcd 0000:00:1d.2: UHCI Host Controller
Nov 17 03:28:45 zaxen01 kernel: uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 7
Nov 17 03:28:45 zaxen01 kernel: uhci_hcd 0000:00:1d.2: irq 18, io base 0x00002020
Nov 17 03:28:45 zaxen01 kernel: usb usb7: configuration #1 chosen from 1 choice
Nov 17 03:28:45 zaxen01 kernel: hub 7-0:1.0: USB hub found
Nov 17 03:28:45 zaxen01 kernel: hub 7-0:1.0: 2 ports detected
Nov 17 03:28:45 zaxen01 kernel: usb 5-1: new low speed USB device using uhci_hcd and address 2
Nov 17 03:28:45 zaxen01 kernel: usb 5-1: configuration #1 chosen from 1 choice
Nov 17 03:28:45 zaxen01 kernel: input: USB Keyboard as /class/input/input0
Nov 17 03:28:45 zaxen01 kernel: input: USB HID v1.10 Keyboard [USB Keyboard] on usb-0000:00:1d.0-1
Nov 17 03:28:45 zaxen01 kernel: input: USB Keyboard as /class/input/input1
Nov 17 03:28:45 zaxen01 kernel: input: USB HID v1.10 Device [USB Keyboard] on usb-0000:00:1d.0-1
Nov 17 03:28:45 zaxen01 kernel: usb 7-2: new low speed USB device using uhci_hcd and address 2
Nov 17 03:28:45 zaxen01 kernel: SCSI subsystem initialized
Nov 17 03:28:45 zaxen01 kernel: usb 7-2: device descriptor read/64, error -71
Nov 17 03:28:45 zaxen01 kernel: ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ]
Nov 17 03:28:45 zaxen01 kernel: ACPI: PCI Interrupt 0000:00:1f.2[A] -> GSI 19 (level, low) -> IRQ 21
Nov 17 03:28:45 zaxen01 kernel: ata_piix 0000:00:1f.2: 0x1F0 IDE port busy
Nov 17 03:28:45 zaxen01 kernel: scsi0 : ata_piix
Nov 17 03:28:45 zaxen01 kernel: scsi1 : ata_piix
Nov 17 03:28:45 zaxen01 kernel: ata1: DUMMY
Nov 17 03:28:45 zaxen01 kernel: ata2: SATA max UDMA/133 bmdma 0x2418 irq 15
Nov 17 03:28:45 zaxen01 kernel: usb 7-2: device descriptor read/64, error -71
Nov 17 03:28:45 zaxen01 kernel: ata_piix 0000:00:1f.5: MAP [ P0 -- P1 -- ]
Nov 17 03:28:45 zaxen01 kernel: ACPI: PCI Interrupt 0000:00:1f.5[A] -> GSI 19 (level, low) -> IRQ 21
Nov 17 03:28:45 zaxen01 kernel: scsi2 : ata_piix
Nov 17 03:28:45 zaxen01 kernel: scsi3 : ata_piix
Nov 17 03:28:45 zaxen01 kernel: ata3: SATA max UDMA/133 cmd 0x2428 ctl 0x244c bmdma 0x20f0 irq 21
Nov 17 03:28:45 zaxen01 kernel: ata4: SATA max UDMA/133 cmd 0x2420 ctl 0x2448 bmdma 0x20f8 irq 21
Nov 17 03:28:45 zaxen01 kernel: usb 7-2: new low speed USB device using uhci_hcd and address 3
Nov 17 03:28:45 zaxen01 kernel: usb 7-2: device descriptor read/64, error -71
Nov 17 03:28:45 zaxen01 kernel: device-mapper: uevent: version 1.0.3
Nov 17 03:28:45 zaxen01 kernel: device-mapper: ioctl: 4.11.5-ioctl (2007-12-12) initialised: dm-devel@redhat.com
Nov 17 03:29:07 zaxen01 avahi-daemon[5139]: WARNING: No NSS support for mDNS detected, consider installing nss-mdns!
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Old 11-17-2008, 03:23 AM
Berend Dekens
 
Default is udev necessary?

Rudi Ahlers schreef:

Unfortunately I don't see anything useful in the logs. If I let it
bootup by itself, then it reboots just after booting udev. If,
however, I press CTRL+C the moment I see udev on the screen, I have
attached a snippet from /var/log/message - which doesn't show me
anything at all.

Indeed - I see some error messages about memory being assign to weird
places and ata1 claiming to be a dummy... But nothing that should
warrant something like a reboot...


I did however see some Xen messages. I am no expert so I can't see if
this is a hypervisor kernel or a virtual machine kernel. If you are not
planning on using the machine for or in an Xen environment, you could
try to switch to a regular one (even if it is for testing). I have had
some strange behaviour from systems which reacted poorly to
virtualisation software (most of those get fixed but they can send you
into the wrong direction).


Another thing that came to mind was that udev might finish properly but
the next task might crash the system. I would however expect something
in the message output. Did you check if the udev service claimed to be
started if you ctrl+c out of it? Its unlikely but can't hurt to test.


If all else fails, you could probably disable udev for now and check if
everything is working (make sure you don't need pluggable device
support, otherwise you really do need udev). Plan B would be to Google
for a debugging mode in udev - unless someone on the list knows how to
activate that. My guess would be to edit the udev script and pass
something to the program (most of the time its something like '-v' or
'-vv' or '-d' or something - look for verbose or debug options).


Good luck,
Berend
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Old 11-18-2008, 02:29 PM
Phil Schaffner
 
Default is udev necessary?

Rudi Ahlers wrote:
...

I have managed to kill udev on start-up (with CTRL + C), and then it boots up.


Try mkinitrd for the current hardware configuration.

Phil

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