Subject: kernel: Kernel 2.6.16 attempts to access root device before running initramfs init Package: kernel Severity: important
After upgrading from 2.6.15-1-powerpc to 2.6.16-2-powerpc I received the message "VFS: Cannot open root device /dev/sda8 or unknown-block(somenumber, somenumber)" I checked the initrd and it contains the necessary modules, but none of the initrd's console messages appear on the console before the error message which leads me to believe that the kernel is attempting to look at the root device before loading the module needed to see it. The root device requires the mesh module (scsi hba) which is in the initrd. I have confirmed that the failed boot stops at the point where the initrd is loaded by carefully watching the boot messages with a working boot with 2.6.15. The point where the initramfs (initrd-xxx.img) is loaded appears to be after the freeing memory line. I indicate where the VFS: message appears during an unsuccesfull booth with -->2.6.16 dies here<-- in the dmesg output below (from a successful boot of 2.6.15) Total memory = 96MB; using 256kB for hash table (at c0340000) Linux version 2.6.15-1-powerpc (Debian 2.6.15-8) ([EMAIL PROTECTED]) (gcc version 4.0.3 20060304 (prerelease) (Debian 4.0.2-10)) #2 Mon Mar 6 12:39:17 CET 2006 Found a OHare mac-io controller, rev: 1, mapped at 0xfddc0000 PowerMac motherboard: Unknown OHare-based Cache coherency enabled for bandit/PSX Found Bandit PCI host bridge at 0xf2000000. Firmware bus number: 0->0 nvram: OF partition at 0x1800 nvram: XP partition at 0x1300 nvram: NR partition at 0x1400 On node 0 totalpages: 24576 DMA zone: 24576 pages, LIFO batch:7 DMA32 zone: 0 pages, LIFO batch:0 Normal zone: 0 pages, LIFO batch:0 HighMem zone: 0 pages, LIFO batch:0 Built 1 zonelists Kernel command line: root=/dev/sda8 ro System has 32 possible interrupts PID hash table entries: 512 (order: 9, 8192 bytes) GMT Delta read from XPRAM: -240 minutes, DST: on via_calibrate_decr: ticks per jiffy = 10000 (600019 ticks) Console: colour dummy device 80x25 serial8250_console_init: nothing to do on PowerMac Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) Memory: 88376k available (2172k kernel code, 920k data, 172k init, 0k highmem) Calibrating delay loop... 318.46 BogoMIPS (lpj=159232) Security Framework v1.0.0 initialized SELinux: Disabled at boot. Capability LSM initialized Mount-cache hash table entries: 512 checking if image is initramfs... it is Freeing initrd memory: 5354k freed NET: Registered protocol family 16 PCI: Probing PCI hardware PCI: Cannot allocate resource region 1 of device 0000:00:11.0 Registering pmac pic with sysfs... Thermal assist unit not available audit: initializing netlink socket (disabled) audit(1151007009.660:1): initialized VFS: Disk quotas dquot_6.5.1 Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) Initializing Cryptographic API io scheduler noop registered io scheduler anticipatory registered io scheduler deadline registered io scheduler cfq registered PCI: Enabling device 0000:00:11.0 (0082 -> 0083) atyfb: ATI264VTA4 (Mach64 VT) [0x5654 rev 0x40] atyfb: 2M EDO, 14.31818 MHz XTAL, 200 MHz PLL, 63 Mhz MCLK, 67 MHz XCLK atyfb: monitor sense=51e, mode 7 Console: switching to colour frame buffer device 80x30 atyfb: fb0: ATY Mach64 frame buffer device on PCI Generic RTC Driver v1.07 Macintosh non-volatile memory driver v1.1 serial8250_init: nothing to do on PowerMac pmac_zilog: 0.6 (Benjamin Herrenschmidt <[EMAIL PROTECTED]>) ttyS0 at MMIO 0xf3013020 (irq = 15) is a Z85c30 ESCC - Serial port ttyS1 at MMIO 0xf3013000 (irq = 16) is a Z85c30 ESCC - Serial port fd0: SWIM3 floppy controller RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize MacIO PCI driver attached to OHare chipset Can't request resource 0 for MacIO device 0.f3000000:ohare input: Macintosh mouse button emulation as /class/input/input0 Macintosh CUDA driver v0.5 for Unified ADB. Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx adb: starting probe task... ide0: Found Apple OHare ATA controller, bus ID 0, irq 13 Probing IDE interface ide0... adb devices: [2]: 2 1b [3]: 3 1 ADB keyboard at 2, handler set to 3 Detected ADB keyboard, type ANSI. input: ADB keyboard as /class/input/input1 ADB mouse at 3, handler set to 2 input: ADB mouse as /class/input/input2 adb: finished probe task... ide1: Found Apple OHare ATA controller, bus ID 1, irq 14 Probing IDE interface ide1... hdc: MATSHITA CR-585, ATAPI CD/DVD-ROM drive hdc: Enabling MultiWord DMA 1 ide1 at 0xc701c000-0xc701c007,0xc701c160 on irq 14 mice: PS/2 mouse device common for all mice NET: Registered protocol family 2 IP route cache hash table entries: 1024 (order: 0, 4096 bytes) TCP established hash table entries: 4096 (order: 2, 16384 bytes) TCP bind hash table entries: 4096 (order: 2, 16384 bytes) TCP: Hash tables configured (established 4096 bind 4096) TCP reno registered TCP bic registered NET: Registered protocol family 1 NET: Registered protocol family 17 -->2.6.16 dies here<-- Freeing unused kernel memory: 172k init SCSI subsystem initialized mesh: configured for synchronous 5 MB/s mesh: performing initial bus reset... scsi0 : MESH mesh: target 0 synchronous at 5.0 MB/s Vendor: IBM Model: DPSS-309170M Rev: S93E Type: Direct-Access ANSI SCSI revision: 03 SCSI device sda: 17916240 512-byte hdwr sectors (9173 MB) SCSI device sda: drive cache: write back SCSI device sda: 17916240 512-byte hdwr sectors (9173 MB) SCSI device sda: drive cache: write back sda: [mac] sda1 sda2 sda3 sda4 sda5 sda6 sda7 sda8 sda9 sda10 sd 0:0:0:0: Attached scsi disk sda 8139too Fast Ethernet driver 0.9.27 PCI: Enabling device 0000:00:0f.0 (0004 -> 0007) eth0: RealTek RTL8139 at 0x400, 00:50:ba:5b:9d:85, IRQ 25 eth0: Identified 8139 chip type 'RTL-8139C' hdc: ATAPI 24X CD-ROM drive, 128kB Cache, DMA Uniform CD-ROM driver Revision: 3.20 Attempting manual resume Linux agpgart interface v0.101 (c) Dave Jones Adding 327672k swap on /dev/sda9. Priority:-1 extents:1 across:327672k input: PowerMac Beep as /class/input/input3 device-mapper: 4.4.0-ioctl (2005-01-12) initialised: [EMAIL PROTECTED] eth0: link up, 10Mbps, half-duplex, lpa 0x0000 -- System Information: Debian Release: testing/unstable APT prefers testing APT policy: (500, 'testing'), (5, 'unstable') Architecture: powerpc (ppc) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.6.15-1-powerpc Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8) -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
