Bug#523942: linux-image-2.6.26-2-s390 will not boot!
Package: linux-image-2.6.26-2-s390
Version: 2.6.26-15
Severity: critical
This particular Linux kernel image will not boot on a virtual machine in ESA mode under z/VM. I have not tried other platforms (LPAR, for example).
Here is the boot log:
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Booting default (debian)...
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 2.6.26-2-s390 (Debian 2.6.26-15) (dannf@debian.org) (gcc version 4.1.3 20080704 (prerelease) (Debian 4.1.2-25)) #1 SMP Fri Mar 27 03:31:55 UTC 2009
[ 0.000000] We are running under VM (31 bit mode)
[ 0.000000] This machine has an IEEE fpu
[ 0.000000] Zone PFN ranges:
[ 0.000000] Normal 0 -> 131072
[ 0.000000] Movable zone start PFN for each node
[ 0.000000] early_node_map[1] active PFN ranges
[ 0.000000] 0: 0 -> 131071
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130047
[ 0.000000] Kernel command line: root=/dev/dasda1 vmhalt=LOGOFF vmpoff=LOGOFF BOOT_IMAGE=0
[ 0.000000] PID hash table entries: 2048 (order: 11, 8192 bytes)
[17179568.184350] console [ttyS0] enabled
[17179569.185299] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[17179568.186409] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[17179569.195235] Memory: 510848k/524288k available (2272k kernel code, 0k reserved, 844k data, 148k init)
[17179569.195254] Write protected kernel read-only data: 0x12000 - 0x2eefff
[17179568.196240] Security Framework initialized
[17179569.196258] SELinux: Disabled at boot.
[17179568.196276] Capability LSM initialized
[17179568.196413] Mount-cache hash table entries: 512
[17179569.197399] Initializing cgroup subsys ns
[17179569.197420] Initializing cgroup subsys cpuacct
[17179568.197484] Initializing cgroup subsys devices
[17179569.320946] CPUs: 1 configured, 0 standby
[17179569.471072] cpu 0 phys_idx=0 vers=FF ident=0503CC machine=2086 unused=8000
[17179568.472235] Brought up 1 CPUs
[17179569.472695] net_namespace: 660 bytes
[17179569.473175] NET: Registered protocol family 16
[17179569.557633] IP route cache hash table entries: 16384 (order: 4, 65536 bytes)
[17179569.557633] TCP established hash table entries: 65536 (order: 7, 524288 bytes)
[17179569.560173] TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
[17179569.562589] TCP: Hash tables configured (established 65536 bind 65536)
[17179569.562616] TCP reno registered
[17179568.574245] NET: Registered protocol family 1
[17179568.574569] checking if image is initramfs...
it is
[17179570.461614] Freeing initrd memory: 3824k freed
[17179570.463293] audit: initializing netlink socket (disabled)
[17179570.463321] type=2000 audit(1239646960.408:1): initialized
[17179570.464285] VFS: Disk quotas dquot_6.5.1
[17179570.464409] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[17179570.464471] msgmni has been set to 1005
[17179570.464744] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)
[17179570.464768] io scheduler noop registered
[17179570.464788] io schedulter anticipatory registered
[17179570.464810] io scheduler deadline registered
[17179570.464882] io scheduler cfq registered (default)
[17179570.470664] brd: module loaded
[17179570.470774] cio: Channel measurement facility using extended format (autodetected)
[17179570.470804] qdio: loading QDIO base support version 2
[17179570.473469] TCP cubic registered
[17179570.473657] NET: Registered protocol family 10
[17179570.476252] lo: Disabled Privacy Extensions
[17179570.477111] Mobile IPv6
[17179570.477143] NET: Registered protocol family 17
[17179570.477793] registered taskstats version 1
[17179570.478468] Freeing unused kernel memory: 148k freed
[17179570.479271] Kernel panic - not syncing: Attempted to kill init!
HCPGIR450W CP entered; disabled wait PSW 000A0000 8001E8FA
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In comparing this boot to the (successful) boot of its predecessor, linux-image-2.6.26-1-s390, version 2.6.26-13lenny2, the previous version loads essential modules at this point:
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Loading, please wait...
Begin: Loading essential drivers ...
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at which point the modules listed in /etc/initramfs-tools/modules are loaded. In my case, these modules are
dasd_diag_mod
dasd_eckd_mod
dasd_mod
vmcp
loop
Without the dasd modules, the permanent root file system cannot be mounted. I tried re-running update-initramfs for this specific kernel version, but it made no difference.
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