Bug#462154: mdadm: It's not only --monitor --scan

[Christian Pernegger]

Package: mdadm
Version: 2.6.4-1
Followup-For: Bug #462154


I've had it after a few creates (raid benchmarking atm) as well, and assembles.

It seems to crash *after* what it's supposed to do, though, i. e.:

segfault at 0000000000000000 rip 0000000000412d2c rsp 00007fffc0bf9eb0 error 4
segfault at 0000000000000000 rip 0000000000412d2c rsp 00007fff9f31b5d0 error 4
segfault at 0000000000000000 rip 0000000000412d2c rsp 00007fffd6f371f0 error 4
segfault at 0000000000000000 rip 0000000000412d2c rsp 00007fffa08b5b70 error 4
segfault at 0000000000000000 rip 0000000000412d2c rsp 00007fff78944c00 error 4
segfault at 0000000000000000 rip 0000000000412d2c rsp 00007fffc0bf9eb0 error 4
....

-- Package-specific info:
--- mount output
/dev/mapper/sda2_crypt on / type ext3 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
procbususb on /proc/bus/usb type usbfs (rw)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
/dev/sda1 on /boot type ext3 (rw)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)

--- mdadm.conf
# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#

# by default, scan all partitions (/proc/partitions) for MD superblocks.
# alternatively, specify devices to scan, using wildcards if desired.
DEVICE partitions

# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes

# automatically tag new arrays as belonging to the local system
HOMEHOST <system>

# instruct the monitoring daemon where to send mail alerts
MAILADDR root

# This file was auto-generated on Sat, 01 Mar 2008 16:36:24 +0100
# by mkconf $Id$

--- /proc/mdstat:
Personalities : [raid6] [raid5] [raid4] 
md0 : active(auto-read-only) raid5 sdb[0] sde[4] sdd[2] sdc[1]
      12582912 blocks super 1.0 level 5, 1024k chunk, algorithm 2 [4/4] [UUUU]
      bitmap: 0/1 pages [0KB], 131072KB chunk

unused devices: <none>

--- /proc/partitions:
major minor  #blocks  name

   8     0   71833096 sda
   8     1     248976 sda1
   8     2   15623212 sda2
   8    16  976762584 sdb
   8    32  976762584 sdc
   8    48  976762584 sdd
   8    64  976762584 sde
   9     0   12582912 md0
 253     0   15622184 dm-0

--- initrd.img-2.6.22-3-amd64:
35917 blocks
lib/modules/2.6.22-3-amd64/kernel/drivers/md/raid10.ko
lib/modules/2.6.22-3-amd64/kernel/drivers/md/multipath.ko
lib/modules/2.6.22-3-amd64/kernel/drivers/md/raid0.ko
lib/modules/2.6.22-3-amd64/kernel/drivers/md/dm-crypt.ko
lib/modules/2.6.22-3-amd64/kernel/drivers/md/raid1.ko
lib/modules/2.6.22-3-amd64/kernel/drivers/md/raid456.ko
lib/modules/2.6.22-3-amd64/kernel/drivers/md/md-mod.ko
lib/modules/2.6.22-3-amd64/kernel/drivers/md/linear.ko
lib/modules/2.6.22-3-amd64/kernel/drivers/md/dm-mod.ko
lib/modules/2.6.22-3-amd64/kernel/drivers/md/xor.ko
scripts/local-top/mdadm
sbin/mdadm
etc/mdadm
etc/mdadm/mdadm.conf

--- /proc/modules:
dm_crypt 18192 1 - Live 0xffffffff88194000
dm_mod 64112 3 dm_crypt, Live 0xffffffff88183000
raid456 126240 1 - Live 0xffffffff88163000
md_mod 83996 1 raid456, Live 0xffffffff8814d000
xor 10256 1 raid456, Live 0xffffffff88149000

--- volume detail:

--- /proc/cmdline
root=/dev/mapper/sda2_crypt ro 

--- grub:
kernel		/vmlinuz-2.6.22-3-amd64 root=/dev/mapper/sda2_crypt ro 
kernel		/vmlinuz-2.6.22-3-amd64 root=/dev/mapper/sda2_crypt ro single


-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.22-3-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_AT.UTF-8, LC_CTYPE=de_AT.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages mdadm depends on:
ii  debconf                       1.5.19     Debian configuration management sy
ii  libc6                         2.7-6      GNU C Library: Shared libraries
ii  lsb-base                      3.1-24     Linux Standard Base 3.1 init scrip
ii  makedev                       2.3.1-87   creates device files in /dev
ii  udev                          0.114-2    /dev/ and hotplug management daemo

Versions of packages mdadm recommends:
pn  mail-transport-agent         <none>      (no description available)
ii  module-init-tools            3.3-pre11-4 tools for managing Linux kernel mo

-- debconf information:
* mdadm/autostart: true
* mdadm/mail_to: root
  mdadm/initrdstart_msg_errmd:
* mdadm/initrdstart: all
  mdadm/initrdstart_msg_errconf:
  mdadm/initrdstart_notinconf: false
  mdadm/initrdstart_msg_errexist:
  mdadm/initrdstart_msg_intro:
* mdadm/autocheck: true
  mdadm/initrdstart_msg_errblock:
* mdadm/start_daemon: true