Bug#444682: mdadm segfault at super1.c:1004
Daniel van Eeden
daniel_e at dds.nl
Sun Sep 30 10:25:42 UTC 2007
Package: mdadm
Version: 2.6.3+200709292116+4450e59-1
Severity: critical
Justification: breaks the whole system
Subject: mdadm dumps core (super1.c:1004)
Package: mdadm
Version: 2.6.3+200709292116+4450e59-1
Severity: critical
Justification: breaks the whole system
Today I installed a package update for mdadm.
Setting up mdadm (2.6.3+200709292116+4450e59-1) ...
Installing new version of config file /etc/init.d/mdadm-raid ...
Installing new version of config file /etc/init.d/mdadm ...
Installing new version of config file /etc/cron.d/mdadm ...
update-initramfs: Generating /boot/initrd.img-2.6.22-2-amd64
W: mdadm: unchecked configuration file: /etc/mdadm/mdadm.conf
W: mdadm: please read /usr/share/doc/mdadm/README.upgrading-2.5.3.gz .
/usr/share/mdadm/mkconf: line 98: 11858 Segmentation fault (core
dumped) $MDADM --examine --scan --config=partitions
W: mkconf: failed to scan for partitions.
W: mdadm: failed to auto-generate temporary mdadm.conf file.
W: mdadm: using the unchecked file and hoping for the best...
Warning: LBA32 addressing assumed
Added Linux *
Skipping /vmlinuz.old
One warning was issued.
Starting MD monitoring service: mdadm --monitor.
Generating udev events for MD arrays...done.
This could cause an unbootable system in case of rootfs on a mirror and
a faulty mdadm.conf. This is not my situation, but this is why i filed
a critical bugreport.
I did a rebuild to get a backtrace w/ symbols:
export DEB_BUILD_OPTIONS=nostrip
apt-get source -b mdadm
dpkg -i mdadm_2.6.3+200709292116+4450e59-1_amd64.deb
-- Package-specific info:
--- mount output
/dev/ide/host0/bus0/target1/lun0/part3 on / type xfs (rw)
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)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
/dev/ide/host0/bus0/target1/lun0/part4 on /home type xfs (rw)
/dev/md/0 on /data type xfs (rw)
nfsd on /proc/fs/nfsd type nfsd (rw)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
/dev/scsi/host4/bus0/target0/lun0/part1 on /data/backup type xfs (rw)
rpc_pipefs on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
/dev/ide/host0/bus1/target1/lun0/cd on /media/Debian 4.0 r0 i386 Bin-1 type iso9660 (ro,nosuid,nodev,uid=1000)
--- mdadm.conf
DEVICE /dev/hdb1 /dev/hda1
ARRAY /dev/md0 devices=/dev/hdb1,/dev/hda1
MAILADDR root
--- /proc/mdstat:
Personalities : [raid1]
md0 : active raid1 hda1[0] hdb1[1]
195358336 blocks [2/2] [UU]
unused devices: <none>
--- /proc/partitions:
major minor #blocks name
3 0 199148544 hda
3 1 195358401 hda1
3 64 293057352 hdb
3 65 195358401 hdb1
3 66 1004062 hdb2
3 67 7823655 hdb3
3 68 40925587 hdb4
9 0 195358336 md0
8 0 488386584 sda
8 1 488384001 sda1
8 16 508928 sdb
--- initrd.img-2.6.22-2-amd64:
34991 blocks
etc/mdadm
etc/mdadm/mdadm.conf
lib/modules/2.6.22-2-amd64/kernel/drivers/md/md-mod.ko
lib/modules/2.6.22-2-amd64/kernel/drivers/md/linear.ko
lib/modules/2.6.22-2-amd64/kernel/drivers/md/multipath.ko
lib/modules/2.6.22-2-amd64/kernel/drivers/md/raid0.ko
lib/modules/2.6.22-2-amd64/kernel/drivers/md/raid1.ko
lib/modules/2.6.22-2-amd64/kernel/drivers/md/xor.ko
lib/modules/2.6.22-2-amd64/kernel/drivers/md/raid456.ko
lib/modules/2.6.22-2-amd64/kernel/drivers/md/raid10.ko
sbin/mdadm
scripts/local-top/mdadm
--- /proc/modules:
dm_snapshot 21320 0 - Live 0xffffffff883b5000
dm_mirror 26240 0 - Live 0xffffffff883ad000
dm_mod 64112 2 dm_snapshot,dm_mirror, Live 0xffffffff8839c000
raid1 27520 1 - Live 0xffffffff88105000
md_mod 83996 3 raid1, Live 0xffffffff880ef000
--- /var/log/syslog:
--- volume detail:
--- /proc/cmdline
BOOT_IMAGE=Linux ro root=343 console=tty0
--- grub:
kernel /boot/vmlinuz root=/dev/hdb3 ro
kernel /boot/vmlinuz root=/dev/hdb3 ro single
kernel /boot/vmlinuz.old root=/dev/hdb3 ro
kernel /boot/vmlinuz.old root=/dev/hdb3 ro single
kernel /boot/vmlinuz-2.6.20-1-amd64 root=/dev/hdb3 ro
kernel /boot/vmlinuz-2.6.20-1-amd64 root=/dev/hdb3 ro single
kernel /boot/vmlinuz-2.6.18-4-amd64 root=/dev/hdb3 ro
kernel /boot/vmlinuz-2.6.18-4-amd64 root=/dev/hdb3 ro single
--- lilo:
root=/dev/hdb3
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.22-2-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.utf8)
Shell: /bin/sh linked to /bin/bash
Versions of packages mdadm depends on:
ii debconf [debconf-2.0] 1.5.14 Debian configuration management sy
ii libc6 2.6.1-5 GNU C Library: Shared libraries
ii lsb-base 3.1-24 Linux Standard Base 3.1 init scrip
ii makedev 2.3.1-84 creates device files in /dev
ii udev 0.114-2 /dev/ and hotplug management daemo
Versions of packages mdadm recommends:
ii exim4-daemon-light [mail-tra 4.67-8 lightweight Exim MTA (v4) daemon
ii module-init-tools 3.3-pre11-4 tools for managing Linux kernel mo
-- debconf information:
* mdadm/initrdstart: all
mdadm/initrdstart_msg_errexist:
* mdadm/warning:
* mdadm/start_daemon: true
* mdadm/mail_to: root
mdadm/initrdstart_msg_errmd:
* mdadm/autocheck: true
* mdadm/autostart: true
mdadm/initrdstart_notinconf: false
mdadm/initrdstart_msg_intro:
mdadm/initrdstart_msg_errblock:
mdadm/initrdstart_msg_errconf:
-- Package-specific info:
--- mount output
/dev/ide/host0/bus0/target1/lun0/part3 on / type xfs (rw)
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)
fusectl on /sys/fs/fuse/connections type fusectl (rw)
/dev/ide/host0/bus0/target1/lun0/part4 on /home type xfs (rw)
/dev/md/0 on /data type xfs (rw)
nfsd on /proc/fs/nfsd type nfsd (rw)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
/dev/scsi/host4/bus0/target0/lun0/part1 on /data/backup type xfs (rw)
rpc_pipefs on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
/dev/ide/host0/bus1/target1/lun0/cd on /media/Debian 4.0 r0 i386 Bin-1 type iso9660 (ro,nosuid,nodev,uid=1000)
--- mdadm.conf
DEVICE /dev/hdb1 /dev/hda1
ARRAY /dev/md0 devices=/dev/hdb1,/dev/hda1
MAILADDR root
--- /proc/mdstat:
Personalities : [raid1]
md0 : active raid1 hda1[0] hdb1[1]
195358336 blocks [2/2] [UU]
unused devices: <none>
--- /proc/partitions:
major minor #blocks name
3 0 199148544 hda
3 1 195358401 hda1
3 64 293057352 hdb
3 65 195358401 hdb1
3 66 1004062 hdb2
3 67 7823655 hdb3
3 68 40925587 hdb4
9 0 195358336 md0
8 0 488386584 sda
8 1 488384001 sda1
8 16 508928 sdb
--- initrd.img-2.6.22-2-amd64:
34991 blocks
etc/mdadm
etc/mdadm/mdadm.conf
lib/modules/2.6.22-2-amd64/kernel/drivers/md/md-mod.ko
lib/modules/2.6.22-2-amd64/kernel/drivers/md/linear.ko
lib/modules/2.6.22-2-amd64/kernel/drivers/md/multipath.ko
lib/modules/2.6.22-2-amd64/kernel/drivers/md/raid0.ko
lib/modules/2.6.22-2-amd64/kernel/drivers/md/raid1.ko
lib/modules/2.6.22-2-amd64/kernel/drivers/md/xor.ko
lib/modules/2.6.22-2-amd64/kernel/drivers/md/raid456.ko
lib/modules/2.6.22-2-amd64/kernel/drivers/md/raid10.ko
sbin/mdadm
scripts/local-top/mdadm
--- /proc/modules:
dm_snapshot 21320 0 - Live 0xffffffff883b5000
dm_mirror 26240 0 - Live 0xffffffff883ad000
dm_mod 64112 2 dm_snapshot,dm_mirror, Live 0xffffffff8839c000
raid1 27520 1 - Live 0xffffffff88105000
md_mod 83996 3 raid1, Live 0xffffffff880ef000
--- /var/log/syslog:
--- volume detail:
--- /proc/cmdline
BOOT_IMAGE=Linux ro root=343 console=tty0
--- grub:
kernel /boot/vmlinuz root=/dev/hdb3 ro
kernel /boot/vmlinuz root=/dev/hdb3 ro single
kernel /boot/vmlinuz.old root=/dev/hdb3 ro
kernel /boot/vmlinuz.old root=/dev/hdb3 ro single
kernel /boot/vmlinuz-2.6.20-1-amd64 root=/dev/hdb3 ro
kernel /boot/vmlinuz-2.6.20-1-amd64 root=/dev/hdb3 ro single
kernel /boot/vmlinuz-2.6.18-4-amd64 root=/dev/hdb3 ro
kernel /boot/vmlinuz-2.6.18-4-amd64 root=/dev/hdb3 ro single
--- lilo:
root=/dev/hdb3
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.22-2-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8) (ignored: LC_ALL set to en_US.utf8)
Shell: /bin/sh linked to /bin/bash
Versions of packages mdadm depends on:
ii debconf [debconf-2.0] 1.5.14 Debian configuration management sy
ii libc6 2.6.1-5 GNU C Library: Shared libraries
ii lsb-base 3.1-24 Linux Standard Base 3.1 init scrip
ii makedev 2.3.1-84 creates device files in /dev
ii udev 0.114-2 /dev/ and hotplug management daemo
Versions of packages mdadm recommends:
ii exim4-daemon-light [mail-tra 4.67-8 lightweight Exim MTA (v4) daemon
ii module-init-tools 3.3-pre11-4 tools for managing Linux kernel mo
-- debconf information excluded
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