RAID 0 partition disappears after crash (9.04 Alpha 5)

[Paul Weiss]

I am using Ubuntu 9.04 Alpha 5 and dmraid with a RAID 0 partition. To begin, I tried to put my computer to sleep, but for some reason I could not resume. I rebooted but I failed to boot up Ubuntu. I got the error "no block devices found" four times, "ALERT! /dev/mapper/myraidpartition does not exist. Dropping to shell!", and then I was at the "(initramfs)" prompt. Typing "dmraid -ay" at the prompt gives me "***glibc detected*** dmraid: malloc(): memory corruption error: 0x00650908***".

[Giuseppe Iuculano (giuseppe-iuculano)]

Have you a jmicron controller?

[Paul Weiss (interweiss)]

I have a Gigabyte P35-DS3R motherboard. It has two RAID chipsets: jmicron and Intel. The jmicron chipset is turned off and I'm only using the Intel ICH9R chipset. I have never had any problems with RAID 0 in Ubuntu 8.10.

Just a note, I also had this memory corruption error when installing Ubuntu 9.04 Alpha 5 using the alternate CD where I was not able to use the created RAID partition. I then installed Ubuntu 8.10 using the alternate CD to clear any errors and then right away I installed Ubuntu 9.04 Alpha 5 with out any problems.

In the end it seems like the new version of dmraid has some sort of bug that is causing this problem.

[Giuseppe Iuculano (giuseppe-iuculano)]

Hi,

can you attach "dmraid -rD" output files (*.{dat,offset,size}) if possible in a bzip2/tarball please?

[Paul Weiss (interweiss)]

Too late I'm back to 8.10... I will maybe try the next Beta and if I get that error I will run "dmraid -rD".

[Paul Weiss (interweiss)]

I tried reproducing this RAID failure in Ubuntu 9.04 Beta 1 and the system rebooted perfectly.