[Bug 139802] Re: long bootup, dmesg full of md: array md1 already has disks!
** Changed in: mdadm (Ubuntu) Status: New = Fix Released -- long bootup, dmesg full of md: array md1 already has disks! https://bugs.launchpad.net/bugs/139802 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 139802] Re: long bootup, dmesg full of md: array md1 already has disks!
I have a similar problem. I usually can't boot, and I get these floods of already has disks messages. I've found it goes away if I explicitly describe my array in mdadm.conf (listing the devices in the array) and rebuild the initramfs. I'm intrigued by this OOM. I get something that looks similar if I boot with mem=128M. I get several OOMs until the kernel runs out of processes to kill (init is last) and then panics. Maybe limiting the system to 128M just puts it under too much stress. But I wonder the loop which generates this message and consumes too much memory is inside the kernel. -- long bootup, dmesg full of md: array md1 already has disks! https://bugs.launchpad.net/bugs/139802 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 139802] Re: long bootup, dmesg full of md: array md1 already has disks!
Ah no, it is mdadm that's buggy. The array md1 already has disks! infinite loop is fixed in the latest upstream version (2.6.7). If you have git access, have a look at commit mdadm-2.6.6-1-g1c203a4. The log says it fixes autoassemble for stacked arrays, but it looks like this bug also affects non-stacked arrays in some circumstances. At least On Hardy Heron, Ubuntu doesn't patch mdadm at all. So one should be able to just install mdadm from source. Obviously one needs to take great care if you use MD for your root filesystem. There are also a worrying number of fix segfault commits. Personally I think I'll be much happer after manually upgrading mdadm to version 2.6.7. -- long bootup, dmesg full of md: array md1 already has disks! https://bugs.launchpad.net/bugs/139802 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 139802] Re: long bootup, dmesg full of md: array md1 already has disks!
I have this sort of bug too. https://bugs.launchpad.net/ubuntu/+bug/140854 wasn't useful, and I still get a lot of md: array md1 already has disks!. If you need I can paste the relevant, just tell me what you need. -- long bootup, dmesg full of md: array md1 already has disks! https://bugs.launchpad.net/bugs/139802 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 139802] Re: long bootup, dmesg full of md: array md1 already has disks!
I think I figured out why we both have this bug, please read https://bugs.launchpad.net/ubuntu/+bug/140854 -- long bootup, dmesg full of md: array md1 already has disks! https://bugs.launchpad.net/bugs/139802 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 139802] Re: long bootup, dmesg full of md: array md1 already has disks!
Followup: I restarted the server without reproducing this error. The array had successfully rebuilt, I don't know what would happen if the array had been degraded. There could be something here, but I can't reproduce it. -- long bootup, dmesg full of md: array md1 already has disks! https://bugs.launchpad.net/bugs/139802 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
