OK. I read this thread. I'm sure that somebody is sending SIGKILL to the systemd-udevd process who is doing finit_module() system call, after waiting for 30 seconds. However, since the probe function takes more than 30 seconds, the probe function already received SIGKILL by the moment scsi_host_alloc() calls kthread_run().
Therefore, reverting this commit will allow systemd-udevd process to ignore SIGKILL until leaving finit_module() system call, making kthread_run() to start successfully. I think you can find the process who is sending SIGKILL after waiting for 30 seconds, by inserting WARN_ON(). ** Patch added: "(Untested) patch to warn SIGKILL" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1276705/+attachment/4025040/+files/check-sigkill.diff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1276705 Title: Kernel 3.13 fail to boot with LSI SAS1068E (Dell SAS 6/iR) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1276705/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs