I've finally managed to catch the event storm in the act in a log. First, I built udev 138-1 with "--enable-debug". I had to apply a fix to the udev/Makefile.in and udev/lib/Makefile.in because both were failing to pass $(DEBUG_CFLAGS) to the compiler and linker.
With the package installed on the lab PC I booted it with serial console as before, but in addition I used the kernel command-line "break" parameter which causes the /init script to stop at the start of the init-premount stage (just before udev is started). I manually started udevd without --daemon mode and with debugging: /sbin/udev --debug --debug-trace & I then enabled kernel hotplug: echo "" /proc/sys/kernel/hotplug Then I triggered udev: /sbin/udevadm trigger The attached gzipped log was captured via the serial console with 'screen'. The log starts at kernel boot and includes the busybox commands. Search for "/sbin/udevd" to get to the start of the storm. I left it running for about 5 minutes before doing Ctrl+Alt+Del on the physical console keyboard. ** Attachment added: "Udev event storm during init-premount" http://launchpadlibrarian.net/22985514/boot-udev-storm.log.gz -- udev repeatedly generates "change" events for the same block device(s) https://bugs.launchpad.net/bugs/332270 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
