Then the only possible actors left are the actual initramdisk contents e.g. zcat <initrd> | cpio -id and examine all the scripts (init, conf/modules) to determine how it could be loaded. The absence of the module reference in all of /etc and /usr/share/initramfs-tools/ tell me that whatever is loading that module is doing so as a side effect or an administration artifact e.g. someone wrote a udev rule and forgot.
Another possible source and this is also way out in left field is if modules.dep was compromised and scsi_sh_rdac was added as dependency of another module and thus loaded indirectly. root@nashira:/lib/modules/2.6.32-41-generic# grep scsi_dh modules* modules.builtin:kernel/drivers/scsi/device_handler/scsi_dh.ko modules.dep:kernel/drivers/scsi/device_handler/scsi_dh_rdac.ko: modules.dep:kernel/drivers/scsi/device_handler/scsi_dh_hp_sw.ko: modules.dep:kernel/drivers/scsi/device_handler/scsi_dh_emc.ko: modules.dep:kernel/drivers/scsi/device_handler/scsi_dh_alua.ko: Binary file modules.dep.bin matches modules.order:kernel/drivers/scsi/device_handler/scsi_dh_rdac.ko modules.order:kernel/drivers/scsi/device_handler/scsi_dh_hp_sw.ko modules.order:kernel/drivers/scsi/device_handler/scsi_dh_emc.ko modules.order:kernel/drivers/scsi/device_handler/scsi_dh_alua.ko root@nashira:/lib/modules/2.6.32-41-generic# vim modules.dep root@nashira:/lib/modules/2.6.32-41-generic# vim modules.builtin Fine here. concerning boot probe, scsi discovery is asymmetric, there's no expectation of order. Performance tuning is where I get off, I also don't know much about iSCSI transport, though yeah, jumbo frames it probably wise. If you're seeing those messages before the file system is mounted then the actors are definitely *in the ramdisk*, you just need to find them. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/1057054 Title: poor performance after upgrade to Precise To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/1057054/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
