I've built the following commits and it can work so have no clue to do the bisect within this commits.
Mon May 26 18:51:24 gavin@gavin-w530:~/os/linux$ git log --pretty=oneline v3.11..v3.12-rc1 drivers/acpi/pci* a9238741987386bb549d61572973c7e62b2a4145 Merge tag 'pci-v3.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci e89c33168aad32436da842ddda307dcc31c0c4e2 Merge branch 'pci/misc' into next 3dc48af310709b85d07c8b0d3aa8f1ead02829d3 PCI/ACPI: Fix _OSC ordering to allow PCIe hotplug use when available 39772038ea93e85ea4f1307ec9c1f48a063d89a0 PCI: Assign resources for hot-added host bridge more aggressively 928bea964827d7824b548c1f8e06eccbbc4d0d7d PCI: Delay enabling bridges until they're needed be1c9de98d8904c75a5ab8b2a0d97bea0f7c07cc ACPI / PCI: Make bus registration and unregistration symmetric Now, I'm on the way of bisecting from v3.11 to v3.12-rc1. gavinguo@tangerine:~/os/linux$ git bisect log # bad: [272b98c6455f00884f0350f775c5342358ebb73f] Linux 3.12-rc1 # good: [6e4664525b1db28f8c4e1130957f70a94c19213e] Linux 3.11 # good: [39772038ea93e85ea4f1307ec9c1f48a063d89a0] PCI: Assign resources for hot-added host bridge more aggressively # good: [3dc48af310709b85d07c8b0d3aa8f1ead02829d3] PCI/ACPI: Fix _OSC ordering to allow PCIe hotplug use when available git bisect start 'v3.12-rc1' 'v3.11' '39772038ea93e85ea4f1307ec9c1f48a063d89a0' '3dc48af310709b85d07c8b0d3aa8f1ead02829d3' '--' # bad: [57d730924d5cc2c3e280af16a9306587c3a511db] Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip git bisect bad 57d730924d5cc2c3e280af16a9306587c3a511db # bad: [357397a14117f0c2eeafcac06a1f8412a02aa6af] Merge branch 'for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata git bisect bad 357397a14117f0c2eeafcac06a1f8412a02aa6af # good: [91121c103ae93ef117e58712786864270d7f488e] staging: dwc2: make dwc2_core_params documentation more complete git bisect good 91121c103ae93ef117e58712786864270d7f488e ** Changed in: linux-lts-saucy (Ubuntu) Status: New => In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1290189 Title: Unable to hotplug ExpressCard in 12.04.4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-saucy/+bug/1290189/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs