On Fri, 2010-07-30 at 21:18 +0000, Aziz, Khalid wrote: > There were some discussions regarding this and this code was removed by > the time it was merged into mainline kernel. I can't remember the > details of why. I remember one report of kernel hang on kexec that > seemed to happen in device_shootdown(). I will look for any discussion > threads I can find. > These are the messages I could find discussing the code that disables PCI Master bit, before the code doing that was removed from ia64 tree: <https://lists.linux-foundation.org/pipermail/fastboot/2006-June/010175.html> <https://lists.linux-foundation.org/pipermail/fastboot/2006-June/010176.html> <https://lists.linux-foundation.org/pipermail/fastboot/2006-June/010178.html> <https://lists.linux-foundation.org/pipermail/fastboot/2006-June/010214.html> May be it is time to revisit this, for more than just ia64. -- Khalid ==================================================================== Khalid Aziz Telco Platform Software, ISB (970)898-9214 Hewlett-Packard khalid.aziz at hp.com Fort Collins, CO "The Linux kernel is subject to relentless development" - Alessandro Rubini
