[PATCH] x86-64 updates
Lots of x86-64 updates. Merge with 2.4 and NUMA works now. Also reenabled the preemptive kernel. And some other bug fixes. IOMMU disabled by default now because it has problems. - Add more CONFIG options for device driver debugging and iommu force/debug. (don't enable iommu force currently) - Some S3/ACPI fixes/cleanups from Pavel. - Set MSG_COMPAT_* in msg_flags for networking 32bit emulation. This unfortunately still doesn't fix the fd passing problems. - Sync PCI IOMMU code with 2.4 (minor fixes, flush less often) - Really fix UP compilation (Pavel) - Reenable preempt - Fix CONFIG_DISCONTIGMEM bootup and enable. Still needs more tuning. - Fix some bugs in topology discovery and clean code up. - Don't put unwind tables into object files - Some kernel debugging hooks - Move CPU detection into early real mode code to better interact with vesafb consoles - Initialize mode in real mode character output - New 32bit FPU signal save/restore - Various fixes in FPU handling in ptrace - Fix security holes in ptrace (32bit and 64bit) - Fix serial ioctl (including security hole) - Add bluetooth ioctls to 32bit emu (from sparc64) - Correctly enable si_val in queued signals in 32bit emulation - Rework SEM_STAT emulation. LTP still fails unfortunately. - Fix error case in msg* emulation - Fix debug register access from ptrace (Michal Ludvig, me) - Fix handling of NULL arguments in 32bit execve - Fix some error cases for 32bit readv/writev (LTP still complains) - Remove rate control from unimplemented syscall warnings - Fix error message for missing aperture - Turn some APIC printks into Dprintk to make the bootup more quiet - Some fixes for no APIC (probably still broken), add disableapic option (untested) - Sync K8 MCE handler with 2.4. Should work a lot better now. - Remove never used KDB hooks - Fix buffer overflow in command line copying - Merge from i386: use separate status word for lazy FPU state - Don't force the IOMMU for dma masks < 4GB. - Print backtrace in Sysrq-T (from Andrea) - Merge from i386: fix FPU race in fork. - Disable NX mode by default for now - Rewrite dump_pagetable - Fix off by one bug in ioremap (i386 merge) - Merge from i386: handle VIA pci bridge bugs - Disable NUMA ACPI support (no SRAT support yet) - Fix aio 32bit emulation - Increase 32bit address space to nearly 4GB - Add exit_group syscall - Fix TLS setting in clone (Ulrich Drepper)
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