Andreas Herrmann 903675569e x86: fix cpu-hotplug regression ... Commit d435d862ba ("cpu hotplug: mce: fix cpu hotplug error handling") changed the error handling in mce_cpu_callback. In cases where not all CPUs are brought up during boot (e.g. using maxcpus and additional_cpus parameters) mce_cpu_callback now returns NOTFIY_BAD because for such CPUs cpu_data is not completely filled when the notifier is called. Thus mce_create_device fails right at its beginning: if (!mce_available(&cpu_data[cpu])) return -EIO; As a quick fix I suggest to check boot_cpu_data for MCE. To reproduce this regression: (1) boot with maxcpus=2 addtional_cpus=2 on a 4 CPU x86-64 system (2) # echo 1 >/sys/devices/system/cpu/cpu2/online -bash: echo: write error: Invalid argument dmesg shows: _cpu_up: attempt to bring up CPU 2 failed Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2007-11-17 16:27:00 +01:00
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cpufreq	Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq	2007-11-16 18:30:26 -08:00
mcheck	x86: fix cpu-hotplug regression	2007-11-17 16:27:00 +01:00
mtrr	x86: make ipi_handler() always defined	2007-11-09 22:39:38 +01:00
addon_cpuid_features.c
amd.c	spelling fixes: arch/i386/	2007-10-20 01:13:56 +02:00
bugs.c
centaur.c	spelling fixes: arch/i386/	2007-10-20 01:13:56 +02:00
common.c	spelling fixes: arch/i386/	2007-10-20 01:13:56 +02:00
cpu.h
cyrix.c	spelling fixes: arch/i386/	2007-10-20 01:13:56 +02:00
intel_cacheinfo.c	x86: convert cpuinfo_x86 array to a per_cpu array	2007-10-19 20:35:04 +02:00
intel.c	i386: fix section mismatch warning in intel.c	2007-10-17 20:15:26 +02:00
Makefile	x86: prepare consolidation of cpu/ related Makefiles	2007-10-23 22:37:23 +02:00
nexgen.c
perfctr-watchdog.c	i386: do not BUG_ON() when MSR is unknown	2007-10-19 20:35:04 +02:00
proc.c	x86: additional CPUID strings; fix strings for AMD-ecx	2007-10-30 00:22:22 +01:00
transmeta.c
umc.c