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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Makefile	x86: consolidate the cpu/ related code usage	2007-10-23 22:37:23 +02:00
k7.c	i386: move kernel/cpu/mcheck	2007-10-11 11:16:25 +02:00
mce.h	i386: move kernel/cpu/mcheck	2007-10-11 11:16:25 +02:00
mce_32.c	x86: prepare consolidation of cpu/ related code usage	2007-10-23 22:37:23 +02:00
mce_64.c	x86: fix cpu-hotplug regression	2007-11-17 16:27:00 +01:00
mce_amd_64.c	x86: consolidate the cpu/ related code usage	2007-10-23 22:37:23 +02:00
mce_intel_64.c	x86: consolidate the cpu/ related code usage	2007-10-23 22:37:23 +02:00
non-fatal.c	i386: move kernel/cpu/mcheck	2007-10-11 11:16:25 +02:00
p4.c	x86: expand /proc/interrupts to include missing vectors, v2	2007-10-17 20:16:53 +02:00
p5.c	i386: move kernel/cpu/mcheck	2007-10-11 11:16:25 +02:00
p6.c	i386: move kernel/cpu/mcheck	2007-10-11 11:16:25 +02:00
therm_throt.c	cpu hotplug: thermal_throttle: fix cpu hotplug error handling	2007-10-18 14:37:21 -07:00
winchip.c	i386: move kernel/cpu/mcheck	2007-10-11 11:16:25 +02:00