Ingo Molnar
50c668d678
Revert "cpumask: use work_on_cpu in acpi-cpufreq.c for drv_read and drv_write"
...
This reverts commit 7503bfbae8 .
Dieter Ries reported bootup soft-hangs and bisected it back to
this commit, and reverting this commit gave him a working system.
The commit introduces work_on_cpu() use into the cpufreq code,
but that is subtly problematic from a lock hierarchy POV: the
hotplug-cpu lock is an highlevel lock that is taken before
lowlevel locks, and in this codepath we are called with the
policy lock taken.
Dieter did not have lockdep enabled so we dont have a nice stack
trace proof for this, but using work_on_cpu() in such a lowlevel
place certainly looks wrong, so we revert the patch.
work_on_cpu() needs to be reworked to be more generally usable.
Reported-by: Dieter Ries <clip2@gmx.de>
Tested-by: Dieter Ries <clip2@gmx.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-12 19:24:23 +01:00
..
boot
Merge branches 'x86/apic', 'x86/cleanups', 'x86/cpufeature', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/detect-hyper', 'x86/doc', 'x86/dumpstack', 'x86/early-printk', 'x86/fpu', 'x86/idle', 'x86/io', 'x86/memory-corruption-check', 'x86/microcode', 'x86/mm', 'x86/mtrr', 'x86/nmi-watchdog', 'x86/pat2', 'x86/pci-ioapic-boot-irq-quirks', 'x86/ptrace', 'x86/quirks', 'x86/reboot', 'x86/setup-memory', 'x86/signal', 'x86/sparse-fixes', 'x86/time', 'x86/uv' and 'x86/xen' into x86/core
2008-12-23 16:27:23 +01:00
configs
x86: revert CONFIG_RELOCATABLE=y defconfig change
2008-12-18 20:57:29 +01:00
crypto
crypto: crc32c-intel - Switch to shash
2008-12-25 11:01:37 +11:00
ia32
x86: introducing asm/sys_ia32.h
2008-12-29 13:18:40 +01:00
include /asm
x86: fix apic.c build error on latest git
2009-01-12 19:24:23 +01:00
kernel
Revert "cpumask: use work_on_cpu in acpi-cpufreq.c for drv_read and drv_write"
2009-01-12 19:24:23 +01:00
kvm
KVM: change KVM to use IOMMU API
2009-01-03 14:11:07 +01:00
lguest
Merge branch 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-01-02 11:44:09 -08:00
lib
mach-default
x86: mach-default setup.c cleanups
2008-12-29 13:18:39 +01:00
mach-generic
x86: rename all fields of mpc_table mpc_X to X
2009-01-05 14:08:34 +01:00
mach-rdc321x
mach-voyager
x86: cleanup some remaining usages of NR_CPUS where s/b nr_cpu_ids
2009-01-03 19:00:55 +01:00
math-emu
mm
x86: avoid theoretical vmalloc fault loop
2009-01-12 19:24:21 +01:00
oprofile
Merge branch 'oprofile/ring_buffer' into oprofile/oprofile-for-tip
2009-01-08 14:27:34 +01:00
pci
x86/PCI: Do not use interrupt links for devices using MSI-X
2009-01-07 11:13:25 -08:00
power
scripts
allow stripping of generated symbols under CONFIG_KALLSYMS_ALL
2008-12-19 22:47:10 +01:00
vdso
Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
2008-12-28 12:33:21 -08:00
video
xen
Merge branch 'cputime' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
2009-01-03 11:56:24 -08:00
Kconfig
x86: offer frame pointers in all build modes
2009-01-07 11:18:59 +01:00
Kconfig.cpu
X86_DEBUGCTLMSR won't work on uml
2009-01-05 17:41:45 -08:00
Kconfig.debug
Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2008-12-28 12:21:10 -08:00
Makefile
Makefile_32.cpu