linux/arch/parisc
Helge Deller 6437b0b4dd Revert "parisc: Only list existing CPUs in cpu_possible_mask"
commit 82b143aeb1 upstream.

This reverts commit 0921244f6f.

It broke CPU hotplugging because it modifies the __cpu_possible_mask
after bootup, so that it will be different than nr_cpu_ids, which
then effictively breaks the workqueue setup code and triggers crashes
when shutting down CPUs at runtime.

Guenter was the first who noticed the wrong values in __cpu_possible_mask,
since the cpumask Kunit tests were failig.

Reverting this commit fixes both issues, but sadly brings back this
uncritical runtime warning:
register_cpu_capacity_sysctl: too early to get CPU4 device!

Signed-off-by: Helge Deller <deller@gmx.de>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lkml.org/lkml/2024/2/4/146
Link: https://lore.kernel.org/lkml/Zb0mbHlIud_bqftx@slm.duckdns.org/t/
Cc: stable@vger.kernel.org # 6.0+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2024-03-01 13:26:31 +01:00
..
boot Kbuild updates for v5.17 2022-01-19 11:15:19 +02:00
configs parisc: Update 32- and 64-bit defconfigs 2022-05-08 20:01:11 +02:00
include parisc: Fix random data corruption from exception handler 2024-02-23 09:12:50 +01:00
kernel Revert "parisc: Only list existing CPUs in cpu_possible_mask" 2024-03-01 13:26:31 +01:00
lib parisc: Drop homebrewn io[read|write]64_[lo_hi|hi_lo] 2022-09-23 21:52:27 +02:00
math-emu parisc: align '*' in comment in math-emu code 2022-06-26 00:19:27 +02:00
mm parisc: Fix random data corruption from exception handler 2024-02-23 09:12:50 +01:00
defpalo.conf parisc: switch to gzip-compressed vmlinuz kernel 2013-07-09 22:09:20 +02:00
install.sh kbuild: factor out the common installation code into scripts/install.sh 2022-05-11 21:45:53 +09:00
Kbuild kbuild: use more subdir- for visiting subdirectories while cleaning 2021-10-24 13:49:46 +09:00
Kconfig parisc: Fix random data corruption from exception handler 2024-02-23 09:12:50 +01:00
Kconfig.debug tracing: Refactor TRACE_IRQFLAGS_SUPPORT in Kconfig 2021-08-16 11:37:21 -04:00
Makefile kbuild: remove head-y syntax 2022-10-02 18:06:03 +09:00