mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-05 00:20:32 +00:00
Code Issues Releases Wiki Activity
No description
995135 commits 105 branches 5106 tags 5.6 GiB
C 97.6%
Assembly 1%
Shell 0.5%
Python 0.3%
Makefile 0.3%
Find a file
Sam Ravnborg 161f5a1189 sparc64: Fix number of online CPUs 
commit 98937707fe upstream.

Nick Bowler reported:
    When using newer kernels on my Ultra 60 with dual 450MHz UltraSPARC-II
    CPUs, I noticed that only CPU 0 comes up, while older kernels (including
    4.7) are working fine with both CPUs.

      I bisected the failure to this commit:

      9b2f753ec2 is the first bad commit
      commit 9b2f753ec2
      Author: Atish Patra <atish.patra@oracle.com>
      Date:   Thu Sep 15 14:54:40 2016 -0600

      sparc64: Fix cpu_possible_mask if nr_cpus is set

    This is a small change that reverts very easily on top of 5.18: there is
    just one trivial conflict.  Once reverted, both CPUs work again.

    Maybe this is related to the fact that the CPUs on this system are
    numbered CPU0 and CPU2 (there is no CPU1)?

The current code that adjust cpu_possible based on nr_cpu_ids do not
take into account that CPU's may not come one after each other.
Move the chech to the function that setup the cpu_possible mask
so there is no need to adjust it later.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Fixes: 9b2f753ec2 ("sparc64: Fix cpu_possible_mask if nr_cpus is set")
Reported-by: Nick Bowler <nbowler@draconx.ca>
Tested-by: Nick Bowler <nbowler@draconx.ca>
Link: https://lore.kernel.org/sparclinux/20201009161924.c8f031c079dd852941307870@gmx.de/
Link: https://lore.kernel.org/all/CADyTPEwt=ZNams+1bpMB1F9w_vUdPsGCt92DBQxxq_VtaLoTdw@mail.gmail.com/
Cc: stable@vger.kernel.org # v4.8+
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Atish Patra <atish.patra@oracle.com>
Cc: Bob Picco <bob.picco@oracle.com>
Cc: Vijay Kumar <vijay.ac.kumar@oracle.com>
Cc: David S. Miller <davem@davemloft.net>
Reviewed-by: Andreas Larsson <andreas@gaisler.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240330-sparc64-warnings-v1-9-37201023ee2f@ravnborg.org
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-06-16 13:32:35 +02:00
arch sparc64: Fix number of online CPUs 2024-06-16 13:32:35 +02:00
block blk-iocost: avoid out of bounds shift 2024-05-17 11:48:04 +02:00
certs
crypto crypto: ecrdsa - Fix module auto-load on add_key 2024-06-16 13:32:34 +02:00
Documentation fpga: region: add owner module and take its refcount 2024-06-16 13:32:19 +02:00
drivers intel_th: pci: Add Meteor Lake-S CPU support 2024-06-16 13:32:34 +02:00
fs f2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode() 2024-06-16 13:32:31 +02:00
include mmc: core: Add mmc_gpiod_set_cd_config() function 2024-06-16 13:32:33 +02:00
init init/main.c: Fix potential static_command_line memory overflow 2024-05-02 16:23:39 +02:00
io_uring io_uring: fail NOP if non-zero op flags is passed in 2024-06-16 13:32:30 +02:00
ipc
kernel genirq/cpuhotplug, x86/vector: Prevent vector leak during CPU offline 2024-06-16 13:32:30 +02:00
lib dyndbg: fix old BUG_ON in >control parser 2024-05-17 11:48:10 +02:00
LICENSES
mm x86/mm/pat: fix VM_PAT handling in COW mappings 2024-04-13 12:59:56 +02:00
net net/9p: fix uninit-value in p9_client_rpc() 2024-06-16 13:32:34 +02:00
samples samples/hw_breakpoint: fix building without module unloading 2023-09-23 11:01:09 +02:00
scripts kconfig: fix comparison to constant symbols, 'm', 'n' 2024-06-16 13:32:29 +02:00
security ima: fix deadlock when traversing "ima_default_rules". 2024-05-25 16:19:06 +02:00
sound ALSA: timer: Set lower bound of start tick time 2024-06-16 13:32:30 +02:00
tools bpf: Fix potential integer overflow in resolve_btfids 2024-06-16 13:32:28 +02:00
usr
virt KVM: Always flush async #PF workqueue when vCPU is being destroyed 2024-04-13 12:58:04 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.10.218 2024-05-25 16:19:07 +02:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.