55fb412ef7
debug_objects_mem_init() is invoked from mm_core_init() before work queues are available. If debug_objects_mem_init() destroys the kmem cache in the error path it causes an Oops in __queue_work(): Oops: Oops: 0000 [#1] PREEMPT SMP PTI RIP: 0010:__queue_work+0x35/0x6a0 queue_work_on+0x66/0x70 flush_all_cpus_locked+0xdf/0x1a0 __kmem_cache_shutdown+0x2f/0x340 kmem_cache_destroy+0x4e/0x150 mm_core_init+0x9e/0x120 start_kernel+0x298/0x800 x86_64_start_reservations+0x18/0x30 x86_64_start_kernel+0xc5/0xe0 common_startup_64+0x12c/0x138 Further the object cache pointer is used in various places to check for early boot operation. It is exposed before the replacments for the static boot time objects are allocated and the self test operates on it. This can be avoided by: 1) Running the self test with the static boot objects 2) Exposing it only after the replacement objects have been added to the pool. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241007164913.137021337@linutronix.de
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 reStructuredText 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.