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https://www.kernel.org/doc/html/latest/vm/slub.html
SLUB always includes full debugging but it is off by default. SLUB can enable debugging only for selected slabs in order to avoid an impact on overall system performance which may make a bug more difficult to find. In order to switch debugging on one can add an option slub_debug to the kernel command line. That will enable full debugging for ...
https://github.com/torvalds/linux/commit/3b7b314053d021601940c50b07f5f1423ae67e21
slub: make sysfs file removal asynchronous Commit bf5eb3d ("slub: separate out sysfs_slab_release() from sysfs_slab_remove()") made slub sysfs file removals synchronous to kmem_cache shutdown. Unfortunately, this created a possible ABBA deadlock between slab_mutex and sysfs draining mechanism triggering the following lockdep warning.
https://groups.google.com/d/topic/fa.linux.kernel/ePluApQ3PNE
Jan 11, 2011 · [ Bart, does this patch fix the problem for you? ] This patch fixes the following potential deadlock reported by Bart Van Assche: ===== [ INFO: possible circular locking dependency detected ]
https://en.wikipedia.org/wiki/Sysfs
sysfs is a pseudo file system provided by the Linux kernel that exports information about various kernel subsystems, hardware devices, and associated device drivers from the kernel's device model to user space through virtual files. In addition to providing information about various devices and kernel subsystems, exported virtual files are also used for their configuration.
https://unix.stackexchange.com/questions/4884/what-is-the-difference-between-procfs-and-sysfs
What is the difference between procfs and sysfs? proc is the old one, it is more or less without rules and structure. And at some point it was decided that proc was a little too chaotic and a new way was needed. Then sysfs was created, and the new stuff that was added was put into sysfs like device information.
https://en.wikipedia.org/wiki/SLUB_(software)
SLUB ("the unqueued slab allocator") is a memory management mechanism intended for the efficient memory allocation of kernel objects which displays the desirable property of eliminating fragmentation caused by allocations and deallocations. The technique is used to retain allocated memory that contains a data object of a certain type for reuse upon subsequent allocations of objects of the same ...
https://stackoverflow.com/questions/27806554/linux-drivers-and-sysfs
2 -> No I think most of the platform related drivers open sysfs interfaces. 3 -> Answer to above question in No . We still need ioctls . 4 -> I believe only the useful API's with some feature involved are exposed as sysfs entries. For example the device behind the driver has 100 registers. Each registers are not exposed as …
https://lkml.kernel.org/r/alpine.LRH.2.02.1806151817130.6333@file01.intranet.prod.int.rdu2.redhat.com
The slub subsystem offloads freeing the cache to a workqueue - and if we create the new cache before the workqueue runs, it complains because of duplicate filename in sysfs.
http://lkml.iu.edu/hypermail/linux/kernel/0803.1/1038.html
sysfs: could not mount ! mnt_init: sysfs_init_error: -22 This computer ran the whole series of 2.6 kernels so far, and I'm using the same configuration with 2.6.24.3 as with 2.6.23.17. It's a "vanilla" kernel with the exception of two patches: supermount (which is not even yet active when the panic occurs), and a patch to drivers/acpi/ec.c
https://stackoverflow.com/questions/tagged/sysfs
Active. Bountied. Unanswered. More ... One of Linux kernel training courses task is to add sysfs support to one of previously written device drivers. I choose ds1307 rtc driver and want to add device attributes, not driver ones. ... Newest sysfs questions feed To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Stack ...
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