WSL2-Linux-Kernel

The source for the Linux kernel used in Windows Subsystem for Linux 2 (WSL2)

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Yang Yingliang 6ad805b82d doc: fix documentation about UIO_MEM_LOGICAL using After commit `d4fc5069a3` ("mm: switch s_mem and slab_cache in struct page") page->mapping will be re-used by slab allocations and page->mapping->host will be used in balance_dirty_pages_ratelimited() as an inode member but it's not an inode in fact and leads an oops. [ 159.906493] Unable to handle kernel paging request at virtual address ffff200012d90be8 [ 159.908029] Mem abort info: [ 159.908552] ESR = 0x96000007 [ 159.909138] Exception class = DABT (current EL), IL = 32 bits [ 159.910155] SET = 0, FnV = 0 [ 159.910690] EA = 0, S1PTW = 0 [ 159.911241] Data abort info: [ 159.911846] ISV = 0, ISS = 0x00000007 [ 159.912567] CM = 0, WnR = 0 [ 159.913105] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000042acd000 [ 159.914269] [ffff200012d90be8] pgd=000000043ffff003, pud=000000043fffe003, pmd=000000043fffa003, pte=0000000000000000 [ 159.916280] Internal error: Oops: 96000007 [#1] SMP [ 159.917195] Dumping ftrace buffer: [ 159.917845] (ftrace buffer empty) [ 159.918521] Modules linked in: uio_dev(OE) [ 159.919276] CPU: 1 PID: 295 Comm: uio_test Tainted: G OE 5.2.0-rc4+ #46 [ 159.920859] Hardware name: linux,dummy-virt (DT) [ 159.921815] pstate: 60000005 (nZCv daif -PAN -UAO) [ 159.922809] pc : balance_dirty_pages_ratelimited+0x68/0xc38 [ 159.923965] lr : fault_dirty_shared_page.isra.8+0xe4/0x100 [ 159.925134] sp : ffff800368a77ae0 [ 159.925824] x29: ffff800368a77ae0 x28: 1ffff0006d14ce1a [ 159.926906] x27: ffff800368a670d0 x26: ffff800368a67120 [ 159.927985] x25: 1ffff0006d10f5fe x24: ffff200012d90be8 [ 159.929089] x23: ffff200013732000 x22: ffff80036ec03200 [ 159.930172] x21: ffff200012d90bc0 x20: 1fffe400025b217d [ 159.931253] x19: ffff80036ec03200 x18: 0000000000000000 [ 159.932348] x17: 0000000000000000 x16: 0ffffe0000010208 [ 159.933439] x15: 0000000000000000 x14: 0000000000000000 [ 159.934518] x13: 0000000000000000 x12: 0000000000000000 [ 159.935596] x11: 1fffefc001b452c0 x10: ffff0fc001b452c0 [ 159.936697] x9 : dfff200000000000 x8 : dfff200000000001 [ 159.937781] x7 : ffff7e000da29607 x6 : ffff0fc001b452c1 [ 159.938859] x5 : ffff0fc001b452c1 x4 : ffff0fc001b452c1 [ 159.939944] x3 : ffff200010523ad4 x2 : 1fffe400026e659b [ 159.941065] x1 : dfff200000000000 x0 : ffff200013732cd8 [ 159.942205] Call trace: [ 159.942732] balance_dirty_pages_ratelimited+0x68/0xc38 [ 159.943797] fault_dirty_shared_page.isra.8+0xe4/0x100 [ 159.944867] do_fault+0x608/0x1250 [ 159.945571] __handle_mm_fault+0x93c/0xfb8 [ 159.946412] handle_mm_fault+0x1c0/0x360 [ 159.947224] do_page_fault+0x358/0x8d0 [ 159.947993] do_translation_fault+0xf8/0x124 [ 159.948884] do_mem_abort+0x70/0x190 [ 159.949624] el0_da+0x24/0x28 According another commit `5e901d0b15` ("scsi: qedi: Fix bad pte call trace when iscsiuio is stopped."), using kmalloc also cause other problem. But the documentation about UIO_MEM_LOGICAL allows using kmalloc(), remove and don't allow using kmalloc() in documentation. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-06-19 19:31:21 +02:00
Documentation	doc: fix documentation about UIO_MEM_LOGICAL using	2019-06-19 19:31:21 +02:00
LICENSES	LICENSES: Rename other to deprecated	2019-05-03 06:34:32 -06:00
arch	s390 updates for 5.2-rc4	2019-06-08 13:12:54 -07:00
block	block, bfq: add weight symlink to the bfq.weight cgroup parameter	2019-06-07 01:29:40 -06:00
certs	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36	2019-05-24 17:27:11 +02:00
crypto	SPDX update for 5.2-rc4	2019-06-08 12:52:42 -07:00
drivers	thunderbolt: Fixes for v5.2-rc6	2019-06-19 19:02:52 +02:00
fs	A change to call iput() asynchronously to avoid a possible deadlock	2019-06-08 15:57:35 -07:00
include	SPDX update for 5.2-rc4	2019-06-08 12:52:42 -07:00
init	Char/Misc driver fixes for 5.2-rc4	2019-06-08 12:50:36 -07:00
ipc	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441	2019-06-05 17:37:17 +02:00
kernel	SPDX update for 5.2-rc4	2019-06-08 12:52:42 -07:00
lib	SPDX update for 5.2-rc4	2019-06-08 12:52:42 -07:00
mm	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441	2019-06-05 17:37:17 +02:00
net	SPDX update for 5.2-rc4	2019-06-08 12:52:42 -07:00
samples	SPDX update for 5.2-rc4	2019-06-08 12:52:42 -07:00
scripts	SPDX update for 5.2-rc4	2019-06-08 12:52:42 -07:00
security	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441	2019-06-05 17:37:17 +02:00
sound	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441	2019-06-05 17:37:17 +02:00
tools	SPDX update for 5.2-rc4	2019-06-08 12:52:42 -07:00
usr	user/Makefile: Fix typo and capitalization in comment section	2018-12-11 00:18:03 +09:00
virt	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333	2019-06-05 17:37:06 +02:00
.clang-format	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2019-04-17 11:26:25 -07:00
.cocciconfig	scripts: add Linux .cocciconfig for coccinelle	2016-07-22 12:13:39 +02:00
.get_maintainer.ignore	Opt out of scripts/get_maintainer.pl	2019-05-16 10:53:40 -07:00
.gitattributes	.gitattributes: set git diff driver for C source code files	2016-10-07 18:46:30 -07:00
.gitignore	.gitignore: exclude .get_maintainer.ignore and .gitattributes	2019-05-18 11:49:54 +09:00
.mailmap	A reasonably busy cycle for docs, including:	2019-05-08 12:42:50 -07:00
COPYING	COPYING: use the new text with points to the license files	2018-03-23 12:41:45 -06:00
CREDITS	MAINTAINERS: Farewell Martin Schwidefsky	2019-05-31 10:14:11 +02:00
Kbuild	Kbuild updates for v5.1	2019-03-10 17:48:21 -07:00
Kconfig	kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt	2018-08-02 08:06:55 +09:00
MAINTAINERS	MAINTAINERS / Documentation: Thorsten Scherer is the successor of Gavin Schenk	2019-06-19 19:31:21 +02:00
Makefile	Linux 5.2-rc4	2019-06-08 20:24:46 -07:00
README	Drop all 00-INDEX files from Documentation/	2018-09-09 15:08:58 -06:00

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.