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Filename Latest commit message Latest commit date
Peter Zijlstra 480c240ab6 x86: Increase exception stack sizes
[ Upstream commit 7fae4c24a2b84a66c7be399727aca11e7a888462 ]

It turns out that a single page of stack is trivial to overflow with
all the tracing gunk enabled. Raise the exception stacks to 2 pages,
which is still half the interrupt stacks, which are at 4 pages.

Reported-by: Michael Wang <yun.wang@linux.alibaba.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/YUIO9Ye98S5Eb68w@hirez.programming.kicks-ass.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-17 09:48:28 +01:00
arch x86: Increase exception stack sizes 2021-11-17 09:48:28 +01:00
block Revert "block, bfq: honor already-setup queue merges" 2021-10-06 15:42:34 +02:00
certs
crypto
Documentation xen/balloon: add late_initcall_sync() for initial ballooning done 2021-11-17 09:48:25 +01:00
drivers platform/x86: wmi: do not fail if disabling fails 2021-11-17 09:48:27 +01:00
fs quota: correct error number in free_dqentry() 2021-11-17 09:48:26 +01:00
include net: sched: update default qdisc visibility after Tx queue cnt changes 2021-11-17 09:48:28 +01:00
init
ipc
kernel locking/lockdep: Avoid RCU-induced noinstr fail 2021-11-17 09:48:28 +01:00
lib
LICENSES
mm mm, slub: fix potential memoryleak in kmem_cache_open() 2021-10-27 09:54:28 +02:00
net net: sched: update default qdisc visibility after Tx queue cnt changes 2021-11-17 09:48:28 +01:00
samples
scripts gcc-plugins/structleak: add makefile var for disabling structleak 2021-10-27 09:54:28 +02:00
security smackfs: Fix use-after-free in netlbl_catmap_walk() 2021-11-17 09:48:28 +01:00
sound ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume 2021-11-17 09:48:25 +01:00
tools perf script: Check session->header.env.arch before using it 2021-11-02 19:46:15 +01:00
usr
virt KVM: do not shrink halt_poll_ns below grow_start 2021-10-09 14:39:50 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.159 2021-11-12 14:43:05 +01:00
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.