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Filename Latest commit message Latest commit date
Anton Ivanov 5c2ffce1e9 um: Revert to using stack for pt_regs in signal handling 
Reverts commit b6024b21fe and
adjusts default stack sizing to cope with larger size of
floating point save registers on the newer Intel CPUs.

b6024b21fe replaced storing the
register state on the stack with kmalloc-ed storage. That has
a number of issues and a panic if that fails.
    1. kmalloc/ATOMIC can fail. There was a latent hard crash
in all interrupt and fault handling as a result.
    2. kmalloc in the interrupt path introduces a considerable
performance penalty for networking ~ 14% on iperf.

This commit restores uml to a stable state until a better
solution is found.

Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2019-05-07 23:18:28 +02:00
arch um: Revert to using stack for pt_regs in signal handling 2019-05-07 23:18:28 +02:00
block
certs
crypto crypto: lrw - Fix atomic sleep when walking skcipher 2019-04-18 22:13:46 +08:00
Documentation mm: do not boost watermarks to avoid fragmentation for the DISCONTIG memory model 2019-04-26 09:18:05 -07:00
drivers 5.1 Third RC pull request 2019-04-28 10:00:45 -07:00
fs for-linus-20190428 2019-04-28 10:06:32 -07:00
include 5.1 Third RC pull request 2019-04-28 10:00:45 -07:00
init init: initialize jump labels before command line option parsing 2019-04-19 09:46:05 -07:00
ipc
kernel Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-04-27 10:18:40 -07:00
lib lib/test_vmalloc.c: do not create cpumask_t variable on stack 2019-04-26 09:18:05 -07:00
LICENSES
mm mm/page_alloc.c: fix never set ALLOC_NOFRAGMENT flag 2019-04-26 09:18:05 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-04-24 16:18:59 -07:00
samples
scripts locking/atomics: Don't assume that scripts are executable 2019-04-19 14:21:43 +02:00
security Merge branch 'for-5.1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 2019-04-19 18:03:55 -07:00
sound ALSA: hda/realtek - add two more pin configuration sets to quirk table 2019-04-17 10:41:38 +02:00
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-04-24 16:18:59 -07:00
usr
virt KVM: fix spectrev1 gadgets 2019-04-16 15:38:07 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
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MAINTAINERS LED update for 5.1-rc7. 2019-04-24 16:15:38 -07:00
Makefile Linux 5.1-rc7 2019-04-28 17:04:13 -07:00
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.