No description
  • C 98.2%
  • Assembly 1%
  • Makefile 0.3%
  • Shell 0.2%
  • Python 0.1%
Find a file
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Takashi Iwai 2dbb618e24 ALSA: seq: Set upper limit of processed events
[ Upstream commit 6fadb494a638d8b8a55864ecc6ac58194f03f327 ]

Currently ALSA sequencer core tries to process the queued events as
much as possible when they become dispatchable.  If applications try
to queue too massive events to be processed at the very same timing,
the sequencer core would still try to process such all events, either
in the interrupt context or via some notifier; in either away, it
might be a cause of RCU stall or such problems.

As a potential workaround for those problems, this patch adds the
upper limit of the amount of events to be processed.  The remaining
events are processed in the next batch, so they won't be lost.

For the time being, it's limited up to 1000 events per queue, which
should be high enough for any normal usages.

Reported-by: Zqiang <qiang.zhang1211@gmail.com>
Reported-by: syzbot+bb950e68b400ab4f65f8@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20211102033222.3849-1-qiang.zhang1211@gmail.com
Link: https://lore.kernel.org/r/20211207165146.2888-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27 09:19:48 +01:00
arch KVM: PPC: Book3S: Suppress failed alloc warning in H_COPY_TOFROM_GUEST 2022-01-27 09:19:48 +01:00
block
certs
crypto
Documentation
drivers scsi: lpfc: Trigger SLI4 firmware dump before doing driver cleanup 2022-01-27 09:19:48 +01:00
fs btrfs: remove BUG_ON(!eie) in find_parent_nodes 2022-01-27 09:19:45 +01:00
include ACPICA: actypes.h: Expand the ACPI_ACCESS_ definitions 2022-01-27 09:19:45 +01:00
init
ipc
kernel audit: ensure userspace is penalized the same as the kernel when under pressure 2022-01-27 09:19:44 +01:00
lib
LICENSES
mm
net mac80211: allow non-standard VHT MCS-10/11 2022-01-27 09:19:46 +01:00
samples
scripts
security
sound ALSA: seq: Set upper limit of processed events 2022-01-27 09:19:48 +01:00
tools bpftool: Enable line buffering for stdout 2022-01-27 09:19:35 +01:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile
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.