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Filename Latest commit message Latest commit date
Johannes Berg 222722be70 iwlwifi: pcie: actually release queue memory in TVQM
commit b98b33d5560a2d940f3b80f6768a6177bf3dfbc0 upstream.

The iwl_trans_pcie_dyn_txq_free() function only releases the frames
that may be left on the queue by calling iwl_pcie_gen2_txq_unmap(),
but doesn't actually free the DMA ring or byte-count tables for the
queue. This leads to pretty large memory leaks (at least before my
queue size improvements), in particular in monitor/sniffer mode on
channel hopping since this happens on every channel change.

This was also now more evident after the move to a DMA pool for the
byte count tables, showing messages such as

  BUG iwlwifi:bc (...): Objects remaining in iwlwifi:bc on __kmem_cache_shutdown()

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=206811.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fixes: 6b35ff9157 ("iwlwifi: pcie: introduce a000 TX queues management")
Cc: stable@vger.kernel.org # v4.14+
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/iwlwifi.20200417100405.f5f4c4193ec1.Id5feebc9b4318041913a9c89fc1378bb5454292c@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-29 16:33:18 +02:00
arch KVM: VMX: Enable machine check support for 32bit targets 2020-04-29 16:33:17 +02:00
block block, bfq: invoke flush_idle_tree after reparent_active_queues in pd_offline 2020-04-23 10:36:26 +02:00
certs
crypto crypto: rng - Fix a refcounting bug in crypto_rng_reset() 2020-04-17 10:50:16 +02:00
Documentation USB: hub: Revert commit bd0e6c9614 ("usb: hub: try old enumeration scheme first for high speed devices") 2020-04-29 16:33:14 +02:00
drivers iwlwifi: pcie: actually release queue memory in TVQM 2020-04-29 16:33:18 +02:00
fs SUNRPC: Fix backchannel RPC soft lockups 2020-04-29 16:33:18 +02:00
include mac80211: populate debugfs only after cfg80211 init 2020-04-29 16:33:18 +02:00
init
ipc ipc/util.c: sysvipc_find_ipc() should increase position index 2020-04-29 16:33:00 +02:00
kernel audit: check the length of userspace generated audit records 2020-04-29 16:33:18 +02:00
lib lib/raid6/test: fix build on distros whose /bin/sh is not bash 2020-04-29 16:33:00 +02:00
LICENSES
mm mm/ksm: fix NULL pointer dereference when KSM zero page is enabled 2020-04-29 16:33:15 +02:00
net SUNRPC: Fix backchannel RPC soft lockups 2020-04-29 16:33:18 +02:00
samples vmalloc: fix remap_vmalloc_range() bounds checks 2020-04-29 16:33:14 +02:00
scripts kconfig: qconf: Fix a few alignment issues 2020-04-29 16:33:00 +02:00
security KEYS: Avoid false positive ENOMEM error on key read 2020-04-29 16:33:11 +02:00
sound ASoC: dapm: fixup dapm kcontrol widget 2020-04-29 16:33:18 +02:00
tools tools/vm: fix cross-compile build 2020-04-29 16:33:15 +02:00
usr initramfs: restore default compression behavior 2020-04-08 09:08:38 +02:00
virt KVM: Check for a bad hva before dropping into the ghc slow path 2020-03-05 16:43:48 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.35 2020-04-23 10:36:46 +02:00
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.