| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>
Conflicts:
Makefile
firmware/Makefile
firmware/epen/W9001_B713.bin.ihex
firmware/epen/W9001_B746.bin.ihex
firmware/epen/W9001_B746JD.bin.ihex
firmware/epen/W9001_B746L.bin.ihex
firmware/epen/W9001_B746S.bin.ihex
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Change-Id: I9ca02d8460a92d6664072253f4204d61f01df49b
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https://github.com/CyanogenMod/android_kernel_samsung_smdk4210/blob/cm-10.1/drivers/media/video/samsung/mali/platform/orion-m400/mali_platform_dvfs.c#L77
Change-Id: I07c4dbd99d5adce880616162674f6ef2e4ece4fd
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Revert "cpufreq: pegasusq: allow keeping at least two cores awake", and
revert "i9300: we have bluetooth deadlocks"
This reverts commits 73bb47e7f14bb1d88b70cc46e532b2ec71d66049 and
008e15d4745c3a359ee01ed76529dee2366bac10.
Change-Id: I6ecc5fc2bec9a68d80c9c3cf8d23d4ec448e1c73
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fixes a2dp issues
original commit:
https://github.com/ArchiDroid/ArchiKernel/commit/1f5b6449dfddee4bf1528f85d97e250e1431dcd5
Change-Id: If7d5ec882a10d033d71be6c3a310917bf0df9b80
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This reverts commit e030f5a0b6445d2f2526abe16e233def99de97bb.
Change-Id: I9ba7cb2baefd8435d5e74aeaca188fc1cdfdab2c
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fixes no notifications on ip6 networks
Change-Id: Ic2b93d67eba92be90a9b403f27d5a0ab97446cf9
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Change-Id: I0b38869c9f0d5c8695e543b0fc363aff7c9e617a
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Change-Id: Id6ba06121202e1e4cc5a7f2f53a278518afb977c
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Change-Id: Id55306a358bc782f753a8a756a3cbb1665b5146f
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Bug: 22833116
Change-Id: I775a18f61bd2f4df2bec23d01bd49421d0969f87
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
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cputime_t is u64. Use %llu instead of %u.
Bug: 22461683
Change-Id: Ia9a343a826e62cc73d2f61caf15651aee0233e9a
Signed-off-by: Jin Qian <jinqian@google.com>
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This avoids the race where a particular process is terminating and we
read the show_uid_stats. At this time since the task_struct still exists
and we will account for the terminating process as one of the active
task, where as the stats would have been added in the task exit
callback.
Bug: 22064385
Change-Id: Id2ae04b33fcd230eda9683a41b6019d4dd8f5d85
Signed-off-by: Jin Qian <jinqian@google.com>
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
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/proc/uid_cputime/show_uid_stats shows a third field power for each of
the uids. It represents the power in the units (uAusec)
Bug: 21498425
Change-Id: I52fdc5e59647e9dc97561a26d56f462a2689ba9c
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
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Change-Id: I0fb7ff1864f16c573cf09acd2c773369e8c9ced7
Signed-off-by: Jin Qian <jinqian@google.com>
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In order to keep the code consistent with all other platforms, the
thread notifier is changed to profile event notifier.
Change-Id: I5b996c789927b42dacba10af6fe81a21866e2c8f
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Adds proc files /proc/uid_cputime/show_uid_stat and
/proc/uid_cputime/remove_uid_range.
show_uid_stat lists the total utime and stime for the active as well as
terminated processes for each of the uids.
Writing a range of uids to remove_uid_range will delete the accounting
for all the uids within that range.
Change-Id: I21d9210379da730b33ddc1a0ea663c8c9d2ac15b
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Change-Id: I08d1c6f8920de63ab7cd10ff36c34032c7240f84
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Conflicts:
crypto/algapi.c
drivers/gpu/drm/i915/i915_debugfs.c
drivers/gpu/drm/i915/intel_display.c
drivers/video/fbmem.c
include/linux/nls.h
kernel/cgroup.c
kernel/signal.c
kernel/timeconst.pl
net/ipv4/ping.c
Change-Id: I1f532925d1743df74d66bcdd6fc92f05c72ee0dd
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commit 50b8f5aec04ebec7dbdf2adb17220b9148c99e63 upstream.
They have 4 rather than 8.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=63599
Signed-off-by: wojciech kapuscinski <wojtask9@wp.pl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8612ed0d97abcf1c016d34755b7cf2060de71963 upstream.
Calling the WDIOC_GETSTATUS & WDIOC_GETBOOTSTATUS and twice will cause a
interruptible deadlock.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: Jonghwan Choi <jhbird.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 47d06e532e95b71c0db3839ebdef3fe8812fca2c upstream.
The some platforms (e.g., ARM) initializes their clocks as
late_initcalls for some unknown reason. So make sure
random_int_secret_init() is run after all of the late_initcalls are
run.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit bcc2c9c3fff859e0eb019fe6fec26f9b8eba795c upstream.
The SuSE security team suggested to use recvfrom instead of recv to be
certain that the connector message is originated from kernel.
CVE-2012-2669
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Marcus Meissner <meissner@suse.de>
Signed-off-by: Sebastian Krahmer <krahmer@suse.de>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
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commit 715230a44310a8cf66fbfb5a46f9a62a9b2de424 upstream.
Commit 184b89044fb6e2a74611dafa69b1dce0d98612c6 ("tg3: Use VPD fw version
when present") introduced VPD parsing that contained a potential length
overflow.
Limit the hardware's reported firmware string length (max 255 bytes) to
stay inside the driver's firmware string length (32 bytes). On overflow,
truncate the formatted firmware string instead of potentially overwriting
portions of the tg3 struct.
http://cansecwest.com/slides/2013/PrivateCore%20CSW%202013.pdf
-js: This fixes CVE-2013-1929.
Signed-off-by: Kees Cook <keescook@chromium.org>
Reported-by: Oded Horovitz <oded@privatecore.com>
Reported-by: Brad Spengler <spender@grsecurity.net>
Cc: stable@vger.kernel.org
Cc: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 06a8566bcf5cf7db9843a82cde7a33c7bf3947d9 upstream.
This patch fixes the issues indicated by the test results that
ipmi_msg_handler() is invoked in atomic context.
BUG: scheduling while atomic: kipmi0/18933/0x10000100
Modules linked in: ipmi_si acpi_ipmi ...
CPU: 3 PID: 18933 Comm: kipmi0 Tainted: G AW 3.10.0-rc7+ #2
Hardware name: QCI QSSC-S4R/QSSC-S4R, BIOS QSSC-S4R.QCI.01.00.0027.070120100606 07/01/2010
ffff8838245eea00 ffff88103fc63c98 ffffffff814c4a1e ffff88103fc63ca8
ffffffff814bfbab ffff88103fc63d28 ffffffff814c73e0 ffff88103933cbd4
0000000000000096 ffff88103fc63ce8 ffff88102f618000 ffff881035c01fd8
Call Trace:
<IRQ> [<ffffffff814c4a1e>] dump_stack+0x19/0x1b
[<ffffffff814bfbab>] __schedule_bug+0x46/0x54
[<ffffffff814c73e0>] __schedule+0x83/0x59c
[<ffffffff81058853>] __cond_resched+0x22/0x2d
[<ffffffff814c794b>] _cond_resched+0x14/0x1d
[<ffffffff814c6d82>] mutex_lock+0x11/0x32
[<ffffffff8101e1e9>] ? __default_send_IPI_dest_field.constprop.0+0x53/0x58
[<ffffffffa09e3f9c>] ipmi_msg_handler+0x23/0x166 [ipmi_si]
[<ffffffff812bf6e4>] deliver_response+0x55/0x5a
[<ffffffff812c0fd4>] handle_new_recv_msgs+0xb67/0xc65
[<ffffffff81007ad1>] ? read_tsc+0x9/0x19
[<ffffffff814c8620>] ? _raw_spin_lock_irq+0xa/0xc
[<ffffffffa09e1128>] ipmi_thread+0x5c/0x146 [ipmi_si]
...
Also Tony Camuso says:
We were getting occasional "Scheduling while atomic" call traces
during boot on some systems. Problem was first seen on a Cisco C210
but we were able to reproduce it on a Cisco c220m3. Setting
CONFIG_LOCKDEP and LOCKDEP_SUPPORT to 'y' exposed a lockdep around
tx_msg_lock in acpi_ipmi.c struct acpi_ipmi_device.
=================================
[ INFO: inconsistent lock state ]
2.6.32-415.el6.x86_64-debug-splck #1
---------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
ksoftirqd/3/17 [HC0[0]:SC1[1]:HE1:SE0] takes:
(&ipmi_device->tx_msg_lock){+.?...}, at: [<ffffffff81337a27>] ipmi_msg_handler+0x71/0x126
{SOFTIRQ-ON-W} state was registered at:
[<ffffffff810ba11c>] __lock_acquire+0x63c/0x1570
[<ffffffff810bb0f4>] lock_acquire+0xa4/0x120
[<ffffffff815581cc>] __mutex_lock_common+0x4c/0x400
[<ffffffff815586ea>] mutex_lock_nested+0x4a/0x60
[<ffffffff8133789d>] acpi_ipmi_space_handler+0x11b/0x234
[<ffffffff81321c62>] acpi_ev_address_space_dispatch+0x170/0x1be
The fix implemented by this change has been tested by Tony:
Tested the patch in a boot loop with lockdep debug enabled and never
saw the problem in over 400 reboots.
Reported-and-tested-by: Tony Camuso <tcamuso@redhat.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Jonghwan Choi <jhbird.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 677a31565692d596ef42ea589b53ba289abf4713 upstream.
The `insn_bits` handler `ni_65xx_dio_insn_bits()` has a `for` loop that
currently writes (optionally) and reads back up to 5 "ports" consisting
of 8 channels each. It reads up to 32 1-bit channels but can only read
and write a whole port at once - it needs to handle up to 5 ports as the
first channel it reads might not be aligned on a port boundary. It
breaks out of the loop early if the next port it handles is beyond the
final port on the card. It also breaks out early on the 5th port in the
loop if the first channel was aligned. Unfortunately, it doesn't check
that the current port it is dealing with belongs to the comedi subdevice
the `insn_bits` handler is acting on. That's a bug.
Redo the `for` loop to terminate after the final port belonging to the
subdevice, changing the loop variable in the process to simplify things
a bit. The `for` loop could now try and handle more than 5 ports if the
subdevice has more than 40 channels, but the test `if (bitshift >= 32)`
ensures it will break out early after 4 or 5 ports (depending on whether
the first channel is aligned on a port boundary). (`bitshift` will be
between -7 and 7 inclusive on the first iteration, increasing by 8 for
each subsequent operation.)
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 1e43692cdb7cc445d6347d8a5207d9cef0c71434 upstream.
Added USB ID for Corega WLUSB2GTST USB adapter.
Reported-by: Joerg Kalisch <the_force@gmx.de>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 60ce314d1750fef843e9db70050e09e49f838b69 upstream.
The private array at the end of the rtl_priv struct is not aligned.
On ARM architecture, this causes an alignment trap and is fixed by aligning
that array with __align(sizeof(void *)). That should properly align that
space according to the requirements of all architectures.
Reported-by: Jason Andrews <jasona@cadence.com>
Tested-by: Jason Andrews <jasona@cadence.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit eb2addd4044b4b2ce77693bde5bc810536dd96ee upstream.
Hi,
my Huawei 3G modem has an embedded Smart Card reader which causes
trouble when the modem is being detected (a bunch of "<warn> (ttyUSBx):
open blocked by driver for more than 7 seconds!" in messages.log). This
trivial patch corrects the problem for me. The modem identifies itself
as "12d1:1406 Huawei Technologies Co., Ltd. E1750" in lsusb although the
description on the body says "Model E173u-1"
Signed-off-by: Michal Malý <madcatxster@prifuk.cz>
Cc: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 21af8107f27878813d0364733c0b08813c2c192a ]
Meelis Roos reports a crash in esp_free_lun_tag() in the presense
of a disk which has died.
The issue is that when we issue an autosense command, we do so by
hijacking the original command that caused the check-condition.
When we do so we clear out the ent->tag[] array when we issue it via
find_and_prep_issuable_command(). This is so that the autosense
command is forced to be issued non-tagged.
That is problematic, because it is the value of ent->tag[] which
determines whether we issued the original scsi command as tagged
vs. non-tagged (see esp_alloc_lun_tag()).
And that, in turn, is what trips up the sanity checks in
esp_free_lun_tag(). That function needs the original ->tag[] values
in order to free up the tag slot properly.
Fix this by remembering the original command's tag values, and
having esp_alloc_lun_tag() and esp_free_lun_tag() use them.
Reported-by: Meelis Roos <mroos@linux.ee>
Tested-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 7167cf0e8cd10287b7912b9ffcccd9616f382922 ]
The dma descriptors indexes are only initialized on the probe function.
If a packet is on the buffer when temac_stop is called, the dma
descriptors indexes can be left on a incorrect state where no other
package can be sent.
So an interface could be left in an usable state after ifdow/ifup.
This patch makes sure that the descriptors indexes are in a proper
status when the device is open.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 5a0068deb611109c5ba77358be533f763f395ee4 ]
Recently grabbed this report:
https://bugzilla.redhat.com/show_bug.cgi?id=1005567
Of an issue in which the bonding driver, with an attached vlan encountered the
following errors when bond0 was taken down and back up:
dummy1: promiscuity touches roof, set promiscuity failed. promiscuity feature of
device might be broken.
The error occurs because, during __bond_release_one, if we release our last
slave, we take on a random mac address and issue a NETDEV_CHANGEADDR
notification. With an attached vlan, the vlan may see that the vlan and bond
mac address were in sync, but no longer are. This triggers a call to dev_uc_add
and dev_set_rx_mode, which enables IFF_PROMISC on the bond device. Then, when
we complete __bond_release_one, we use the current state of the bond flags to
determine if we should decrement the promiscuity of the releasing slave. But
since the bond changed promiscuity state during the release operation, we
incorrectly decrement the slave promisc count when it wasn't in promiscuous mode
to begin with, causing the above error
Fix is pretty simple, just cache the bonding flags at the start of the function
and use those when determining the need to set promiscuity.
This is also needed for the ALLMULTI flag
Reported-by: Mark Wu <wudxw@linux.vnet.ibm.com>
CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Mark Wu <wudxw@linux.vnet.ibm.com>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit bf0ea6380724beb64f27a722dfc4b0edabff816e ]
Pass-all-multicast is controlled by bit 3 in RX control, not bit 2
(pass undersized frames).
Reported-by: Joseph Chang <joseph_chang@davicom.com.tw>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 207070f5221e2a901d56a49df9cde47d9b716cd7 ]
Outgoing packets sent by via-rhine have their VLAN PCP field off by one
(when hardware acceleration is enabled). The TX descriptor expects only VID
and PCP (without a CFI/DEI bit).
Peter Boström noticed and reported the bug.
Signed-off-by: Roger Luethi <rl@hellgate.ch>
Cc: Peter Boström <peter.bostrom@netrounds.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 703133de331a7a7df47f31fb9de51dc6f68a9de8 ]
If local fragmentation is allowed, then ip_select_ident() and
ip_select_ident_more() need to generate unique IDs to ensure
correct defragmentation on the peer.
For example, if IPsec (tunnel mode) has to encrypt large skbs
that have local_df bit set, then all IP fragments that belonged
to different ESP datagrams would have used the same identificator.
If one of these IP fragments would get lost or reordered, then
peer could possibly stitch together wrong IP fragments that did
not belong to the same datagram. This would lead to a packet loss
or data corruption.
Signed-off-by: Ansis Atteka <aatteka@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 58f09e00ae095e46ef9edfcf3a5fd9ccdfad065e upstream.
The arg64 struct has a hole after ->buf_size which isn't cleared. Or if
any of the calls to copy_from_user() fail then that would cause an
information leak as well.
This was assigned CVE-2013-2147.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 627aad1c01da6f881e7f98d71fd928ca0c316b1a upstream.
The pciinfo struct has a two byte hole after ->dev_fn so stack
information could be leaked to the user.
This was assigned CVE-2013-2147.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 3269ee0bd6686baf86630300d528500ac5b516d7 upstream.
At best the current code only seems to free the leaf pagetables and
the root. If you're unlucky enough to have a large gap (like any
QEMU guest with more than 3G of memory), only the first chunk of leaf
pagetables are freed (plus the root). This is a massive memory leak.
This patch re-writes the pagetable freeing function to use a
recursive algorithm and manages to not only free all the pagetables,
but does it without any apparent performance loss versus the current
broken version.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Cc: stable@vger.kernel.org
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 0fc86eca1b338d06ec500b34ef7def79c32b602b upstream.
Some error paths do not set a result, leading to the (false)
assumption that the value may be used uninitialized. Set results for
those paths as well.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 5f4513864304672e6ea9eac60583eeac32e679f2 upstream.
After reports from Chris and Josh Boyer of a rare crash in applesmc,
Guenter pointed at the initialization problem fixed below. The patch
has not been verified to fix the crash, but should be applied
regardless.
Reported-by: <jwboyer@fedoraproject.org>
Suggested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8d16f258217f2f583af1fd57c5144aa4bbe73e48 upstream.
There is no clear cut rules or specs for the retry interval, as there
are many factors that affect overall response time. Increase the
interval, and even more so on branch devices which may have limited i2c
bit rates.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reference: https://bugs.freedesktop.org/show_bug.cgi?id=60263
Tested-by: Nicolas Suzor <nic@suzor.com>
Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 60e356f381954d79088d0455e357db48cfdd6857 upstream.
LVM2, since version 2.02.96, creates origin with zero size, then loads
the snapshot driver and then loads the origin. Consequently, the
snapshot driver sees the origin size zero and sets the hash size to the
lower bound 64. Such small hash table causes performance degradation.
This patch changes it so that the hash size is determined by the size of
snapshot volume, not minimum of origin and snapshot size. It doesn't
make sense to set the snapshot size significantly larger than the origin
size, so we do not need to take origin size into account when
calculating the hash size.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 5ea330a75bd86b2b2a01d7b85c516983238306fb upstream.
The kernel reports a lockdep warning if a snapshot is invalidated because
it runs out of space.
The lockdep warning was triggered by commit 0976dfc1d0cd80a4e9dfaf87bd87
("workqueue: Catch more locking problems with flush_work()") in v3.5.
The warning is false positive. The real cause for the warning is that
the lockdep engine treats different instances of md->lock as a single
lock.
This patch is a workaround - we use flush_workqueue instead of flush_work.
This code path is not performance sensitive (it is called only on
initialization or invalidation), thus it doesn't matter that we flush the
whole workqueue.
The real fix for the problem would be to teach the lockdep engine to treat
different instances of md->lock as separate locks.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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direction bit
commit 831abf76643555a99b80a3b54adfa7e4fa0a3259 upstream.
Trying to read data from the Pegasus Technologies NoteTaker (0e20:0101)
[1] with the Windows App (EasyNote) works natively but fails when
Windows is running under KVM (and the USB device handed to KVM).
The reason is a USB control message
usb 4-2.2: control urb: bRequestType=22 bRequest=09 wValue=0200 wIndex=0001 wLength=0008
This goes to endpoint address 0x01 (wIndex); however, endpoint address
0x01 does not exist. There is an endpoint 0x81 though (same number,
but other direction); the app may have meant that endpoint instead.
The kernel thus rejects the IO and thus we see the failure.
Apparently, Linux is more strict here than Windows ... we can't change
the Win app easily, so that's a problem.
It seems that the Win app/driver is buggy here and the driver does not
behave fully according to the USB HID class spec that it claims to
belong to. The device seems to happily deal with that though (and
seems to not really care about this value much).
So the question is whether the Linux kernel should filter here.
Rejecting has the risk that somewhat non-compliant userspace apps/
drivers (most likely in a virtual machine) are prevented from working.
Not rejecting has the risk of confusing an overly sensitive device with
such a transfer. Given the fact that Windows does not filter it makes
this risk rather small though.
The patch makes the kernel more tolerant: If the endpoint address in
wIndex does not exist, but an endpoint with toggled direction bit does,
it will let the transfer through. (It does NOT change the message.)
With attached patch, the app in Windows in KVM works.
usb 4-2.2: check_ctrlrecip: process 13073 (qemu-kvm) requesting ep 01 but needs 81
I suspect this will mostly affect apps in virtual environments; as on
Linux the apps would have been adapted to the stricter handling of the
kernel. I have done that for mine[2].
[1] http://www.pegatech.com/
[2] https://sourceforge.net/projects/notetakerpen/
Signed-off-by: Kurt Garloff <kurt@garloff.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 526867c3ca0caa2e3e846cb993b0f961c33c2abb upstream.
The halted state of a endpoint cannot be cleared over CLEAR_HALT from a
user process, because the stopped_td variable was overwritten in the
handle_stopped_endpoint() function. So the xhci_endpoint_reset() function will
refuse the reset and communication with device can not run over this endpoint.
https://bugzilla.kernel.org/show_bug.cgi?id=60699
Signed-off-by: Florian Wolter <wolly84@web.de>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Jonghwan Choi <jhbird.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 284d20552461466b04d6bfeafeb1c47a8891b591 upstream.
When a command times out, the command ring is first aborted,
and then stopped. If the command ring is empty when it is stopped
the stop event will point to next command which is not yet set.
xHCI tries to handle this next event often causing an oops.
Don't handle command completion events on stopped cmd ring if ring is
empty.
This patch should be backported to kernels as old as 3.7, that contain
the commit b92cc66c047ff7cf587b318fe377061a353c120f "xHCI: add aborting
command ring function"
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Reported-by: Giovanni <giovanni.nervi@yahoo.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit e3eb270fab7734427dd8171a93e4946fe28674bc upstream.
The vt6656 is prone to resetting on the usb bus.
It seems there is a race condition and wpa supplicant is
trying to open the device via iw_handlers before its actually
closed at a stage that the buffers are being removed.
The device is longer considered open when the
buffers are being removed. So move ~DEVICE_FLAGS_OPENED
flag to before freeing the device buffers.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This bug fix is only for stable branches older than 3.10. The bug was
fixed upstream by commit 2768935a4660 ('sfc: reuse pages to avoid DMA
mapping/unmapping costs'), but that change is totally unsuitable for
stable.
Commit b590ace09d51 ('sfc: Fix efx_rx_buf_offset() in the presence of
swiotlb') added an explicit page_offset member to struct
efx_rx_buffer, which must be set consistently with the u.page and
dma_addr fields. However, it failed to add the necessary assignment
in efx_resurrect_rx_buffer(). It also did not correct the calculation
of efx_rx_buffer::dma_addr in efx_resurrect_rx_buffer(), which assumes
that DMA-mapping a page will result in a page-aligned DMA address
(exactly what swiotlb violates).
Add the assignment of efx_rx_buffer::page_offset and change the
calculation of dma_addr to make use of it.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 46a7c17d26967922092f3a8291815ffb20f6cabe upstream.
iscsi_if_send_reply() may return -ESRCH if there were no targets to send
data to. Currently we're ignoring this value and looping in attempt to do it
over and over, which will usually lead in a hung task like this one:
[ 4920.817298] INFO: task trinity:9074 blocked for more than 120 seconds.
[ 4920.818527] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 4920.819982] trinity D 0000000000000000 5504 9074 2756 0x00000004
[ 4920.825374] ffff880003961a98 0000000000000086 ffff8800001aa000 ffff8800001aa000
[ 4920.826791] 00000000001d4340 ffff880003961fd8 ffff880003960000 00000000001d4340
[ 4920.828241] 00000000001d4340 00000000001d4340 ffff880003961fd8 00000000001d4340
[ 4920.833231]
[ 4920.833519] Call Trace:
[ 4920.834010] [<ffffffff826363fa>] schedule+0x3a/0x50
[ 4920.834953] [<ffffffff82634ac9>] __mutex_lock_common+0x209/0x5b0
[ 4920.836226] [<ffffffff81af805d>] ? iscsi_if_rx+0x2d/0x990
[ 4920.837281] [<ffffffff81053943>] ? sched_clock+0x13/0x20
[ 4920.838305] [<ffffffff81af805d>] ? iscsi_if_rx+0x2d/0x990
[ 4920.839336] [<ffffffff82634eb0>] mutex_lock_nested+0x40/0x50
[ 4920.840423] [<ffffffff81af805d>] iscsi_if_rx+0x2d/0x990
[ 4920.841434] [<ffffffff810dffed>] ? sub_preempt_count+0x9d/0xd0
[ 4920.842548] [<ffffffff82637bb0>] ? _raw_read_unlock+0x30/0x60
[ 4920.843666] [<ffffffff821f71de>] netlink_unicast+0x1ae/0x1f0
[ 4920.844751] [<ffffffff821f7997>] netlink_sendmsg+0x227/0x350
[ 4920.845850] [<ffffffff821857bd>] ? sock_update_netprioidx+0xdd/0x1b0
[ 4920.847060] [<ffffffff82185732>] ? sock_update_netprioidx+0x52/0x1b0
[ 4920.848276] [<ffffffff8217f226>] sock_aio_write+0x166/0x180
[ 4920.849348] [<ffffffff810dfe41>] ? get_parent_ip+0x11/0x50
[ 4920.850428] [<ffffffff811d0d9a>] do_sync_write+0xda/0x120
[ 4920.851465] [<ffffffff810dffed>] ? sub_preempt_count+0x9d/0xd0
[ 4920.852579] [<ffffffff810dfe41>] ? get_parent_ip+0x11/0x50
[ 4920.853608] [<ffffffff81791887>] ? security_file_permission+0x27/0xb0
[ 4920.854821] [<ffffffff811d0f4c>] vfs_write+0x16c/0x180
[ 4920.855781] [<ffffffff811d104f>] sys_write+0x4f/0xa0
[ 4920.856798] [<ffffffff82638e79>] system_call_fastpath+0x16/0x1b
[ 4920.877487] 1 lock held by trinity/9074:
[ 4920.878239] #0: (rx_queue_mutex){+.+...}, at: [<ffffffff81af805d>] iscsi_if_rx+0x2d/0x990
[ 4920.880005] Kernel panic - not syncing: hung_task: blocked tasks
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Acked-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit fb93df1c2d8b3b1fb16d6ee9e32554e0c038815d upstream.
The table has the following format:
typedef struct _ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT //usSrcDstTableOffset pointing to this structure
{
UCHAR ucNumberOfSrc;
USHORT usSrcObjectID[1];
UCHAR ucNumberOfDst;
USHORT usDstObjectID[1];
}ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT;
usSrcObjectID[] and usDstObjectID[] are variably sized, so we
can't access them directly. Use pointers and update the offset
appropriately when accessing the Dst members.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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