28 Sep, 2014
4 commits
-
Pull cgroup fixes from Tejun Heo:
"This is quite late but these need to be backported anyway.This is the fix for a long-standing cpuset bug which existed from
2009. cpuset makes use of PF_SPREAD_{PAGE|SLAB} flags to modify the
task's memory allocation behavior according to the settings of the
cpuset it belongs to; unfortunately, when those flags have to be
changed, cpuset did so directly even whlie the target task is running,
which is obviously racy as task->flags may be modified by the task
itself at any time. This obscure bug manifested as corrupt
PF_USED_MATH flag leading to a weird crash.The bug is fixed by moving the flag to task->atomic_flags. The first
two are prepatory ones to help defining atomic_flags accessors and the
third one is the actual fix"* 'for-3.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cpuset: PF_SPREAD_PAGE and PF_SPREAD_SLAB should be atomic flags
sched: add macros to define bitops for task atomic flags
sched: fix confusing PFA_NO_NEW_PRIVS constant -
Pull ARM SoC fixes from Olof Johansson:
"Here's our last set of fixes for 3.17. Most of these are for TI
platforms, fixing some noisy Kconfig issues, runtime clock and power
issues on several platforms and NAND timings on DRA7.There are also a couple of bug fixes for i.MX, one for QCOM and a
small fix to avoid section mismatch noise on PXA.Diffstat looks large, partially due to some tables being updated and
thus touching many lines. The qcom gsbi change also restructures
clock management a bit and thus touches a bunch of lines.All in all, a bit more changes than we'd like at this point, but
nothing stands out as risky either so it seems like the right thing to
send it up now instead of holding it to the merge window"* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
drivers/soc: qcom: do not disable the iface clock in probe
ARM: imx: fix .is_enabled() of shared gate clock
ARM: OMAP3: Fix I/O chain clock line assertion timed out error
ARM: keystone: dts: fix bindings for pcie and usb clock nodes
bus: omap_l3_noc: Fix connID for OMAP4
ARM: DT: imx53: fix lvds channel 1 port
ARM: dts: cm-t54: fix serial console power supply.
ARM: dts: dra7-evm: Fix NAND GPMC timings
ARM: pxa: fix section mismatch warning for pxa_timer_nodt_init
ARM: OMAP: Fix Kconfig warning for omap1 -
Pull MIPS fixes from Ralf Baechle:
"The final round of fixes. One corner case in the math emulator and
another one in the mcount function for ftrace"* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: mcount: Adjust stack pointer for static trace in MIPS32
MIPS: Fix MFC1 & MFHC1 emulation for 64-bit MIPS systems -
Pull x86 fixes from Ingo Molnar:
"This has:- EFI revert to fix a boot regression
- early_ioremap() fix for boot failure
- KASLR fix for possible boot failures
- EFI fix for corrupted string printing
- remove a misleading EFI bootup 'failed!' error messageUnfortunately it's all rather close to the merge window"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/efi: Truncate 64-bit values when calling 32-bit OutputString()
x86/efi: Delete misleading efi_printk() error message
Revert "efi/x86: efistub: Move shared dependencies to "
x86/kaslr: Avoid the setup_data area when picking location
x86 early_ioremap: Increase FIX_BTMAPS_SLOTS to 8
27 Sep, 2014
1 commit
-
Pull input fix from Dmitry Torokhov:
"A small fixup to i8042 adding Asus X450LCP to the nomux list"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: i8042 - fix Asus X450LCP touchpad detection
26 Sep, 2014
19 commits
-
Pull scheduler fixes from Ingo Molnar:
"A CONFIG_STACK_GROWSUP=y fix, and a hotplug llc CPU mask fix"* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Fix unreleased llc_shared_mask bit during CPU hotplug
sched: Fix end_of_stack() and location of stack canary for architectures using CONFIG_STACK_GROWSUP -
Merge fixes from Andrew Morton:
"9 fixes"* emailed patches from Andrew Morton :
mm: softdirty: keep bit when zapping file pte
fs/cachefiles: add missing \n to kerror conversions
genalloc: fix device node resource counter
drivers/rtc/rtc-efi.c: add missing module alias
mm, slab: initialize object alignment on cache creation
mm: softdirty: addresses before VMAs in PTE holes aren't softdirty
ocfs2/dlm: do not get resource spinlock if lockres is new
nilfs2: fix data loss with mmap()
ocfs2: free vol_label in ocfs2_delete_osb() -
This fixes the same bug as b43790eedd31 ("mm: softdirty: don't forget to
save file map softdiry bit on unmap") and 9aed8614af5a ("mm/memory.c:
don't forget to set softdirty on file mapped fault") where the return
value of pte_*mksoft_dirty was being ignored.To be sure that no other pte/pmd "mk" function return values were being
ignored, I annotated the functions in arch/x86/include/asm/pgtable.h
with __must_check and rebuilt.The userspace effect of this bug is that the softdirty mark might be
lost if a file mapped pte get zapped.Signed-off-by: Peter Feiner
Acked-by: Cyrill Gorcunov
Cc: Pavel Emelyanov
Cc: Jamie Liu
Cc: Hugh Dickins
Cc: [3.12+]
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Commit 0227d6abb378 ("fs/cachefiles: replace kerror by pr_err") didn't
include newline featuring in original kerror definitionSigned-off-by: Fabian Frederick
Reported-by: David Howells
Acked-by: David Howells
Cc: [3.16.x]
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Decrement the np_pool device_node refcount, which was incremented on
the preceding of_parse_phandle() call.Signed-off-by: Vladimir Zapolskiy
Cc: Will Deacon
Cc: Olof Johansson
Cc: Catalin Marinas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Without proper alias kernel module is not loaded for rtc-efi driver.
Signed-off-by: Pali Rohár
Cc: dann frazier
Cc: Alessandro Zummo
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Since commit 4590685546a3 ("mm/sl[aou]b: Common alignment code"), the
"ralign" automatic variable in __kmem_cache_create() may be used as
uninitialized.The proper alignment defaults to BYTES_PER_WORD and can be overridden by
SLAB_RED_ZONE or the alignment specified by the caller.This fixes https://bugzilla.kernel.org/show_bug.cgi?id=85031
Signed-off-by: David Rientjes
Reported-by: Andrei Elovikov
Acked-by: Christoph Lameter
Cc: Pekka Enberg
Cc: Joonsoo Kim
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
In PTE holes that contain VM_SOFTDIRTY VMAs, unmapped addresses before
VM_SOFTDIRTY VMAs are reported as softdirty by /proc/pid/pagemap. This
bug was introduced in commit 68b5a6524856 ("mm: softdirty: respect
VM_SOFTDIRTY in PTE holes"). That commit made /proc/pid/pagemap look at
VM_SOFTDIRTY in PTE holes but neglected to observe the start of VMAs
returned by find_vma.Tested:
Wrote a selftest that creates a PMD-sized VMA then unmaps the first
page and asserts that the page is not softdirty. I'm going to send the
pagemap selftest in a later commit.Signed-off-by: Peter Feiner
Cc: Cyrill Gorcunov
Cc: Pavel Emelyanov
Cc: Hugh Dickins
Cc: Naoya Horiguchi
Cc: "Kirill A. Shutemov"
Cc: Jamie Liu
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
There is a deadlock case which reported by Guozhonghua:
https://oss.oracle.com/pipermail/ocfs2-devel/2014-September/010079.htmlThis case is caused by &res->spinlock and &dlm->master_lock
misordering in different threads.It was introduced by commit 8d400b81cc83 ("ocfs2/dlm: Clean up refmap
helpers"). Since lockres is new, it doesn't not require the
&res->spinlock. So remove it.Fixes: 8d400b81cc83 ("ocfs2/dlm: Clean up refmap helpers")
Signed-off-by: Joseph Qi
Reviewed-by: joyce.xue
Reported-by: Guozhonghua
Cc: Joel Becker
Cc: Mark Fasheh
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This bug leads to reproducible silent data loss, despite the use of
msync(), sync() and a clean unmount of the file system. It is easily
reproducible with the following script:----------------[BEGIN SCRIPT]--------------------
mkfs.nilfs2 -f /dev/sdb
mount /dev/sdb /mntdd if=/dev/zero bs=1M count=30 of=/mnt/testfile
umount /mnt
mount /dev/sdb /mnt
CHECKSUM_BEFORE="$(md5sum /mnt/testfile)"/root/mmaptest/mmaptest /mnt/testfile 30 10 5
sync
CHECKSUM_AFTER="$(md5sum /mnt/testfile)"
umount /mnt
mount /dev/sdb /mnt
CHECKSUM_AFTER_REMOUNT="$(md5sum /mnt/testfile)"
umount /mntecho "BEFORE MMAP:\t$CHECKSUM_BEFORE"
echo "AFTER MMAP:\t$CHECKSUM_AFTER"
echo "AFTER REMOUNT:\t$CHECKSUM_AFTER_REMOUNT"
----------------[END SCRIPT]--------------------The mmaptest tool looks something like this (very simplified, with
error checking removed):----------------[BEGIN mmaptest]--------------------
data = mmap(NULL, file_size - file_offset, PROT_READ | PROT_WRITE,
MAP_SHARED, fd, file_offset);for (i = 0; i < write_count; ++i) {
memcpy(data + i * 4096, buf, sizeof(buf));
msync(data, file_size - file_offset, MS_SYNC))
}
----------------[END mmaptest]--------------------The output of the script looks something like this:
BEFORE MMAP: 281ed1d5ae50e8419f9b978aab16de83 /mnt/testfile
AFTER MMAP: 6604a1c31f10780331a6850371b3a313 /mnt/testfile
AFTER REMOUNT: 281ed1d5ae50e8419f9b978aab16de83 /mnt/testfileSo it is clear, that the changes done using mmap() do not survive a
remount. This can be reproduced a 100% of the time. The problem was
introduced in commit 136e8770cd5d ("nilfs2: fix issue of
nilfs_set_page_dirty() for page at EOF boundary").If the page was read with mpage_readpage() or mpage_readpages() for
example, then it has no buffers attached to it. In that case
page_has_buffers(page) in nilfs_set_page_dirty() will be false.
Therefore nilfs_set_file_dirty() is never called and the pages are never
collected and never written to disk.This patch fixes the problem by also calling nilfs_set_file_dirty() if the
page has no buffers attached to it.[akpm@linux-foundation.org: s/PAGE_SHIFT/PAGE_CACHE_SHIFT/]
Signed-off-by: Andreas Rohner
Tested-by: Andreas Rohner
Signed-off-by: Ryusuke Konishi
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
osb->vol_label is malloced in ocfs2_initialize_super but not freed if
error occurs or during umount, thus causing a memory leak.Signed-off-by: Joseph Qi
Reviewed-by: joyce.xue
Cc: Mark Fasheh
Cc: Joel Becker
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Every mcount() call in the MIPS 32-bit kernel is done as follows:
[...]
move at, ra
jal _mcount
addiu sp, sp, -8
[...]but upon returning from the mcount() function, the stack pointer
is not adjusted properly. This is explained in details in 58b69401c797
(MIPS: Function tracer: Fix broken function tracing).Commit ad8c396936e3 ("MIPS: Unbreak function tracer for 64-bit kernel.)
fixed the stack manipulation for 64-bit but it didn't fix it completely
for MIPS32.Signed-off-by: Markos Chandras
Cc:
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7792/
Signed-off-by: Ralf Baechle -
Commit bbd426f542cb "MIPS: Simplify FP context access" modified the
SIFROMREG & SIFROMHREG macros such that they return unsigned rather
than signed 32b integers. I had believed that to be fine, but
inadvertently missed the MFC1 & MFHC1 cases which write to a struct
pt_regs regs element. On MIPS32 this is fine, but on 64 bit those
saved regs' fields are 64 bit wide. Using unsigned values caused the
32 bit value from the FP register to be zero rather than sign extended
as the architecture specifies, causing incorrect emulation of the
MFC1 & MFHc1 instructions. Fix by reintroducing the casts to signed
integers, and therefore the sign extension.Signed-off-by: Paul Burton
Cc: stable@vger.kernel.org # v3.15+
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7848/
Signed-off-by: Ralf Baechle -
Pull ACPI and power management fixes from Rafael Wysocki:
"These are regression fixes (ACPI hotplug, cpufreq, hibernation, ACPI
LPSS driver), fixes for stuff that never worked correctly (ACPI GPIO
support in some cases and a wrong sign of an error code in the ACPI
core in one place), and one blacklist item for ACPI backlight
handling.Specifics:
- Revert of a recent hibernation core commit that introduced a NULL
pointer dereference during resume for at least one user (Rafael J
Wysocki).- Fix for the ACPI LPSS (Low-Power Subsystem) driver to disable
asynchronous PM callback execution for LPSS devices during system
suspend/resume (introduced in 3.16) which turns out to break
ordering expectations on some systems. From Fu Zhonghui.- cpufreq core fix related to the handling of sysfs nodes during
system suspend/resume that has been broken for intel_pstate since
3.15 from Lan Tianyu.- Restore the generation of "online" uevents for ACPI container
devices that was removed in 3.14, but some user space utilities
turn out to need them (Rafael J Wysocki).- The cpufreq core fails to release a lock in an error code path
after changes made in 3.14. Fix from Prarit Bhargava.- ACPICA and ACPI/GPIO fixes to make the handling of ACPI GPIO
operation regions (which means AML using GPIOs) work correctly in
all cases from Bob Moore and Srinivas Pandruvada.- Fix for a wrong sign of the ACPI core's create_modalias() return
value in case of an error from Mika Westerberg.- ACPI backlight blacklist entry for ThinkPad X201s from Aaron Lu"
* tag 'pm+acpi-3.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()"
gpio / ACPI: Use pin index and bit length
ACPICA: Update to GPIO region handler interface.
ACPI / platform / LPSS: disable async suspend/resume of LPSS devices
cpufreq: release policy->rwsem on error
cpufreq: fix cpufreq suspend/resume for intel_pstate
ACPI / scan: Correct error return value of create_modalias()
ACPI / video: disable native backlight for ThinkPad X201s
ACPI / hotplug: Generate online uevents for ACPI containers -
Pull i2c fixes from Wolfram Sang:
"This is probably not the kind of pull request you want to see that
late in the cycle. Yet, the ACPI refactorization was problematic
again and caused another two issues which need fixing. My holidays
with limited internet (plus travelling) and the developer's illness
didn't help either :(The details:
- ACPI code was refactored out into a seperate file and as a
side-effect, the i2c-core module got renamed. Jean Delvare
rightfully complained about the rename being problematic for
distributions. So, Mika and I thought the least problematic way to
deal with it is to move all the code back into the main i2c core
source file. This is mainly a huge code move with some #ifdeffery
applied. No functional code changes. Our personal tests and the
testbots did not find problems. (I was thinking about reverting,
too, yet that would also have ~800 lines changed)- The new ACPI code also had a NULL pointer exception, thanks to
Peter for finding and fixing it.- Mikko fixed a locking problem by decoupling clock_prepare and
clock_enable.- Addy learnt that the datasheet was wrong and reimplemented the
frequency setup according to the new algorithm.- Fan fixed an off-by-one error when copying data
- Janusz fixed a copy'n'paste bug which gave a wrong error message
- Sergei made sure that "don't touch" bits are not accessed"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: acpi: Fix NULL Pointer dereference
i2c: move acpi code back into the core
i2c: rk3x: fix divisor calculation for SCL frequency
i2c: mxs: fix error message in pio transfer
i2c: ismt: use correct length when copy buffer
i2c: rcar: fix RCAR_IRQ_ACK_{RECV|SEND}
i2c: tegra: Move clk_prepare/clk_set_rate to probe -
Transfer Documentation maintainership to Jiri Kosina.
Thanks, Jiri.I'll still be reviewing and working on documentation.
Signed-off-by: Randy Dunlap
Acked-by: Jiri Kosina
Signed-off-by: Linus Torvalds -
* pm-cpufreq:
cpufreq: release policy->rwsem on error
cpufreq: fix cpufreq suspend/resume for intel_pstate* pm-sleep:
Revert "PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()" -
* acpi-hotplug:
ACPI / hotplug: Generate online uevents for ACPI containers* acpi-scan:
ACPI / scan: Correct error return value of create_modalias()* acpi-lpss:
ACPI / platform / LPSS: disable async suspend/resume of LPSS devices* acpi-gpio:
gpio / ACPI: Use pin index and bit length
ACPICA: Update to GPIO region handler interface.* acpi-video:
ACPI / video: disable native backlight for ThinkPad X201s -
Pull gpio fixes from Linus Walleij:
"Two GPIO fixes:- GPIO direction flags where handled wrong in the new descriptor-
based API, so direction changes did not always "take".- Fix a handler installation race in the generic GPIO irqchip code"
* tag 'gpio-v3.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: Fix potential NULL handler data in chained irqchip handler
gpio: Fix gpio direction flags not getting set
25 Sep, 2014
16 commits
-
Pull EFI fixes from Matt Fleming:
* Revert the static library changes from the merge window since they're
causing issues for Macbooks and Fedora + Grub2 (Matt Fleming)* Delete the misleading "setup_efi_pci() failed!" message which some
people are seeing when booting EFI (Matt Fleming)* Fix printing strings from the 32-bit EFI boot stub by only passing
32-bit addresses to the firmware (Matt Fleming)Signed-off-by: Ingo Molnar
-
Pull devicetree bug fixes and documentation from Grant Likely:
"Several bug fix commits for issues found in the v3.17 rc series.Most of these are minor in that they aren't actively dangerous, but
they have been seen in the wild. The one important fix is commit
7dbe5849fb50 ("of: make sure of_alias is initialized before accessing
it"), without which some powerpc platforms will fail to find stdout
for the console"* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux:
of/fdt: fix memory range check
of: Fix memory block alignment in early_init_dt_add_memory_arch()
of: make sure of_alias is initialized before accessing it
of: Documentation regarding attaching OF Selftest testdata
of: Disabling OF functions that use sysfs if CONFIG_SYSFS disabled
of: correct of_console_check()'s return value -
If adapter->dev.parent == NULL there is a NULL pointer dereference in
acpi_i2c_install_space_handler and acpi_i2c_remove_space_handler.This is present since introduction of this code:
366047515c6e "i2c: rework kernel config I2C_ACPI" or even
da3c6647ee08 "I2C/ACPI: Clean up I2C ACPI code and Add CONFIG_I2C_ACPI"The adapter->dev.parent == NULL case is valid for the i2c_stub,
so loading i2c_stub with ACPI_I2C_OPREGION enabled results in an oops.
This is also valid at least for i2c_tiny_usb and i2c_robotfuzz_osif.Fix by checking whether it is null before calling ACPI_HANDLE.
Signed-off-by: Peter Huewe
Acked-by: Mika Westerberg
Signed-off-by: Wolfram Sang -
Commit 5d98e61d337c ("I2C/ACPI: Add i2c ACPI operation region support")
renamed the i2c-core module. This may cause regressions for
distributions, so put the ACPI code back into the core.Reported-by: Jean Delvare
Signed-off-by: Wolfram Sang
Tested-by: Lan Tianyu
Tested-by: Mika Westerberg -
In cases where board has below memory DT node
memory{
device_type = "memory";
reg = ;
};Check on the memory range in fdt.c will always fail because it is
comparing MAX_PHYS_ADDR with base + size, in fact it should compare
it with base + size - 1.This issue was originally noticed on Qualcomm IFC6410 board.
Without this patch kernel shows up noticed unnecessary warnings[ 0.000000] Machine model: Qualcomm APQ8064/IFC6410
[ 0.000000] Ignoring memory range 0xffffffff - 0x100000000
[ 0.000000] cma: Reserved 64 MiB at ab800000as a result the size get reduced to 0x7fffffff which looks wrong.
This patch fixes the check involved in generating this warning and
as a result it also fixes the wrong size calculation.Signed-off-by: Srinivas Kandagatla
[grant.likely: adjust new size calculation also]
Signed-off-by: Grant Likely -
When we change cpuset.memory_spread_{page,slab}, cpuset will flip
PF_SPREAD_{PAGE,SLAB} bit of tsk->flags for each task in that cpuset.
This should be done using atomic bitops, but currently we don't,
which is broken.Tetsuo reported a hard-to-reproduce kernel crash on RHEL6, which happened
when one thread tried to clear PF_USED_MATH while at the same time another
thread tried to flip PF_SPREAD_PAGE/PF_SPREAD_SLAB. They both operate on
the same task.Here's the full report:
https://lkml.org/lkml/2014/9/19/230To fix this, we make PF_SPREAD_PAGE and PF_SPREAD_SLAB atomic flags.
v4:
- updated mm/slab.c. (Fengguang Wu)
- updated Documentation.Cc: Peter Zijlstra
Cc: Ingo Molnar
Cc: Miao Xie
Cc: Kees Cook
Fixes: 950592f7b991 ("cpusets: update tasks' page/slab spread flags in time")
Cc: # 2.6.31+
Reported-by: Tetsuo Handa
Signed-off-by: Zefan Li
Signed-off-by: Tejun Heo -
This will simplify code when we add new flags.
v3:
- Kees pointed out that no_new_privs should never be cleared, so we
shouldn't define task_clear_no_new_privs(). we define 3 macros instead
of a single one.v2:
- updated scripts/tags.sh, suggested by PeterCc: Ingo Molnar
Cc: Miao Xie
Cc: Tetsuo Handa
Acked-by: Peter Zijlstra (Intel)
Acked-by: Kees Cook
Signed-off-by: Zefan Li
Signed-off-by: Tejun Heo -
Commit 1d4457f99928 ("sched: move no_new_privs into new atomic flags")
defined PFA_NO_NEW_PRIVS as hexadecimal value, but it is confusing
because it is used as bit number. Redefine it as decimal bit number.Note this changes the bit position of PFA_NOW_NEW_PRIVS from 1 to 0.
Cc: Peter Zijlstra
Cc: Ingo Molnar
Cc: Miao Xie
Signed-off-by: Tetsuo Handa
Acked-by: Kees Cook
[ lizf: slightly modified subject and changelog ]
Signed-off-by: Zefan Li
Signed-off-by: Tejun Heo -
We need to add this module to the nomux table to be able to detect the
touchpad.Cc: stablevger.kernel.org
Signed-off-by: Marcos Paulo de Souza
Signed-off-by: Dmitry Torokhov -
Revert commit 6efde38f0769 (PM / Hibernate: Iterate over set bits
instead of PFNs in swsusp_free()) that introduced a NULL pointer
dereference during system resume from hibernation:BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [] swsusp_free+0x21/0x190
PGD b39c2067 PUD b39c1067 PMD 0
Oops: 0000 [#1] SMP
Modules linked in:
CPU: 1 PID: 4898 Comm: s2disk Tainted: G C 3.17-rc5-amd64 #1 Debian 3.17~rc5-1~exp1
Hardware name: LENOVO 2776LEG/2776LEG, BIOS 6EET55WW (3.15 ) 12/19/2011
task: ffff88023155ea40 ti: ffff8800b3b14000 task.ti: ffff8800b3b14000
RIP: 0010:[] []
swsusp_free+0x21/0x190
RSP: 0018:ffff8800b3b17ea8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8800b39bab00 RCX: 0000000000000001
RDX: ffff8800b39bab10 RSI: ffff8800b39bab00 RDI: 0000000000000000
RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000000
R10: ffff8800b39bab10 R11: 0000000000000246 R12: ffffea0000000000
R13: ffff880232f485a0 R14: ffff88023ac27cd8 R15: ffff880232927590
FS: 00007f406d83b700(0000) GS:ffff88023bc80000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 00000000b3a62000 CR4: 00000000000007e0
Stack:
ffff8800b39bab00 0000000000000010 ffff880232927590 ffffffff810acb4a
ffff8800b39bab00 ffffffff811a955a ffff8800b39bab10 0000000000000000
ffff88023155f098 ffffffff81a6b8c0 ffff88023155ea40 0000000000000007
Call Trace:
[] ? snapshot_release+0x2a/0xb0
[] ? __fput+0xca/0x1d0
[] ? task_work_run+0x97/0xd0
[] ? do_notify_resume+0x69/0xa0
[] ? int_signal+0x12/0x17
Code: 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 41 54 48 8b 05 ba 62 9c 00 49 bc 00 00 00 00 00 ea ff ff 48 8b 3d a1 62 9c 00 55 53 8b 10 48 89 50 18 48 8b 52 20 48 c7 40 28 00 00 00 00 c7 40
RIP [] swsusp_free+0x21/0x190
RSP
CR2: 0000000000000000
---[ end trace f02be86a1ec0cccb ]---due to forbidden_pages_map being NULL in swsusp_free().
Fixes: 6efde38f0769 "PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()"
Reported-by: Bjørn Mork
Signed-off-by: Rafael J. Wysocki -
Pull drm fixes from Dave Airlie:
"Some final radeon and i915 fixes, black screens mostly"* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/radeon/cik: use a separate counter for CP init timeout
drm/i915/hdmi: fix hdmi audio state readout
drm/i915: Don't leak command parser tables on suspend/resume
drm/radeon: add PX quirk for asus K53TK
drm/radeon: add a backlight quirk for Amilo Xi 2550
drm/radeon: add a module parameter for backlight control (v2)
drm/radeon: Update IH_RB_RPTR register after each processed interrupt
drm/radeon: Make IH ring overflow debugging output more useful
drm/radeon: Clear RB_OVERFLOW bit earlier -
Fix code when the operation region callback is for an gpio, which
is not at index 0 and for partial pins in a GPIO definition.
For example:
Name (GMOD, ResourceTemplate ()
{
//3 Outputs that define the Power mode of the device
GpioIo (Exclusive, PullDown, , , , "\\_SB.GPI2") {10, 11, 12}
})
}If opregion callback calls is for:
- Set pin 10, then address = 0 and bit length = 1
- Set pin 11, then address = 1 and bit length = 1
- Set for both pin 11 and pin 12, then address = 1, bit length = 2This change requires updated ACPICA gpio operation handler code to
send the pin index and bit length.Fixes: 473ed7be0da0 (gpio / ACPI: Add support for ACPI GPIO operation regions)
Signed-off-by: Srinivas Pandruvada
Acked-by: Mika Westerberg
Acked-by: Linus Walleij
Cc: 3.15+ # 3.15+: 75ec6e55f138 ACPICA: Update to GPIO region handler interface.
Signed-off-by: Rafael J. Wysocki -
If we're executing the 32-bit efi_char16_printk() code path (i.e.
running on top of 32-bit firmware) we know that efi_early->text_output
will be a 32-bit value, even though ->text_output has type u64.Unfortunately, we currently pass ->text_output directly to
efi_early->call() so for CONFIG_X86_32 the compiler will push a 64-bit
value onto the stack, causing the other parameters to be misaligned.The way we handle this in the rest of the EFI boot stub is to pass
pointers as arguments to efi_early->call(), which automatically do the
right thing (pointers are 32-bit on CONFIG_X86_32, and we simply ignore
the upper 32-bits of the argument register if running in 64-bit mode
with 32-bit firmware).This fixes a corruption bug when printing strings from the 32-bit EFI
boot stub.Link: https://bugzilla.kernel.org/show_bug.cgi?id=84241
Signed-off-by: Matt Fleming -
Changes to correct several GPIO issues:
1) The update_rule in a GPIO field definition is now ignored;
a read-modify-write operation is never performed for GPIO fields.
(Internally, this means that the field assembly/disassembly
code is completely bypassed for GPIO.)2) The Address parameter passed to a GPIO region handler is
now the bit offset of the field from a previous Connection()
operator. Thus, it becomes a "Pin Number Index" into the
Connection() resource descriptor.3) The bit_width parameter passed to a GPIO region handler is
now the exact bit width of the GPIO field. Thus, it can be
interpreted as "number of pins".Overall, we can now say that the region handler interface
to GPIO handlers is a raw "bit/pin" addressed interface, not
a byte-addressed interface like the system_memory handler interface.Signed-off-by: Bob Moore
Signed-off-by: Lv Zheng
Cc: 3.15+ # 3.15+
Signed-off-by: Rafael J. Wysocki -
- fix a backlight regression resulting in dark screen
- add a PX quirk to avoid a hang with runtime pm
- fix an init issue on the CIK compute rings
- fix IH ring buffer overflows gracefully* 'drm-fixes-3.17' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon/cik: use a separate counter for CP init timeout
drm/radeon: add PX quirk for asus K53TK
drm/radeon: add a backlight quirk for Amilo Xi 2550
drm/radeon: add a module parameter for backlight control (v2)
drm/radeon: Update IH_RB_RPTR register after each processed interrupt
drm/radeon: Make IH ring overflow debugging output more useful
drm/radeon: Clear RB_OVERFLOW bit earlier -
a couple of small fixes for 3.17 still.
* tag 'drm-intel-fixes-2014-09-24' of git://anongit.freedesktop.org/drm-intel:
drm/i915/hdmi: fix hdmi audio state readout
drm/i915: Don't leak command parser tables on suspend/resume
