12 Jul, 2011

11 commits


11 Jul, 2011

6 commits

  • [ 191.310008] WARNING: kmemcheck: Caught 32-bit read from freed memory (f0d25f14)
    [ 191.310011] c056d2f088000000105fd2f00000000050415353040000000000000000000000
    [ 191.310020] i i i i f f f f f f f f f f f f f f f f f f f f f f f f f f f f
    [ 191.310027] ^
    [ 191.310029]
    [ 191.310032] Pid: 737, comm: modprobe Not tainted 3.0.0-rc5+ #268 Hewlett-Packard HP Compaq 6005 Pro SFF PC/3047h
    [ 191.310036] EIP: 0060:[] EFLAGS: 00010286 CPU: 0
    [ 191.310039] EIP is at hp_wmi_perform_query+0x104/0x150 [hp_wmi]
    [ 191.310041] EAX: f0d25601 EBX: f0d25f00 ECX: 000121cf EDX: 000121ce
    [ 191.310043] ESI: f0d25f10 EDI: f0f97ea8 EBP: f0f97ec4 ESP: c173f34c
    [ 191.310045] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
    [ 191.310046] CR0: 8005003b CR2: f540c000 CR3: 30f30000 CR4: 000006d0
    [ 191.310048] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
    [ 191.310050] DR6: ffff4ff0 DR7: 00000400
    [ 191.310051] [] hp_wmi_dock_state+0x2b/0x40 [hp_wmi]
    [ 191.310054] [] hp_wmi_init+0x93/0x1a8 [hp_wmi]
    [ 191.310057] [] do_one_initcall+0x30/0x170
    [ 191.310061] [] sys_init_module+0xef/0x1a60
    [ 191.310064] [] sysenter_do_call+0x12/0x28
    [ 191.310067] [] 0xffffffff

    Signed-off-by: Eric Dumazet
    Signed-off-by: Matthew Garrett

    Eric Dumazet
     
  • Using buffer->output[1] without mutex_lock()

    Signed-off-by: Jose Alonso
    Signed-off-by: Matthew Garrett

    Jose Alonso
     
  • This reverts commit a3d77411e8b2ad661958c1fbee65beb476ec6d70,

    as it causes a mess in the wireless rfkill status on some models.
    It is probably a bad idea to toggle the rfkill for all dell models
    without the respect to the claim that it is hardware-controlled.

    Cc: stable@kernel.org
    Signed-off-by: Keng-Yu Lin
    Signed-off-by: Matthew Garrett

    Keng-Yu Lin
     
  • Patch 2e711c04dbbf7a7732a3f7073b1fc285d12b369d
    (PM: Remove sysdev suspend, resume and shutdown operations)
    deleted sysdev_suspend(), which was being relied on to call
    check_wakeup_irqs() in suspend. If check_wakeup_irqs() is not
    called, wake interrupts that are pending when suspend is
    entered may be lost. It also breaks IRQCHIP_MASK_ON_SUSPEND,
    which is handled in check_wakeup_irqs().

    This patch adds a call to check_wakeup_irqs() in syscore_suspend(),
    similar to what was deleted in sysdev_suspend().

    Signed-off-by: Colin Cross
    Signed-off-by: Rafael J. Wysocki

    Colin Cross
     
  • I came across a memory leak during a cyclic cpu-online-offline test.

    Signed-off-by: Yu Luming
    Cc: Len Brown
    Signed-off-by: Andrew Morton
    Signed-off-by: Dave Jones

    Luming Yu
     
  • * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging:
    hwmon: (pmbus) Improve auto-detection of temperature status register
    hwmon: (lm95241) Fix negative temperature results
    hwmon: (lm95241) Fix chip detection code

    Linus Torvalds
     

10 Jul, 2011

9 commits

  • It is possible that a PMBus device supports the READ_TEMPERATURE2 and/or
    READ_TEMPERATURE3 registers but does not support READ_TEMPERATURE1.
    Improve temperature status register detection to address this condition.

    Reported-by: Jean Delvare
    Signed-off-by: Guenter Roeck
    Acked-by: Jean Delvare
    Cc: stable@kernel.org # 2.6.39+

    Guenter Roeck
     
  • Negative temperatures were returned in degrees C instead of milli-Degrees C.
    Also, negative temperatures were reported for remote temperature sensors even
    if the chip was configured for positive-only results.

    Fix by detecting temperature modes, and by treating negative temperatures
    similar to positive temperatures, with appropriate sign extension.

    Signed-off-by: Guenter Roeck
    Acked-by: Jean Delvare
    Cc: stable@kernel.org # 2.6.30+

    Guenter Roeck
     
  • * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
    ALSA: hda - Fix a copmile warning
    ASoC: ak4642: fixup snd_soc_update_bits mask for PW_MGMT2
    ALSA: hda - Change all ADCs for dual-adc switching mode for Realtek
    ASoC: Manage WM8731 ACTIVE bit as a supply widget
    ASoC: Don't set invalid name string to snd_card->driver field
    ASoC: Ensure we delay long enough for WM8994 FLL to lock when starting
    ASoC: Tegra: I2S: Ensure clock is enabled when writing regs
    ASoC: Fix Blackfin I2S _pointer() implementation return in bounds values
    ASoC: tlv320aic3x: Do soft reset to codec when going to bias off state
    ASoC: tlv320aic3x: Don't sync first two registers from register cache
    audio: tlv320aic26: fix PLL register configuration

    Linus Torvalds
     
  • * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
    PCI: conditional resource-reallocation through kernel parameter pci=realloc

    Linus Torvalds
     
  • * 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm:
    ARM: 6994/1: smp_twd: Fix typo in 'twd_timer_rate' printing
    ARM: 6987/1: l2x0: fix disabling function to avoid deadlock
    ARM: 6966/1: ep93xx: fix inverted RTS/DTR signals on uart1
    ARM: 6980/1: mmci: use StartBitErr to detect bad connections
    ARM: 6979/1: mach-vt8500: add forgotten irq_data conversion
    ARM: move memory layout sanity checking before meminfo initialization
    ARM: 6990/1: MAINTAINERS: add entry for ARM PMU profiling and debugging
    ARM: 6989/1: perf: do not start the PMU when no events are present
    ARM: dmabounce: fix map_single() error return value

    Linus Torvalds
     
  • * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
    drm/radeon/kms: clean up multiple crtc handling for evergreen+ (v2)

    Linus Torvalds
     
  • When firewire-ohci is bound to a Pinnacle MovieBoard, eventually a
    "Register access failure" is logged and an interrupt storm or a kernel
    panic happens. https://bugzilla.kernel.org/show_bug.cgi?id=36622

    Until this is sorted out (if that is going to succeed at all), let's
    just prevent firewire-ohci from touching these devices.

    Signed-off-by: Stefan Richter
    Cc:

    Stefan Richter
     
  • Regression introduced in commit 724d9f1cfba.

    Prior to that, expand_dfs_referral would regenerate the mount data string
    and then call cifs_parse_mount_options to re-parse it (klunky, but it
    worked). The above commit moved cifs_parse_mount_options out of cifs_mount,
    so the re-parsing of the new mount options no longer occurred. Fix it by
    making expand_dfs_referral re-parse the mount options.

    Signed-off-by: Jeff Layton
    Signed-off-by: Steve French

    Jeff Layton
     
  • This needs to be done regardless of whether that KConfig option is set
    or not.

    Reported-by: Sven-Haegar Koch
    Signed-off-by: Jeff Layton
    Signed-off-by: Steve French

    Jeff Layton
     

09 Jul, 2011

14 commits

  • Takashi Iwai
     
  • It's harmless but annyoing.
    sound/pci/hda/patch_realtek.c: In function ‘alc_cap_getput_caller’:
    sound/pci/hda/patch_realtek.c:2722:9: warning: ‘err’ may be used uninitialized in this function

    Signed-off-by: Takashi Iwai

    Takashi Iwai
     
  • …sound-2.6 into fix/asoc

    Takashi Iwai
     
  • …git/kgene/linux-samsung

    * 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
    ARM: S3C2440: fix section mismatch on mini2440
    ARM: S3C24XX: drop return codes in void function of dma.c
    ARM: S3C24XX: don't use uninitialized variable in dma.c
    ARM: EXYNOS4: Set appropriate I2C device variant
    ARM: S5PC100: Fix for compilation error
    spi/s3c64xx: Bug fix for SPI with different FIFO level
    ARM: SAMSUNG: Add tx_st_done variable
    ARM: EXYNOS4: Address a section mismatch w/ suspend issue.
    ARM: S5P: Fix bug on init of PWMTimers for HRTimer
    ARM: SAMSUNG: header file revised to prevent declaring duplicated
    ARM: EXYNOS4: fix improper gpio configuration
    ARM: EXYNOS4: Fix card detection for sdhci 0 and 2

    Linus Torvalds
     
  • * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
    regulator: max8997: Fix setting inappropriate value for ramp_delay variable
    regulator: db8500-prcmu: small fixes
    regulator: max8997: remove dependency on platform_data pointer
    regulator: MAX8997: Fix for divide by zero error
    regulator: max8952 - fix wrong gpio valid check

    Linus Torvalds
     
  • * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
    btrfs: fix oops when doing space balance
    Btrfs: don't panic if we get an error while balancing V2
    btrfs: add missing options displayed in mount output

    Linus Torvalds
     
  • Signed-off-by: Bjorn Helgaas
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Bjorn Helgaas
     
  • This driver handles the variants pca9530-pca9533, so it chose the name
    "pca953x". However, there is a gpio driver which decided on the same
    name. As a result, those two can't be loaded at the same time. Add a
    subsystem prefix to make the driver name unique. Device matching will not
    suffer, because both are I2C drivers which match using a
    i2c_device_id-table which is not altered.

    Signed-off-by: Wolfram Sang
    Acked-by: Jean Delvare
    Cc: Richard Purdie
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Wolfram Sang
     
  • remap_pfn_range() means map physical address pfn<vm_start = pfn << PAGE_SHIFT which
    is wrong acroding the original meaning of this function. And some driver
    developer using remap_pfn_range() with correct parameter will get
    unexpected result because vm_start is changed. It should be implementd
    like addr = pfn << PAGE_SHIFT but which is meanless on nommu arch, this
    patch just make it simply return.

    Parameter name and setting of vma->vm_flags also be fixed.

    Signed-off-by: Bob Liu
    Cc: Geert Uytterhoeven
    Cc: David Howells
    Acked-by: Greg Ungerer
    Cc: Mike Frysinger
    Cc: Bob Liu
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Bob Liu
     
  • This fixes a regression in 3.0 reported by Paul Parsons regarding the
    removal of the msleep(1) in the ds1wm_reset() function:

    : The linux-3.0-rc4 DS1WM 1-wire driver is logging "bus error, retrying"
    : error messages on an HP iPAQ hx4700 PDA (XScale-PXA270):
    :
    :
    : Driver for 1-wire Dallas network protocol.
    : DS1WM w1 busmaster driver - (c) 2004 Szabolcs Gyurko
    : 1-Wire driver for the DS2760 battery monitor chip - (c) 2004-2005, Szabolcs Gyurko
    : ds1wm ds1wm: pass: 1 bus error, retrying
    : ds1wm ds1wm: pass: 2 bus error, retrying
    : ds1wm ds1wm: pass: 3 bus error, retrying
    : ds1wm ds1wm: pass: 4 bus error, retrying
    : ds1wm ds1wm: pass: 5 bus error, retrying
    : ...
    :
    : The visible result is that the battery charging LED is erratic; sometimes
    : it works, mostly it doesn't.
    :
    : The linux-2.6.39 DS1WM 1-wire driver worked OK. I haven't tried 3.0-rc1,
    : 3.0-rc2, or 3.0-rc3.

    This sleep should not be required on normal circuitry provided the
    pull-ups on the bus are correctly adapted to the slaves. Unfortunately,
    this is not always the case. The sleep is restored but as a parameter to
    the probe function in the pdata.

    [akpm@linux-foundation.org: coding-style fixes]
    Reported-by: Paul Parsons
    Tested-by: Paul Parsons
    Signed-off-by: Jean-François Dagenais
    Cc: Evgeniy Polyakov
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jean-François Dagenais
     
  • commit 889976dbcb12 ("memcg: reclaim memory from nodes in round-robin
    order") adds an numa node round-robin for memcg. But the information is
    updated once per 10sec.

    This patch changes the update trigger from jiffies to memcg's event count.
    After this patch, numa scan information will be updated when we see 1024
    events of pagein/pageout under a memcg.

    [akpm@linux-foundation.org: attempt to repair code layout]
    Signed-off-by: KAMEZAWA Hiroyuki
    Cc: Michal Hocko
    Cc: Ying Han
    Cc: Johannes Weiner
    Cc: Daisuke Nishimura
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    KAMEZAWA Hiroyuki
     
  • Now, in mem_cgroup_hierarchical_reclaim(), mem_cgroup_local_usage() is
    used for checking whether the memcg contains reclaimable pages or not. If
    no pages in it, the routine skips it.

    But, mem_cgroup_local_usage() contains Unevictable pages and cannot handle
    "noswap" condition correctly. This doesn't work on a swapless system.

    This patch adds test_mem_cgroup_reclaimable() and replaces
    mem_cgroup_local_usage(). test_mem_cgroup_reclaimable() see LRU counter
    and returns correct answer to the caller. And this new function has
    "noswap" argument and can see only FILE LRU if necessary.

    [akpm@linux-foundation.org: coding-style fixes]
    [akpm@linux-foundation.org: fix kerneldoc layout]
    Signed-off-by: KAMEZAWA Hiroyuki
    Cc: Michal Hocko
    Cc: Ying Han
    Cc: Johannes Weiner
    Cc: Daisuke Nishimura
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    KAMEZAWA Hiroyuki
     
  • __tlb_remove_page() switches to a new batch page, but still checks space
    in the old batch. This check always fails, and causes a forced tlb flush.

    Signed-off-by: Shaohua Li
    Acked-by: Peter Zijlstra
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Shaohua Li
     
  • During allocator-intensive workloads, kswapd will be woken frequently
    causing free memory to oscillate between the high and min watermark. This
    is expected behaviour. Unfortunately, if the highest zone is small, a
    problem occurs.

    When balance_pgdat() returns, it may be at a lower classzone_idx than it
    started because the highest zone was unreclaimable. Before checking if it
    should go to sleep though, it checks pgdat->classzone_idx which when there
    is no other activity will be MAX_NR_ZONES-1. It interprets this as it has
    been woken up while reclaiming, skips scheduling and reclaims again. As
    there is no useful reclaim work to do, it enters into a loop of shrinking
    slab consuming loads of CPU until the highest zone becomes reclaimable for
    a long period of time.

    There are two problems here. 1) If the returned classzone or order is
    lower, it'll continue reclaiming without scheduling. 2) if the highest
    zone was marked unreclaimable but balance_pgdat() returns immediately at
    DEF_PRIORITY, the new lower classzone is not communicated back to kswapd()
    for sleeping.

    This patch does two things that are related. If the end_zone is
    unreclaimable, this information is communicated back. Second, if the
    classzone or order was reduced due to failing to reclaim, new information
    is not read from pgdat and instead an attempt is made to go to sleep. Due
    to this, it is also necessary that pgdat->classzone_idx be initialised
    each time to pgdat->nr_zones - 1 to avoid re-reads being interpreted as
    wakeups.

    Signed-off-by: Mel Gorman
    Reported-by: Pádraig Brady
    Tested-by: Pádraig Brady
    Tested-by: Andrew Lutomirski
    Acked-by: Rik van Riel
    Cc: Minchan Kim
    Cc: KOSAKI Motohiro
    Cc: Johannes Weiner
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Mel Gorman