1. 25 9月, 2012 20 次提交
  2. 24 9月, 2012 10 次提交
    • K
      xen/boot: Disable NUMA for PV guests. · 8d54db79
      Konrad Rzeszutek Wilk 提交于
      The hypervisor is in charge of allocating the proper "NUMA" memory
      and dealing with the CPU scheduler to keep them bound to the proper
      NUMA node. The PV guests (and PVHVM) have no inkling of where they
      run and do not need to know that right now. In the future we will
      need to inject NUMA configuration data (if a guest spans two or more
      NUMA nodes) so that the kernel can make the right choices. But those
      patches are not yet present.
      
      In the meantime, disable the NUMA capability in the PV guest, which
      also fixes a bootup issue. Andre says:
      
      "we see Dom0 crashes due to the kernel detecting the NUMA topology not
      by ACPI, but directly from the northbridge (CONFIG_AMD_NUMA).
      
      This will detect the actual NUMA config of the physical machine, but
      will crash about the mismatch with Dom0's virtual memory. Variation of
      the theme: Dom0 sees what it's not supposed to see.
      
      This happens with the said config option enabled and on a machine where
      this scanning is still enabled (K8 and Fam10h, not Bulldozer class)
      
      We have this dump then:
      NUMA: Warning: node ids are out of bound, from=-1 to=-1 distance=10
      Scanning NUMA topology in Northbridge 24
      Number of physical nodes 4
      Node 0 MemBase 0000000000000000 Limit 0000000040000000
      Node 1 MemBase 0000000040000000 Limit 0000000138000000
      Node 2 MemBase 0000000138000000 Limit 00000001f8000000
      Node 3 MemBase 00000001f8000000 Limit 0000000238000000
      Initmem setup node 0 0000000000000000-0000000040000000
        NODE_DATA [000000003ffd9000 - 000000003fffffff]
      Initmem setup node 1 0000000040000000-0000000138000000
        NODE_DATA [0000000137fd9000 - 0000000137ffffff]
      Initmem setup node 2 0000000138000000-00000001f8000000
        NODE_DATA [00000001f095e000 - 00000001f0984fff]
      Initmem setup node 3 00000001f8000000-0000000238000000
      Cannot find 159744 bytes in node 3
      BUG: unable to handle kernel NULL pointer dereference at (null)
      IP: [<ffffffff81d220e6>] __alloc_bootmem_node+0x43/0x96
      Pid: 0, comm: swapper Not tainted 3.3.6 #1 AMD Dinar/Dinar
      RIP: e030:[<ffffffff81d220e6>]  [<ffffffff81d220e6>] __alloc_bootmem_node+0x43/0x96
      .. snip..
        [<ffffffff81d23024>] sparse_early_usemaps_alloc_node+0x64/0x178
        [<ffffffff81d23348>] sparse_init+0xe4/0x25a
        [<ffffffff81d16840>] paging_init+0x13/0x22
        [<ffffffff81d07fbb>] setup_arch+0x9c6/0xa9b
        [<ffffffff81683954>] ? printk+0x3c/0x3e
        [<ffffffff81d01a38>] start_kernel+0xe5/0x468
        [<ffffffff81d012cf>] x86_64_start_reservations+0xba/0xc1
        [<ffffffff81007153>] ? xen_setup_runstate_info+0x2c/0x36
        [<ffffffff81d050ee>] xen_start_kernel+0x565/0x56c
      "
      
      so we just disable NUMA scanning by setting numa_off=1.
      
      CC: stable@vger.kernel.org
      Reported-and-Tested-by: NAndre Przywara <andre.przywara@amd.com>
      Acked-by: NAndre Przywara <andre.przywara@amd.com>
      Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      8d54db79
    • L
      Linux 3.6-rc7 · 979570e0
      Linus Torvalds 提交于
      979570e0
    • L
      Merge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild · 56bae802
      Linus Torvalds 提交于
      Pull kbuild fixes from Michal Marek:
       "There are two more kbuild fixes for 3.6.
      
        One fixes a race between x86's archscripts target and the rule
        (re)building scripts/basic/fixdep.  The second is a fix for the
        previous attempt at fixing make firmware_install with make 3.82.
        This new solution should work with any version of GNU make"
      
      * 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
        x86/kbuild: archscripts depends on scripts_basic
        firmware: fix directory creation rule matching with make 3.80
      56bae802
    • L
      Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging · 0737c8d7
      Linus Torvalds 提交于
      Pull hwmon subsystem fixes from Jean Delvare.
      
      * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
        hwmon: (fam15h_power) Tweak runavg_range on resume
        hwmon: (coretemp) Use get_online_cpus to avoid races involving CPU hotplug
        hwmon: (via-cputemp) Use get_online_cpus to avoid races involving CPU hotplug
      0737c8d7
    • L
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 0bf7a705
      Linus Torvalds 提交于
      Pull SCSI fixes from James Bottomley:
       "This is a set of four essential fixes: two oops related (bnx2i,
        virtio-scsi), one data corruption related (hpsa) and one failure to
        boot due to interrupt routing issues (mpt2ss).
      
        Signed-off-by: James Bottomley <JBottomley@Parallels.com>"
      
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        [SCSI] hpsa: fix handling of protocol error
        [SCSI] mpt2sas: Fix for issue - Unable to boot from the drive connected to HBA
        [SCSI] bnx2i: Fixed NULL ptr deference for 1G bnx2 Linux iSCSI offload
        [SCSI] scsi: virtio-scsi: Fix address translation failure of HighMem pages used by sg list
      0bf7a705
    • S
      edac_mc: edac_mc_free() cannot assume mem_ctl_info is registered in sysfs. · faa2ad09
      Shaun Ruffell 提交于
      Fix potential NULL pointer dereference in edac_unregister_sysfs() on
      system boot introduced in 3.6-rc1.
      
      Since commit 7a623c03 ("edac: rewrite the sysfs code to use struct
      device") edac_mc_alloc() no longer initializes embedded kobjects in
      struct mem_ctl_info.  Therefore edac_mc_free() can no longer simply
      decrement a kobject reference count to free the allocated memory unless
      the memory controller driver module had also called edac_mc_add_mc().
      
      Now edac_mc_free() will check if the newly embedded struct device has
      been registered with sysfs before using either the standard device
      release functions or freeing the data structures itself with logic
      pulled out of the error path of edac_mc_alloc().
      
      The BUG this patch resolves for me:
      
        BUG: unable to handle kernel NULL pointer dereference at   (null)
        EIP is at __wake_up_common+0x1a/0x6a
        Process modprobe (pid: 933, ti=f3dc6000 task=f3db9520 task.ti=f3dc6000)
        Call Trace:
          complete_all+0x3f/0x50
          device_pm_remove+0x23/0xa2
          device_del+0x34/0x142
          edac_unregister_sysfs+0x3b/0x5c [edac_core]
          edac_mc_free+0x29/0x2f [edac_core]
          e7xxx_probe1+0x268/0x311 [e7xxx_edac]
          e7xxx_init_one+0x56/0x61 [e7xxx_edac]
          local_pci_probe+0x13/0x15
        ...
      
      Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
      Cc: Shaohui Xie <Shaohui.Xie@freescale.com>
      Signed-off-by: NShaun Ruffell <sruffell@digium.com>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      faa2ad09
    • F
      edac_mc: fix messy kfree calls in the error path · ef6e7816
      Fengguang Wu 提交于
      coccinelle warns about:
      
      + drivers/edac/edac_mc.c:429:9-23: ERROR: reference preceded by free on line 429
      
         421         if (mci->csrows) {
       > 422                 for (chn = 0; chn < tot_channels; chn++) {
         423                         csr = mci->csrows[chn];
         424                         if (csr) {
       > 425                                 for (chn = 0; chn < tot_channels; chn++)
         426                                          kfree(csr->channels[chn]);
         427                                  kfree(csr);
         428                          }
       > 429                          kfree(mci->csrows[i]);
         430                  }
         431                  kfree(mci->csrows);
         432          }
      
      and that code block seem to mess things up in several ways (double free, memory
      leak, out-of-bound reads etc.):
      
      L422: The iterator "chn" and bound "tot_channels" are totally wrong. Should be
            "row" and "tot_csrows" respectively. Which means either memory leak, or
            out-of-bound reads (which if does not trigger an immediate page fault
            error, will further lead to kfree() on random addresses).
      
      L425: The inner loop is reusing the same iterator "chn" as the outer loop,
            which could lead to premature end of the outer loop, and hence memory leak.
      
      L429: The array index 'i' in mci->csrows[i] is a temporary value used in
            previous loops, and won't change at all in the current loop. Which
            means either out-of-bound read and possibly kfree(random number), or the
            same mci->csrows[i] get freed once and again, and possibly double free
            for the kfree(csr) in L427.
      
      L426/L427: a kfree(csr->channels) is needed in between to avoid leaking the memory.
      
      The buggy code was introduced by commit de3910eb ("edac: change the mem
      allocation scheme to make Documentation/kobject.txt happy") in the 3.6-rc1
      merge window. Fix it by freeing up resources in this order:
      
        free csrows[i]->channels[j]
        free csrows[i]->channels
        free csrows[i]
        free csrows
      
      CC: Mauro Carvalho Chehab <mchehab@redhat.com>
      CC: Shaun Ruffell <sruffell@digium.com>
      Signed-off-by: NFengguang Wu <fengguang.wu@intel.com>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      ef6e7816
    • A
      hwmon: (fam15h_power) Tweak runavg_range on resume · 5f0ecb90
      Andreas Herrmann 提交于
      The quirk introduced with commit
      00250ec9 (hwmon: fam15h_power: fix
      bogus values with current BIOSes) is not only required during driver
      load but also when system resumes from suspend. The BIOS might set the
      previously recommended (but unsuitable) initilization value for the
      running average range register during resume.
      Signed-off-by: NAndreas Herrmann <andreas.herrmann3@amd.com>
      Tested-by: NAndreas Hartmann <andihartmann@01019freenet.de>
      Signed-off-by: NJean Delvare <khali@linux-fr.org>
      Cc: stable@vger.kernel.org # 3.0+
      5f0ecb90
    • S
      hwmon: (coretemp) Use get_online_cpus to avoid races involving CPU hotplug · 641f1456
      Silas Boyd-Wickizer 提交于
      coretemp_init loops with for_each_online_cpu, adding platform_devices
      and sysfs interfaces, then calls register_hotcpu_notifier.  There is a
      race if a CPU is offlined or onlined after the loop, but before
      register_hotcpu_notifier.  The race might result in the absence of a
      platform_device+sysfs interface for an online CPU, or the presence of
      a platform_device+sysfs interface for an offline CPU.  A similar race
      occurs during coretemp_exit, after the module calls
      unregister_hotcpu_notifier, but before it unregisters all devices, a
      CPU might offline and a device for an offline CPU will exist for a
      short while.
      
      This fix surrounds for_each_online_cpu and register_hotcpu_notifier
      with get_online_cpus+put_online_cpus; and surrounds
      unregister_hotcpu_notifier and device unregistering with
      get_online_cpus+put_online_cpus.
      
      Build tested.
      Signed-off-by: NSilas Boyd-Wickizer <sbw@mit.edu>
      Signed-off-by: NJean Delvare <khali@linux-fr.org>
      641f1456
    • S
      hwmon: (via-cputemp) Use get_online_cpus to avoid races involving CPU hotplug · 1ec3ddfd
      Silas Boyd-Wickizer 提交于
      via_cputemp_init loops with for_each_online_cpu, adding
      platform_devices, then calls register_hotcpu_notifier.  If a CPU is
      offlined between the loop and register_hotcpu_notifier, then later
      onlined, via_cputemp_device_add will attempt to add platform devices
      with the same ID.  A similar race occurs during via_cputemp_exit,
      after the module calls unregister_hotcpu_notifier, a CPU might offline
      and a device will exist for a CPU that is offline.
      
      This fix surrounds for_each_online_cpu and register_hotcpu_notifier
      with get_online_cpus+put_online_cpus; and surrounds
      unregister_hotcpu_notifier and device unregistering with
      get_online_cpus+put_online_cpus.
      
      Build tested.
      Signed-off-by: NSilas Boyd-Wickizer <sbw@mit.edu>
      Acked-by: NHarald Welte <laforge@gnumonks.org>
      Signed-off-by: NJean Delvare <khali@linux-fr.org>
      1ec3ddfd
  3. 23 9月, 2012 4 次提交
    • L
      Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus · e5e77cf9
      Linus Torvalds 提交于
      Pull MIPS fixes from Ralf Baechle:
       "Random fixes across arch/mips, essentially.
      
        One fix for an issue in get_user_pages_fast() which previously was
        discovered on x86, a miscalculation in the support for the MIPS MT
        hardware multithreading support, the RTC support for the Malta and a
        fix for a spurious interrupt issue that seems to bite only very
        special Malta configurations."
      
      * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
        MIPS: Malta: Don't crash on spurious interrupt.
        MIPS: Malta: Remove RTC Data Mode bootstrap breakage
        MIPS: mm: Add compound tail page _mapcount when mapped
        MIPS: CMP/SMTC: Fix tc_id calculation
      e5e77cf9
    • L
      Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm · b3a297d1
      Linus Torvalds 提交于
      Pull ARM and clkdev fixes from Russell King:
       "Two patches for clkdev which resolve the long standing issue that the
        devm_* versions were dependent on clkdev, which they shouldn't have
        been.  Instead, they're dependent on HAVE_CLK instead, which implies
        that you're providing clk_get() and clk_put().
      
        A small fix to the ARM decompressor to ensure that the page tables are
        properly interpreted by the CPU, and reserve syscall 378 for kcmp (the
        checksyscalls.sh script is unfortunately currently broken so arch
        maintainers aren't getting notified of new syscalls...)
      
        Lastly, a larger fix for an issue between the common clk subsystem and
        smp_twd which causes warnings to be spat out."
      
      * 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
        ARM: reserve syscall 378 for kcmp
        ARM: 7535/1: Reprogram smp_twd based on new common clk framework notifiers
        ARM: 7537/1: clk: Fix release in devm_clk_put()
        ARM: 7532/1: decompressor: reset SCTLR.TRE for VMSA ARMv7 cores
        ARM: 7534/1: clk: Make the managed clk functions generically available
      b3a297d1
    • L
      Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid · cead24c1
      Linus Torvalds 提交于
      Pull HID fixes from Jiri Kosina:
       "The most important fix is Logitech Unifying receiver regression in
        device enumeration fix from Nestor Lopez Casado.  In addition to that,
        there is a small memory leak fix for Thinkpad keyboard driver from
        Axel Lin."
      
      * 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
        HID: Fix logitech-dj: missing Unifying device issue
        HID: lenovo-tpkbd: Fix memory leak in tpkbd_remove_tp()
      cead24c1
    • L
      Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6 · a4be6c77
      Linus Torvalds 提交于
      Pull cifs fix from Steve French.
      
      * 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
        cifs: fix return value in cifsConvertToUTF16
      a4be6c77
  4. 22 9月, 2012 6 次提交
    • N
      HID: Fix logitech-dj: missing Unifying device issue · 59626408
      Nestor Lopez Casado 提交于
      This patch fixes an issue introduced after commit 4ea54542
      ("HID: Fix race condition between driver core and ll-driver").
      
      After that commit, hid-core discards any incoming packet that arrives while
      hid driver's probe function is being executed.
      
      This broke the enumeration process of hid-logitech-dj, that must receive
      control packets in-band with the mouse and keyboard packets. Discarding mouse
      or keyboard data at the very begining is usually fine, but it is not the case
      for control packets.
      
      This patch forces a re-enumeration of the paired devices when a packet arrives
      that comes from an unknown device.
      
      Based on a patch originally written by Benjamin Tissoires.
      
      Cc: stable@vger.kernel.org   # v3.2+
      Signed-off-by: NNestor Lopez Casado <nlopezcasad@logitech.com>
      Signed-off-by: NJiri Kosina <jkosina@suse.cz>
      59626408
    • A
      HID: lenovo-tpkbd: Fix memory leak in tpkbd_remove_tp() · 39149980
      Axel Lin 提交于
      We need to kfree names for led_mute and led_micmute in tpkbd_remove_tp().
      Signed-off-by: NAxel Lin <axel.lin@gmail.com>
      Acked-by: NBernhard Seibold <mail@bernhard-seibold.de>
      Signed-off-by: NJiri Kosina <jkosina@suse.cz>
      39149980
    • A
      libceph: only kunmap kmapped pages · 5ce765a5
      Alex Elder 提交于
      In write_partial_msg_pages(), pages need to be kmapped in order to
      perform a CRC-32c calculation on them.  As an artifact of the way
      this code used to be structured, the kunmap() call was separated
      from the kmap() call and both were done conditionally.  But the
      conditions under which the kmap() and kunmap() calls were made
      differed, so there was a chance a kunmap() call would be done on a
      page that had not been mapped.
      
      The symptom of this was tripping a BUG() in kunmap_high() when
      pkmap_count[nr] became 0.
      Reported-by: NBryan K. Wright <bryan@virginia.edu>
      Signed-off-by: NAlex Elder <elder@inktank.com>
      Reviewed-by: NSage Weil <sage@inktank.com>
      5ce765a5
    • A
      rbd: drop dev reference on error in rbd_open() · 340c7a2b
      Alex Elder 提交于
      If a read-only rbd device is opened for writing in rbd_open(), it
      returns without dropping the just-acquired device reference.
      
      Fix this by moving the read-only check before getting the reference.
      Signed-off-by: NAlex Elder <elder@inktank.com>
      Reviewed-by: NYehuda Sadeh <yehuda@inktank.com>
      Reviewed-by: NJosh Durgin <josh.durgin@inktank.com>
      340c7a2b
    • L
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · abef3bd7
      Linus Torvalds 提交于
      Pull networking updates from David Miller:
       "More bug fixes, nothing gets past these guys"
      
       1) More kernel info leaks found by Mathias Krause, this time in the
          IPSEC configuration layers.
      
       2) When IPSEC policies change, we do not properly make sure that cached
          routes (which could now be stale) throughout the system will be
          revalidated.  Fix this by generalizing the generation count
          invalidation scheme used by ipv4.  From Nicolas Dichtel.
      
       3) When repairing TCP sockets, we need to allow to restore not just the
          send window scale, but the receive one too.  Extend the existing
          interface to achieve this in a backwards compatible way.  From
          Andrey Vagin.
      
       4) A fix for FCOE scatter gather feature validation erroneously caused
          scatter gather to be disabled for things like AOE too.  From Ed L
          Cashin.
      
       5) Several cases of mishandling of error pointers, from Mathias Krause,
          Wei Yongjun, and Devendra Naga.
      
       6) Fix gianfar build, from Richard Cochran.
      
       7) CAP_NET_* failures should return -EPERM not -EACCES, from Zhao
          Hongjiang.
      
       8) Hardware reset fix in janz-ican3 CAN driver, from Ira W Snyder.
      
       9) Fix oops during rmmod in ti_hecc CAN driver, from Marc Kleine-Budde.
      
      10) The removal of the conditional compilation of the clk support code
          in the stmmac driver broke things.  This is because the interfaces
          used are the ones that don't also perform the enable/disable of the
          clk.  Fix from Stefan Roese.
      
      11) The QFQ packet scheduler can record out of range virtual start
          times, resulting later in misbehavior and even crashes.  Fix from
          Paolo Valente.
      
      12) If MSG_WAITALL is used with IOAT DMA under TCP, we can wedge the
          receiver when the advertised receive window goes to zero.  Detect
          this case and force the processing of the IOAT DMA queue when it
          happens to avoid getting stuck.  Fix from Michal Kubecek.
      
      13) batman-adv assumes that test_bit() returns only 0 or 1, but this is
          not true for x86 (which returns -1 or 0, via the 'sbb' instruction).
          Fix from Linus Lussing.
      
      14) Fix small packet corruption in e1000, from Tushar Dave.
      
      15) make_blackhole() in the IPSEC policy code can do one read unlock too
          many, fix from Li RongQing.
      
      16) The new tcp_try_coalesce() code introduced a bug in TCP URG
          handling, fix from Eric Dumazet.
      
      17) Fix memory leak in __netif_receive_skb() when doing zerocopy and
          when hit an OOM condition.  From Michael S Tsirkin.
      
      18) netxen blindly deferences pdev->bus->self, which is not guarenteed
          to be non-NULL.  Fix from Nikolay Aleksandrov.
      
      19) Fix a performance regression caused by mistakes in ipv6 checksum
          validation in the bnx2x driver, fix from Michal Schmidt.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (45 commits)
        net/stmmac: Use clk_prepare_enable and clk_disable_unprepare
        net: change return values from -EACCES to -EPERM
        net/irda: sh_sir: fix return value check in sh_sir_set_baudrate()
        stmmac: fix return value check in stmmac_open_ext_timer()
        gianfar: fix phc index build failure
        ipv6: fix return value check in fib6_add()
        bnx2x: remove false warning regarding interrupt number
        can: ti_hecc: fix oops during rmmod
        can: janz-ican3: fix support for older hardware revisions
        net: do not disable sg for packets requiring no checksum
        aoe: assert AoE packets marked as requiring no checksum
        at91ether: return PTR_ERR if call to clk_get fails
        xfrm_user: don't copy esn replay window twice for new states
        xfrm_user: ensure user supplied esn replay window is valid
        xfrm_user: fix info leak in copy_to_user_tmpl()
        xfrm_user: fix info leak in copy_to_user_policy()
        xfrm_user: fix info leak in copy_to_user_state()
        xfrm_user: fix info leak in copy_to_user_auth()
        net: qmi_wwan: adding Huawei E367, ZTE MF683 and Pantech P4200
        tcp: restore rcv_wscale in a repair mode (v2)
        ...
      abef3bd7
    • L
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc · 6219844e
      Linus Torvalds 提交于
      Pull sparc updates from David Miller:
      
      1) Debugging builds on 32-bit sparc need to handle the R_SPARC_DISP32
         relocation, not just 64-bit sparc.  From Andreas Larsson.
      
      2) Wei Yongjun noticed that module_alloc() on sparc can return an
         error pointer, but that's not allowed.  module_alloc() should
         return only a valid pointer, or NULL.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
        sparc: fix the return value of module_alloc()
        sparc32: Enable the relocation target R_SPARC_DISP32 for sparc32
      6219844e