1. 25 Sep, 2012 11 commits
  2. 24 Sep, 2012 7 commits
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile · 56d27adc
      Linus Torvalds authored
      Pull tile gxio ABI fix from Chris Metcalf:
       "This fixes a last-minute change in the Tilera hypervisor ABI for TRIO
        (PCI root complex) support.  We've locked in this ABI going forward
        and will make sure no further ABI changes like this occur."
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
        tile: gxio iorpc numbering change for TRIO interface
      56d27adc
    • Linus Torvalds's avatar
      Merge tag 'vfio-for-linus' of git://github.com/awilliam/linux-vfio · 1abbce4e
      Linus Torvalds authored
      Pull vfio fixes from Alex Williamson:
       "VFIO doc update and virqfd race fix"
      
      * tag 'vfio-for-linus' of git://github.com/awilliam/linux-vfio:
        vfio: Fix virqfd release race
        vfio: Trivial Documentation correction
      1abbce4e
    • Linus Torvalds's avatar
      Merge tag 'stable/for-linus-3.6-rc7-tag' of... · 0c59f236
      Linus Torvalds authored
      Merge tag 'stable/for-linus-3.6-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
      
      Pull a Xen fix from Konrad Rzeszutek Wilk:
       "It is a bug-fix when we run the initial PV guest on a AMD K8 machine
        and have CONFIG_AMD_NUMA enabled and detect the NUMA topology from the
        Northbridge.
      
        We end up in the situation where the initial domain gets too much
        information and gets confused and crashes - the fix is to restrict the
        domain to get the information - and we do it by just disabling NUMA on
        the PV guest (the hypervisor is still able to do its proper NUMA
        allocations of guests).
      
        It is OK to disable the PV guest from accessing NUMA data as right now
        we do not inject any NUMA node information to the PV guests.  When we
        do get to that point, then this patch will have to be reverted."
      
       * Disable PV NUMA support as we do not do anything with it (yet) and it
         can cause bootup crashes on certain AMD machines.
      
      * tag 'stable/for-linus-3.6-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
        xen/boot: Disable NUMA for PV guests.
      0c59f236
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client · bee2d97b
      Linus Torvalds authored
      Pull two ceph fixes from Sage Weil:
       "The first fixes a leak in the rbd setup error path, and the second
        fixes a more serious problem with mismatched kmap/kunmap that surfaced
        after the recent refactoring work."
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
        libceph: only kunmap kmapped pages
        rbd: drop dev reference on error in rbd_open()
      bee2d97b
    • Chris Metcalf's avatar
      tile: gxio iorpc numbering change for TRIO interface · e70cf540
      Chris Metcalf authored
      An ABI numbering change was made in the hypervisor for Tilera's 4.1
      MDE release (just shipped).  It's incompatible with the previous 4.0
      release ABI numbering, so we track the new numbering going forward.
      We plan to avoid modifying ABI numbering for these interfaces again.
      Signed-off-by: default avatarChris Metcalf <cmetcalf@tilera.com>
      e70cf540
    • Konrad Rzeszutek Wilk's avatar
      xen/boot: Disable NUMA for PV guests. · 8d54db79
      Konrad Rzeszutek Wilk authored
      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: default avatarAndre Przywara <andre.przywara@amd.com>
      Acked-by: default avatarAndre Przywara <andre.przywara@amd.com>
      Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      8d54db79
    • Linus Torvalds's avatar
      Linux 3.6-rc7 · 979570e0
      Linus Torvalds authored
      979570e0
  3. 23 Sep, 2012 8 commits
    • Linus Torvalds's avatar
      Merge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild · 56bae802
      Linus Torvalds authored
      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
    • Linus Torvalds's avatar
      Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging · 0737c8d7
      Linus Torvalds authored
      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
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 0bf7a705
      Linus Torvalds authored
      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
    • Shaun Ruffell's avatar
      edac_mc: edac_mc_free() cannot assume mem_ctl_info is registered in sysfs. · faa2ad09
      Shaun Ruffell authored
      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: default avatarShaun Ruffell <sruffell@digium.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      faa2ad09
    • Fengguang Wu's avatar
      edac_mc: fix messy kfree calls in the error path · ef6e7816
      Fengguang Wu authored
      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: default avatarFengguang Wu <fengguang.wu@intel.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      ef6e7816
    • Andreas Herrmann's avatar
      hwmon: (fam15h_power) Tweak runavg_range on resume · 5f0ecb90
      Andreas Herrmann authored
      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: default avatarAndreas Herrmann <andreas.herrmann3@amd.com>
      Tested-by: default avatarAndreas Hartmann <andihartmann@01019freenet.de>
      Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
      Cc: stable@vger.kernel.org # 3.0+
      5f0ecb90
    • Silas Boyd-Wickizer's avatar
      hwmon: (coretemp) Use get_online_cpus to avoid races involving CPU hotplug · 641f1456
      Silas Boyd-Wickizer authored
      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: default avatarSilas Boyd-Wickizer <sbw@mit.edu>
      Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
      641f1456
    • Silas Boyd-Wickizer's avatar
      hwmon: (via-cputemp) Use get_online_cpus to avoid races involving CPU hotplug · 1ec3ddfd
      Silas Boyd-Wickizer authored
      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: default avatarSilas Boyd-Wickizer <sbw@mit.edu>
      Acked-by: default avatarHarald Welte <laforge@gnumonks.org>
      Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
      1ec3ddfd
  4. 22 Sep, 2012 8 commits
  5. 21 Sep, 2012 6 commits
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · abef3bd7
      Linus Torvalds authored
      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
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc · 6219844e
      Linus Torvalds authored
      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
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 9d108907
      Linus Torvalds authored
      Pull x86 fixes from Ingo Molnar:
       "Small fixlets"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/mm/init.c: Fix devmem_is_allowed() off by one
        x86/kconfig: Remove outdated reference to Intel CPUs in CONFIG_SWIOTLB
      9d108907
    • Linus Torvalds's avatar
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 519b3b74
      Linus Torvalds authored
      Pull timer fix from Ingo Molnar:
       "One more timekeeping fix for v3.6"
      
      * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        time: Fix timeekeping_get_ns overflow on 32bit systems
      519b3b74
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 18f5600b
      Linus Torvalds authored
      Pull perf fixes from Ingo Molnar:
       "Small perf fixlets"
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        tracing: Don't call page_to_pfn() if page is NULL
        perf/x86: Fix Intel Ivy Bridge support
        perf/x86/ibs: Check syscall attribute flags
        perf/x86: Export Sandy Bridge uncore clockticks event in sysfs
      18f5600b
    • Linus Torvalds's avatar
      Merge tag 'for-linus-v3.6-rc7' of git://oss.sgi.com/xfs/xfs · 789f95b7
      Linus Torvalds authored
      Pull xfs bugfixes from Ben Myers:
       - fix a regression related to xfs_sync_worker racing with unmount.
       - fix a race while discarding xfs buffers.
      
      * tag 'for-linus-v3.6-rc7' of git://oss.sgi.com/xfs/xfs:
        xfs: stop the sync worker before xfs_unmountfs
        xfs: fix race while discarding buffers [V4]
      789f95b7