1. 01 Jun, 2017 4 commits
  2. 31 May, 2017 1 commit
  3. 29 May, 2017 5 commits
  4. 28 May, 2017 1 commit
  5. 27 May, 2017 24 commits
    • Jordan Crouse's avatar
      drm/msm: Fix the check for the command size · d72fea53
      Jordan Crouse authored
      
      
      The overrun check for the size of submitted commands is off by one.
      It should allow the offset plus the size to be equal to the
      size of the memory object when the command stream is very tightly
      constructed.
      
      Signed-off-by: default avatarJordan Crouse <jcrouse@codeaurora.org>
      Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
      d72fea53
    • Jordan Crouse's avatar
      drm/msm: Take the mutex before calling msm_gem_new_impl · 90dd57de
      Jordan Crouse authored
      
      
      Amongst its other duties, msm_gem_new_impl adds the newly created
      GEM object to the shared inactive list which may also be actively
      modifiying the list during submission.  All the paths to modify
      the list are protected by the mutex except for the one through
      msm_gem_import which can end up causing list corruption.
      
      Signed-off-by: default avatarJordan Crouse <jcrouse@codeaurora.org>
      [add extra WARN_ON(!mutex_is_locked(&dev->struct_mutex))]
      Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
      90dd57de
    • Philipp Zabel's avatar
      drm/msm: for array in-fences, check if all backing fences are from our own context before waiting · 3cfac69c
      Philipp Zabel authored
      
      
      Use the dma_fence_match_context helper to check if all backing fences
      are from our own context, in which case we don't have to wait.
      
      Signed-off-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
      Cc: Rob Clark <robdclark@gmail.com>
      Cc: Gustavo Padovan <gustavo.padovan@collabora.com>
      [rebased on code-motion]
      Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
      3cfac69c
    • Tobias Klauser's avatar
      drm/msm: constify irq_domain_ops · c43dd227
      Tobias Klauser authored
      
      
      struct irq_domain_ops is not modified, so it can be made const.
      
      Signed-off-by: default avatarTobias Klauser <tklauser@distanz.ch>
      Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
      c43dd227
    • Rob Clark's avatar
      drm/msm/mdp5: release hwpipe(s) for unused planes · adcbae31
      Rob Clark authored
      
      
      Otherwise, if userspace doesn't re-use a given plane, it's hwpipe(s)
      could stay permanently assigned.
      
      Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
      adcbae31
    • Eric Anholt's avatar
      drm/msm: Reuse dma_fence_release. · 3c30cc41
      Eric Anholt authored
      
      
      If we follow the typical pattern of the base class being the first
      member, we can use the default dma_fence_free function.
      
      Signed-off-by: default avatarEric Anholt <eric@anholt.net>
      Cc: Rob Clark <robdclark@gmail.com>
      Cc: linux-arm-msm@vger.kernel.org
      Cc: freedreno@lists.freedesktop.org
      Reviewed-by: default avatarRob Clark <robdclark@gmail.com>
      Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
      3c30cc41
    • Eric Anholt's avatar
      drm/msm: Expose our reservation object when exporting a dmabuf. · 43523eba
      Eric Anholt authored
      
      
      Without this, polling on the dma-buf (and presumably other devices
      synchronizing against our rendering) would return immediately, even
      while the BO was busy.
      
      Signed-off-by: default avatarEric Anholt <eric@anholt.net>
      Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
      Cc: stable@vger.kernel.org
      Cc: Rob Clark <robdclark@gmail.com>
      Cc: linux-arm-msm@vger.kernel.org
      Cc: freedreno@lists.freedesktop.org
      Reviewed-by: default avatarRob Clark <robdclark@gmail.com>
      Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
      43523eba
    • Rob Clark's avatar
      drm/msm/gpu: check legacy clk names in get_clocks() · 134ccada
      Rob Clark authored
      Otherwise if someone was using old bindings with "core_clk" instead of
      "core" as the clock name, we'd never find it and gpu would be stuck at
      27MHz (or whatever it's slowest rate is).
      
      Fixes: 98db803f
      
       ("msm/drm: gpu: Dynamically locate the clocks from the device tree")
      Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
      134ccada
    • Rob Clark's avatar
      drm/msm/mdp5: use __drm_atomic_helper_plane_duplicate_state() · 786813c3
      Rob Clark authored
      Somehow the helper was never retrofitted for mdp5.  Which meant when
      plane_state->fence was added, it could get copied into new state in
      mdp5_plane_duplicate_state().
      
      If an update to disable the plane (for example on rmfb) managed to sneak
      in after an nonblock update had swapped state, but before it was
      committed, we'd get a splat:
      
          WARNING: CPU: 1 PID: 69 at ../drivers/gpu/drm/drm_atomic_helper.c:1061 drm_atomic_helper_wait_for_fences+0xe0/0xf8
         Modules linked in:
      
         CPU: 1 PID: 69 Comm: kworker/1:1 Tainted: G        W       4.11.0-rc8+ #1187
         Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT)
         Workqueue: events drm_mode_rmfb_work_fn
         task: ffffffc036560d00 task.stack: ffffffc036550000
         PC is at drm_atomic_helper_wait_for_fences+0xe0/0xf8
         LR is at complete_commit.isra.1+0x44/0x1c0
         pc : [<ffffff80084f6040>] lr : [<ffffff800854176c>] pstate: 20000145
         sp : ffffffc036553b60
         x29: ffffffc036553b60 x28: ffffffc0264e6a00
         x27: ffffffc035659000 x26: 0000000000000000
         x25: ffffffc0240e8000 x24: 0000000000000038
         x23: 0000000000000000 x22: ffffff800858f200
         x21: ffffffc0240e8000 x20: ffffffc02f56a800
         x19: 0000000000000000 x18: 0000000000000000
         x17: 0000000000000000 x16: 0000000000000000
         x15: 0000000000000000 x14: ffffffc00a192700
         x13: 0000000000000004 x12: 0000000000000000
         x11: ffffff80089a1690 x10: 00000000000008f0
         x9 : ffffffc036553b20 x8 : ffffffc036561650
         x7 : ffffffc03fe6cb40 x6 : 0000000000000000
         x5 : 0000000000000001 x4 : 0000000000000002
         x3 : ffffffc035659000 x2 : ffffffc0240e8c80
         x1 : 0000000000000000 x0 : ffffffc02adbe588
      
         ---[ end trace 13aeec77c3fb55e2 ]---
         Call trace:
         Exception stack(0xffffffc036553990 to 0xffffffc036553ac0)
         3980:                                   0000000000000000 0000008000000000
         39a0: ffffffc036553b60 ffffff80084f6040 0000000000004ff0 0000000000000038
         39c0: ffffffc0365539d0 ffffff800857e098 ffffffc036553a00 ffffff800857e1b0
         39e0: ffffffc036553a10 ffffff800857c554 ffffffc0365e8400 ffffffc0365e8400
         3a00: ffffffc036553a20 ffffff8008103358 000000000001aad7 ffffff800851b72c
         3a20: ffffffc036553a50 ffffff80080e9228 ffffffc02adbe588 0000000000000000
         3a40: ffffffc0240e8c80 ffffffc035659000 0000000000000002 0000000000000001
         3a60: 0000000000000000 ffffffc03fe6cb40 ffffffc036561650 ffffffc036553b20
         3a80: 00000000000008f0 ffffff80089a1690 0000000000000000 0000000000000004
         3aa0: ffffffc00a192700 0000000000000000 0000000000000000 0000000000000000
         [<ffffff80084f6040>] drm_atomic_helper_wait_for_fences+0xe0/0xf8
         [<ffffff800854176c>] complete_commit.isra.1+0x44/0x1c0
         [<ffffff8008541c64>] msm_atomic_commit+0x32c/0x350
         [<ffffff8008516230>] drm_atomic_commit+0x50/0x60
         [<ffffff8008517548>] drm_atomic_remove_fb+0x158/0x250
         [<ffffff80085186d0>] drm_framebuffer_remove+0x50/0x158
         [<ffffff8008518818>] drm_mode_rmfb_work_fn+0x40/0x58
         [<ffffff80080d5668>] process_one_work+0x1d0/0x378
         [<ffffff80080d5a54>] worker_thread+0x244/0x488
         [<ffffff80080db7fc>] kthread+0xfc/0x128
         [<ffffff8008082ec0>] ret_from_fork+0x10/0x50
      
      Fixes: 96260142
      
       ("drm/fence: add in-fences support")
      Cc: stable@vger.kernel.org
      Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
      Reported-by: default avatarStanimir Varbanov <stanimir.varbanov@linaro.org>
      Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
      786813c3
    • Rob Clark's avatar
      drm/msm: select PM_OPP · ac20fa0a
      Rob Clark authored
      Otherwise, if nothing else enabled selects it, dev_pm_opp_of_add_table()
      will return -ENOTSUPP.
      
      Fixes: e2af8b6b
      
       ("drm/msm: gpu: Use OPP tables if we can")
      Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
      ac20fa0a
    • Linus Torvalds's avatar
      Merge tag 'tty-4.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · 249f1efd
      Linus Torvalds authored
      Pull tty/serial fixes from Greg KH:
       "Here are some serial and tty fixes for 4.12-rc3. They are a bit bigger
        than normal, which is why I had them bake in linux-next for a few
        weeks and didn't send them to you for -rc2.
      
        They revert a few of the serdev patches from 4.12-rc1, and bring
        things back to how they were in 4.11, to try to make things a bit more
        stable there. Rob and Johan both agree that this is the way forward,
        so this isn't people squabbling over semantics. Other than that, just
        a few minor serial driver fixes that people have had problems with.
      
        All of these have been in linux-next for a few weeks with no reported
        issues"
      
      * tag 'tty-4.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
        serial: altera_uart: call iounmap() at driver remove
        serial: imx: ensure UCR3 and UFCR are setup correctly
        MAINTAINERS/serial: Change maintainer of jsm driver
        serial: enable serdev support
        tty/serdev: add serdev registration interface
        serdev: Restore serdev_device_write_buf for atomic context
        serial: core: fix crash in uart_suspend_port
        tty: fix port buffer locking
        tty: ehv_bytechan: clean up init error handling
        serial: ifx6x60: fix use-after-free on module unload
        serial: altera_jtaguart: adding iounmap()
        serial: exar: Fix stuck MSIs
        serial: efm32: Fix parity management in 'efm32_uart_console_get_options()'
        serdev: fix tty-port client deregistration
        Revert "tty_port: register tty ports with serdev bus"
        drivers/tty: 8250: only call fintek_8250_probe when doing port I/O
      249f1efd
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 6f68a6ae
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
       "Fix running SPU programs on Cell, and a few other minor fixes.
      
        Thanks to Alistair Popple, Jeremy Kerr, Michael Neuling, Nicholas
        Piggin"
      
      * tag 'powerpc-4.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc: Add PPC_FEATURE userspace bits for SCV and DARN instructions
        powerpc/spufs: Fix hash faults for kernel regions
        powerpc: Fix booting P9 hash with CONFIG_PPC_RADIX_MMU=N
        powerpc/powernv/npu-dma.c: Fix opal_npu_destroy_context() call
        selftests/powerpc: Fix TM resched DSCR test with some compilers
      6f68a6ae
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 38e6bf23
      Linus Torvalds authored
      Pull x86 fixes from Thomas Gleixner:
       "A series of fixes for X86:
      
         - The final fix for the end-of-stack issue in the unwinder
         - Handle non PAT systems gracefully
         - Prevent access to uninitiliazed memory
         - Move early delay calaibration after basic init
         - Fix Kconfig help text
         - Fix a cross compile issue
         - Unbreak older make versions"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/timers: Move simple_udelay_calibration past init_hypervisor_platform
        x86/alternatives: Prevent uninitialized stack byte read in apply_alternatives()
        x86/PAT: Fix Xorg regression on CPUs that don't support PAT
        x86/watchdog: Fix Kconfig help text file path reference to lockup watchdog documentation
        x86/build: Permit building with old make versions
        x86/unwind: Add end-of-stack check for ftrace handlers
        Revert "x86/entry: Fix the end of the stack for newly forked tasks"
        x86/boot: Use CROSS_COMPILE prefix for readelf
      38e6bf23
    • Linus Torvalds's avatar
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 39b8ab31
      Linus Torvalds authored
      Pull timer fixlet from Thomas Gleixner:
       "Silence dmesg spam by making the posix cpu timer printks depend on
        print_fatal_signals"
      
      * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        posix-timers: Make signal printks conditional
      39b8ab31
    • Linus Torvalds's avatar
      Merge branch 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · de0b9d75
      Linus Torvalds authored
      Pull RAS fixes from Thomas Gleixner:
       "Two fixlets for RAS:
      
         - Export memory_error() so the NFIT module can utilize it
      
         - Handle memory errors in NFIT correctly"
      
      * 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        acpi, nfit: Fix the memory error check in nfit_handle_mce()
        x86/MCE: Export memory_error()
      de0b9d75
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · fac3fcae
      Linus Torvalds authored
      Pull perf tooling fixes from Thomas Gleixner:
      
       - Synchronization of tools and kernel headers
      
       - A series of fixes for perf report addressing various failures:
          * Handle invalid maps proper
          * Plug a memory leak
          * Handle frames and callchain order correctly
      
       - Fixes for handling inlines and children mode
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        tools/include: Sync kernel ABI headers with tooling headers
        perf tools: Put caller above callee in --children mode
        perf report: Do not drop last inlined frame
        perf report: Always honor callchain order for inlined nodes
        perf script: Add --inline option for debugging
        perf report: Fix off-by-one for non-activation frames
        perf report: Fix memory leak in addr2line when called by addr2inlines
        perf report: Don't crash on invalid maps in `-g srcline` mode
      fac3fcae
    • Linus Torvalds's avatar
      Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 805f2869
      Linus Torvalds authored
      Pull locking fix from Thomas Gleixner:
       "A fix for a state leak which was introduced in the recent rework of
        futex/rtmutex interaction"
      
      * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        futex,rt_mutex: Fix rt_mutex_cleanup_proxy_lock()
      805f2869
    • Linus Torvalds's avatar
      Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · d024baa5
      Linus Torvalds authored
      Pull kthread fix from Thomas Gleixner:
       "A single fix which prevents a use after free when kthread fork fails"
      
      * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        kthread: Fix use-after-free if kthread fork fails
      d024baa5
    • Linus Torvalds's avatar
      Merge tag 'trace-v4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace · 77d64656
      Linus Torvalds authored
      Pull ftrace fixes from Steven Rostedt:
       "There's been a few memory issues found with ftrace.
      
        One was simply a memory leak where not all was being freed that should
        have been in releasing a file pointer on set_graph_function.
      
        Then Thomas found that the ftrace trampolines were marked for
        read/write as well as execute. To shrink the possible attack surface,
        he added calls to set them to ro. Which also uncovered some other
        issues with freeing module allocated memory that had its permissions
        changed.
      
        Kprobes had a similar issue which is fixed and a selftest was added to
        trigger that issue again"
      
      * tag 'trace-v4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
        x86/ftrace: Make sure that ftrace trampolines are not RWX
        x86/mm/ftrace: Do not bug in early boot on irqs_disabled in cpu_flush_range()
        selftests/ftrace: Add a testcase for many kprobe events
        kprobes/x86: Fix to set RWX bits correctly before releasing trampoline
        ftrace: Fix memory leak in ftrace_graph_release()
      77d64656
    • Thomas Gleixner's avatar
      x86/ftrace: Make sure that ftrace trampolines are not RWX · 6ee98ffe
      Thomas Gleixner authored
      ftrace use module_alloc() to allocate trampoline pages. The mapping of
      module_alloc() is RWX, which makes sense as the memory is written to right
      after allocation. But nothing makes these pages RO after writing to them.
      
      Add proper set_memory_rw/ro() calls to protect the trampolines after
      modification.
      
      Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1705251056410.1862@nanos
      
      
      
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
      6ee98ffe
    • Steven Rostedt (VMware)'s avatar
      x86/mm/ftrace: Do not bug in early boot on irqs_disabled in cpu_flush_range() · a53276e2
      Steven Rostedt (VMware) authored
      With function tracing starting in early bootup and having its trampoline
      pages being read only, a bug triggered with the following:
      
      kernel BUG at arch/x86/mm/pageattr.c:189!
      invalid opcode: 0000 [#1] SMP
      Modules linked in:
      CPU: 0 PID: 0 Comm: swapper Not tainted 4.12.0-rc2-test+ #3
      Hardware name: MSI MS-7823/CSM-H87M-G43 (MS-7823), BIOS V1.6 02/22/2014
      task: ffffffffb4222500 task.stack: ffffffffb4200000
      RIP: 0010:change_page_attr_set_clr+0x269/0x302
      RSP: 0000:ffffffffb4203c88 EFLAGS: 00010046
      RAX: 0000000000000046 RBX: 0000000000000000 RCX: 00000001b6000000
      RDX: ffffffffb4203d40 RSI: 0000000000000000 RDI: ffffffffb4240d60
      RBP: ffffffffb4203d18 R08: 00000001b6000000 R09: 0000000000000001
      R10: ffffffffb4203aa8 R11: 0000000000000003 R12: ffffffffc029b000
      R13: ffffffffb4203d40 R14: 0000000000000001 R15: 0000000000000000
      FS:  0000000000000000(0000) GS:ffff9a639ea00000(0000) knlGS:0000000000000000
      CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      CR2: ffff9a636b384000 CR3: 00000001ea21d000 CR4: 00000000000406b0
      Call Trace:
       change_page_attr_clear+0x1f/0x21
       set_memory_ro+0x1e/0x20
       arch_ftrace_update_trampoline+0x207/0x21c
       ? ftrace_caller+0x64/0x64
       ? 0xffffffffc029b000
       ftrace_startup+0xf4/0x198
       register_ftrace_function+0x26/0x3c
       function_trace_init+0x5e/0x73
       tracer_init+0x1e/0x23
       tracing_set_tracer+0x127/0x15a
       register_tracer+0x19b/0x1bc
       init_function_trace+0x90/0x92
       early_trace_init+0x236/0x2b3
       start_kernel+0x200/0x3f5
       x86_64_start_reservations+0x29/0x2b
       x86_64_start_kernel+0x17c/0x18f
       secondary_startup_64+0x9f/0x9f
       ? secondary_startup_64+0x9f/0x9f
      
      Interrupts should not be enabled at this early in the boot process. It is
      also fine to leave interrupts enabled during this time as there's only one
      CPU running, and on_each_cpu() means to only run on the current CPU.
      
      If early_boot_irqs_disabled is set, it is safe to run cpu_flush_range() with
      interrupts disabled. Don't trigger a BUG_ON() in that case.
      
      Link: http://lkml.kernel.org/r/20170526093717.0be3b849@gandalf.local.home
      
      
      Suggested-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
      a53276e2
    • Masami Hiramatsu's avatar
      selftests/ftrace: Add a testcase for many kprobe events · bdd7e3d6
      Masami Hiramatsu authored
      Add a testcase to test kprobes via ftrace interface
      with many concurrent kprobe events.
      
      This tries to add many kprobe events (up to 256) on
      kernel functions. To avoid making ftrace-based
      kprobes (kprobes on fentry), it skips first N bytes
      (on x86 N=5, on ppc or arm N=4) of function entry.
      After that, it enables all those events, disable it,
      and remove it.
      
      Since the unoptimization buffer reclaiming will
      be delayed, after removing events, it will wait
      enough time.
      
      Link: http://lkml.kernel.org/r/149577388470.11702.11832460851769204511.stgit@devbox
      
      
      
      Signed-off-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
      Suggested-by: default avatarSteven Rostedt <rostedt@goodmis.org>
      Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
      bdd7e3d6
    • Masami Hiramatsu's avatar
      kprobes/x86: Fix to set RWX bits correctly before releasing trampoline · c93f5cf5
      Masami Hiramatsu authored
      Fix kprobes to set(recover) RWX bits correctly on trampoline
      buffer before releasing it. Releasing readonly page to
      module_memfree() crash the kernel.
      
      Without this fix, if kprobes user register a bunch of kprobes
      in function body (since kprobes on function entry usually
      use ftrace) and unregister it, kernel hits a BUG and crash.
      
      Link: http://lkml.kernel.org/r/149570868652.3518.14120169373590420503.stgit@devbox
      
      
      
      Signed-off-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
      Fixes: d0381c81
      
       ("kprobes/x86: Set kprobes pages read-only")
      Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
      c93f5cf5
    • Luis Henriques's avatar
      ftrace: Fix memory leak in ftrace_graph_release() · f9797c2f
      Luis Henriques authored
      ftrace_hash is being kfree'ed in ftrace_graph_release(), however the
      ->buckets field is not.  This results in a memory leak that is easily
      captured by kmemleak:
      
      unreferenced object 0xffff880038afe000 (size 8192):
        comm "trace-cmd", pid 238, jiffies 4294916898 (age 9.736s)
        hex dump (first 32 bytes):
          00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
          00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
        backtrace:
          [<ffffffff815f561e>] kmemleak_alloc+0x4e/0xb0
          [<ffffffff8113964d>] __kmalloc+0x12d/0x1a0
          [<ffffffff810bf6d1>] alloc_ftrace_hash+0x51/0x80
          [<ffffffff810c0523>] __ftrace_graph_open.isra.39.constprop.46+0xa3/0x100
          [<ffffffff810c05e8>] ftrace_graph_open+0x68/0xa0
          [<ffffffff8114003d>] do_dentry_open.isra.1+0x1bd/0x2d0
          [<ffffffff81140df7>] vfs_open+0x47/0x60
          [<ffffffff81150f95>] path_openat+0x2a5/0x1020
          [<ffffffff81152d6a>] do_filp_open+0x8a/0xf0
          [<ffffffff811411df>] do_sys_open+0x12f/0x200
          [<ffffffff811412ce>] SyS_open+0x1e/0x20
          [<ffffffff815fa6e0>] entry_SYSCALL_64_fastpath+0x13/0x94
          [<ffffffffffffffff>] 0xffffffffffffffff
      
      Link: http://lkml.kernel.org/r/20170525152038.7661-1-lhenriques@suse.com
      
      Cc: stable@vger.kernel.org
      Fixes: b9b0c831
      
       ("ftrace: Convert graph filter to use hash tables")
      Signed-off-by: default avatarLuis Henriques <lhenriques@suse.com>
      Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
      f9797c2f
  6. 26 May, 2017 5 commits
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · c86daad2
      Linus Torvalds authored
      Pull input layer fixes from Dmitry Torokhov:
       "Just a few fixups to a couple of drivers"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
        Input: elan_i2c - ignore signals when finishing updating firmware
        Input: elan_i2c - clear INT before resetting controller
        Input: atmel_mxt_ts - add T100 as a readable object
        Input: edt-ft5x06 - increase allowed data range for threshold parameter
      c86daad2
    • Linus Torvalds's avatar
      Merge tag 'led_fixes_for_4-12-rc3' of... · e2a9aa5a
      Linus Torvalds authored
      Merge tag 'led_fixes_for_4-12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
      
      Pull LED fix from Jacek Anaszewski:
       "A single LED fix for 4.12-rc3.
      
        leds-pca955x driver uses only i2c_smbus API and thus it should pass
        I2C_FUNC_SMBUS_BYTE_DATA flag to i2c_check_functionality"
      
      * tag 'led_fixes_for_4-12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
        leds: pca955x: Correct I2C Functionality
      e2a9aa5a
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 6741d516
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Fix state pruning in bpf verifier wrt. alignment, from Daniel
          Borkmann.
      
       2) Handle non-linear SKBs properly in SCTP ICMP parsing, from Davide
          Caratti.
      
       3) Fix bit field definitions for rss_hash_type of descriptors in mlx5
          driver, from Jesper Brouer.
      
       4) Defer slave->link updates until bonding is ready to do a full commit
          to the new settings, from Nithin Sujir.
      
       5) Properly reference count ipv4 FIB metrics to avoid use after free
          situations, from Eric Dumazet and several others including Cong Wang
          and Julian Anastasov.
      
       6) Fix races in llc_ui_bind(), from Lin Zhang.
      
       7) Fix regression of ESP UDP encapsulation for TCP packets, from
          Steffen Klassert.
      
       8) Fix mdio-octeon driver Kconfig deps, from Randy Dunlap.
      
       9) Fix regression in setting DSCP on ipv6/GRE encapsulation, from Peter
          Dawson.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits)
        ipv4: add reference counting to metrics
        net: ethernet: ax88796: don't call free_irq without request_irq first
        ip6_tunnel, ip6_gre: fix setting of DSCP on encapsulated packets
        sctp: fix ICMP processing if skb is non-linear
        net: llc: add lock_sock in llc_ui_bind to avoid a race condition
        bonding: Don't update slave->link until ready to commit
        test_bpf: Add a couple of tests for BPF_JSGE.
        bpf: add various verifier test cases
        bpf: fix wrong exposure of map_flags into fdinfo for lpm
        bpf: add bpf_clone_redirect to bpf_helper_changes_pkt_data
        bpf: properly reset caller saved regs after helper call and ld_abs/ind
        bpf: fix incorrect pruning decision when alignment must be tracked
        arp: fixed -Wuninitialized compiler warning
        tcp: avoid fastopen API to be used on AF_UNSPEC
        net: move somaxconn init from sysctl code
        net: fix potential null pointer dereference
        geneve: fix fill_info when using collect_metadata
        virtio-net: enable TSO/checksum offloads for Q-in-Q vlans
        be2net: Fix offload features for Q-in-Q packets
        vlan: Fix tcp checksum offloads in Q-in-Q vlans
        ...
      6741d516
    • Linus Torvalds's avatar
      Merge tag 'xfs-4.12-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux · cdbe0206
      Linus Torvalds authored
      Pull XFS fixes from Darrick Wong:
       "A few miscellaneous bug fixes & cleanups:
      
         - Fix indlen block reservation accounting bug when splitting delalloc
           extent
      
         - Fix warnings about unused variables that appeared in -rc1.
      
         - Don't spew errors when bmapping a local format directory
      
         - Fix an off-by-one error in a delalloc eof assertion
      
         - Make fsmap only return inode information for CAP_SYS_ADMIN
      
         - Fix a potential mount time deadlock recovering cow extents
      
         - Fix unaligned memory access in _btree_visit_blocks
      
         - Fix various SEEK_HOLE/SEEK_DATA bugs"
      
      * tag 'xfs-4.12-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
        xfs: Move handling of missing page into one place in xfs_find_get_desired_pgoff()
        xfs: Fix off-by-in in loop termination in xfs_find_get_desired_pgoff()
        xfs: Fix missed holes in SEEK_HOLE implementation
        xfs: fix off-by-one on max nr_pages in xfs_find_get_desired_pgoff()
        xfs: fix unaligned access in xfs_btree_visit_blocks
        xfs: avoid mount-time deadlock in CoW extent recovery
        xfs: only return detailed fsmap info if the caller has CAP_SYS_ADMIN
        xfs: bad assertion for delalloc an extent that start at i_size
        xfs: fix warnings about unused stack variables
        xfs: BMAPX shouldn't barf on inline-format directories
        xfs: fix indlen accounting error on partial delalloc conversion
      cdbe0206
    • Eric Dumazet's avatar
      ipv4: add reference counting to metrics · 3fb07daf
      Eric Dumazet authored
      Andrey Konovalov reported crashes in ipv4_mtu()
      
      I could reproduce the issue with KASAN kernels, between
      10.246.7.151 and 10.246.7.152 :
      
      1) 20 concurrent netperf -t TCP_RR -H 10.246.7.152 -l 1000 &
      
      2) At the same time run following loop :
      while :
      do
       ip ro add 10.246.7.152 dev eth0 src 10.246.7.151 mtu 1500
       ip ro del 10.246.7.152 dev eth0 src 10.246.7.151 mtu 1500
      done
      
      Cong Wang attempted to add back rt->fi in commit
      82486aa6 ("ipv4: restore rt->fi for reference counting")
      but this proved to add some issues that were complex to solve.
      
      Instead, I suggested to add a refcount to the metrics themselves,
      being a standalone object (in particular, no reference to other objects)
      
      I tried to make this patch as small as possible to ease its backport,
      instead of being super clean. Note that we believe that only ipv4 dst
      need to take care of the metric refcount. But if this is wrong,
      this patch adds the basic infrastructure to extend this to other
      families.
      
      Many thanks to Julian Anastasov for reviewing this patch, and Cong Wang
      for his efforts on this problem.
      
      Fixes: 2860583f
      
       ("ipv4: Kill rt->fi")
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Reported-by: default avatarAndrey Konovalov <andreyknvl@google.com>
      Reviewed-by: default avatarJulian Anastasov <ja@ssi.bg>
      Acked-by: default avatarCong Wang <xiyou.wangcong@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      3fb07daf