1. 05 Jan, 2011 10 commits
    • Jean Pihet's avatar
      perf: Add calls to suspend trace point · 938cfed1
      Jean Pihet authored
      
      
      Uses the machine_suspend trace point, called from the
      generic kernel suspend_devices_and_enter function.
      Signed-off-by: default avatarJean Pihet <j-pihet@ti.com>
      Acked-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
      Cc: Arjan van de Ven <arjan@linux.intel.com>
      CC: Thomas Renninger <trenn@suse.de>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: linux-pm@lists.linux-foundation.org
      LKML-Reference: <1294253342-29056-2-git-send-email-j-pihet@ti.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      938cfed1
    • Arnaldo Carvalho de Melo's avatar
      perf script: Make some lists static · eccdfe2d
      Arnaldo Carvalho de Melo authored
      
      
      Not accessed outside builtin-script, so make them static.
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      eccdfe2d
    • Arnaldo Carvalho de Melo's avatar
      perf script: Use the default lost event handler · 6d8afb56
      Arnaldo Carvalho de Melo authored
      
      
      That already does what was being done here. The warning is now unconditionally
      given by __perf_session__process_pipe_events, just like for non pipe processing.
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      6d8afb56
    • Arnaldo Carvalho de Melo's avatar
      perf session: Warn about errors when processing pipe events too · 11095994
      Arnaldo Carvalho de Melo authored
      
      
      Just like we do at __perf_session__process_events
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      11095994
    • Stephane Eranian's avatar
      perf tools: Fix perf_event.h header usage · d030260a
      Stephane Eranian authored
      
      
      This patch fixes the usage of the perf_event.h header file
      between command modules and the supporting code in util.
      
      It is necessary to ensure that ALL files use the SAME
      perf_event.h header from the kernel source tree.
      
      There were a couple of #include <linux/perf_event.h> mixed
      with #include "../../perf_event.h".
      
      This caused issues on some distros because of mismatch
      in the layout of struct perf_event_attr. That eventually
      led perf stat to segfault.
      
      Cc: David S. Miller <davem@davemloft.net>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Robert Richter <robert.richter@amd.com>
      Cc: Stephane Eranian <eranian@gmail.com>
      LKML-Reference: <4d233cf0.2308e30a.7b00.ffffc187@mx.google.com>
      Signed-off-by: default avatarStephane Eranian <eranian@google.com>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      d030260a
    • Arnaldo Carvalho de Melo's avatar
      perf test: Clarify some error reports in the open syscall test · 454a3bbe
      Arnaldo Carvalho de Melo authored
      
      
      Rebooted my devel machine, first thing I ran was perf test, that expects
      debugfs to be mounted, test fails. Be more clear about it.
      
      Also add missing newlines and add more informative message when
      sys_perf_event_open fails.
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      454a3bbe
    • Huang Ying's avatar
      x86, NMI: Add touch_nmi_watchdog to io_check_error delay · 74d91e3c
      Huang Ying authored
      
      
      Prevent the long delay in io_check_error making NMI watchdog
      timeout.
      Signed-off-by: default avatarHuang Ying <ying.huang@intel.com>
      Signed-off-by: default avatarDon Zickus <dzickus@redhat.com>
      LKML-Reference: <1294198689-15447-3-git-send-email-dzickus@redhat.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      74d91e3c
    • Dongdong Deng's avatar
      x86: Avoid calling arch_trigger_all_cpu_backtrace() at the same time · 554ec063
      Dongdong Deng authored
      
      
      The spin_lock_debug/rcu_cpu_stall detector uses
      trigger_all_cpu_backtrace() to dump cpu backtrace.
      Therefore it is possible that trigger_all_cpu_backtrace()
      could be called at the same time on different CPUs, which
      triggers and 'unknown reason NMI' warning. The following case
      illustrates the problem:
      
            CPU1                    CPU2                     ...   CPU N
                             trigger_all_cpu_backtrace()
                             set "backtrace_mask" to cpu mask
                                     |
      generate NMI interrupts  generate NMI interrupts       ...
          \                          |                               /
           \                         |                              /
      
      The "backtrace_mask" will be cleaned by the first NMI interrupt
      at nmi_watchdog_tick(), then the following NMI interrupts
      generated by other cpus's arch_trigger_all_cpu_backtrace() will
      be taken as unknown reason NMI interrupts.
      
      This patch uses a test_and_set to avoid the problem, and stop
      the arch_trigger_all_cpu_backtrace() from calling to avoid
      dumping a double cpu backtrace info when there is already a
      trigger_all_cpu_backtrace() in progress.
      Signed-off-by: default avatarDongdong Deng <dongdong.deng@windriver.com>
      Reviewed-by: default avatarBruce Ashfield <bruce.ashfield@windriver.com>
      Cc: fweisbec@gmail.com
      LKML-Reference: <1294198689-15447-2-git-send-email-dzickus@redhat.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      Signed-off-by: default avatarDon Zickus <dzickus@redhat.com>
      554ec063
    • Don Zickus's avatar
      x86: Only call smp_processor_id in non-preempt cases · 9ab181fa
      Don Zickus authored
      
      
      There are some paths that walk the die_chain with preemption on.
      Make sure we are in an NMI call before we start doing anything.
      
      This was triggered by do_general_protection calling notify_die
      with DIE_GPF.
      Reported-by: default avatarJan Kiszka <jan.kiszka@web.de>
      Signed-off-by: default avatarDon Zickus <dzickus@redhat.com>
      LKML-Reference: <1294198689-15447-1-git-send-email-dzickus@redhat.com>
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      9ab181fa
    • Ingo Molnar's avatar
      Merge commit 'v2.6.37' into perf/core · aef1b9ce
      Ingo Molnar authored
      
      
      Merge reason: Add the final .37 tree.
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      aef1b9ce
  2. 04 Jan, 2011 9 commits
  3. 03 Jan, 2011 21 commits
    • Arnaldo Carvalho de Melo's avatar
      perf test: Add test for counting open syscalls · d854861c
      Arnaldo Carvalho de Melo authored
      
      
      To test the use of the perf_evsel class on something other than
      the tools from where we refactored code to create it.
      
      It calls open() N times and then checks if the event created to
      monitor it returns N events.
      
      [acme@felicio linux]$ perf test
       1: vmlinux symtab matches kallsyms: Ok
       2: detect open syscall event: Ok
      [acme@felicio linux]$
      
      It does.
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Han Pingtian <phan@redhat.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      d854861c
    • Arnaldo Carvalho de Melo's avatar
      perf evsel: Auto allocate resources needed for some methods · 4eed11d5
      Arnaldo Carvalho de Melo authored
      
      
      While writing the first user of the routines created from the ad-hoc
      routines in the existing builtins I noticed that the resulting set of
      calls was too long, reduce it by doing some best effort allocations.
      
      Tools that need to operate on multiple threads and cpus should pre-allocate
      enough resources by explicitely calling the perf_evsel__alloc_{fd,counters}
      methods.
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      4eed11d5
    • Arnaldo Carvalho de Melo's avatar
      perf evsel: Use {cpu,thread}_map to shorten list of parameters · 86bd5e86
      Arnaldo Carvalho de Melo authored
      
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      86bd5e86
    • Arnaldo Carvalho de Melo's avatar
      perf tools: Refactor all_tids to hold nr and the map · 5c98d466
      Arnaldo Carvalho de Melo authored
      
      
      So that later, we can pass the thread_map instance instead of
      (thread_num, thread_map) for things like perf_evsel__open and friends,
      just like was done with cpu_map.
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      5c98d466
    • Arnaldo Carvalho de Melo's avatar
      perf tools: Refactor cpumap to hold nr and the map · 60d567e2
      Arnaldo Carvalho de Melo authored
      
      
      So that later, we can pass the cpu_map instance instead of (nr_cpus, cpu_map)
      for things like perf_evsel__open and friends.
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      60d567e2
    • Arnaldo Carvalho de Melo's avatar
      perf evsel: Introduce per cpu and per thread open helpers · 48290609
      Arnaldo Carvalho de Melo authored
      
      
      Abstracting away the loops needed to create the various event fd handlers.
      
      The users have to pass a confiruged perf->evsel.attr field, which is already
      usable after perf_evsel__new (constructor) time, using defaults.
      
      Comes out of the ad-hoc routines in builtin-stat, that now uses it.
      
      Fixed a small silly bug where we were die()ing before killing our
      children, dysfunctional family this one 8-)
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      48290609
    • Arnaldo Carvalho de Melo's avatar
      perf evsel: Steal the counter reading routines from stat · c52b12ed
      Arnaldo Carvalho de Melo authored
      
      
      Making them hopefully generic enough to be used in 'perf test',
      well see.
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      c52b12ed
    • Linus Torvalds's avatar
      Merge master.kernel.org:/home/rmk/linux-2.6-arm · 989d873f
      Linus Torvalds authored
      * master.kernel.org:/home/rmk/linux-2.6-arm:
        ARM: pxa: fix page table corruption on resume
        ARM: it8152: add IT8152_LAST_IRQ definition to fix build error
        ARM: pxa: PXA_ESERIES depends on FB_W100.
        ARM: 6605/1: Add missing include "asm/memory.h"
        ARM: 6540/1: Stop irqsoff trace on return to user
        ARM: 6537/1: update Nomadik, U300 and Ux500 maintainers
        ARM: 6536/1: Add missing SZ_{32,64,128}
        ARM: fix cache-feroceon-l2 after stack based kmap_atomic()
        ARM: fix cache-xsc3l2 after stack based kmap_atomic()
        ARM: get rid of kmap_high_l1_vipt()
        ARM: smp: avoid incrementing mm_users on CPU startup
        ARM: pxa: PXA_ESERIES depends on FB_W100.
      989d873f
    • Andrew Morton's avatar
      arch/mn10300/kernel/irq.c: fix build · d9a1abe4
      Andrew Morton authored
      Addresses https://bugzilla.kernel.org/show_bug.cgi?id=25702
      
      Reported-by: default avatarMartin Ettl <ettl.martin@gmx.de>
      Cc: David Howells <dhowells@redhat.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      d9a1abe4
    • Mimi Zohar's avatar
      ima: fix add LSM rule bug · 867c2026
      Mimi Zohar authored
      
      
      If security_filter_rule_init() doesn't return a rule, then not everything
      is as fine as the return code implies.
      
      This bug only occurs when the LSM (eg. SELinux) is disabled at runtime.
      
      Adding an empty LSM rule causes ima_match_rules() to always succeed,
      ignoring any remaining rules.
      
       default IMA TCB policy:
        # PROC_SUPER_MAGIC
        dont_measure fsmagic=0x9fa0
        # SYSFS_MAGIC
        dont_measure fsmagic=0x62656572
        # DEBUGFS_MAGIC
        dont_measure fsmagic=0x64626720
        # TMPFS_MAGIC
        dont_measure fsmagic=0x01021994
        # SECURITYFS_MAGIC
        dont_measure fsmagic=0x73636673
      
        < LSM specific rule >
        dont_measure obj_type=var_log_t
      
        measure func=BPRM_CHECK
        measure func=FILE_MMAP mask=MAY_EXEC
        measure func=FILE_CHECK mask=MAY_READ uid=0
      
      Thus without the patch, with the boot parameters 'tcb selinux=0', adding
      the above 'dont_measure obj_type=var_log_t' rule to the default IMA TCB
      measurement policy, would result in nothing being measured.  The patch
      prevents the default TCB policy from being replaced.
      Signed-off-by: default avatarMimi Zohar <zohar@us.ibm.com>
      Cc: James Morris <jmorris@namei.org>
      Acked-by: default avatarSerge Hallyn <serge.hallyn@canonical.com>
      Cc: David Safford <safford@watson.ibm.com>
      Cc: <stable@kernel.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      867c2026
    • Russell King's avatar
    • Florian Westphal's avatar
      bridge: stp: ensure mac header is set · e6f26129
      Florian Westphal authored
      commit bf9ae538
      (llc: use dev_hard_header) removed the
      skb_reset_mac_header call from llc_mac_hdr_init.
      
      This seems fine itself, but br_send_bpdu() invokes ebtables LOCAL_OUT.
      
      We oops in ebt_basic_match() because it assumes eth_hdr(skb) returns
      a meaningful result.
      
      Cc: acme@ghostprotocols.net
      References: https://bugzilla.kernel.org/show_bug.cgi?id=24532
      
      Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      e6f26129
    • Linus Torvalds's avatar
      Merge branch 'perf-fixes-for-linus' of... · 03ed6a3a
      Linus Torvalds authored
      Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
      
      * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
        perf: Fix callchain hit bad cast on ascii display
        arch/x86/oprofile/op_model_amd.c: Perform initialisation on a single CPU
        watchdog: Improve initialisation error message and documentation
      03ed6a3a
    • Linus Torvalds's avatar
      Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 · 4c37a4b5
      Linus Torvalds authored
      * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
        [media] em28xx: radio_fops should also use unlocked_ioctl
        [media] wm8775: Revert changeset fcb97573 to avoid a regression
        [media] cx25840: Prevent device probe failure due to volume control ERANGE error
      4c37a4b5
    • Linus Torvalds's avatar
      Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx · d45fa563
      Linus Torvalds authored
      * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
        dmaengine: provide dummy functions for DMA_ENGINE=n
        mv_xor: fix race in tasklet function
      d45fa563
    • Jan Beulich's avatar
      name_to_dev_t() must not call __init code · a1cf11d8
      Jan Beulich authored
      
      
      The function can't be __init itself (being called from some sysfs
      handler), and hence none of the functions it calls can be either.
      Signed-off-by: default avatarJan Beulich <jbeulich@novell.com>
      Acked-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      a1cf11d8
    • Tomas Winkler's avatar
      bridge: fix br_multicast_ipv6_rcv for paged skbs · 9d89081d
      Tomas Winkler authored
      use pskb_may_pull to access ipv6 header correctly for paged skbs
      It was omitted in the bridge code leading to crash in blind
      __skb_pull
      
      since the skb is cloned undonditionally we also simplify the
      the exit path
      
      this fixes bug https://bugzilla.kernel.org/show_bug.cgi?id=25202
      
      
      
      Dec 15 14:36:40 User-PC hostapd: wlan0: STA 00:15:00:60:5d:34 IEEE 802.11: authenticated
      Dec 15 14:36:40 User-PC hostapd: wlan0: STA 00:15:00:60:5d:34 IEEE 802.11: associated (aid 2)
      Dec 15 14:36:40 User-PC hostapd: wlan0: STA 00:15:00:60:5d:34 RADIUS: starting accounting session 4D0608A3-00000005
      Dec 15 14:36:41 User-PC kernel: [175576.120287] ------------[ cut here ]------------
      Dec 15 14:36:41 User-PC kernel: [175576.120452] kernel BUG at include/linux/skbuff.h:1178!
      Dec 15 14:36:41 User-PC kernel: [175576.120609] invalid opcode: 0000 [#1] SMP
      Dec 15 14:36:41 User-PC kernel: [175576.120749] last sysfs file: /sys/devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/uevent
      Dec 15 14:36:41 User-PC kernel: [175576.121035] Modules linked in: approvals binfmt_misc bridge stp llc parport_pc ppdev arc4 iwlagn snd_hda_codec_realtek iwlcore i915 snd_hda_intel mac80211 joydev snd_hda_codec snd_hwdep snd_pcm snd_seq_midi drm_kms_helper snd_rawmidi drm snd_seq_midi_event snd_seq snd_timer snd_seq_device cfg80211 eeepc_wmi usbhid psmouse intel_agp i2c_algo_bit intel_gtt uvcvideo agpgart videodev sparse_keymap snd shpchp v4l1_compat lp hid video serio_raw soundcore output snd_page_alloc ahci libahci atl1c
      Dec 15 14:36:41 User-PC kernel: [175576.122712]
      Dec 15 14:36:41 User-PC kernel: [175576.122769] Pid: 0, comm: kworker/0:0 Tainted: G        W   2.6.37-rc5-wl+ #3 1015PE/1016P
      Dec 15 14:36:41 User-PC kernel: [175576.123012] EIP: 0060:[<f83edd65>] EFLAGS: 00010283 CPU: 1
      Dec 15 14:36:41 User-PC kernel: [175576.123193] EIP is at br_multicast_rcv+0xc95/0xe1c [bridge]
      Dec 15 14:36:41 User-PC kernel: [175576.123362] EAX: 0000001c EBX: f5626318 ECX: 00000000 EDX: 00000000
      Dec 15 14:36:41 User-PC kernel: [175576.123550] ESI: ec512262 EDI: f5626180 EBP: f60b5ca0 ESP: f60b5bd8
      Dec 15 14:36:41 User-PC kernel: [175576.123737]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
      Dec 15 14:36:41 User-PC kernel: [175576.123902] Process kworker/0:0 (pid: 0, ti=f60b4000 task=f60a8000 task.ti=f60b0000)
      Dec 15 14:36:41 User-PC kernel: [175576.124137] Stack:
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  ec556500 f6d06800 f60b5be8 c01087d8 ec512262 00000030 00000024 f5626180
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  f572c200 ef463440 f5626300 3affffff f6d06dd0 e60766a4 000000c4 f6d06860
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  ffffffff ec55652c 00000001 f6d06844 f60b5c64 c0138264 c016e451 c013e47d
      Dec 15 14:36:41 User-PC kernel: [175576.124181] Call Trace:
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c01087d8>] ? sched_clock+0x8/0x10
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c0138264>] ? enqueue_entity+0x174/0x440
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c016e451>] ? sched_clock_cpu+0x131/0x190
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c013e47d>] ? select_task_rq_fair+0x2ad/0x730
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c0524fc1>] ? nf_iterate+0x71/0x90
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f83e4914>] ? br_handle_frame_finish+0x184/0x220 [bridge]
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f83e4790>] ? br_handle_frame_finish+0x0/0x220 [bridge]
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f83e46e9>] ? br_handle_frame+0x189/0x230 [bridge]
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f83e4790>] ? br_handle_frame_finish+0x0/0x220 [bridge]
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f83e4560>] ? br_handle_frame+0x0/0x230 [bridge]
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c04ff026>] ? __netif_receive_skb+0x1b6/0x5b0
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c04f7a30>] ? skb_copy_bits+0x110/0x210
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c0503a7f>] ? netif_receive_skb+0x6f/0x80
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f82cb74c>] ? ieee80211_deliver_skb+0x8c/0x1a0 [mac80211]
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f82cc836>] ? ieee80211_rx_handlers+0xeb6/0x1aa0 [mac80211]
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c04ff1f0>] ? __netif_receive_skb+0x380/0x5b0
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c016e242>] ? sched_clock_local+0xb2/0x190
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c012b688>] ? default_spin_lock_flags+0x8/0x10
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c05d83df>] ? _raw_spin_lock_irqsave+0x2f/0x50
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f82cd621>] ? ieee80211_prepare_and_rx_handle+0x201/0xa90 [mac80211]
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f82ce154>] ? ieee80211_rx+0x2a4/0x830 [mac80211]
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f815a8d6>] ? iwl_update_stats+0xa6/0x2a0 [iwlcore]
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f8499212>] ? iwlagn_rx_reply_rx+0x292/0x3b0 [iwlagn]
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c05d83df>] ? _raw_spin_lock_irqsave+0x2f/0x50
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f8483697>] ? iwl_rx_handle+0xe7/0x350 [iwlagn]
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f8486ab7>] ? iwl_irq_tasklet+0xf7/0x5c0 [iwlagn]
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c01aece1>] ? __rcu_process_callbacks+0x201/0x2d0
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c0150d05>] ? tasklet_action+0xc5/0x100
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c0150a07>] ? __do_softirq+0x97/0x1d0
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c05d910c>] ? nmi_stack_correct+0x2f/0x34
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c0150970>] ? __do_softirq+0x0/0x1d0
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  <IRQ>
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c01508f5>] ? irq_exit+0x65/0x70
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c05df062>] ? do_IRQ+0x52/0xc0
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c01036b0>] ? common_interrupt+0x30/0x38
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c03a1fc2>] ? intel_idle+0xc2/0x160
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c04daebb>] ? cpuidle_idle_call+0x6b/0x100
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c0101dea>] ? cpu_idle+0x8a/0xf0
      Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c05d2702>] ? start_secondary+0x1e8/0x1ee
      
      Cc: David Miller <davem@davemloft.net>
      Cc: Johannes Berg <johannes@sipsolutions.net>
      Cc: Stephen Hemminger <shemminger@vyatta.com>
      Signed-off-by: default avatarTomas Winkler <tomas.winkler@intel.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      9d89081d
    • J. K. Cliburn's avatar
      atl1: fix oops when changing tx/rx ring params · 2f32c867
      J. K. Cliburn authored
      Commit 3f5a2a71
      
       zeroes out the statistics
      message block (SMB) and coalescing message block (CMB) when adapter ring
      resources are freed.  This is desirable behavior, but, as a side effect,
      the commit leads to an oops when atl1_set_ringparam() attempts to alter
      the number of rx or tx elements in the ring buffer (by using ethtool
      -G, for example).  We don't want SMB or CMB to change during this
      operation.
      
      Modify atl1_set_ringparam() to preserve SMB and CMB when changing ring
      parameters.
      
      Cc: stable@kernel.org
      Signed-off-by: default avatarJay Cliburn <jcliburn@gmail.com>
      Reported-by: default avatarTõnu Raitviir <jussuf@linux.ee>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      2f32c867
    • Ingo Molnar's avatar
      Merge branch 'perf/urgent' of... · a0a2b71b
      Ingo Molnar authored
      Merge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/urgent
      a0a2b71b
    • Arnaldo Carvalho de Melo's avatar
      perf evsel: Delete the event selectors at exit · 70d544d0
      Arnaldo Carvalho de Melo authored
      
      
      Freeing all the possibly allocated resources, reducing complexity
      on each tool exit path.
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      70d544d0
    • Arnaldo Carvalho de Melo's avatar
      perf util: Move do_read from session to util · 1e7972cc
      Arnaldo Carvalho de Melo authored
      
      
      Not really something to be exported from session.c. Rename it to
      'readn' as others did in the past.
      
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Paul Mackerras <paulus@samba.org>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Tom Zanussi <tzanussi@gmail.com>
      LKML-Reference: <new-submission>
      Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
      1e7972cc