- 08 11月, 2011 5 次提交
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由 Steven Rostedt 提交于
If the set_ftrace_filter is cleared by writing just whitespace to it, then the filter hash refcounts will be decremented but not updated. This causes two bugs: 1) No functions will be enabled for tracing when they all should be 2) If the users clears the set_ftrace_filter twice, it will crash ftrace: ------------[ cut here ]------------ WARNING: at /home/rostedt/work/git/linux-trace.git/kernel/trace/ftrace.c:1384 __ftrace_hash_rec_update.part.27+0x157/0x1a7() Modules linked in: Pid: 2330, comm: bash Not tainted 3.1.0-test+ #32 Call Trace: [<ffffffff81051828>] warn_slowpath_common+0x83/0x9b [<ffffffff8105185a>] warn_slowpath_null+0x1a/0x1c [<ffffffff810ba362>] __ftrace_hash_rec_update.part.27+0x157/0x1a7 [<ffffffff810ba6e8>] ? ftrace_regex_release+0xa7/0x10f [<ffffffff8111bdfe>] ? kfree+0xe5/0x115 [<ffffffff810ba51e>] ftrace_hash_move+0x2e/0x151 [<ffffffff810ba6fb>] ftrace_regex_release+0xba/0x10f [<ffffffff8112e49a>] fput+0xfd/0x1c2 [<ffffffff8112b54c>] filp_close+0x6d/0x78 [<ffffffff8113a92d>] sys_dup3+0x197/0x1c1 [<ffffffff8113a9a6>] sys_dup2+0x4f/0x54 [<ffffffff8150cac2>] system_call_fastpath+0x16/0x1b ---[ end trace 77a3a7ee73794a02 ]--- Link: http://lkml.kernel.org/r/20111101141420.GA4918@debianReported-by: NRabin Vincent <rabin@rab.in> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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由 Steven Rostedt 提交于
A update is made to the sched:sched_switch event that adds some logic to the first parameter of the __print_flags() that shows the state of tasks. This change cause perf to fail parsing the flags. A simple fix is needed to have the parser be able to process ops within the argument. Cc: stable@vger.kernel.org Reported-by: NAndrew Vagin <avagin@openvz.org> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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由 Gleb Natapov 提交于
If cpu A calls jump_label_inc() just after atomic_add_return() is called by cpu B, atomic_inc_not_zero() will return value greater then zero and jump_label_inc() will return to a caller before jump_label_update() finishes its job on cpu B. Link: http://lkml.kernel.org/r/20111018175551.GH17571@redhat.com Cc: stable@vger.kernel.org Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: NJason Baron <jbaron@redhat.com> Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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由 Steven Rostedt 提交于
A forced undef of a config value was used for testing and was accidently left in during the final commit. This causes x86 to run slower than needed while running function tracing as well as causes the function graph selftest to fail when DYNMAIC_FTRACE is not set. This is because the code in MCOUNT expects the ftrace code to be processed with the config value set that happened to be forced not set. The forced config option was left in by: commit 6331c28c ftrace: Fix dynamic selftest failure on some archs Link: http://lkml.kernel.org/r/20111102150255.GA6973@debian Cc: stable@vger.kernel.org Reported-by: NRabin Vincent <rabin@rab.in> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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由 Steven Rostedt 提交于
The pretty print of the lockdep debug splat uses just the lock name to show how the locking scenario happens. But when it comes to nesting locks, the output becomes confusing which takes away the point of the pretty printing of the lock scenario. Without displaying the subclass info, we get the following output: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(slock-AF_INET); lock(slock-AF_INET); lock(slock-AF_INET); lock(slock-AF_INET); *** DEADLOCK *** The above looks more of a A->A locking bug than a A->B B->A. By adding the subclass to the output, we can see what really happened: other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(slock-AF_INET); lock(slock-AF_INET/1); lock(slock-AF_INET); lock(slock-AF_INET/1); *** DEADLOCK *** This bug was discovered while tracking down a real bug caught by lockdep. Link: http://lkml.kernel.org/r/20111025202049.GB25043@hostway.ca Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Reported-by: NThomas Gleixner <tglx@linutronix.de> Tested-by: NSimon Kirby <sim@hostway.ca> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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- 05 11月, 2011 2 次提交
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由 Li Zefan 提交于
Preds is no longer stored in a fixed-size stack. The max preds now is 2^14, and is way more than enough, so don't bother to document it. Link: http://lkml.kernel.org/r/4EAA5E54.1080102@cn.fujitsu.comSigned-off-by: NLi Zefan <lizf@cn.fujitsu.com> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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由 Steven Rostedt 提交于
The system filter can be used to set multiple event filters that exist within the system. But currently it displays the last filter written that does not necessarily correspond to the filters within the system. The system filter itself is not used to filter any events. The system filter is just a means to set filters of the events within it. Because this causes an ambiguous state when the system filter reads a filter string but the events within the system have different strings it is best to just show a boiler plate: ### global filter ### # Use this to set filters for multiple events. # Only events with the given fields will be affected. # If no events are modified, an error message will be displayed here. If an error occurs while writing to the system filter, the system filter will replace the boiler plate with the error message as it currently does. Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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- 03 11月, 2011 1 次提交
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由 Li Zefan 提交于
Though not all events have field 'prev_pid', it was allowed to do this: # echo 'prev_pid == 100' > events/sched/filter but commit 75b8e982 (tracing/filter: Swap entire filter of events) broke it without any reason. Link: http://lkml.kernel.org/r/4EAF46CF.8040408@cn.fujitsu.comSigned-off-by: NLi Zefan <lizf@cn.fujitsu.com> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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- 01 11月, 2011 1 次提交
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由 Ilya Dryomov 提交于
Fix a bug introduced by e9dbfae5, which prevents event_subsystem from ever being released. Ref_count was added to keep track of subsystem users, not for counting events. Subsystem is created with ref_count = 1, so there is no need to increment it for every event, we have nr_events for that. Fix this by touching ref_count only when we actually have a new user - subsystem_open(). Cc: stable@vger.kernel.org Signed-off-by: NIlya Dryomov <idryomov@gmail.com> Link: http://lkml.kernel.org/r/1320052062-7846-1-git-send-email-idryomov@gmail.comSigned-off-by: NSteven Rostedt <rostedt@goodmis.org>
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- 21 10月, 2011 3 次提交
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由 Ricardo Ribalda Delgado 提交于
Fglrx propietary driver has symbol names over 128 chars (:S). This breaks the function kallsyms__parse. This fix increases the size of KSYM_NAME_LEN, so kallsyms__parse can work on such kernels. The only counterparty, is that such function requires 128 more bytes to work. Acked-by: NPekka Enberg <penberg@kernel.org> Cc: Anton Blanchard <anton@samba.org> Cc: David Ahern <daahern@cisco.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1319096606-11568-1-git-send-email-ricardo.ribalda@gmail.comSigned-off-by: NRicardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
We don't allocate the histogram data structures for --sort lists without "sym", so, just like was done for the menu, don't try to annotate when 'a' is pressed, just warn the user about it. Reported-by: NDavid Ahern <dsahern@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-27mjg02s2mbw8lfxqv7jpzec@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
Just another step in stopping the use of libnewt in perf. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-uy6s534uqxq8tenh6s3k8ocj@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 20 10月, 2011 5 次提交
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由 Jiri Olsa 提交于
Fixing the way the tracing information is stored within record command. The current implementation is causing issues for pipe output. Following commands fail currently: perf script syscall-counts ls perf record -e syscalls:sys_exit_read ls | ./perf report -i - The tracing information is part of the perf data file. It contains several files from within the tracing debugfs and procs directories. Beside some static header files, for each tracing event the format file is added. The /proc/kallsyms file is also added. The tracing data are stored with preceeding size. This is causing some dificulties for pipe output, since there's no way to tell debugfs/proc file size before reading it. So, for pipe output, all the debugfs files were read twice. Once to get the overall size and once to store the content itself. This can cause problem in case any of these file changed, within the storage time. To fix this behaviour and ensure the integrity of the tracing data, we: - read debugfs/proc file into the temp file - get temp file size and dump it to the pipe - dump the temp file contents to the pipe Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Neil Horman <nhorman@tuxdriver.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/20111020135943.GD2092@jolsa.brq.redhat.comSigned-off-by: NJiri Olsa <jolsa@redhat.com> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
And also no leed to show the [.] (level: k, . for userspace) when showing just one DSO. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-4h3f6ro5o7ebepjbssxf0dd3@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-rf01wktu1e3f3az32nry86vu@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
Following the 'perf report' model we don't zap hist_entry instances from the rb tree, we just keep them with he->filtered set to a mask of the filters applied to it (thread, parent, DSO so far). In top we need to decay even filtered entries, but we better not touch total_period for them... Now everything seems to work when filters are applied on top as they worked in 'report', i.e. both dynamic and static hist entry browsing works with filters. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-yt4xsbq20u9x9ypuwwyw2kao@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
We lost that when we move it outside hist_entry__snprintf, but better leave it untangled of 'perf diff' stuff (pair_hist, etc). Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-qlhb6ictf5twykog6x344s0b@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 19 10月, 2011 14 次提交
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由 David Ahern 提交于
TUI help states for multiple event sessions the TAB/UNTAB keys are used to switch events. For single event sessions (e.g., the default) the tab key currently causes the tui to exit. Change that to do nothing since there is not no second event to switch to. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1319045867-12728-1-git-send-email-dsahern@gmail.comSigned-off-by: NDavid Ahern <dsahern@gmail.com> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
When the user navigates to another annotation browser pressing -> on a 'callq' line, on exit (<-) return to the originating 'callq' line. Reported-by: NIngo Molnar <mingo@elte.hu> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-z5vgver0jgevbiicfndqni5g@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 David Ahern 提交于
Feature bitmap is declared as an array of unsigned longs -- not good since its size can differ between the host that generated the data file and the host analyzing the file. We need to handle endianness, but we don't know the size of the unsigned long where the file was generated. Take a best guess at determining it: try 64-bit swap first (ie., file created on a 64-bit host), and check if the hostname feature bit is set (this feature bit is forced on as of fbe96f29). If the bit is not, undo the 64-bit swap and try a 32-bit swap. If the hostname bit is still not set (e.g., older data file), punt and fallback to the original behavior -- clearing all feature bits and setting buildid. 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: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1318980841-12616-1-git-send-email-dsahern@gmail.comSigned-off-by: NDavid Ahern <dsahern@gmail.com> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 David Ahern 提交于
Following a prelink run mapped files for long running processes can show as deleted. The current message suggests restarting long running processes. Add to that a suggestion that prelink might be the cause. Old message: /lib64/libc-2.14.so was updated, restart the long running apps that use it! New message: /lib64/libc-2.14.so was updated (is prelink enabled?). Restart the long running apps that use it! Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1318985085-20776-1-git-send-email-dsahern@gmail.comSigned-off-by: NDavid Ahern <dsahern@gmail.com> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 David Ahern 提交于
"perf script -v" emits: unknown feature 3, continuing... unknown feature 4, continuing... unknown feature 5, continuing... unknown feature 6, continuing... unknown feature 7, continuing... unknown feature 8, continuing... unknown feature 9, continuing... unknown feature 10, continuing... unknown feature 11, continuing... unknown feature 12, continuing... unknown feature 13, continuing... unknown feature 14, continuing... These are all new features added by fbe96f29. Update perf_file_section__process to know they are valid feature ids. 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: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1318984464-20650-1-git-send-email-dsahern@gmail.comSigned-off-by: NDavid Ahern <dsahern@gmail.com> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
Now that we dynamicly add entries on the timer we need to not only traverse all entries when the user zooms into threads and/or DSOs, but as well after that apply it to the new batches of hist entries in hists__collapse_resort. Reported-by: NMike Galbraith <efault@gmx.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zustn633c7hnrae94x6nld1p@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
Since with dynamic addition of new hist entries we need to apply those filters as we merge new batches of hist_entry instances, for instance in perf top. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zjhhf8kh9w1buty9p10od6rz@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
So slang after all _has_ a 'default' color, call me color blind. Change the default to it. 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> Link: http://lkml.kernel.org/n/tip-1dfxivxv0jhwldpds3v4zla2@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
And like it was in the old top. Another change so that the familiarity with the old visual is maintained. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ypmyx9p0ah4byqaygrnb09x8@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
Just use as a starting point the "[colors]" section of tools/perf/Documentation/perfconfig.example. Changed the colors to be the ones in the old perf tool if used in a green on black xterm. The next patches should allow using the colors configured for the xterm. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3vqmyerkaqltqolmnlehonew@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
That was just filling the screen with blue, even if not a crash, not something pleasant nor useful ;-) Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-58znjqvan9b1mv5pojxboidg@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
We can't have color correctly set there because in libslang (and in a future GUI) the colors must be set on a separate function call, so move that part to a separate function and make the stdio fprintf function call it. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-jpgy42438ce9tgbqppm397lq@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
The selection and scroll bar are really needed only when the user starts navigating, before that it just provide distractions. This also brings the initial screen to look more like the stdio UI, which more people are used to. The new code is flexible enough that menu like browsers can opt out and start with those UI elements. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-jfgok30kkerpfw8wtcltgy6z@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
Resetting the terminal to a sane state. Reported-by: NIngo Molnar <mingo@elte.hu> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-myu44ujofadcy3y6an2mk383@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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- 18 10月, 2011 6 次提交
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由 Arnaldo Carvalho de Melo 提交于
The navigation keys were missing (UP, DOWN arrows, etc). Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-3pnln0bws5v0yoqwd3f020nx@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Josh Stone 提交于
When compiling an i386_defconfig kernel with gcc-4.6.1-9.fc15.i686, I noticed a warning about the asm operand for test_bit in kprobes' can_boost. I discovered that this caused only the first long of twobyte_is_boostable[] to be output. Jakub filed and fixed gcc PR50571 to correct the warning and this output issue. But to solve it for less current gcc, we can make kprobes' twobyte_is_boostable[] volatile, and it won't be optimized out. Before: CC arch/x86/kernel/kprobes.o In file included from include/linux/bitops.h:22:0, from include/linux/kernel.h:17, from [...]/arch/x86/include/asm/percpu.h:44, from [...]/arch/x86/include/asm/current.h:5, from [...]/arch/x86/include/asm/processor.h:15, from [...]/arch/x86/include/asm/atomic.h:6, from include/linux/atomic.h:4, from include/linux/mutex.h:18, from include/linux/notifier.h:13, from include/linux/kprobes.h:34, from arch/x86/kernel/kprobes.c:43: [...]/arch/x86/include/asm/bitops.h: In function ‘can_boost.part.1’: [...]/arch/x86/include/asm/bitops.h:319:2: warning: use of memory input without lvalue in asm operand 1 is deprecated [enabled by default] $ objdump -rd arch/x86/kernel/kprobes.o | grep -A1 -w bt 551: 0f a3 05 00 00 00 00 bt %eax,0x0 554: R_386_32 .rodata.cst4 $ objdump -s -j .rodata.cst4 -j .data arch/x86/kernel/kprobes.o arch/x86/kernel/kprobes.o: file format elf32-i386 Contents of section .data: 0000 48000000 00000000 00000000 00000000 H............... Contents of section .rodata.cst4: 0000 4c030000 L... Only a single long of twobyte_is_boostable[] is in the object file. After, with volatile: $ objdump -rd arch/x86/kernel/kprobes.o | grep -A1 -w bt 551: 0f a3 05 20 00 00 00 bt %eax,0x20 554: R_386_32 .data $ objdump -s -j .rodata.cst4 -j .data arch/x86/kernel/kprobes.o arch/x86/kernel/kprobes.o: file format elf32-i386 Contents of section .data: 0000 48000000 00000000 00000000 00000000 H............... 0010 00000000 00000000 00000000 00000000 ................ 0020 4c030000 0f000200 ffff0000 ffcff0c0 L............... 0030 0000ffff 3bbbfff8 03ff2ebb 26bb2e77 ....;.......&..w Now all 32 bytes are output into .data instead. Signed-off-by: NJosh Stone <jistone@redhat.com> Acked-by: NMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Jakub Jelinek <jakub@redhat.com> Link: http://lkml.kernel.org/r/1318899645-4068-1-git-send-email-jistone@redhat.comSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/core
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由 Steven Rostedt 提交于
Atomic64 is now a valid type in Linux. Archs that do not have their own version of atomic64 operators are to use the generic operations. The m32r architecture needs to define GENERIC_ATOMIC64. Link: http://lkml.kernel.org/r/20111013085936.GA13046@elte.hu Link: http://lkml.kernel.org/r/1318516816.12224.12.camel@gandalf.stny.rr.com Link: http://lkml.kernel.org/r/20111017185440.GB5545@elte.huAcked-by: NHirokazu Takata <takata@linux-m32r.org> Acked-by: NDavid Rientjes <rientjes@google.com> Reported-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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由 Ingo Molnar 提交于
Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/core
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- 17 10月, 2011 3 次提交
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由 Mike Galbraith 提交于
CC util/ui/browsers/annotate.o In file included from util/ui/browsers/annotate.c:2:0: util/ui/browsers/../helpline.h:9:42: error: expected declaration specifiers or ‘...’ before ‘va_list’ CC util/ui/browsers/hists.o make: *** [util/ui/browsers/annotate.o] Error 1 make: *** Waiting for unfinished jobs.... Signed-off-by: NMike Galbraith <efault@gmx.de> Link: http://lkml.kernel.org/n/tip-9vefl2807smi7t4luhs00tg6@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
We were not recognizing 'E' as a hotkey due to a bug introduced when switching to the new, hist_entry based top. Fix it by returning that 'E' is mapped if evlist->nr_entries > 1. Reported-by: NMike Galbraith <efault@gmx.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-zcx055vnhagddvqlaqxvdhtb@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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由 Arnaldo Carvalho de Melo 提交于
The new decay routine (__hists__decay_entries) wasn't being passed the toggles, fix it. Reported-by: NMike Galbraith <efault@gmx.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-hg6m0mi1colket982oq9hhly@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
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