| Age | Commit message (Collapse) | Author | Files | Lines |
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When exit abnormally in process mode, customize SIGINT and SIGTERM signal
handler to kill the forked child processes.
Before:
# perf bench sched messaging -l 1000000 -g 1 &
[1] 8519
# # Running 'sched/messaging' benchmark:
# pgrep sched-messaging | wc -l
41
# kill -15 8519
[1]+ Terminated perf bench sched messaging -l 1000000 -g 1
# pgrep sched-messaging | wc -l
40
After:
# perf bench sched messaging -l 1000000 -g 1 &
[1] 8472
# # Running 'sched/messaging' benchmark:
# pgrep sched-messaging | wc -l
41
# kill -15 8472
[1]+ Exit 1 perf bench sched messaging -l 1000000 -g 1
# pgrep sched-messaging | wc -l
0
Signed-off-by: Yang Jihong <[email protected]>
Reviewed-by: Ian Rogers <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[ namhyung: fix a whitespace ]
Signed-off-by: Namhyung Kim <[email protected]>
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process mode
To save pid of child processes when creating worker:
1. The messaging worker is changed to `union` type to store thread id and
process pid.
2. Save child process pid in create_process_worker().
3. Rename `pth_tab` as `work_tab`.
Test result:
# perf bench sched messaging
# Running 'sched/messaging' benchmark:
# 20 sender and receiver processes per group
# 10 groups == 400 processes run
Total time: 6.744 [sec]
# perf bench sched messaging -t
# Running 'sched/messaging' benchmark:
# 20 sender and receiver threads per group
# 10 groups == 400 threads run
Total time: 5.788 [sec]
Signed-off-by: Yang Jihong <[email protected]>
Reviewed-by: Ian Rogers <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
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Refactor the create_worker() helper:
1. Modify the return value and use pthread pointer as a parameter to
facilitate value assignment in create_worker().
2. The thread worker creation and process worker creation are abstracted
into independent helpers.
No functional change.
Test result:
# perf bench sched messaging
# Running 'sched/messaging' benchmark:
# 20 sender and receiver processes per group
# 10 groups == 400 processes run
Total time: 6.332 [sec]
# perf bench sched messaging -t
# Running 'sched/messaging' benchmark:
# 20 sender and receiver threads per group
# 10 groups == 400 threads run
Total time: 5.545 [sec]
Signed-off-by: Yang Jihong <[email protected]>
Reviewed-by: Ian Rogers <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
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Fixed several code style issues in sched-messaging:
1. Use one space around "-" and "+" operators.
2. When a long line is broken, the operator is at the end of the line.
Signed-off-by: Yang Jihong <[email protected]>
Reviewed-by: Ian Rogers <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
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Running shellcheck on some of the shell scripts, throws
below warning on shellcheck v0.6. Example:
In tests/shell/coresight/asm_pure_loop.sh line 14:
DATA="$DATD/perf-$TEST-$DATV.data"
^---^ SC2153: Possible misspelling: DATD may not be assigned, but DATA is.
Here, DATD is exported from "lib/coresight.sh" and this
warning can be ignored. Use "shellcheck disable=" to ignore
this check.
Signed-off-by: Athira Rajeev <[email protected]>
Tested-by: Ian Rogers <[email protected]>
Reviewed-by: Kajol Jain <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
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Running shellcheck on stat+shadow_stat.sh generates below
warning
In tests/shell/stat+csv_summary.sh line 26:
while read _num _event _run _pct
^--^ SC2034: _num appears unused. Verify use (or export if used externally).
^----^ SC2034: _event appears unused. Verify use (or export if used externally).
^--^ SC2034: _run appears unused. Verify use (or export if used externally).
^--^ SC2034: _pct appears unused. Verify use (or export if used externally).
This variable is intentionally unused since it is
needed to parse through the output. commit used "_"
as a prefix for this throw away variable. But this
stil shows warning with shellcheck v0.6. Fix this
by only using "_" instead of prefix and variable name.
Signed-off-by: Athira Rajeev <[email protected]>
Tested-by: Ian Rogers <[email protected]>
Reviewed-by: Kajol Jain <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
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Running shellcheck on some of the shell scripts throws
below error:
In tests/shell/coresight/unroll_loop_thread_10.sh line 8:
. "$(dirname $0)"/../lib/coresight.sh
^-- SC1090: Can't follow non-constant source. Use a directive to specify location.
This happens on shellcheck version "0.6.0". Fix shellcheck
warning for SC1090 using "shellcheck source="i option to mention
the location of sourced files.
Signed-off-by: Athira Rajeev <[email protected]>
Tested-by: Ian Rogers <[email protected]>
Reviewed-by: Kajol Jain <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
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There is a spelling mistake in a pr_debug message. Fix it.
(I didn't see this one in the first spell check scan I ran).
Signed-off-by: Colin Ian King <[email protected]>
Reviewed-by: Ian Rogers <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
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Dummy events are created with an attribute where the period and freq
are zero. evsel__config will then see the uninitialized values and
initialize them in evsel__default_freq_period. As fequency mode is
used by default the dummy event would be set to use frequency
mode. However, this has no effect on the dummy event but does cause
unnecessary timers/interrupts. Avoid this overhead by setting the
period to 1 for dummy events.
evlist__add_aux_dummy calls evlist__add_dummy then sets freq=0 and
period=1. This isn't necessary after this change and so the setting is
removed.
From Stephane:
The dummy event is not counting anything. It is used to collect mmap
records and avoid a race condition during the synthesize mmap phase of
perf record. As such, it should not cause any overhead during active
profiling. Yet, it did. Because of a bug the dummy event was
programmed as a sampling event in frequency mode. Events in that mode
incur more kernel overheads because on timer tick, the kernel has to
look at the number of samples for each event and potentially adjust
the sampling period to achieve the desired frequency. The dummy event
was therefore adding a frequency event to task and ctx contexts we may
otherwise not have any, e.g.,
perf record -a -e cpu/event=0x3c,period=10000000/.
On each timer tick the perf_adjust_freq_unthr_context() is invoked and
if ctx->nr_freq is non-zero, then the kernel will loop over ALL the
events of the context looking for frequency mode ones. In doing, so it
locks the context, and enable/disable the PMU of each hw event. If all
the events of the context are in period mode, the kernel will have to
traverse the list for nothing incurring overhead. The overhead is
multiplied by a very large factor when this happens in a guest kernel.
There is no need for the dummy event to be in frequency mode, it does
not count anything and therefore should not cause extra overhead for
no reason.
Fixes: 5bae0250237f ("perf evlist: Introduce perf_evlist__new_dummy constructor")
Reported-by: Stephane Eranian <[email protected]>
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Adrian Hunter <[email protected]>
Cc: Yang Jihong <[email protected]>
Cc: Kan Liang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
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Remove the repeated word "of" in comments.
Signed-off-by: Charles Han <[email protected]>
Reviewed-by: Ian Rogers <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
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This patch addresses review comments that were given for
705ed549148f ("perf vendor events arm64: Add AmpereOne metrics")
but didn't make it to the original patch [1][2]
Changes include: A fix for backend_memory formula, use of standard metrics
when possible, using #slots, renaming metrics to avoid spaces in the names,
and cleanup.
[1] https://lore.kernel.org/linux-perf-users/[email protected]/
[2] https://lore.kernel.org/linux-perf-users/[email protected]/
Fixes: 705ed549148f ("perf vendor events arm64: Add AmpereOne metrics")
Signed-off-by: Ilkka Koskinen <[email protected]>
Reviewed-by: Ian Rogers <[email protected]>
Cc: James Clark <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mike Leach <[email protected]>
Cc: Dave Kleikamp <[email protected]>
Cc: John Garry <[email protected]>
Cc: D Scott Phillips <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
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The perf_pmu__parse_* functions for the sysfs files of pmu event’s
scale, unit, per-pkg and snapshot were updated in commit 7b723dbb96e8
("perf pmu: Be lazy about loading event info files from sysfs").
However, the paths for these sysfs files were incorrect. This resulted
in perf stat reporting values with wrong scaling and missing units. This
is fixed by correcting the paths for these sysfs files.
Before this fix:
$sudo perf stat -e power/energy-pkg/ -- sleep 2
Performance counter stats for 'system wide':
351,217,188,864 power/energy-pkg/
2.004127961 seconds time elapsed
After this fix:
$sudo perf stat -e power/energy-pkg/ -- sleep 2
Performance counter stats for 'system wide':
80.58 Joules power/energy-pkg/
2.004009749 seconds time elapsed
Fixes: 7b723dbb96e8 ("perf pmu: Be lazy about loading event info files from sysfs")
Signed-off-by: Wyes Karny <[email protected]>
Reviewed-by: Ian Rogers <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
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When building with Clang, I am getting many warnings from the selftests/rseq tree.
Here's one such example from rseq tree:
| param_test.c:1234:10: error: address argument to atomic operation must be a pointer to _Atomic type ('intptr_t *' (aka 'long *') invalid)
| 1234 | while (!atomic_load(&args->percpu_list_ptr)) {}
| | ^ ~~~~~~~~~~~~~~~~~~~~~~
| /usr/local/google/home/justinstitt/repos/tc-build/build/llvm/final/lib/clang/18/include/stdatomic.h:140:29: note: expanded from macro 'atomic_load'
| 140 | #define atomic_load(object) __c11_atomic_load(object, __ATOMIC_SEQ_CST)
| | ^ ~~~~~~
Use compiler builtins `__atomic_load_n()` and `__atomic_store_n()` with
accompanying __ATOMIC_ACQUIRE and __ATOMIC_RELEASE, respectively. This
will fix the warnings because the compiler builtins do not expect their
arguments to have _Atomic type. This should also make TSAN happier.
Link: https://github.com/ClangBuiltLinux/linux/issues/1698
Link: https://github.com/ClangBuiltLinux/continuous-integration2/issues/61
Suggested-by: Mathieu Desnoyers <[email protected]>
Signed-off-by: Justin Stitt <[email protected]>
Reviewed-by: Mathieu Desnoyers <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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When running the test for the damon subsystem, there are a lot of
warnings because test scripts do not have executable permission,
for example:
Warning: file debugfs_attrs.sh is not executable
Warning: file debugfs_schemes.sh is not executable
Warning: file debugfs_target_ids.sh is not executable
...
This patch adds executable permission to test scripts to eliminate
these warnings.
Signed-off-by: Juntong Deng <[email protected]>
Reviewed-by: SeongJae Park <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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The 'uevents' subdirectory does not exist in tools/testing/selftests/
and adding 'uevents' to the TARGETS list results in the following error:
make[1]: Entering directory 'xx/tools/testing/selftests/uevents'
make[1]: *** No targets specified and no makefile found. Stop.
make[1]: Leaving directory 'xx/tools/testing/selftests/uevents'
What actually exists in tools/testing/selftests/ is the 'uevent'
subdirectory.
Signed-off-by: Juntong Deng <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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The point in iterating variant->mock_domains is to test the idev_ids[0]
and idev_ids[1]. So use it instead of keeping testing idev_ids[0] only.
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Nicolin Chen <[email protected]>
Reviewed-by: Kevin Tian <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fix from Shuah Khan:
"One single fix to unmount tracefs when test created mount"
* tag 'linux-kselftest-fixes-6.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/user_events: Fix to unmount tracefs when test created mount
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git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf tools fixes from Namhyung Kim:
"Build:
- Update header files in the tools/**/include directory to sync with
the kernel sources as usual.
- Remove unused bpf-prologue files. While it's not strictly a fix,
but the functionality was removed in this cycle so better to get
rid of the code together.
- Other minor build fixes.
Misc:
- Fix uninitialized memory access in PMU parsing code
- Fix segfaults on software event"
* tag 'perf-tools-fixes-for-v6.6-1-2023-09-25' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
perf jevent: fix core dump on software events on s390
perf pmu: Ensure all alias variables are initialized
perf jevents metric: Fix type of strcmp_cpuid_str
perf trace: Avoid compile error wrt redefining bool
perf bpf-prologue: Remove unused file
tools headers UAPI: Update tools's copy of drm.h headers
tools arch x86: Sync the msr-index.h copy with the kernel sources
perf bench sched-seccomp-notify: Use the tools copy of seccomp.h UAPI
tools headers UAPI: Copy seccomp.h to be able to build 'perf bench' in older systems
tools headers UAPI: Sync files changed by new fchmodat2 and map_shadow_stack syscalls with the kernel sources
perf tools: Update copy of libbpf's hashmap.c
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Adding selftest that puts kprobe on bpf_fentry_test1 that calls bpf_printk
and invokes bpf_trace_printk tracepoint. The bpf_trace_printk tracepoint
has test[234] programs attached to it.
Because kprobe execution goes through bpf_prog_active check, programs
attached to the tracepoint will fail the recursion check and increment the
recursion_misses stats.
Signed-off-by: Jiri Olsa <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Tested-by: Song Liu <[email protected]>
Reviewed-by: Song Liu <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Adding selftest that puts kprobe.multi on bpf_fentry_test1 that
calls bpf_kfunc_common_test kfunc which has 3 perf event kprobes
and 1 kprobe.multi attached.
Because fprobe (kprobe.multi attach layear) does not have strict
recursion check the kprobe's bpf_prog_active check is hit for test2-5.
Disabling this test for arm64, because there's no fprobe support yet.
Signed-off-by: Jiri Olsa <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Tested-by: Song Liu <[email protected]>
Reviewed-by: Song Liu <[email protected]>
Acked-by: Hou Tao <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Adding test that puts kprobe on bpf_fentry_test1 that calls
bpf_kfunc_common_test kfunc, which has also kprobe on.
The latter won't get triggered due to kprobe recursion check
and kprobe missed counter is incremented.
Signed-off-by: Jiri Olsa <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Acked-by: Hou Tao <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Adding 'missed' field to display missed counts for kprobes
attached by perf event link, like:
# bpftool link
5: perf_event prog 82
kprobe ffffffff815203e0 ksys_write
6: perf_event prog 83
kprobe ffffffff811d1e50 scheduler_tick missed 682217
# bpftool link -jp
[{
"id": 5,
"type": "perf_event",
"prog_id": 82,
"retprobe": false,
"addr": 18446744071584220128,
"func": "ksys_write",
"offset": 0,
"missed": 0
},{
"id": 6,
"type": "perf_event",
"prog_id": 83,
"retprobe": false,
"addr": 18446744071580753488,
"func": "scheduler_tick",
"offset": 0,
"missed": 693469
}
]
Signed-off-by: Jiri Olsa <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Reviewed-by: Quentin Monnet <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Adding 'missed' field to display missed counts for kprobes
attached by kprobe multi link, like:
# bpftool link
5: kprobe_multi prog 76
kprobe.multi func_cnt 1 missed 1
addr func [module]
ffffffffa039c030 fp3_test [fprobe_test]
# bpftool link -jp
[{
"id": 5,
"type": "kprobe_multi",
"prog_id": 76,
"retprobe": false,
"func_cnt": 1,
"missed": 1,
"funcs": [{
"addr": 18446744072102723632,
"func": "fp3_test",
"module": "fprobe_test"
}
]
}
]
Signed-off-by: Jiri Olsa <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Reviewed-by: Quentin Monnet <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Add missed value to kprobe attached through perf link info to
hold the stats of missed kprobe handler execution.
The kprobe's missed counter gets incremented when kprobe handler
is not executed due to another kprobe running on the same cpu.
Signed-off-by: Jiri Olsa <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Add missed value to kprobe_multi link info to hold the stats of missed
kprobe_multi probe.
The missed counter gets incremented when fprobe fails the recursion
check or there's no rethook available for return probe. In either
case the attached bpf program is not executed.
Signed-off-by: Jiri Olsa <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Tested-by: Song Liu <[email protected]>
Reviewed-by: Song Liu <[email protected]>
Acked-by: Hou Tao <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Add tests for new API ring__consume.
Signed-off-by: Martin Kelly <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Add ring__consume to consume a single ringbuffer, analogous to
ring_buffer__consume.
Signed-off-by: Martin Kelly <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Add tests for the new API ring__map_fd.
Signed-off-by: Martin Kelly <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Add ring__map_fd to get the file descriptor underlying a given
ringbuffer.
Signed-off-by: Martin Kelly <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Add tests for the new API ring__size.
Signed-off-by: Martin Kelly <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Add ring__size to get the total size of a given ringbuffer.
Signed-off-by: Martin Kelly <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Add test for the new API ring__avail_data_size.
Signed-off-by: Martin Kelly <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Add ring__avail_data_size for querying the currently available data in
the ringbuffer, similar to the BPF_RB_AVAIL_DATA flag in
bpf_ringbuf_query. This is racy during ongoing operations but is still
useful for overall information on how a ringbuffer is behaving.
Signed-off-by: Martin Kelly <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Add tests for the new APIs ring__producer_pos and ring__consumer_pos.
Signed-off-by: Martin Kelly <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Add APIs to get the producer and consumer position for a given
ringbuffer.
Signed-off-by: Martin Kelly <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Add tests for the new API ring_buffer__ring.
Signed-off-by: Martin Kelly <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Add a new function ring_buffer__ring, which exposes struct ring * to the
user, representing a single ringbuffer.
Signed-off-by: Martin Kelly <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Switch rb->rings to be an array of pointers instead of a contiguous
block. This allows for each ring pointer to be stable after
ring_buffer__add is called, which allows us to expose struct ring * to
the user without gotchas. Without this change, the realloc in
ring_buffer__add could invalidate a struct ring *, making it unsafe to
give to the user.
Signed-off-by: Martin Kelly <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Refactor the cleanup code in ring_buffer__add to use a unified err_out
label. This reduces code duplication, as well as plugging a potential
leak if mmap_sz != (__u64)(size_t)mmap_sz (currently this would miss
unmapping tmp because ringbuf_unmap_ring isn't called).
Signed-off-by: Martin Kelly <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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In the ZA and ZT test programs we explicitly validate that PSTATE.ZA is as
expected on each loop but we do not do the equivalent for our streaming
SVE test, add a check that we are still in streaming mode on every loop
in case that goes wrong.
Signed-off-by: Mark Brown <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>
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Pull kvm fixes from Paolo Bonzini:
"ARM:
- Fix EL2 Stage-1 MMIO mappings where a random address was used
- Fix SMCCC function number comparison when the SVE hint is set
RISC-V:
- Fix KVM_GET_REG_LIST API for ISA_EXT registers
- Fix reading ISA_EXT register of a missing extension
- Fix ISA_EXT register handling in get-reg-list test
- Fix filtering of AIA registers in get-reg-list test
x86:
- Fixes for TSC_AUX virtualization
- Stop zapping page tables asynchronously, since we don't zap them as
often as before"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: SVM: Do not use user return MSR support for virtualized TSC_AUX
KVM: SVM: Fix TSC_AUX virtualization setup
KVM: SVM: INTERCEPT_RDTSCP is never intercepted anyway
KVM: x86/mmu: Stop zapping invalidated TDP MMU roots asynchronously
KVM: x86/mmu: Do not filter address spaces in for_each_tdp_mmu_root_yield_safe()
KVM: x86/mmu: Open code leaf invalidation from mmu_notifier
KVM: riscv: selftests: Selectively filter-out AIA registers
KVM: riscv: selftests: Fix ISA_EXT register handling in get-reg-list
RISC-V: KVM: Fix riscv_vcpu_get_isa_ext_single() for missing extensions
RISC-V: KVM: Fix KVM_GET_REG_LIST API for ISA_EXT registers
KVM: selftests: Assert that vasprintf() is successful
KVM: arm64: nvhe: Ignore SVE hint in SMCCC function ID
KVM: arm64: Properly return allocated EL2 VA from hyp_alloc_private_va_range()
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This commit does the long-overdue conversion of the parse-console.sh
file to use mktemp to create its temporary directory.
Signed-off-by: Paul E. McKenney <[email protected]>
Signed-off-by: Frederic Weisbecker <[email protected]>
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This commit adds a --debug-info argument to kvm.sh in order to ease
interpretation of addresses printed on the console and the like.
This argument also disables KASLR.
Signed-off-by: Paul E. McKenney <[email protected]>
Signed-off-by: Frederic Weisbecker <[email protected]>
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In torture.sh, the testing of refscale incorrectly used verbose_batched
as a kernel boot parameter, which causes this parameter to be passed
to the init process. This commit therefore prefixes it with refscale,
so that refscale.verbose_batched is passed to the kernel.
Signed-off-by: Paul E. McKenney <[email protected]>
Signed-off-by: Frederic Weisbecker <[email protected]>
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When debugging, it can be difficult to quickly find the ftrace dump
within the console log, which in turn makes it difficult to process it
independent of the rest of the console output. This commit therefore
copies the contents of the buffers into its own file to make it easier
to locate and process the ftrace dump. The original ftrace dump is still
available in the console log in cases because it can be more convenient
to process it in situ, for example, for scripts that process console
output as well as ftrace-dump data.
Also handle the case of multiple ftrace dumps potentially showing up in the
log. Example for a file like [1], it will extract as [2].
[1]:
foo
foo
Dumping ftrace buffer:
---------------------------------
blah
blah
---------------------------------
more
bar
baz
Dumping ftrace buffer:
---------------------------------
blah2
blah2
---------------------------------
bleh
bleh
[2]:
Ftrace dump 1:
blah
blah
Ftrace dump 2:
blah2
blah2
[ paulmck: Fixed awk indentation, input up front. ]
Signed-off-by: Joel Fernandes (Google) <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
Signed-off-by: Frederic Weisbecker <[email protected]>
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This commit adds CONFIG_DEBUG_OBJECTS=y to the TRACE02 rcutorture scenario
to catch any further RCU Tasks bugs involving this Kconfig option.
Signed-off-by: Paul E. McKenney <[email protected]>
Signed-off-by: Frederic Weisbecker <[email protected]>
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This commit switches from the old "/tmp/kvm-recheck.sh.$$" approach to
the newer and now reliable "mktemp" approach.
Signed-off-by: Paul E. McKenney <[email protected]>
Signed-off-by: Frederic Weisbecker <[email protected]>
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The deta angle and deta velocity channels were added in parallel with
color temperature and chromacity so this merge had to assign a
consistent order. I put the color related ones second.
Signed-off-by: Jonathan Cameron <[email protected]>
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In most cases, ambient color sensors also support the x and y light
colors, which represent the coordinates on the CIE 1931 chromaticity
diagram. Thus, add channel type for chromaticity.
Signed-off-by: Basavaraj Natikar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>
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In most cases, ambient color sensors also support light color
temperature, which is measured in kelvin. Thus, add channel type light
color temperature.
Signed-off-by: Basavaraj Natikar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>
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