| Commit message (Collapse) | Author | Age | Files | Lines |
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Specification claims latest version of jitdump file format is 2. Current
jit dump reading code treats 1 as the latest version.
Correct spec to match code.
The original language made it unclear the value to be written in the
magic field.
Revise language that the writer always writes the same value. Specify
that the reader uses the value to detect endian mismatches.
Signed-off-by: Steve MacLean <Steve.MacLean@Microsoft.com>
Acked-by: Stephane Eranian <eranian@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Brian Robbins <brianrob@microsoft.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Eric Saint-Etienne <eric.saint.etienne@oracle.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Keeping <john@metanate.com>
Cc: John Salem <josalem@microsoft.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Tom McDonald <thomas.mcdonald@microsoft.com>
Link: http://lore.kernel.org/lkml/BN8PR21MB1362F63CDE7AC69736FC7F9EF7800@BN8PR21MB1362.namprd21.prod.outlook.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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During perf inject --jit, JIT_CODE_MOVE records were injecting MMAP records
with an incorrect filename. Specifically it was missing the ".so" suffix.
Further the JIT_CODE_LOAD record were silently truncating the
jr->load.code_index field to 32 bits before generating the filename.
Make both records emit the same filename based on the full 64 bit
code_index field.
Fixes: 9b07e27f88b9 ("perf inject: Add jitdump mmap injection support")
Cc: stable@vger.kernel.org # v4.6+
Signed-off-by: Steve MacLean <Steve.MacLean@Microsoft.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Brian Robbins <brianrob@microsoft.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Eric Saint-Etienne <eric.saint.etienne@oracle.com>
Cc: John Keeping <john@metanate.com>
Cc: John Salem <josalem@microsoft.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom McDonald <thomas.mcdonald@microsoft.com>
Link: http://lore.kernel.org/lkml/BN8PR21MB1362FF8F127B31DBF4121528F7800@BN8PR21MB1362.namprd21.prod.outlook.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Whenever an mmap/mmap2 event occurs, the map tree must be updated to add a new
entry. If a new map overlaps a previous map, the overlapped section of the
previous map is effectively unmapped, but the non-overlapping sections are
still valid.
maps__fixup_overlappings() is responsible for creating any new map entries from
the previously overlapped map. It optionally creates a before and an after map.
When creating the after map the existing code failed to adjust the map.pgoff.
This meant the new after map would incorrectly calculate the file offset
for the ip. This results in incorrect symbol name resolution for any ip in the
after region.
Make maps__fixup_overlappings() correctly populate map.pgoff.
Add an assert that new mapping matches old mapping at the beginning of
the after map.
Committer-testing:
Validated correct parsing of libcoreclr.so symbols from .NET Core 3.0 preview9
(which didn't strip symbols).
Preparation:
~/dotnet3.0-preview9/dotnet new webapi -o perfSymbol
cd perfSymbol
~/dotnet3.0-preview9/dotnet publish
perf record ~/dotnet3.0-preview9/dotnet \
bin/Debug/netcoreapp3.0/publish/perfSymbol.dll
^C
Before:
perf script --show-mmap-events 2>&1 | grep -e MMAP -e unknown |\
grep libcoreclr.so | head -n 4
dotnet 1907 373352.698780: PERF_RECORD_MMAP2 1907/1907: \
[0x7fe615726000(0x768000) @ 0 08:02 5510620 765057155]: \
r-xp .../3.0.0-preview9-19423-09/libcoreclr.so
dotnet 1907 373352.701091: PERF_RECORD_MMAP2 1907/1907: \
[0x7fe615974000(0x1000) @ 0x24e000 08:02 5510620 765057155]: \
rwxp .../3.0.0-preview9-19423-09/libcoreclr.so
dotnet 1907 373352.701241: PERF_RECORD_MMAP2 1907/1907: \
[0x7fe615c42000(0x1000) @ 0x51c000 08:02 5510620 765057155]: \
rwxp .../3.0.0-preview9-19423-09/libcoreclr.so
dotnet 1907 373352.705249: 250000 cpu-clock: \
7fe6159a1f99 [unknown] \
(.../3.0.0-preview9-19423-09/libcoreclr.so)
After:
perf script --show-mmap-events 2>&1 | grep -e MMAP -e unknown |\
grep libcoreclr.so | head -n 4
dotnet 1907 373352.698780: PERF_RECORD_MMAP2 1907/1907: \
[0x7fe615726000(0x768000) @ 0 08:02 5510620 765057155]: \
r-xp .../3.0.0-preview9-19423-09/libcoreclr.so
dotnet 1907 373352.701091: PERF_RECORD_MMAP2 1907/1907: \
[0x7fe615974000(0x1000) @ 0x24e000 08:02 5510620 765057155]: \
rwxp .../3.0.0-preview9-19423-09/libcoreclr.so
dotnet 1907 373352.701241: PERF_RECORD_MMAP2 1907/1907: \
[0x7fe615c42000(0x1000) @ 0x51c000 08:02 5510620 765057155]: \
rwxp .../3.0.0-preview9-19423-09/libcoreclr.so
All the [unknown] symbols were resolved.
Signed-off-by: Steve MacLean <Steve.MacLean@Microsoft.com>
Tested-by: Brian Robbins <brianrob@microsoft.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Eric Saint-Etienne <eric.saint.etienne@oracle.com>
Cc: John Keeping <john@metanate.com>
Cc: John Salem <josalem@microsoft.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom McDonald <thomas.mcdonald@microsoft.com>
Link: http://lore.kernel.org/lkml/BN8PR21MB136270949F22A6A02335C238F7800@BN8PR21MB1362.namprd21.prod.outlook.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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In the pmu-events directory for JSON file definitions use the
official machine name IBM z15 instead of machine type number
8561. This is consistent with previous machines.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: http://lore.kernel.org/lkml/20190927081147.18345-2-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add s390 transaction counter definition for machine 8561. This is the
same file as for the predecessor machine.
Fixes: 6e67d77d673d ("perf vendor events s390: Add JSON files for machine type 8561")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Link: http://lore.kernel.org/lkml/20190927081147.18345-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The 'test_dir' variable is assigned to the 'release' array which is
out-of-scope 3 lines later.
Extend the scope of the 'release' array so that an out-of-scope array
isn't accessed.
Bug detected by clang's address sanitizer.
Fixes: 07bc5c699a3d ("perf tools: Make fetch_kernel_version() publicly available")
Cc: stable@vger.kernel.org # v4.4+
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lore.kernel.org/lkml/20190926220018.25402-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick the changes in:
200824f55eef ("KVM: s390: Disallow invalid bits in kvm_valid_regs and kvm_dirty_regs")
4a53d99dd0c2 ("KVM: VMX: Introduce exit reason for receiving INIT signal on guest-mode")
7396d337cfad ("KVM: x86: Return to userspace with internal error on unexpected exit reason")
92f35b751c71 ("KVM: arm/arm64: vgic: Allow more than 256 vcpus for KVM_IRQ_LINE")
None of them trigger any changes in tooling, this time this is just to silence
these perf build warnings:
Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/vmx.h' differs from latest version at 'arch/x86/include/uapi/asm/vmx.h'
diff -u tools/arch/x86/include/uapi/asm/vmx.h arch/x86/include/uapi/asm/vmx.h
Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/kvm.h' differs from latest version at 'arch/s390/include/uapi/asm/kvm.h'
diff -u tools/arch/s390/include/uapi/asm/kvm.h arch/s390/include/uapi/asm/kvm.h
Warning: Kernel ABI header at 'tools/arch/arm/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm/include/uapi/asm/kvm.h'
diff -u tools/arch/arm/include/uapi/asm/kvm.h arch/arm/include/uapi/asm/kvm.h
Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Janosch Frank <frankja@linux.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Liran Alon <liran.alon@oracle.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Thomas Huth <thuth@redhat.com>
Link: https://lkml.kernel.org/n/tip-akuugvvjxte26kzv23zp5d2z@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick the changes from:
78a1b96bcf7a ("fscrypt: add FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS ioctl")
23c688b54016 ("fscrypt: allow unprivileged users to add/remove keys for v2 policies")
5dae460c2292 ("fscrypt: v2 encryption policy support")
5a7e29924dac ("fscrypt: add FS_IOC_GET_ENCRYPTION_KEY_STATUS ioctl")
b1c0ec3599f4 ("fscrypt: add FS_IOC_REMOVE_ENCRYPTION_KEY ioctl")
22d94f493bfb ("fscrypt: add FS_IOC_ADD_ENCRYPTION_KEY ioctl")
3b6df59bc4d2 ("fscrypt: use FSCRYPT_* definitions, not FS_*")
2336d0deb2d4 ("fscrypt: use FSCRYPT_ prefix for uapi constants")
7af0ab0d3aab ("fs, fscrypt: move uapi definitions to new header <linux/fscrypt.h>")
That don't trigger any changes in tooling, as it so far is used only
for:
$ grep -l 'fs\.h' tools/perf/trace/beauty/*.sh | xargs grep regex=
tools/perf/trace/beauty/rename_flags.sh:regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+RENAME_([[:alnum:]_]+)[[:space:]]+\(1[[:space:]]*<<[[:space:]]*([[:xdigit:]]+)[[:space:]]*\)[[:space:]]*.*'
tools/perf/trace/beauty/sync_file_range.sh:regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+SYNC_FILE_RANGE_([[:alnum:]_]+)[[:space:]]+([[:xdigit:]]+)[[:space:]]*.*'
tools/perf/trace/beauty/usbdevfs_ioctl.sh:regex="^#[[:space:]]*define[[:space:]]+USBDEVFS_(\w+)(\(\w+\))?[[:space:]]+_IO[CWR]{0,2}\([[:space:]]*(_IOC_\w+,[[:space:]]*)?'U'[[:space:]]*,[[:space:]]*([[:digit:]]+).*"
tools/perf/trace/beauty/usbdevfs_ioctl.sh:regex="^#[[:space:]]*define[[:space:]]+USBDEVFS_(\w+)[[:space:]]+_IO[WR]{0,2}\([[:space:]]*'U'[[:space:]]*,[[:space:]]*([[:digit:]]+).*"
$
This silences this perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/fs.h' differs from latest version at 'include/uapi/linux/fs.h'
diff -u tools/include/uapi/linux/fs.h include/uapi/linux/fs.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Eric Biggers <ebiggers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-44g48exl9br9ba0t64chqb4i@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes from:
4ed3350539aa ("USB: usbfs: Add a capability flag for runtime suspend")
7794f486ed0b ("usbfs: Add ioctls for runtime power management")
This triggers these changes in the kernel sources, automagically
supporting these new ioctls in the 'perf trace' beautifiers.
Soon this will be used in things like filter expressions for tracepoints
in 'perf record', 'perf trace', 'perf top', i.e. filter expressions will
do a lookup to turn things like USBDEVFS_WAIT_FOR_RESUME into _IO('U',
35) before associating the tracepoint expression to tracepoint perf
event.
$ tools/perf/trace/beauty/usbdevfs_ioctl.sh > before
$ cp include/uapi/linux/usbdevice_fs.h tools/include/uapi/linux/usbdevice_fs.h
$ git diff
diff --git a/tools/include/uapi/linux/usbdevice_fs.h b/tools/include/uapi/linux/usbdevice_fs.h
index 78efe870c2b7..cf525cddeb94 100644
--- a/tools/include/uapi/linux/usbdevice_fs.h
+++ b/tools/include/uapi/linux/usbdevice_fs.h
@@ -158,6 +158,7 @@ struct usbdevfs_hub_portinfo {
#define USBDEVFS_CAP_MMAP 0x20
#define USBDEVFS_CAP_DROP_PRIVILEGES 0x40
#define USBDEVFS_CAP_CONNINFO_EX 0x80
+#define USBDEVFS_CAP_SUSPEND 0x100
/* USBDEVFS_DISCONNECT_CLAIM flags & struct */
@@ -223,5 +224,8 @@ struct usbdevfs_streams {
* extending size of the data returned.
*/
#define USBDEVFS_CONNINFO_EX(len) _IOC(_IOC_READ, 'U', 32, len)
+#define USBDEVFS_FORBID_SUSPEND _IO('U', 33)
+#define USBDEVFS_ALLOW_SUSPEND _IO('U', 34)
+#define USBDEVFS_WAIT_FOR_RESUME _IO('U', 35)
#endif /* _UAPI_LINUX_USBDEVICE_FS_H */
$ tools/perf/trace/beauty/usbdevfs_ioctl.sh > after
$ diff -u before after
--- before 2019-09-27 11:41:50.634867620 -0300
+++ after 2019-09-27 11:42:07.453102978 -0300
@@ -24,6 +24,9 @@
[30] = "DROP_PRIVILEGES",
[31] = "GET_SPEED",
[32] = "CONNINFO_EX",
+ [33] = "FORBID_SUSPEND",
+ [34] = "ALLOW_SUSPEND",
+ [35] = "WAIT_FOR_RESUME",
[3] = "RESETEP",
[4] = "SETINTERFACE",
[5] = "SETCONFIGURATION",
$
This addresses the following perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/usbdevice_fs.h' differs from latest version at 'include/uapi/linux/usbdevice_fs.h'
diff -u tools/include/uapi/linux/usbdevice_fs.h include/uapi/linux/usbdevice_fs.h
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-x1rb109b9nfi7pukota82xhj@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick the changes from:
1a4e58cce84e ("mm: introduce MADV_PAGEOUT")
9c276cc65a58 ("mm: introduce MADV_COLD")
That result in these changes in the tools:
$ tools/perf/trace/beauty/madvise_behavior.sh > before
$ cp include/uapi/asm-generic/mman-common.h tools/include/uapi/asm-generic/mman-common.h
$ git diff
diff --git a/tools/include/uapi/asm-generic/mman-common.h b/tools/include/uapi/asm-generic/mman-common.h
index 63b1f506ea67..c160a5354eb6 100644
--- a/tools/include/uapi/asm-generic/mman-common.h
+++ b/tools/include/uapi/asm-generic/mman-common.h
@@ -67,6 +67,9 @@
#define MADV_WIPEONFORK 18 /* Zero memory on fork, child only */
#define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK */
+#define MADV_COLD 20 /* deactivate these pages */
+#define MADV_PAGEOUT 21 /* reclaim these pages */
+
/* compatibility flags */
#define MAP_FILE 0
$ tools/perf/trace/beauty/madvise_behavior.sh > after
$ diff -u before after
--- before 2019-09-27 11:29:43.346320100 -0300
+++ after 2019-09-27 11:30:03.838570439 -0300
@@ -16,6 +16,8 @@
[17] = "DODUMP",
[18] = "WIPEONFORK",
[19] = "KEEPONFORK",
+ [20] = "COLD",
+ [21] = "PAGEOUT",
[100] = "HWPOISON",
[101] = "SOFT_OFFLINE",
};
$
I.e. now when madvise gets those behaviours as args, it will be able to
translate from the number to a human readable string.
This addresses the following perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/mman-common.h' differs from latest version at 'include/uapi/asm-generic/mman-common.h'
diff -u tools/include/uapi/asm-generic/mman-common.h include/uapi/asm-generic/mman-common.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-n40y6c4sa49p29q6sl8w3ufx@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick the change in:
bf73fc0fa9cf ("drm/i915: Show support for accurate sw PMU busyness tracking")
That don't result in any changes in tooling, just silences this perf
build warning:
Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-o651nt7vpz93tu3nmx4f3xql@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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With this change if a perf_date parameter is provided to asciidoc then
it will override the default date written to the man page metadata.
Without this change, or if the perf_date isn't specified, then the
current date is written to the metadata.
Having this parameter allows the metadata to be constant if builds
happen on different dates.
The name of the parameter is intended to be consistent with the existing
perf_version parameter.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20190921041327.155054-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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An optimized build such as:
make -C tools/perf CLANG=1 CC=clang EXTRA_CFLAGS="-O3
will turn the dereference operation into a ud2 instruction, raising a
SIGILL rather than a SIGSEGV. Use raise(..) for correctness and clarity.
Similar issues were addressed in Numfor Mbiziwo-Tiapo's patch:
https://lkml.org/lkml/2019/7/8/1234
Committer testing:
Before:
[root@quaco ~]# perf test hooks
55: perf hooks : Ok
[root@quaco ~]# perf test -v hooks
55: perf hooks :
--- start ---
test child forked, pid 17092
SIGSEGV is observed as expected, try to recover.
Fatal error (SEGFAULT) in perf hook 'test'
test child finished with 0
---- end ----
perf hooks: Ok
[root@quaco ~]#
After:
[root@quaco ~]# perf test hooks
55: perf hooks : Ok
[root@quaco ~]# perf test -v hooks
55: perf hooks :
--- start ---
test child forked, pid 17909
SIGSEGV is observed as expected, try to recover.
Fatal error (SEGFAULT) in perf hook 'test'
test child finished with 0
---- end ----
perf hooks: Ok
[root@quaco ~]#
Fixes: a074865e60ed ("perf tools: Introduce perf hooks")
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lore.kernel.org/lkml/20190925195924.152834-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Unconditionally defining _FORTIFY_SOURCE can break tools that don't work
with it, such as memory sanitizers:
https://github.com/google/sanitizers/wiki/AddressSanitizer#faq
Fixes: 4b6ab94eabe4 ("perf subcmd: Create subcmd library")
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20190925195924.152834-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Fix a kernel crash in spufs_create_root() on Cell machines, since the
new mount API went in.
Fix a regression in our KVM code caused by our recent PCR changes.
Avoid a warning message about a failing hypervisor API on systems that
don't have that API.
A couple of minor build fixes.
Thanks to: Alexey Kardashevskiy, Alistair Popple, Desnes A. Nunes do
Rosario, Emmanuel Nicolet, Jordan Niethe, Laurent Dufour, Stephen
Rothwell"
* tag 'powerpc-5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
spufs: fix a crash in spufs_create_root()
powerpc/kvm: Fix kvmppc_vcore->in_guest value in kvmhv_switch_to_host
selftests/powerpc: Fix compile error on tlbie_test due to newer gcc
powerpc/pseries: Remove confusing warning message.
powerpc/64s/radix: Fix build failure with RADIX_MMU=n
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Newer versions of GCC (>= 9) demand that the size of the string to be
copied must be explicitly smaller than the size of the destination.
Thus, the NULL char has to be taken into account on strncpy.
This will avoid the following compiling error:
tlbie_test.c: In function 'main':
tlbie_test.c:639:4: error: 'strncpy' specified bound 100 equals destination size
strncpy(logdir, optarg, LOGDIR_NAME_SIZE);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
Signed-off-by: Desnes A. Nunes do Rosario <desnesn@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191003211010.9711-1-desnesn@linux.ibm.com
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
"Fixes for existing tests and the framework.
Cristian Marussi's patches add the ability to skip targets (tests) and
exclude tests that didn't build from run-list. These patches improve
the Kselftest results. Ability to skip targets helps avoid running
tests that aren't supported in certain environments. As an example,
bpf tests from mainline aren't supported on stable kernels and have
dependency on bleeding edge llvm. Being able to skip bpf on systems
that can't meet this llvm dependency will be helpful.
Kselftest can be built and installed from the main Makefile. This
change help simplify Kselftest use-cases which addresses request from
users.
Kees Cook added per test timeout support to limit individual test
run-time"
* tag 'linux-kselftest-5.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: watchdog: Add command line option to show watchdog_info
selftests: watchdog: Validate optional file argument
selftests/kselftest/runner.sh: Add 45 second timeout per test
kselftest: exclude failed TARGETS from runlist
kselftest: add capability to skip chosen TARGETS
selftests: Add kselftest-all and kselftest-install targets
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With the new ioctl(WDIOC_GETSUPPORT) call in place, add a command
line option to show the watchdog_info.
Suggested-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: George G. Davis <george_davis@mentor.com>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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The newly added optional file argument does not validate if the
file is indeed a watchdog, e.g.:
./watchdog-test -f /dev/zero
Watchdog Ticking Away!
Fix it by confirming that the WDIOC_GETSUPPORT ioctl succeeds.
Fixes: a4864a33f56caa ("selftests: watchdog: Add optional file argument")
Reported-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: George G. Davis <george_davis@mentor.com>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Commit a745f7af3cbd ("selftests/harness: Add 30 second timeout per
test") solves the problem of kselftest_harness.h-using binary tests
possibly hanging forever. However, scripts and other binaries can still
hang forever. This adds a global timeout to each test script run.
To make this configurable (e.g. as needed in the "rtc" test case),
include a new per-test-directory "settings" file (similar to "config")
that can contain kselftest-specific settings. The first recognized field
is "timeout".
Additionally, this splits the reporting for timeouts into a specific
"TIMEOUT" not-ok (and adds exit code reporting in the remaining case).
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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A TARGET which failed to be built/installed should not be included in the
runlist generated inside the run_kselftest.sh script.
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Let the user specify an optional TARGETS skiplist through the new optional
SKIP_TARGETS Makefile variable.
It is easier to skip at will using a reduced and well defined list of
possibly problematic targets with SKIP_TARGETS than to provide a partially
stripped down list of good targets using the usual TARGETS variable.
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Add kselftest-all target to build tests from the top level
Makefile. This is to simplify kselftest use-cases for CI and
distributions where build and test systems are different.
Current kselftest target builds and runs tests on a development
system which is a developer use-case.
Add kselftest-install target to install tests from the top level
Makefile. This is to simplify kselftest use-cases for CI and
distributions where build and test systems are different.
This change addresses requests from developers and testers to add
support for installing kselftest from the main Makefile.
In addition, make the install directory the same when install is
run using "make kselftest-install" or by running kselftest_install.sh.
Also fix the INSTALL_PATH variable conflict between main Makefile and
selftests Makefile.
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Pull networking fixes from David Miller:
1) Fix ieeeu02154 atusb driver use-after-free, from Johan Hovold.
2) Need to validate TCA_CBQ_WRROPT netlink attributes, from Eric
Dumazet.
3) txq null deref in mac80211, from Miaoqing Pan.
4) ionic driver needs to select NET_DEVLINK, from Arnd Bergmann.
5) Need to disable bh during nft_connlimit GC, from Pablo Neira Ayuso.
6) Avoid division by zero in taprio scheduler, from Vladimir Oltean.
7) Various xgmac fixes in stmmac driver from Jose Abreu.
8) Avoid 64-bit division in mlx5 leading to link errors on 32-bit from
Michal Kubecek.
9) Fix bad VLAN check in rtl8366 DSA driver, from Linus Walleij.
10) Fix sleep while atomic in sja1105, from Vladimir Oltean.
11) Suspend/resume deadlock in stmmac, from Thierry Reding.
12) Various UDP GSO fixes from Josh Hunt.
13) Fix slab out of bounds access in tcp_zerocopy_receive(), from Eric
Dumazet.
14) Fix OOPS in __ipv6_ifa_notify(), from David Ahern.
15) Memory leak in NFC's llcp_sock_bind, from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (72 commits)
selftests/net: add nettest to .gitignore
net: qlogic: Fix memory leak in ql_alloc_large_buffers
nfc: fix memory leak in llcp_sock_bind()
sch_dsmark: fix potential NULL deref in dsmark_init()
net: phy: at803x: use operating parameters from PHY-specific status
net: phy: extract pause mode
net: phy: extract link partner advertisement reading
net: phy: fix write to mii-ctrl1000 register
ipv6: Handle missing host route in __ipv6_ifa_notify
net: phy: allow for reset line to be tied to a sleepy GPIO controller
net: ipv4: avoid mixed n_redirects and rate_tokens usage
r8152: Set macpassthru in reset_resume callback
cxgb4:Fix out-of-bounds MSI-X info array access
Revert "ipv6: Handle race in addrconf_dad_work"
net: make sock_prot_memory_pressure() return "const char *"
rxrpc: Fix rxrpc_recvmsg tracepoint
qmi_wwan: add support for Cinterion CLS8 devices
tcp: fix slab-out-of-bounds in tcp_zerocopy_receive()
lib: textsearch: fix escapes in example code
udp: only do GSO if # of segs > 1
...
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nettest is missing from gitignore.
Fixes: acda655fefae ("selftests: Add nettest")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Prior to this change an application sending <= 1MSS worth of data and
enabling UDP GSO would fail if the system had SW GSO enabled, but the
same send would succeed if HW GSO offload is enabled. In addition to this
inconsistency the error in the SW GSO case does not get back to the
application if sending out of a real device so the user is unaware of this
failure.
With this change we only perform GSO if the # of segments is > 1 even
if the application has enabled segmentation. I've also updated the
relevant udpgso selftests.
Fixes: bec1f6f69736 ("udp: generate gso with UDP_SEGMENT")
Signed-off-by: Josh Hunt <johunt@akamai.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull KVM fixes from Paolo Bonzini:
"ARM and x86 bugfixes of all kinds.
The most visible one is that migrating a nested hypervisor has always
been busted on Broadwell and newer processors, and that has finally
been fixed"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (22 commits)
KVM: x86: omit "impossible" pmu MSRs from MSR list
KVM: nVMX: Fix consistency check on injected exception error code
KVM: x86: omit absent pmu MSRs from MSR list
selftests: kvm: Fix libkvm build error
kvm: vmx: Limit guest PMCs to those supported on the host
kvm: x86, powerpc: do not allow clearing largepages debugfs entry
KVM: selftests: x86: clarify what is reported on KVM_GET_MSRS failure
KVM: VMX: Set VMENTER_L1D_FLUSH_NOT_REQUIRED if !X86_BUG_L1TF
selftests: kvm: add test for dirty logging inside nested guests
KVM: x86: fix nested guest live migration with PML
KVM: x86: assign two bits to track SPTE kinds
KVM: x86: Expose XSAVEERPTR to the guest
kvm: x86: Enumerate support for CLZERO instruction
kvm: x86: Use AMD CPUID semantics for AMD vCPUs
kvm: x86: Improve emulation of CPUID leaves 0BH and 1FH
KVM: X86: Fix userspace set invalid CR4
kvm: x86: Fix a spurious -E2BIG in __do_cpuid_func
KVM: LAPIC: Loosen filter for adaptive tuning of lapic_timer_advance_ns
KVM: arm/arm64: vgic: Use the appropriate TRACE_INCLUDE_PATH
arm64: KVM: Kill hyp_alternate_select()
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Fix the following build error from "make TARGETS=kvm kselftest":
libkvm.a(assert.o): relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a PIE object; recompile with -fPIC
This error is seen when build is done from the main Makefile using
kselftest target. In this case KBUILD_CPPFLAGS and CC_OPTION_CFLAGS
are defined.
When build is invoked using:
"make -C tools/testing/selftests/kvm" KBUILD_CPPFLAGS and CC_OPTION_CFLAGS
aren't defined.
There is no need to pass in KBUILD_CPPFLAGS and CC_OPTION_CFLAGS for the
check to determine if --no-pie is necessary, which is the case when these
two aren't defined when "make -C tools/testing/selftests/kvm" runs.
Fix it by simplifying the no-pie-option logic. With this change, both
build variations work.
"make TARGETS=kvm kselftest"
"make -C tools/testing/selftests/kvm"
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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When KVM_GET_MSRS fail the report looks like
==== Test Assertion Failure ====
lib/x86_64/processor.c:1089: r == nmsrs
pid=28775 tid=28775 - Argument list too long
1 0x000000000040a55f: vcpu_save_state at processor.c:1088 (discriminator 3)
2 0x00000000004010e3: main at state_test.c:171 (discriminator 4)
3 0x00007fb8e69223d4: ?? ??:0
4 0x0000000000401287: _start at ??:?
Unexpected result from KVM_GET_MSRS, r: 36 (failed at 194)
and it's not obvious that '194' here is the failed MSR index and that
it's printed in hex. Change that.
Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Check that accesses by nested guests are logged according to the
L1 physical addresses rather than L2.
Most of the patch is really adding EPT support to the testing
framework.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Fix build failure:
undefined reference to `pthread_create'
collect2: error: ld returned 1 exit status
Fix CFLAGS to include pthread correctly.
Fixes: 740378dc7834 ("pidfd: add polling selftests")
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190924195237.30519-1-skhan@linuxfoundation.org
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"A few more tracing fixes:
- Fix a buffer overflow by checking nr_args correctly in probes
- Fix a warning that is reported by clang
- Fix a possible memory leak in error path of filter processing
- Fix the selftest that checks for failures, but wasn't failing
- Minor clean up on call site output of a memory trace event"
* tag 'trace-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
selftests/ftrace: Fix same probe error test
mm, tracing: Print symbol name for call_site in trace events
tracing: Have error path in predicate_parse() free its allocated memory
tracing: Fix clang -Wint-in-bool-context warnings in IF_ASSIGN macro
tracing/probe: Fix to check the difference of nr_args before adding probe
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The "same probe" selftest that tests that adding the same probe fails
doesn't add the same probe and passes, which fails the test.
Fixes: b78b94b82122 ("selftests/ftrace: Update kprobe event error testcase")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
More libnvdimm updates from Dan Williams:
- Complete the reworks to interoperate with powerpc dynamic huge page
sizes
- Fix a crash due to missed accounting for the powerpc 'struct
page'-memmap mapping granularity
- Fix badblock initialization for volatile (DRAM emulated) pmem ranges
- Stop triggering request_key() notifications to userspace when
NVDIMM-security is disabled / not present
- Miscellaneous small fixups
* tag 'libnvdimm-fixes-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
libnvdimm/region: Enable MAP_SYNC for volatile regions
libnvdimm: prevent nvdimm from requesting key when security is disabled
libnvdimm/region: Initialize bad block for volatile namespaces
libnvdimm/nfit_test: Fix acpi_handle redefinition
libnvdimm/altmap: Track namespace boundaries in altmap
libnvdimm: Fix endian conversion issues
libnvdimm/dax: Pick the right alignment default when creating dax devices
powerpc/book3s64: Export has_transparent_hugepage() related functions.
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After commit 62974fc389b3 ("libnvdimm: Enable unit test infrastructure
compile checks"), clang warns:
In file included from
../drivers/nvdimm/../../tools/testing/nvdimm/test/iomap.c:15:
../drivers/nvdimm/../../tools/testing/nvdimm/test/nfit_test.h:206:15:
warning: redefinition of typedef 'acpi_handle' is a C11 feature
[-Wtypedef-redefinition]
typedef void *acpi_handle;
^
../include/acpi/actypes.h:424:15: note: previous definition is here
typedef void *acpi_handle; /* Actually a ptr to a NS Node */
^
1 warning generated.
The include chain:
iomap.c ->
linux/acpi.h ->
acpi/acpi.h ->
acpi/actypes.h
nfit_test.h
Avoid this by including linux/acpi.h in nfit_test.h, which allows us to
remove both the typedef and the forward declaration of acpi_object.
Link: https://github.com/ClangBuiltLinux/linux/issues/660
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20190918042148.77553-1-natechancellor@gmail.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Pull networking fixes from David Miller:
1) Sanity check URB networking device parameters to avoid divide by
zero, from Oliver Neukum.
2) Disable global multicast filter in NCSI, otherwise LLDP and IPV6
don't work properly. Longer term this needs a better fix tho. From
Vijay Khemka.
3) Small fixes to selftests (use ping when ping6 is not present, etc.)
from David Ahern.
4) Bring back rt_uses_gateway member of struct rtable, it's semantics
were not well understood and trying to remove it broke things. From
David Ahern.
5) Move usbnet snaity checking, ignore endpoints with invalid
wMaxPacketSize. From Bjørn Mork.
6) Missing Kconfig deps for sja1105 driver, from Mao Wenan.
7) Various small fixes to the mlx5 DR steering code, from Alaa Hleihel,
Alex Vesker, and Yevgeny Kliteynik
8) Missing CAP_NET_RAW checks in various places, from Ori Nimron.
9) Fix crash when removing sch_cbs entry while offloading is enabled,
from Vinicius Costa Gomes.
10) Signedness bug fixes, generally in looking at the result given by
of_get_phy_mode() and friends. From Dan Crapenter.
11) Disable preemption around BPF_PROG_RUN() calls, from Eric Dumazet.
12) Don't create VRF ipv6 rules if ipv6 is disabled, from David Ahern.
13) Fix quantization code in tcp_bbr, from Kevin Yang.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (127 commits)
net: tap: clean up an indentation issue
nfp: abm: fix memory leak in nfp_abm_u32_knode_replace
tcp: better handle TCP_USER_TIMEOUT in SYN_SENT state
sk_buff: drop all skb extensions on free and skb scrubbing
tcp_bbr: fix quantization code to not raise cwnd if not probing bandwidth
mlxsw: spectrum_flower: Fail in case user specifies multiple mirror actions
Documentation: Clarify trap's description
mlxsw: spectrum: Clear VLAN filters during port initialization
net: ena: clean up indentation issue
NFC: st95hf: clean up indentation issue
net: phy: micrel: add Asym Pause workaround for KSZ9021
net: socionext: ave: Avoid using netdev_err() before calling register_netdev()
ptp: correctly disable flags on old ioctls
lib: dimlib: fix help text typos
net: dsa: microchip: Always set regmap stride to 1
nfp: flower: fix memory leak in nfp_flower_spawn_vnic_reprs
nfp: flower: prevent memory leak in nfp_flower_spawn_phy_reprs
net/sched: Set default of CONFIG_NET_TC_SKB_EXT to N
vrf: Do not attempt to create IPv6 mcast rule if IPv6 is disabled
net: sched: sch_sfb: don't call qdisc_put() while holding tree lock
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When a port is created, its VLAN filters are not cleared by the
firmware. This causes tagged packets to be later dropped by the ingress
STP filters, which default to DISCARD state.
The above did not matter much until commit b5ce611fd96e ("mlxsw:
spectrum: Add devlink-trap support") where we exposed the drop reason to
users.
Without this patch, the drop reason users will see is not consistent. If
a port is enslaved to a VLAN-aware bridge and a packet with an invalid
VLAN tries to ingress the bridge, it will be dropped due to ingress STP
filter. If the VLAN is later enabled and then disabled, the packet will
be dropped by the ingress VLAN filter despite the above being a
seemingly NOP operation.
Fix this by clearing all the VLAN filters during port initialization.
Adjust the test accordingly.
Fixes: b5ce611fd96e ("mlxsw: spectrum: Add devlink-trap support")
Reported-by: Alex Kushnarov <alexanderk@mellanox.com>
Tested-by: Alex Kushnarov <alexanderk@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Daniel Borkmann says:
====================
pull-request: bpf 2019-09-27
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix libbpf's BTF dumper to not skip anonymous enum definitions, from Andrii.
2) Fix BTF verifier issues when handling the BTF of vmlinux, from Alexei.
3) Fix nested calls into bpf_event_output() from TCP sockops BPF
programs, from Allan.
4) Fix NULL pointer dereference in AF_XDP's xsk map creation when
allocation fails, from Jonathan.
5) Remove unneeded 64 byte alignment requirement of the AF_XDP UMEM
headroom, from Bjorn.
6) Remove unused XDP_OPTIONS getsockopt() call which results in an error
on older kernels, from Toke.
7) Fix a client/server race in tcp_rtt BPF kselftest case, from Stanislav.
8) Fix indentation issue in BTF's btf_enum_check_kflag_member(), from Colin.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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BTF-to-C converter previously skipped anonymous enums in an assumption
that those are embedded in struct's field definitions. This is not
always the case and a lot of kernel constants are defined as part of
anonymous enums. This change fixes the logic by eagerly marking all
types as either referenced by any other type or not. This is enough to
distinguish two classes of anonymous enums and emit previously omitted
enum definitions.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20190925203745.3173184-1-andriin@fb.com
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Some recent changes in latest Clang started causing the following
warning when unrolling strobemeta test case main loop:
progs/strobemeta.h:416:2: warning: loop not unrolled: the optimizer was
unable to perform the requested transformation; the transformation might
be disabled or specified as part of an unsupported transformation
ordering [-Wpass-failed=transform-warning]
This patch simplifies loop's exit condition to depend only on constant
max iteration number (STROBE_MAX_MAP_ENTRIES), while moving early
termination logic inside the loop body. The changes are equivalent from
program logic standpoint, but fixes the warning. It also appears to
improve generated BPF code, as it fixes previously failing non-unrolled
strobemeta test cases.
Cc: Alexei Starovoitov <ast@fb.com>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Remove no longer used variables and avoid compiler warnings.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Some compilers emit warning for potential uninitialized next_id usage.
The code is correct, but control flow is too complicated for some
compilers to figure this out. Re-initialize next_id to satisfy
compiler.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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This is the same problem I found earlier in test_sockopt_inherit:
there is a race between server thread doing accept() and client
thread doing connect(). Let's explicitly synchronize them via
pthread conditional variable.
v2:
* don't exit from server_thread without signaling condvar,
fixes possible issue where main() would wait forever (Andrii Nakryiko)
Fixes: b55873984dab ("selftests/bpf: test BPF_SOCK_OPS_RTT_CB")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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The xsk_socket__create() function fails and returns an error if it cannot
get the XDP_OPTIONS through getsockopt(). However, support for XDP_OPTIONS
was not added until kernel 5.3, so this means that creating XSK sockets
always fails on older kernels.
Since the option is just used to set the zero-copy flag in the xsk struct,
and that flag is not really used for anything yet, just remove the
getsockopt() call until a proper use for it is introduced.
Suggested-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Commit 7d9e5f422150 removed references from certain dsts, but accounting
for this never translated down into the fib6 suppression code. This bug
was triggered by WireGuard users who use wg-quick(8), which uses the
"suppress-prefix" directive to ip-rule(8) for routing all of their
internet traffic without routing loops. The test case added here
causes the reference underflow by causing packets to evaluate a suppress
rule.
Fixes: 7d9e5f422150 ("ipv6: convert major tx path to use RT6_LOOKUP_F_DST_NOREF")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Acked-by: Wei Wang <weiwan@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Some distributions (e.g., debian buster) do not install ping6. Re-use
the hook in pmtu.sh to detect this and fallback to ping.
Fixes: 735ab2f65dce ("selftests: Add test with multiple prefixes using single nexthop")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
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Some distributions (e.g., debian buster) do not install ping6. Re-use
the hook in pmtu.sh to detect this and fallback to ping.
Fixes: a0e11da78f48 ("fib_tests: Add tests for metrics on routes")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
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Add some test cases to allow the fib_nexthops.sh test code
to test the flushing of nexthops based upon the proto passed
in upon creation of the nexthop group.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"An assortment of fixes that were either missed by me, or didn't arrive
quite in time for the first v5.4 pull.
- Most notable is a fix for an issue with tlbie (broadcast TLB
invalidation) on Power9, when using the Radix MMU. The tlbie can
race with an mtpid (move to PID register, essentially MMU context
switch) on another thread of the core, which can cause stores to
continue to go to a page after it's unmapped.
- A fix in our KVM code to add a missing barrier, the lack of which
has been observed to cause missed IPIs and subsequently stuck CPUs
in the host.
- A change to the way we initialise PCR (Processor Compatibility
Register) to make it forward compatible with future CPUs.
- On some older PowerVM systems our H_BLOCK_REMOVE support could
oops, fix it to detect such systems and fallback to the old
invalidation method.
- A fix for an oops seen on some machines when using KASAN on 32-bit.
- A handful of other minor fixes, and two new selftests.
Thanks to: Alistair Popple, Aneesh Kumar K.V, Christophe Leroy,
Gustavo Romero, Joel Stanley, Jordan Niethe, Laurent Dufour, Michael
Roth, Oliver O'Halloran"
* tag 'powerpc-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/eeh: Fix eeh eeh_debugfs_break_device() with SRIOV devices
powerpc/nvdimm: use H_SCM_QUERY hcall on H_OVERLAP error
powerpc/nvdimm: Use HCALL error as the return value
selftests/powerpc: Add test case for tlbie vs mtpidr ordering issue
powerpc/mm: Fixup tlbie vs mtpidr/mtlpidr ordering issue on POWER9
powerpc/book3s64/radix: Rename CPU_FTR_P9_TLBIE_BUG feature flag
powerpc/book3s64/mm: Don't do tlbie fixup for some hardware revisions
powerpc/pseries: Call H_BLOCK_REMOVE when supported
powerpc/pseries: Read TLB Block Invalidate Characteristics
KVM: PPC: Book3S HV: use smp_mb() when setting/clearing host_ipi flag
powerpc/mm: Fix an Oops in kasan_mmu_init()
powerpc/mm: Add a helper to select PAGE_KERNEL_RO or PAGE_READONLY
powerpc/64s: Set reserved PCR bits
powerpc: Fix definition of PCR bits to work with old binutils
powerpc/book3s64/radix: Remove WARN_ON in destroy_context()
powerpc/tm: Add tm-poison test
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Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
[mpe: Some minor fixes to make it build]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190924035254.24612-4-aneesh.kumar@linux.ibm.com
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