If the event 'probe_libc:inet_pton' already exists, this test fails and
deletes the existing event before exiting. This will then pass for any
subsequent executions.
Instead of skipping to deleting the existing event because of failing to
add a new event, a duplicate event is now created and the script
continues with the usual checks. Only the new duplicate event that is
created at the beginning of the test is deleted as a part of the
cleanups in the end. All existing events remain as it is.
This can be observed on a powerpc64 system running Fedora 27 as shown
below.
# perf probe -x /usr/lib64/power8/libc-2.26.so -a inet_pton
Added new event:
probe_libc:inet_pton (on inet_pton in /usr/lib64/power8/libc-2.26.so)
Before:
# perf test -v "probe libc's inet_pton & backtrace it with ping"
62: probe libc's inet_pton & backtrace it with ping :
--- start ---
test child forked, pid 21302
test child finished with -1
---- end ----
probe libc's inet_pton & backtrace it with ping: FAILED!
# perf probe --list
After:
# perf test -v "probe libc's inet_pton & backtrace it with ping"
62: probe libc's inet_pton & backtrace it with ping :
--- start ---
test child forked, pid 21490
ping 21513 [035] 39357.565561: probe_libc:inet_pton_1: (7fffa4c623b0)
7fffa4c623b0 __GI___inet_pton+0x0 (/usr/lib64/power8/libc-2.26.so)
7fffa4c190dc gaih_inet.constprop.7+0xf4c (/usr/lib64/power8/libc-2.26.so)
7fffa4c19c4c getaddrinfo+0x15c (/usr/lib64/power8/libc-2.26.so)
111d93c20 main+0x3e0 (/usr/bin/ping)
test child finished with 0
---- end ----
probe libc's inet_pton & backtrace it with ping: Ok
# perf probe --list
probe_libc:inet_pton (on __inet_pton@resolv/inet_pton.c in /usr/lib64/power8/libc-2.26.so)
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kim Phillips <kim.phillips@arm.com>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/e11fecff96e6cf4c65cdbd9012463513d7b8356c.1530724939.git.sandipan@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
If there is a mismatch in the perf script output, this test fails and
exits before the event and temporary files created during its execution
are cleaned up.
This can be observed on a powerpc64 system running Fedora 27 as shown
below.
# perf test -v "probe libc's inet_pton & backtrace it with ping"
62: probe libc's inet_pton & backtrace it with ping :
--- start ---
test child forked, pid 18655
ping 18674 [013] 24511.496995: probe_libc:inet_pton: (7fffa6b423b0)
7fffa6b423b0 __GI___inet_pton+0x0 (/usr/lib64/power8/libc-2.26.so)
7fffa6af90dc gaih_inet.constprop.7+0xf4c (/usr/lib64/power8/libc-2.26.so)
FAIL: expected backtrace entry "getaddrinfo\+0x[[:xdigit:]]+[[:space:]]\(/usr/lib64/power8/libc-2.26.so\)$" got "7fffa6af90dc gaih_inet.constprop.7+0xf4c (/usr/lib64/power8/libc-2.26.so)"
test child finished with -1
---- end ----
probe libc's inet_pton & backtrace it with ping: FAILED!
# ls /tmp/expected.* /tmp/perf.data.* /tmp/perf.script.*
/tmp/expected.u31 /tmp/perf.data.Pki /tmp/perf.script.Bhs
# perf probe --list
probe_libc:inet_pton (on __inet_pton@resolv/inet_pton.c in /usr/lib64/power8/libc-2.26.so)
Cleanup of the event and the temporary files are now ensured by allowing
the cleanup code to be executed even if the lines from the backtrace do
not match their expected patterns instead of simply exiting from the
point of failure.
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kim Phillips <kim.phillips@arm.com>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/ce9fb091dd3028fba8749a1a267cfbcb264bbfb1.1530724939.git.sandipan@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
For powerpc64, this test currently fails due to a mismatch in the
expected output.
This can be observed on a powerpc64le system running Fedora 27 as shown
below.
# perf test -v "probe libc's inet_pton & backtrace it with ping"
Before:
62: probe libc's inet_pton & backtrace it with ping :
--- start ---
test child forked, pid 23948
ping 23965 [003] 71136.075084: probe_libc:inet_pton: (7fff996aaf28)
7fff996aaf28 __GI___inet_pton+0x8 (/usr/lib64/libc-2.26.so)
7fff9965fa54 gaih_inet.constprop.7+0xf44 (/usr/lib64/libc-2.26.so)
FAIL: expected backtrace entry 2 "getaddrinfo\+0x[[:xdigit:]]+[[:space:]]\(/usr/lib64/libc-2.26.so\)$" got "7fff9965fa54 gaih_inet.constprop.7+0xf44 (/usr/lib64/libc-2.26.so)"
test child finished with -1
---- end ----
probe libc's inet_pton & backtrace it with ping: FAILED!
After:
62: probe libc's inet_pton & backtrace it with ping :
--- start ---
test child forked, pid 24638
ping 24655 [001] 71208.525396: probe_libc:inet_pton: (7fffa245af28)
7fffa245af28 __GI___inet_pton+0x8 (/usr/lib64/libc-2.26.so)
7fffa240fa54 gaih_inet.constprop.7+0xf44 (/usr/lib64/libc-2.26.so)
7fffa24105b4 getaddrinfo+0x164 (/usr/lib64/libc-2.26.so)
138d52d70 main+0x3e0 (/usr/bin/ping)
test child finished with 0
---- end ----
probe libc's inet_pton & backtrace it with ping: Ok
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kim Phillips <kim.phillips@arm.com>
Cc: Maynard Johnson <maynard@us.ibm.com>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Fixes: e07d585e2454 ("perf tests: Switch trace+probe_libc_inet_pton to use record")
Link: http://lkml.kernel.org/r/49621ec5f37109f0655e5a8c32287ad68d85a1e5.1530724939.git.sandipan@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
For powerpc64, perf will filter out the second entry in the callchain,
i.e. the LR value, if the return address of the function corresponding
to the probed location has already been saved on its caller's stack.
The state of the return address is determined using debug information.
At any point within a function, if the return address is already saved
somewhere, a DWARF expression can tell us about its location. If the
return address in still in LR only, no DWARF expression would exist.
Typically, the instructions in a function's prologue first copy the LR
value to R0 and then pushes R0 on to the stack. If LR has already been
copied to R0 but R0 is yet to be pushed to the stack, we can still get a
DWARF expression that says that the return address is in R0. This is
indicating that getting a DWARF expression for the return address does
not guarantee the fact that it has already been saved on the stack.
This can be observed on a powerpc64le system running Fedora 27 as shown
below.
# objdump -d /usr/lib64/libc-2.26.so | less
...
000000000015af20 <inet_pton>:
15af20: 0b 00 4c 3c addis r2,r12,11
15af24: e0 c1 42 38 addi r2,r2,-15904
15af28: a6 02 08 7c mflr r0
15af2c: f0 ff c1 fb std r30,-16(r1)
15af30: f8 ff e1 fb std r31,-8(r1)
15af34: 78 1b 7f 7c mr r31,r3
15af38: 78 23 83 7c mr r3,r4
15af3c: 78 2b be 7c mr r30,r5
15af40: 10 00 01 f8 std r0,16(r1)
15af44: c1 ff 21 f8 stdu r1,-64(r1)
15af48: 28 00 81 f8 std r4,40(r1)
...
# readelf --debug-dump=frames-interp /usr/lib64/libc-2.26.so | less
...
00027024 0000000000000024 00027028 FDE cie=00000000 pc=000000000015af20..000000000015af88
LOC CFA r30 r31 ra
000000000015af20 r1+0 u u u
000000000015af34 r1+0 c-16 c-8 r0
000000000015af48 r1+64 c-16 c-8 c+16
000000000015af5c r1+0 c-16 c-8 c+16
000000000015af78 r1+0 u u
...
# perf probe -x /usr/lib64/libc-2.26.so -a inet_pton+0x18
# perf record -e probe_libc:inet_pton -g ping -6 -c 1 ::1
# perf script
Before:
ping 2829 [005] 512917.460174: probe_libc:inet_pton: (7fff7e2baf38)
7fff7e2baf38 __GI___inet_pton+0x18 (/usr/lib64/libc-2.26.so)
7fff7e2705b4 getaddrinfo+0x164 (/usr/lib64/libc-2.26.so)
12f152d70 _init+0xbfc (/usr/bin/ping)
7fff7e1836a0 generic_start_main.isra.0+0x140 (/usr/lib64/libc-2.26.so)
7fff7e183898 __libc_start_main+0xb8 (/usr/lib64/libc-2.26.so)
0 [unknown] ([unknown])
After:
ping 2829 [005] 512917.460174: probe_libc:inet_pton: (7fff7e2baf38)
7fff7e2baf38 __GI___inet_pton+0x18 (/usr/lib64/libc-2.26.so)
7fff7e26fa54 gaih_inet.constprop.7+0xf44 (/usr/lib64/libc-2.26.so)
7fff7e2705b4 getaddrinfo+0x164 (/usr/lib64/libc-2.26.so)
12f152d70 _init+0xbfc (/usr/bin/ping)
7fff7e1836a0 generic_start_main.isra.0+0x140 (/usr/lib64/libc-2.26.so)
7fff7e183898 __libc_start_main+0xb8 (/usr/lib64/libc-2.26.so)
0 [unknown] ([unknown])
Reported-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Maynard Johnson <maynard@us.ibm.com>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/66e848a7bdf2d43b39210a705ff6d828a0865661.1530724939.git.sandipan@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Add missing documentation for --desc and --debug options to the 'perf
list' man page.
Signed-off-by: Sangwon Hong <qpakzk@gmail.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20180717110738.10779-1-qpakzk@gmail.com
[ Clarify that --desc is by default active ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
With commit eca0fa28cd ("perf record: Provide detailed information on
s390 CPU") s390 platform provides detailed type/model/capacity
information in the CPU identifier string instead of just "IBM/S390".
This breaks 'perf kvm' support which uses hard coded string IBM/S390 to
compare with the CPU identifier string. Fix this by changing the
comparison.
Reported-by: Stefan Raspl <raspl@linux.ibm.com>
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Tested-by: Stefan Raspl <raspl@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: stable@vger.kernel.org
Fixes: eca0fa28cd ("perf record: Provide detailed information on s390 CPU")
Link: http://lkml.kernel.org/r/20180712070936.67547-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The 'perf stat' command line flag -T to display transaction counters is
currently supported for x86 only.
Add support for s390. It is based on the metrics flag -M transaction
using the architecture dependent JSON files. This requires a metric
named "transaction" in the JSON files for the platform.
Introduce a new function metricgroup__has_metric() to check for the
existence of a metric_name transaction.
As suggested by Andi Kleen, this is the new approach to support
transactions counters. Other architectures will follow.
Output before:
[root@p23lp27 perf]# ./perf stat -T -- sleep 1
Cannot set up transaction events
[root@p23lp27 perf]#
Output after:
[root@s35lp76 perf]# ./perf stat -T -- ~/mytesttx 1 >/tmp/111
Performance counter stats for '/root/mytesttx 1':
1 tx_c_tend # 13.0 transaction
1 tx_nc_tend
11 tx_nc_tabort
0 tx_c_tabort_special
0 tx_c_tabort_no_special
0.001070109 seconds time elapsed
[root@s35lp76 perf]#
Suggested-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Link: http://lkml.kernel.org/r/20180626071701.58190-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Correct the support of detailed/verbose PMU event description by using
the "Unit": keyword in the json files to address event names refering to
the /sys/devices/cpum_[cs]f devices.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Link: http://lkml.kernel.org/r/20180621080452.61012-2-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This reverts commit 038586c343.
Fix the support of detailed/verbose PMU event description by using the
"Unit": keyword in the json files to address event names refering to the
/sys/devices/cpum_[cs]f devices.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Link: http://lkml.kernel.org/r/20180621080452.61012-1-tmricht@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
If the instruction sample failure has happened, it isn't necessary to
execute to the end of the function cs_etm__flush(). This commit is to
bail out immediately and return the error code.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kim Phillips <kim.phillips@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Robert Walker <robert.walker@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1529298599-3876-3-git-send-email-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This patch introduces invalid address macro and uses it to replace dummy
value '0xdeadbeefdeadbeefUL'.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kim Phillips <kim.phillips@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Robert Walker <robert.walker@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1529298599-3876-2-git-send-email-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
We want to allow having mixed events with/without callchains, not
using a global flag to show callchains, but allowing supressing
callchains when they are present.
So invert the logic of the last parameter to hists__fprint() to
that effect.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-ohqyisr6qge79qa95ojslptx@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Naveen has been contributing consistently reviewing and hardening
kprobes for some time now. I have not been able to do the same due
to other commitments.
Signed-off-by: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: akpm@linux-foundation.org
Cc: mhiramat@kernel.org
Link: http://lkml.kernel.org/r/153180735790.1914.15547706781664285286.stgit@thinktux
Signed-off-by: Ingo Molnar <mingo@kernel.org>
- fix a regression in 4.18 that causes a memory leak on probe failure
(Keith Bush)
- fix a deadlock in the passthrough ioctl code (Scott Bauer)
- don't enable AENs if not supported (Weiping Zhang)
- fix an old regression in metadata handling in the passthrough ioctl
code (Roland Dreier)
-----BEGIN PGP SIGNATURE-----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=PvXH
-----END PGP SIGNATURE-----
Merge tag 'nvme-for-4.18' of git://git.infradead.org/nvme
Pull NVMe fixes from Christoph Hellwig:
- fix a regression in 4.18 that causes a memory leak on probe failure
(Keith Bush)
- fix a deadlock in the passthrough ioctl code (Scott Bauer)
- don't enable AENs if not supported (Weiping Zhang)
- fix an old regression in metadata handling in the passthrough ioctl
code (Roland Dreier)
* tag 'nvme-for-4.18' of git://git.infradead.org/nvme:
nvme: fix handling of metadata_len for NVME_IOCTL_IO_CMD
nvme: don't enable AEN if not supported
nvme: ensure forward progress during Admin passthru
nvme-pci: fix memory leak on probe failure
Pull vfs fixes from Al Viro:
"Fix several places that screw up cleanups after failures halfway
through opening a file (one open-coding filp_clone_open() and getting
it wrong, two misusing alloc_file()). That part is -stable fodder from
the 'work.open' branch.
And Christoph's regression fix for uapi breakage in aio series;
include/uapi/linux/aio_abi.h shouldn't be pulling in the kernel
definition of sigset_t, the reason for doing so in the first place had
been bogus - there's no need to expose struct __aio_sigset in
aio_abi.h at all"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
aio: don't expose __aio_sigset in uapi
ocxlflash_getfile(): fix double-iput() on alloc_file() failures
cxl_getfile(): fix double-iput() on alloc_file() failures
drm_mode_create_lease_ioctl(): fix open-coded filp_clone_open()
kernel_wait4() expects a userland address for status - it's only
rusage that goes as a kernel one (and needs a copyout afterwards)
[ Also, fix the prototype of kernel_wait4() to have that __user
annotation - Linus ]
Fixes: 92ebce5ac5 ("osf_wait4: switch to kernel_wait4()")
Cc: stable@kernel.org # v4.13+
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Fix interrupt type on ethernet switch for i.MX-based RDU2
- GPC on i.MX exposed too large a register window which resulted in
userspace being able to crash the machine.
- Fixup of bad merge resolution moving GPIO DT nodes under pinctrl
on droid4.
-----BEGIN PGP SIGNATURE-----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=VFnX
-----END PGP SIGNATURE-----
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
- Fix interrupt type on ethernet switch for i.MX-based RDU2
- GPC on i.MX exposed too large a register window which resulted in
userspace being able to crash the machine.
- Fixup of bad merge resolution moving GPIO DT nodes under pinctrl on
droid4.
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: dts: imx6: RDU2: fix irq type for mv88e6xxx switch
soc: imx: gpc: restrict register range for regmap access
ARM: dts: omap4-droid4: fix dts w.r.t. pwm
Pull x86 fix from Ingo Molnar:
"A single fix for a MCE-polling regression, which prevented the
disabling of polling"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/MCE: Remove min interval polling limitation
Pull x86 pti fixes from Ingo Molnar:
"An APM fix, and a BTS hardware-tracing fix related to PTI changes"
* 'x86-pti-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/apm: Don't access __preempt_count with zeroed fs
x86/events/intel/ds: Fix bts_interrupt_threshold alignment
Pull scheduler fixes from Ingo Molnar:
"Two fixes: a stop-machine preemption fix and a SCHED_DEADLINE fix"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/deadline: Fix switched_from_dl() warning
stop_machine: Disable preemption when waking two stopper threads
Pull core kernel fixes from Ingo Molnar:
"This is mostly the copy_to_user_mcsafe() related fixes from Dan
Williams, and an ORC fix for Clang"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/asm/memcpy_mcsafe: Fix copy_to_user_mcsafe() exception handling
lib/iov_iter: Fix pipe handling in _copy_to_iter_mcsafe()
lib/iov_iter: Document _copy_to_iter_flushcache()
lib/iov_iter: Document _copy_to_iter_mcsafe()
objtool: Use '.strtab' if '.shstrtab' doesn't exist, to support ORC tables on Clang
Two regression fixes, one for xmon disassembly formatting and the other to fix
the E500 build.
Two commits to fix a potential security issue in the VFIO code under obscure
circumstances.
And finally a fix to the Power9 idle code to restore SPRG3, which is user
visible and used for sched_getcpu().
Thanks to:
Alexey Kardashevskiy, David Gibson. Gautham R. Shenoy, James Clarke.
-----BEGIN PGP SIGNATURE-----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=Sfmf
-----END PGP SIGNATURE-----
Merge tag 'powerpc-4.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Two regression fixes, one for xmon disassembly formatting and the
other to fix the E500 build.
Two commits to fix a potential security issue in the VFIO code under
obscure circumstances.
And finally a fix to the Power9 idle code to restore SPRG3, which is
user visible and used for sched_getcpu().
Thanks to: Alexey Kardashevskiy, David Gibson. Gautham R. Shenoy,
James Clarke"
* tag 'powerpc-4.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/powernv: Fix save/restore of SPRG3 on entry/exit from stop (idle)
powerpc/Makefile: Assemble with -me500 when building for E500
KVM: PPC: Check if IOMMU page is contained in the pinned physical page
vfio/spapr: Use IOMMU pageshift rather than pagesize
powerpc/xmon: Fix disassembly since printf changes
-----BEGIN PGP SIGNATURE-----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=f7eB
-----END PGP SIGNATURE-----
Merge tag 'for-4.18-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fix from David Sterba:
"A fix of a corruption regarding fsync and clone, under some very
specific conditions explained in the patch.
The fix is marked for stable 3.16+ so I'd like to get it merged now
given the impact"
* tag 'for-4.18-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
Btrfs: fix file data corruption after cloning a range and fsync
Like vm_area_dup(), it initializes the anon_vma_chain head, and the
basic mm pointer.
The rest of the fields end up being different for different users,
although the plan is to also initialize the 'vm_ops' field to a dummy
entry.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
.. and re-initialize th eanon_vma_chain head.
This removes some boiler-plate from the users, and also makes it clear
why it didn't need use the 'zalloc()' version.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The vm_area_struct is one of the most fundamental memory management
objects, but the management of it is entirely open-coded evertwhere,
ranging from allocation and freeing (using kmem_cache_[z]alloc and
kmem_cache_free) to initializing all the fields.
We want to unify this in order to end up having some unified
initialization of the vmas, and the first step to this is to at least
have basic allocation functions.
Right now those functions are literally just wrappers around the
kmem_cache_*() calls. This is a purely mechanical conversion:
# new vma:
kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL) -> vm_area_alloc()
# copy old vma
kmem_cache_alloc(vm_area_cachep, GFP_KERNEL) -> vm_area_dup(old)
# free vma
kmem_cache_free(vm_area_cachep, vma) -> vm_area_free(vma)
to the point where the old vma passed in to the vm_area_dup() function
isn't even used yet (because I've left all the old manual initialization
alone).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Merge fixes from Andrew Morton:
"5 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm: memcg: fix use after free in mem_cgroup_iter()
mm/huge_memory.c: fix data loss when splitting a file pmd
fat: fix memory allocation failure handling of match_strdup()
MAINTAINERS: Peter has moved
mm/memblock: add missing include <linux/bootmem.h>
It was reported that a kernel crash happened in mem_cgroup_iter(), which
can be triggered if the legacy cgroup-v1 non-hierarchical mode is used.
Unable to handle kernel paging request at virtual address 6b6b6b6b6b6b8f
......
Call trace:
mem_cgroup_iter+0x2e0/0x6d4
shrink_zone+0x8c/0x324
balance_pgdat+0x450/0x640
kswapd+0x130/0x4b8
kthread+0xe8/0xfc
ret_from_fork+0x10/0x20
mem_cgroup_iter():
......
if (css_tryget(css)) <-- crash here
break;
......
The crashing reason is that mem_cgroup_iter() uses the memcg object whose
pointer is stored in iter->position, which has been freed before and
filled with POISON_FREE(0x6b).
And the root cause of the use-after-free issue is that
invalidate_reclaim_iterators() fails to reset the value of iter->position
to NULL when the css of the memcg is released in non- hierarchical mode.
Link: http://lkml.kernel.org/r/1531994807-25639-1-git-send-email-jing.xia@unisoc.com
Fixes: 6df38689e0 ("mm: memcontrol: fix possible memcg leak due to interrupted reclaim")
Signed-off-by: Jing Xia <jing.xia.mail@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: <chunyan.zhang@unisoc.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
__split_huge_pmd_locked() must check if the cleared huge pmd was dirty,
and propagate that to PageDirty: otherwise, data may be lost when a huge
tmpfs page is modified then split then reclaimed.
How has this taken so long to be noticed? Because there was no problem
when the huge page is written by a write system call (shmem_write_end()
calls set_page_dirty()), nor when the page is allocated for a write fault
(fault_dirty_shared_page() calls set_page_dirty()); but when allocated for
a read fault (which MAP_POPULATE simulates), no set_page_dirty().
Link: http://lkml.kernel.org/r/alpine.LSU.2.11.1807111741430.1106@eggly.anvils
Fixes: d21b9e57c7 ("thp: handle file pages in split_huge_pmd()")
Signed-off-by: Hugh Dickins <hughd@google.com>
Reported-by: Ashwin Chaugule <ashwinch@google.com>
Reviewed-by: Yang Shi <yang.shi@linux.alibaba.com>
Reviewed-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: <stable@vger.kernel.org> [4.8+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In parse_options(), if match_strdup() failed, parse_options() leaves
opts->iocharset in unexpected state (i.e. still pointing the freed
string). And this can be the cause of double free.
To fix, this initialize opts->iocharset always when freeing.
Link: http://lkml.kernel.org/r/8736wp9dzc.fsf@mail.parknet.co.jp
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Reported-by: syzbot+90b8e10515ae88228a92@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Update my E-mail address in the MAINTAINERS file.
Link: http://lkml.kernel.org/r/20180710144702.1308-1-peter.senna@gmail.com
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Martyn Welch <martyn.welch@collabora.co.uk>
Cc: David S. Miller <davem@davemloft.net>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Martin Donnelly <martin.donnelly@ge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 26f09e9b3a ("mm/memblock: add memblock memory allocation apis")
introduced two new function definitions:
memblock_virt_alloc_try_nid_nopanic()
memblock_virt_alloc_try_nid()
and commit ea1f5f3712 ("mm: define memblock_virt_alloc_try_nid_raw")
introduced the following function definition:
memblock_virt_alloc_try_nid_raw()
This commit adds an include of header file <linux/bootmem.h> to provide
the missing function prototypes. This silences the following gcc warning
(W=1):
mm/memblock.c:1334:15: warning: no previous prototype for `memblock_virt_alloc_try_nid_raw' [-Wmissing-prototypes]
mm/memblock.c:1371:15: warning: no previous prototype for `memblock_virt_alloc_try_nid_nopanic' [-Wmissing-prototypes]
mm/memblock.c:1407:15: warning: no previous prototype for `memblock_virt_alloc_try_nid' [-Wmissing-prototypes]
Also adds #ifdef blockers to prevent compilation failure on mips/ia64
where CONFIG_NO_BOOTMEM=n as could be seen in commit commit 6cc22dc08a
("revert "mm/memblock: add missing include <linux/bootmem.h>"").
Because Makefile already does:
obj-$(CONFIG_HAVE_MEMBLOCK) += memblock.o
The #ifdef has been simplified from:
#if defined(CONFIG_HAVE_MEMBLOCK) && defined(CONFIG_NO_BOOTMEM)
to simply:
#if defined(CONFIG_NO_BOOTMEM)
Link: http://lkml.kernel.org/r/20180626184422.24974-1-malat@debian.org
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Suggested-by: Tony Luck <tony.luck@intel.com>
Suggested-by: Michal Hocko <mhocko@kernel.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
the data and metadata area. This allows userspace tools (e.g. LVM2)
to place a header and metadata at the front of the writecache device
for its use.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJbUjNdAAoJEMUj8QotnQNa3NsH/RfalVY4y+Y8TSyfz20oHHcf
Gxr0dMKQPYYeuAMxqcVyn9IhowZpcoBNbR050NEDpBjsE2augf0t2Ixl08gOn6Hx
QJECHxqMQsIcSnvQLqqf4DGXU78WiacbYlLXI+7fnvddWrV+VRALSDxiuQAbCKue
Oj/LSsRh/zhf9ruMWURrHpy8k/GOEZzrhgH3as6OZcYgLYaakv3yGY42vPmSbIj+
RXmTzfJzxxxkWXAg6IIqawFlxZunLkcOhd1jSAE46Gh8NGe4jbP6U3AprMyp2yyB
E388aggr7CgZqsCWp84EcAWa30f0G9+XlUFqB4ydQO/Mp39WH3VX2r5QBLBo2+8=
=BN6D
-----END PGP SIGNATURE-----
Merge tag 'for-4.18/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fix from Mike Snitzer:
"Fix DM writecache target to allow an optional offset to the start of
the data and metadata area.
This allows userspace tools (e.g. LVM2) to place a header and metadata
at the front of the writecache device for its use"
* tag 'for-4.18/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm writecache: support optional offset for start of device
- A fix for i.MX6 RDU2 board on the wrong IRQ type of Marvell switch,
which might result in a race condition in the interrupt handler and
cause the OS to miss all future events.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJbUVhyAAoJEFBXWFqHsHzOss4H/3nHBKfbjC0twTK3J4ou3jDO
3JboghAt6bxKb/aS1zi8h3d7HDchV5FRkp87TX0qWss6RpS/cMPvQv2DCtgJIYMr
M/M59oxJJsZpen105tMiUFermrPEGz7vmy4FkmG8t2giSQj78XZYQnZsp77AcTyC
IP2wNcVBYwfis3GvDuKgBduZlAV42tqL0U02HsaOvmHjhGcqLzJxlwDAa2es6/zU
KmbBatTR78oP2xf68BXQVB+x8WEjLxNI9J3c4uuLjYTxDxCKU+QNi57XS1VXp13q
72x0lxhe9uTOC+tipvTvj449RigOIfqhlyg7IIE/5xOIKZFUfZZSYZmQ00lx1O4=
=grcI
-----END PGP SIGNATURE-----
Merge tag 'imx-fixes-4.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
i.MX fixes for 4.18, round 4:
- A fix for i.MX6 RDU2 board on the wrong IRQ type of Marvell switch,
which might result in a race condition in the interrupt handler and
cause the OS to miss all future events.
* tag 'imx-fixes-4.18-4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx6: RDU2: fix irq type for mv88e6xxx switch
Signed-off-by: Olof Johansson <olof@lixom.net>
A set of 8 obvious fixes. Three (2 qla2xxx and the cxlflash oopses)
are regressions, two from 4.17 and one from the merge window. The
hpsa change is user visible, but it fixes an error users have
complained about.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
-----BEGIN PGP SIGNATURE-----
iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCW1IqByYcamFtZXMuYm90
dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishdB2AP9AaX1z
DXIwcYZJgwbX3rKTrwGM96mFTziFKPKoyuf7vgEA/5/ghgKbjmJX3oWWymEZ6Gw9
lA2sW47939WEulq88ns=
=ObTl
-----END PGP SIGNATURE-----
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"A set of 8 obvious fixes.
Three (2 qla2xxx and the cxlflash oopses) are regressions, two from
4.17 and one from the merge window. The hpsa change is user visible,
but it fixes an error users have complained about"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: cxlflash: fix assignment of the backend operations
scsi: qedi: Send driver state to MFW
scsi: qedf: Send the driver state to MFW
scsi: hpsa: correct enclosure sas address
scsi: sd_zbc: Fix variable type and bogus comment
scsi: qla2xxx: Fix NULL pointer dereference for fcport search
scsi: qla2xxx: Fix kernel crash due to late workqueue allocation
scsi: qla2xxx: Fix inconsistent DMA mem alloc/free
Only one revert:
* Revert an Intel VT-d patch that caused issues with the i915 GPU
driver
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=rpjL
-----END PGP SIGNATURE-----
Merge tag 'iommu-fixes-v4.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fix from Joerg Roedel:
"Only one revert, for an an Intel VT-d patch that caused issues with
the i915 GPU driver"
* tag 'iommu-fixes-v4.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
Revert "iommu/vt-d: Clean up pasid quirk for pre-production devices"
The Dell laptop ACPI video brightness control is now back
after fixing a regression brought by SMM refactoring.
The following is an automated git shortlog grouped by driver:
dell-laptop:
- Fix backlight detection
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEhiZOUlnC9oKN3n3AmT3/83c5Sy0FAltSCxIACgkQmT3/83c5
Sy3NHw//ZQIsa0wWMAQjLWycM0YwWFUO03o6blxwRl1R9molg48CkPclFJAxeU3z
m53uhhahD0fGiEBLRrgLXwBtVniU0jOOrBzQBUEQop1e0jg2sNXMpbysH5lpaWgw
AJpYrdTskn93pTWrJMH260z2M75vKU1sk0ejZ9xyvdq5v2ArpJjFGn69LQgzQQEs
ho5pez5pOhrf9+7Duj9h/GX/Wzb5i6pngkIaE4mctTOJyoIJxYRr4SHJUYDSzFzG
yD4W9/5dARRHQSJpnPDqg5Fqzy3Cyr6NzNm0f5zx+1I/DrG0t9iODI+EkFYMT14E
Sg35zW5xkEXB/w7OoUZh1F1rsYofWHjShl6IM/j61T2HW6eK0W9sbJDZr+iOWFLT
nIVkuhycZ4L5teHiPCx0Cq19PY5vLm5F88Uvddyh0J2995ivhRb4UbvLl+D322XW
gDYQlqay56hZzc72Yz662MHL03fs9bsPVyBIXKn2ZfKMRO46W3LRlNHL9WkRKijA
2YMDB9UuYKHyYWZ9tWa+tEC3QekSCVR3P3D6dYF+pWP87IArNOnAlFqe7X/7yP3f
otyMi+WHz5DyOyNgQZw5OFTHhRWg40UJMejfIco1UJUnEGdpsEOLQLD6g/Yntwzb
H4mbwQLYh/RjDwjaDfEIxJqF7TngOTBGi6X9CHBcamxWz1zFeB4=
=2Nl1
-----END PGP SIGNATURE-----
Merge tag 'platform-drivers-x86-v4.18-2' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver fixes from Andy Shevchenko:
"The Dell laptop ACPI video brightness control is now back after fixing
a regression brought by SMM refactoring"
* tag 'platform-drivers-x86-v4.18-2' of git://git.infradead.org/linux-platform-drivers-x86:
platform/x86: dell-laptop: Fix backlight detection
Here is the nds32 patch set based on 4.18-rc1.
Contained in here are the bug fixes and building error fixes for nds32.
These are the LTP20170427 testing results.
Total Tests: 1902
Total Skipped Tests: 593
Total Failures: 418
Kernel Version: 4.18.0-rc1-00006-g987553894f0c-dirty
Machine Architecture: nds32
Signed-off-by: Greentime Hu <greentime@andestech.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.17 (GNU/Linux)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=9cq3
-----END PGP SIGNATURE-----
Merge tag 'nds32-for-linus-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux
Pull nds32 updates from Greentime Hu:
"Bug fixes and build ixes for nds32"
* tag 'nds32-for-linus-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux:
nds32: fix build error "relocation truncated to fit: R_NDS32_25_PCREL_RELA" when make allyesconfig
nds32: To simplify the implementation of update_mmu_cache()
nds32: Fix the dts pointer is not passed correctly issue.
nds32: To implement these icache invalidation APIs since nds32 cores don't snoop data cache. This issue is found by Guo Ren. Based on the Documentation/core-api/cachetlb.rst and it says:
nds32: Fix build error caused by configuration flag rename
nds32: define __NDS32_E[BL]__ for sparse
Fix a relatively old initialization issue in intel_pstate causing
the pcc-cpufreq driver to be used instead of it on some HP Proliant
systems, which turned into a functional regression during the 4.17
cycle, because pcc-cpufreq is a scalability disaster and that was
amplified by the idle loop rework done at that time (Rafael Wysocki).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=h+O6
-----END PGP SIGNATURE-----
Merge tag 'pm-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"Fix a relatively old initialization issue in intel_pstate causing the
pcc-cpufreq driver to be used instead of it on some HP Proliant
systems.
This turned into a functional regression during the 4.17 cycle,
because pcc-cpufreq is a scalability disaster and that was amplified
by the idle loop rework done at that time (Rafael Wysocki).
* tag 'pm-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: intel_pstate: Register when ACPI PCCH is present
Extend the recently added suspend-to-idle quirk for Thinkpad X1
Carbon 6th to other systems from that familiy which turned out
to need it too (Robin Johnson).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=I8Cg
-----END PGP SIGNATURE-----
Merge tag 'acpi-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Extend the recently added suspend-to-idle quirk for Thinkpad X1 Carbon
6th to other systems from that familiy which turned out to need it too
(Robin Johnson)"
* tag 'acpi-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / EC: Use ec_no_wakeup on more Thinkpad X1 Carbon 6th systems
The old code in nvme_user_cmd() passed the userspace virtual address
from nvme_passthru_cmd.metadata as the length of the metadata buffer
as well as the address to nvme_submit_user_cmd().
Fixes: 63263d60 ("nvme: Use metadata for passthrough commands")
Signed-off-by: Roland Dreier <roland@purestorage.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Fix return code check for "max brightness" ACPI call.
The Dell laptop ACPI video brightness control is not present on dell
laptops anymore, but was present in older kernel versions.
The code that checks the return value is incorrect since the SMM
refactoring.
The old code was:
if (buffer->output[0] == 0)
Which was changed to:
ret = dell_send_request(...)
if (ret)
However, dell_send_request() will return 0 if buffer->output[0] == 0,
so we must change the check to:
if (ret == 0)
This issue was found on a Dell M4800 laptop, and the fix tested on it
as well.
Fixes: 549b4930f0 ("dell-smbios: Introduce dispatcher for SMM calls")
Signed-off-by: Damien Thébault <damien@dtbo.net>
Tested-by: Damien Thébault <damien@dtbo.net>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Sandipan Das