~vicamo/+git/ubuntu-kernel:bug-1813901/dump-clocksource-watchdog-for-cooper/bionic

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b1aa5cd... by You-Sheng Yang on 2019-04-10

dump clocksource/watchdog readings for cooper

TSC (RDTSCP)/HPET/TSC/Duration/Long period

5f1ee11... by Andrea Righi on 2019-04-05

openvswitch: fix flow actions reallocation

BugLink: https://bugs.launchpad.net/bugs/1813244

The flow action buffer can be resized if it's not big enough to contain
all the requested flow actions. However, this resize doesn't take into
account the new requested size, the buffer is only increased by a factor
of 2x. This might be not enough to contain the new data, causing a
buffer overflow, for example:

[ 42.044472] =============================================================================
[ 42.045608] BUG kmalloc-96 (Not tainted): Redzone overwritten
[ 42.046415] -----------------------------------------------------------------------------

[ 42.047715] Disabling lock debugging due to kernel taint
[ 42.047716] INFO: 0x8bf2c4a5-0x720c0928. First byte 0x0 instead of 0xcc
[ 42.048677] INFO: Slab 0xbc6d2040 objects=29 used=18 fp=0xdc07dec4 flags=0x2808101
[ 42.049743] INFO: Object 0xd53a3464 @offset=2528 fp=0xccdcdebb

[ 42.050747] Redzone 76f1b237: cc cc cc cc cc cc cc cc ........
[ 42.051839] Object d53a3464: 6b 6b 6b 6b 6b 6b 6b 6b 0c 00 00 00 6c 00 00 00 kkkkkkkk....l...
[ 42.053015] Object f49a30cc: 6c 00 0c 00 00 00 00 00 00 00 00 03 78 a3 15 f6 l...........x...
[ 42.054203] Object acfe4220: 20 00 02 00 ff ff ff ff 00 00 00 00 00 00 00 00 ...............
[ 42.055370] Object 21024e91: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 42.056541] Object 070e04c3: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 42.057797] Object 948a777a: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 42.059061] Redzone 8bf2c4a5: 00 00 00 00 ....
[ 42.060189] Padding a681b46e: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ

Fix by making sure the new buffer is properly resized to contain all the
requested data.

BugLink: https://bugs.launchpad.net/bugs/1813244
Signed-off-by: Andrea Righi <email address hidden>
Acked-by: Pravin B Shelar <email address hidden>
Signed-off-by: David S. Miller <email address hidden>

(cherry picked from commit f28cd2af22a0c134e4aa1c64a70f70d815d473fb)
Signed-off-by: Andrea Righi <email address hidden>
Acked-by: Juerg Haefliger <email address hidden>
Acked-by: Colin Ian King <email address hidden>
Signed-off-by: Juerg Haefliger <email address hidden>

c50532b... by Andrea Righi on 2019-04-02

UBUNTU: Ubuntu-4.15.0-48.51

Signed-off-by: Andrea Righi <email address hidden>

5c91ade... by Andrea Righi on 2019-04-02

UBUNTU: link-to-tracker: update tracking bug

BugLink: https://bugs.launchpad.net/bugs/1822820
Signed-off-by: Andrea Righi <email address hidden>

28be247... by Andrea Righi on 2019-04-02

UBUNTU: Start new release

Ignore: yes
Signed-off-by: Andrea Righi <email address hidden>

b09e1b8... by Andrea Righi on 2019-04-02

UBUNTU: [Packaging] resync retpoline extraction

BugLink: http://bugs.launchpad.net/bugs/1786013
Signed-off-by: Andrea Righi <email address hidden>

575a915... by Andrea Righi on 2019-04-02

UBUNTU: [Packaging] update helper scripts

BugLink: http://bugs.launchpad.net/bugs/1786013
Signed-off-by: Andrea Righi <email address hidden>

e4b5512... by Andrea Righi on 2019-03-28

btrfs: raid56: properly unmap parity page in finish_parity_scrub()

Buglink: https://bugs.launchpad.net/bugs/1812845

Parity page is incorrectly unmapped in finish_parity_scrub(), triggering
a reference counter bug on i386, i.e.:

 [ 157.662401] kernel BUG at mm/highmem.c:349!
 [ 157.666725] invalid opcode: 0000 [#1] SMP PTI

The reason is that kunmap(p_page) was completely left out, so we never
did an unmap for the p_page and the loop unmapping the rbio page was
iterating over the wrong number of stripes: unmapping should be done
with nr_data instead of rbio->real_stripes.

Test case to reproduce the bug:

 - create a raid5 btrfs filesystem:
   # mkfs.btrfs -m raid5 -d raid5 /dev/sdb /dev/sdc /dev/sdd /dev/sde

 - mount it:
   # mount /dev/sdb /mnt

 - run btrfs scrub in a loop:
   # while :; do btrfs scrub start -BR /mnt; done

BugLink: https://bugs.launchpad.net/bugs/1812845
Fixes: 5a6ac9eacb49 ("Btrfs, raid56: support parity scrub on raid56")
CC: <email address hidden> # 4.4+
Reviewed-by: Johannes Thumshirn <email address hidden>
Signed-off-by: Andrea Righi <email address hidden>
Reviewed-by: David Sterba <email address hidden>
Signed-off-by: David Sterba <email address hidden>
(cherry picked from commit 3897b6f0a859288c22fb793fad11ec2327e60fcd)
Signed-off-by: Andrea Righi <email address hidden>
Acked-by: Po-Hsu Lin <email address hidden>
Acked-by: Kleber Sacilotto de Souza <email address hidden>
Signed-off-by: Kleber Sacilotto de Souza <email address hidden>

f5cf5e9... by Abhishek Goel <email address hidden> on 2019-04-01

cpupower : Fix header name to read idle state name

BugLink: https://bugs.launchpad.net/bugs/1719545

The names of the idle states in the output of cpupower monitor command are
truncated to 4 characters. On POWER9, this creates ambiguity as the states
are named "stop0", "stop1", etc.

root:~# cpupower monitor
              |Idle_Stats
PKG |CORE|CPU | snoo | stop | stop | stop | stop | stop | stop
   0| 0| 0| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 1.90
   0| 0| 1| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00
   0| 0| 2| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00
   0| 0| 3| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00

This patch modifies the output to print the state name that results in a
legible output. The names will be printed with atmost 1 padding in left.

root:~# cpupower monitor
              | Idle_Stats
 PKG|CORE| CPU|snooze|stop0L| stop0|stop1L| stop1|stop2L| stop2
   0| 0| 0| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.72
   0| 0| 1| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00
   0| 0| 2| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00
   0| 0| 3| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00| 0.00

This patch does not affect the output for intel.
Output for intel before applying the patch:

root:~# cpupower monitor
    |Idle_Stats
CPU | POLL | C1-S | C1E- | C3-S | C6-S | C7s- | C8-S | C9-S | C10-
   0| 0.00| 0.14| 0.39| 0.35| 7.41| 0.00| 17.67| 1.01| 70.03
   2| 0.00| 0.19| 0.47| 0.10| 6.50| 0.00| 29.66| 2.17| 58.07
   1| 0.00| 0.11| 0.50| 1.50| 9.11| 0.18| 18.19| 0.40| 66.63
   3| 0.00| 0.67| 0.42| 0.03| 5.84| 0.00| 12.58| 0.77| 77.14

Output for intel after applying the patch:

root:~# cpupower monitor
    | Idle_Stats
 CPU| POLL | C1-S | C1E- | C3-S | C6-S | C7s- | C8-S | C9-S | C10-
   0| 0.03| 0.33| 1.01| 0.27| 3.03| 0.00| 19.18| 0.00| 71.24
   2| 0.00| 1.58| 0.58| 0.42| 8.55| 0.09| 21.11| 0.99| 63.32
   1| 0.00| 1.26| 0.88| 0.43| 9.00| 0.02| 7.78| 4.65| 71.91
   3| 0.00| 0.30| 0.42| 0.06| 13.62| 0.21| 30.29| 0.00| 52.45

Signed-off-by: Abhishek Goel <email address hidden>
Signed-off-by: Shuah Khan (Samsung OSG) <email address hidden>
(cherry picked from commit f9652d5cae04eb5e85303c087f5842d320499c65)
Signed-off-by: Khalid Elmously <email address hidden>
Acked-by: Stefan Bader <email address hidden>
Acked-by: Kleber Sacilotto de Souza <email address hidden>
Signed-off-by: Kleber Sacilotto de Souza <email address hidden>

e010506... by Andrey Grodzovsky <email address hidden> on 2019-03-07

drm/amdgpu: Free VGA stolen memory as soon as possible.

BugLink: https://launchpad.net/bugs/1818617

Reserved VRAM is used to avoid overriding pre OS FB.
Once our display stack takes over we don't need the reserved
VRAM anymore.

v2:
Remove comment, we know actually why we need to reserve the stolen VRAM.
Fix return type for amdgpu_ttm_late_init.
v3:
Return 0 in amdgpu_bo_late_init, rebase on changes to previous patch
v4: rebase
v5:
For GMC9 reserve always just 9M and keep the stolem memory around
until GART table curruption on S3 resume is resolved.

Reviewed-by: Alex Deucher <email address hidden>
Signed-off-by: Andrey Grodzovsky <email address hidden>
Signed-off-by: Alex Deucher <email address hidden>
(backported from commit 6f752ec2c20c6a575da29d5b297980f376830e6b)
Signed-off-by: Timo Aaltonen <email address hidden>
Acked-by: Khalid Elmously <email address hidden>
Acked-by: Stefan Bader <email address hidden>
Signed-off-by: Khalid Elmously <email address hidden>