[oe-commits] [openembedded-core] 05/05: linux-yocto/5.2: fix strace/ptrace long runtime issues

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rpurdie pushed a commit to branch master-next
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commit 55a54aed27ffa94a235da526a39aeea59caa3417
Author: Bruce Ashfield <bruce.ashfield at gmail.com>
AuthorDate: Tue Oct 8 10:26:29 2019 -0400

    linux-yocto/5.2: fix strace/ptrace long runtime issues
    
    Bumping SRCREVs to pickup the following kernel commit:
    
    [
        Author: Bruce Ashfield <bruce.ashfield at gmail.com>
        Date:   Tue Oct 8 13:15:46 2019 +0000
    
            signal/ptrace: fix cgroup2/freezer long runtimes
    
            As reported in the thread: https://lkml.org/lkml/2019/10/1/789, in
            kernels with commit 76f969e8948d82 [cgroup: cgroup v2 freezer], we
            were seeing much longer runtime in strace/ptrace tests (4 minutes
            versus 4 seconds).
    
            The issue only manifests if CONFIG_PREEMPT is enabled, which is in
            all of the default configurations.
    
            As sugggested in the thread, the movement of preempt_enable_no_resched()
            until after the cgroup is frozen returns the behaviour to pre-5.2
            runtimes.
    
            Signed-off-by: Bruce Ashfield <bruce.ashfield at gmail.com>
    ]
    
    With this change in place, our times are back to normal:
    
       root at qemux86-64:~# cd /usr/lib/strace/ptest/tests
       root at qemux86-64:/usr/lib/strace/ptest/tests# time ../strace -o log -qq -esignal=none -e/clock ./printpath-umovestr>ttt
    
       real    0m3.909s
       user    0m0.534s
       sys     0m3.342s
    
    This will eventually loop around via -stable, or may need future
    tweaks, but it does address the immediate issue/symptom that we are
    seeing, with no obvious side effects.
    
    [YOCTO #13556]
    
    Signed-off-by: Bruce Ashfield <bruce.ashfield at gmail.com>
    Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 meta/recipes-kernel/linux/linux-yocto-rt_5.2.bb   |  4 ++--
 meta/recipes-kernel/linux/linux-yocto-tiny_5.2.bb |  6 +++---
 meta/recipes-kernel/linux/linux-yocto_5.2.bb      | 20 ++++++++++----------
 3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/meta/recipes-kernel/linux/linux-yocto-rt_5.2.bb b/meta/recipes-kernel/linux/linux-yocto-rt_5.2.bb
index acae24e..e3fe544 100644
--- a/meta/recipes-kernel/linux/linux-yocto-rt_5.2.bb
+++ b/meta/recipes-kernel/linux/linux-yocto-rt_5.2.bb
@@ -11,8 +11,8 @@ python () {
         raise bb.parse.SkipRecipe("Set PREFERRED_PROVIDER_virtual/kernel to linux-yocto-rt to enable it")
 }
 
-SRCREV_machine ?= "90a5890111ca601af1cfba50939d4003fa8d9ce8"
-SRCREV_meta ?= "56f5bc749e5a8e40b55a3819288ac277813ec5ef"
+SRCREV_machine ?= "0a9f6ee2443b54c614107728ca76485916010023"
+SRCREV_meta ?= "b867b78b5019ae455af97dec7794cff7527d7624"
 
 SRC_URI = "git://git.yoctoproject.org/linux-yocto.git;branch=${KBRANCH};name=machine \
            git://git.yoctoproject.org/yocto-kernel-cache;type=kmeta;name=meta;branch=yocto-5.2;destsuffix=${KMETA}"
diff --git a/meta/recipes-kernel/linux/linux-yocto-tiny_5.2.bb b/meta/recipes-kernel/linux/linux-yocto-tiny_5.2.bb
index e6eb781..f3f5468 100644
--- a/meta/recipes-kernel/linux/linux-yocto-tiny_5.2.bb
+++ b/meta/recipes-kernel/linux/linux-yocto-tiny_5.2.bb
@@ -15,9 +15,9 @@ DEPENDS += "openssl-native util-linux-native"
 KMETA = "kernel-meta"
 KCONF_BSP_AUDIT_LEVEL = "2"
 
-SRCREV_machine_qemuarm ?= "e31887832108a1dfac19601459a84a2fa38207f7"
-SRCREV_machine ?= "25b14cdf9659c68ab32d66616dfdbbe2ece3fd94"
-SRCREV_meta ?= "56f5bc749e5a8e40b55a3819288ac277813ec5ef"
+SRCREV_machine_qemuarm ?= "aaa66d462ec17345dadd69b1ec0f3fcc83e82536"
+SRCREV_machine ?= "255a750d28cd45df8923c3aba1e82c322757a50d"
+SRCREV_meta ?= "b867b78b5019ae455af97dec7794cff7527d7624"
 
 PV = "${LINUX_VERSION}+git${SRCPV}"
 
diff --git a/meta/recipes-kernel/linux/linux-yocto_5.2.bb b/meta/recipes-kernel/linux/linux-yocto_5.2.bb
index 49b14b6..1a2c3ff 100644
--- a/meta/recipes-kernel/linux/linux-yocto_5.2.bb
+++ b/meta/recipes-kernel/linux/linux-yocto_5.2.bb
@@ -12,16 +12,16 @@ KBRANCH_qemux86  ?= "v5.2/standard/base"
 KBRANCH_qemux86-64 ?= "v5.2/standard/base"
 KBRANCH_qemumips64 ?= "v5.2/standard/mti-malta64"
 
-SRCREV_machine_qemuarm ?= "d956bb318771761069228fc70fea722ceabecb75"
-SRCREV_machine_qemuarm64 ?= "25b14cdf9659c68ab32d66616dfdbbe2ece3fd94"
-SRCREV_machine_qemumips ?= "9e95334637a4a85b19bea120f9027ff0028d7069"
-SRCREV_machine_qemuppc ?= "25b14cdf9659c68ab32d66616dfdbbe2ece3fd94"
-SRCREV_machine_qemuriscv64 ?= "25b14cdf9659c68ab32d66616dfdbbe2ece3fd94"
-SRCREV_machine_qemux86 ?= "25b14cdf9659c68ab32d66616dfdbbe2ece3fd94"
-SRCREV_machine_qemux86-64 ?= "25b14cdf9659c68ab32d66616dfdbbe2ece3fd94"
-SRCREV_machine_qemumips64 ?= "29a8d126f60d1b9e9cf0985b38da2033ebde25db"
-SRCREV_machine ?= "25b14cdf9659c68ab32d66616dfdbbe2ece3fd94"
-SRCREV_meta ?= "56f5bc749e5a8e40b55a3819288ac277813ec5ef"
+SRCREV_machine_qemuarm ?= "47b80ef7bd932830f299ed76e2302df631ae4fbe"
+SRCREV_machine_qemuarm64 ?= "255a750d28cd45df8923c3aba1e82c322757a50d"
+SRCREV_machine_qemumips ?= "45ff64cb3f87c38db6f46353ea93005d049b0cf6"
+SRCREV_machine_qemuppc ?= "255a750d28cd45df8923c3aba1e82c322757a50d"
+SRCREV_machine_qemuriscv64 ?= "255a750d28cd45df8923c3aba1e82c322757a50d"
+SRCREV_machine_qemux86 ?= "255a750d28cd45df8923c3aba1e82c322757a50d"
+SRCREV_machine_qemux86-64 ?= "255a750d28cd45df8923c3aba1e82c322757a50d"
+SRCREV_machine_qemumips64 ?= "ea0fd387a459803ac60e9b8a1729f2fc7d3215f1"
+SRCREV_machine ?= "255a750d28cd45df8923c3aba1e82c322757a50d"
+SRCREV_meta ?= "b867b78b5019ae455af97dec7794cff7527d7624"
 
 # remap qemuarm to qemuarma15 for the 5.2 kernel
 # KMACHINE_qemuarm ?= "qemuarma15"

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