linaro-dev April 2014

linaro-dev@lists.linaro.org

26 participants
18 discussions

Re: Arndale Linux Linaro Test Result (phungte@gmail.com)

by Botao Sun

+ Linaro Dev mailing list Hi Phung-Te, I don't have Samsung Arndale Octa board on my hand, haven't started testing on it. @Fathi, do you know anything about the u-boot source code for Arndale Octa? Thanks. Best Regards Botao Sun Hello Botao, I am looking for the source of u-boot for arndale-octa and couldn't find it. Your u-boot git, both stable and next only have support for arndale, not arndale-octa. I could get to the binary which worked fine: arndale-octa-saucy_server_20140323-616.img.gz Can you please point me to the source of that build. Thank you. Phung-Te On Fri, Mar 28, 2014 at 2:58 PM, Botao Sun (Google Drive) < Botao.Sun(a)linaro.org> wrote: > I've shared an item with you. > [image: Spreadsheet] Arndale Linux Linaro Test Result<https://docs.google.com/spreadsheet/ccc?key=0AgB-fT5LL31CdGZJSFdTUWFFYVdhZl…> > Google Drive: create, share, and keep all your stuff in one place. [image: > Logo for Google Drive] <https://drive.google.com> >

10 years, 6 months

[PATCH PMQA] cpuidle_killer: allocate per cpu process array dynamically

by Sanjay Singh Rawat

currently percpu process array is set to 2, which results in segfault Signed-off-by: Sanjay Singh Rawat <sanjay.rawat(a)linaro.org> --- cpuidle/cpuidle_killer.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/cpuidle/cpuidle_killer.c b/cpuidle/cpuidle_killer.c index 5e7320f..09009ef 100644 --- a/cpuidle/cpuidle_killer.c +++ b/cpuidle/cpuidle_killer.c @@ -104,7 +104,7 @@ int main(int argc, char *argv[]) { int ret, i, nrcpus = 2; int nrsleeps, delay; - pid_t pids[nrcpus]; + pid_t *pids; struct timex timex = { 0 }; if (adjtimex(&timex) < 0) { @@ -121,6 +121,11 @@ int main(int argc, char *argv[]) } fprintf(stderr, "found %d cpu(s)\n", nrcpus); + pids = (pid_t *) calloc(nrcpus, sizeof(pid_t)); + if (pids == NULL) { + fprintf(stderr, "error: calloc failed\n"); + return 1; + } for (i = 0; i < nrcpus; i++) { -- 1.7.10.4

10 years, 7 months

[PATCH]: PowerTOP README file needs to be updated

by Mohammad Merajul Islam Molla

Hello, It looks like README file in powertop branch is out of sync with how powertop should be actually built. It should be updated. diff --git a/README b/README index 2961eba..d83b315 100644 --- a/README +++ b/README @@ -2,9 +2,10 @@ ------------------------------ To build and install PowerTOP type the following commands, - ./configure - ./make - ./make install + autoreconf -sfi + ./configure + make + make install Note: For Android (running Intel Architecture ) there is a Android.mk that was provided by community members, and at this time is supported -- Thanks, -Meraj

10 years, 7 months

why is the the smp_mb() in arm64's barrier.h "dmb ish"?

by KelvinKLi＠via-alliance.com

Hi All, In arch/arm64/include/asm/barrier.h, there is the definition of smp_mb()/smp_rmb()/smp_wmb() for arm64. I noticed that all the 3 macors are using "dmb ishxx", which is only affect the cluster of the CPU executing the instruction. But in the big.LITTLE system, there will be 2 cluster. So the smp_mb()/smp_rmb()/smp_wmb() cannot affect all the CPU in the system. Is there other considerations so that smp_mb()/smp_rmb()/smp_wmb() are implemented to "only affecting inner sharable cores"? Best Regards, Kelvin K. Li --------------------------------------------------------------- Software Team, VIA Technologies, Inc. 5F, VIA Tower, 1 Zhongguancun East Road, Haidian District, Beijing, 100084 Tel: 86-10-59852288 ext.3620 mailto: kelvinkli(a)via-alliance.com

10 years, 7 months

Test Result Summary of Linaro Android 14.04 Release.

by Soumya Basak

Linaro Android 14.04 Release (Calender week 17): Here is the test result summary for 14.04 Release Linaro Android image on following boards: 1) TI Panda 4460; 2) TI Panda 4430; 3) Samsung Arndale; 4) Galaxy Nexus; 5) ARM Versatile Express A9; 6) ARM Versatile Express TC2; 7) ARM Versatile Express TC2 LSK; 1. TI Panda 4460 + Linux Linaro Android (Column: R) https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadGVWd… 2. TI Panda 4430 + Linux Linaro Android (Column: R) https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadGVWd… 3. Samsung Arndale + Linux Linaro Android (Column: P) https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AuNOCeo15fRHdDFaR… 4. Galaxy Nexus + Linux Linaro Android (Column: N) https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AuNOCeo15fRHdFhhe… 5. ARM Versatile Express A9 + Linux Linaro Android (Column: R) https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadExQd… 6. ARM Versatile Express TC2 + Linux Linaro Android (Column: W) https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadExQd… 7. ARM Versatile Express TC2 LSK + Linux Linaro Android (Column: X) https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadExQd… Consolidated test result spreadsheet for Linaro Android 14.04 release, please visit the link below: https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AgB-fT5LL31CdDZxQ… -- Thank You. Best Regards -Soumya Basak.

10 years, 8 months

[PATCH PMQA] cpuhotplug: add subtest to stress hotplug feature

by Sanjay Singh Rawat

Signed-off-by: Sanjay Singh Rawat <sanjay.rawat(a)linaro.org> --- - This will help in catching issue like https://lkml.org/lkml/2014/3/25/122 - Tested on my x86 dev m/c Output: running hotplug stress on cpu : cpu1 pass: cpu hotplug count = 200 duration = 16.98 seconds running hotplug stress on cpu : cpu2 pass: cpu hotplug count = 200 duration = 16.36 seconds running hotplug stress on cpu : cpu3 pass: cpu hotplug count = 200 duration = 15.05 seconds - Issue: For a hotplug count of 500 the system just hangs. Need to manually restart. Is it safe to simply plugout the cpu? What will happend to the tasks in the cpu runqueue. --- cpuhotplug/cpuhotplug_09.sh | 70 ++++++++++++++++++++++++++++++++++++++++++ cpuhotplug/cpuhotplug_09.txt | 1 + 2 files changed, 71 insertions(+) create mode 100755 cpuhotplug/cpuhotplug_09.sh create mode 100644 cpuhotplug/cpuhotplug_09.txt diff --git a/cpuhotplug/cpuhotplug_09.sh b/cpuhotplug/cpuhotplug_09.sh new file mode 100755 index 0000000..be0c91c --- /dev/null +++ b/cpuhotplug/cpuhotplug_09.sh @@ -0,0 +1,70 @@ +#!/bin/bash +# +# PM-QA validation test suite for the power management on Linux +# +# Copyright (C) 2014, Linaro Limited. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# as published by the Free Software Foundation; either version 2 +# of the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +# +# Contributors: +# Sanjay Singh Rawat <sanjay.rawat(a)linaro.org> +# - initial API and implementation +# + +# URL : https://wiki.linaro.org/WorkingGroups/PowerManagement/Resources/TestSuite/P… + +source ../include/functions.sh +STRESS_COUNT=200 + +cpuhotplug_stress() { + local cpu=$1 + local dirpath=$CPU_PATH/$1 + local state= + local start= + local end= + shift 1 + + if [ "$cpu" == "cpu0" ]; then + # skipping main cpu + return 0 + fi + + echo "running hotplug stress on cpu :" $cpu + start=$(echo $(awk '{print $1}' /proc/uptime)) + + for i in $(seq 1 $STRESS_COUNT); + do + set_offline $cpu + state=$(get_online $cpu) + if [ $state -ne 0 ]; then + echo "fail: cpu offline failed at " $i + return 1 + fi + + set_online $cpu + state=$(get_online $cpu) + if [ $state -ne 1 ]; then + echo "fail: cpu online failed at " $i + return 1 + fi + done + + end=$(echo $(awk '{print $1}' /proc/uptime)) + echo "pass: cpu hotplug in/out count =" $i "duration =" $(echo "$end-$start" | bc) "seconds" + return 0 +} + +for_each_cpu cpuhotplug_stress +test_status_show diff --git a/cpuhotplug/cpuhotplug_09.txt b/cpuhotplug/cpuhotplug_09.txt new file mode 100644 index 0000000..5b0f8ac --- /dev/null +++ b/cpuhotplug/cpuhotplug_09.txt @@ -0,0 +1 @@ +test to stress cpu hotplug feature -- 1.7.10.4

10 years, 8 months

Test Result Summary of Linux Linaro ubuntu 14.04 Release.

by Botao Sun

Linaro 14.04 Release (Calendar Week 17): Here is test result summary for Linux Linaro ubuntu Saucy image on following boards: 1) Samsung Arndale; 2) TI Panda 4430; 3) TI Panda 4460. 1. Samsung Arndale + Linux Linaro Saucy (Column AX): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AgB-fT5LL31CdGZJS… 2. TI Panda 4430 + Linux Linaro Saucy (Column BE): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AroPySpr4FnEdEwwZ… 3. TI Panda 4460 + Linux Linaro Saucy (Column BE): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AroPySpr4FnEdEwwZ… For consolidated test result spreadsheet, please visit this link below: https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AgB-fT5LL31CdDdWZ… Thank you. Best Regards Botao Sun

10 years, 8 months

Fedora for AArch64 now available

by Al Stone

FYI: for those interested in Fedora, I thought I would pass on an announcement from Paul Whalen recently sent to the fedora-arm mailing list...you can now pick a remix image using the links highlighted below... Good afternoon folks, David Marlin has posted a new Aarch64 Fedora Rawhide Remix for those interested in upgrading from the F19 bootstrap image. The remix includes a lookaside repository[1] to provide a patched kernel and packages not yet built for aarch64. Instructions for downloading and using the remix have been added to the Quickstart[2] page. Paul [1] - http://dmarlin.fedorapeople.org/yum/f21/ [2] - https://fedoraproject.org/wiki/Architectures/ARM/AArch64/QuickStart -- ciao, al ----------------------------------- Al Stone Software Engineer Linaro Enterprise Group al.stone(a)linaro.org -----------------------------------

10 years, 8 months

[PATCH] Output format of powerdebug is messed up on Samsung Arndale Board

by Mohammad Merajul Islam Molla

Hello, This is for launchpad bug 1307896 ( https://bugs.launchpad.net/linaro-powerdebug/+bug/1307896). While displaying information about "Regulators" output becomes really messy (zig zag) on Samsung Arndale Board (Exynos 5250, Cortex A-15). It looks like the output field size "11" for printing regulator name is not enough. Some regulators have longer names. Hence proposing to increase this field size to a higher value, i.e. 25. Patch goes here - ---------------------------- diff --git a/regulator.c b/regulator.c index 9cd89fd..045cceb 100644 --- a/regulator.c +++ b/regulator.c @@ -127,7 +127,7 @@ static int regulator_display_cb(struct tree *t, void *data) if (!strlen(reg->name)) return 0; - if (asprintf(&buf, "%-11s %-11s %-11s %-11s %-11d %-11d %-11d %-12d", + if (asprintf(&buf, "%-25s %-11s %-11s %-11s %-11d %-11d %-11d %-12d", reg->name, reg->status, reg->state, reg->type, reg->num_users, reg->microvolts, reg->min_microvolts, reg->max_microvolts) < 0) @@ -147,7 +147,7 @@ static int regulator_print_header(void) char *buf; int ret; - if (asprintf(&buf, "%-11s %-11s %-11s %-11s %-11s %-11s %-11s %-12s", + if (asprintf(&buf, "%-25s %-11s %-11s %-11s %-11s %-11s %-11s %-12s", "Name", "Status", "State", "Type", "Users", "Microvolts", "Min u-volts", "Max u-volts") < 0) return -1; -- Thanks, -Meraj

10 years, 8 months

Re: [Qemu-devel] AArch64: QEMU fails in swapcontext

by Mian M. Hamayun

On 18/04/2014 16:44, Richard Henderson wrote: > On 04/18/2014 07:00 AM, Mian M. Hamayun wrote: >> Hello Peter & All, >> >> I am trying to figure out a problem in qemu on aarch64 (with kvm enabled). I >> have found this problem in many different versions of qemu >> (v2.0.0-rc3/rc2/rc1/rc0, master 2d03b49), and I believe that either I am >> missing something common in all of these versions or its a genuine bug in qemu >> on aarch64. >> >> The problem is triggered by virtqueue_notify() function (in virtio_ring.c) from >> the guest kernel and fails in the qemu_coroutine_new() while trying to do the >> swapcontext(&old_uc, &uc) (see coroutine-ucontext.c:164). The >> sigsetjmp(old_env, 0) just before the swapcontext() call seems to work fine, as >> it returns 0, and then we invoke the swapcontext(). >> >> The host kernel reports: >> "qemu-system-aar[596]: bad frame in sys_rt_sigreturn: pc=004462e0 >> sp=7f8020f000" and kills the qemu process due to segmentation fault. The >> pc=004462e0 is for the coroutine_trampoline() but we don't actually reach it, >> when this particular crash happens. >> >> Just to give you an idea of the code I am talking about: >> >> $~/qemu[master]$ git blame -L 159,166 coroutine-ucontext.c >> 00dccaf1 (Kevin Wolf 2011-01-17 16:08:14 +0000 159) makecontext(&uc, >> (void (*)(void))coroutine_trampoline, >> 00dccaf1 (Kevin Wolf 2011-01-17 16:08:14 +0000 160) 2, >> arg.i[0], arg.i[1]); >> 00dccaf1 (Kevin Wolf 2011-01-17 16:08:14 +0000 161) >> 6ab7e546 (Peter Maydell 2013-02-20 15:21:09 +0000 162) /* swapcontext() in, >> siglongjmp() back out */ >> 6ab7e546 (Peter Maydell 2013-02-20 15:21:09 +0000 163) if >> (!sigsetjmp(old_env, 0)) { >> 00dccaf1 (Kevin Wolf 2011-01-17 16:08:14 +0000 164) >> swapcontext(&old_uc, &uc); >> 00dccaf1 (Kevin Wolf 2011-01-17 16:08:14 +0000 165) } >> 00dccaf1 (Kevin Wolf 2011-01-17 16:08:14 +0000 166) return &co->base; >> >> My qemu configure/run commands are: >> >> ./configure --target-list=aarch64-softmmu \ >> --cross-prefix=aarch64-linux-gnu- \ >> --enable-fdt *--enable-kvm* --disable-werror \ >> --audio-drv-list="" --static >> >> ./qemu-system-aarch64 \ >> *-enable-kvm* -nographic -kernel Image \ >> -drive if=none,file=disk_oe64.img,id=fs \ >> -device virtio-blk-device,drive=fs \ >> -m 1024 -M virt -cpu host \ >> -append "earlyprintk console=ttyAMA0 mem=1024M rootwait root=/dev/vda rw >> init=/bin/sh" >> >> Any ideas/comments on how to resolve this issue? > Note that a patch has just gone into glibc to rewrite setcontext et al for > aarch64. I'd try using git glibc before looking too much deeper. > > > r~ > It seems right to me as well, as the setcontext related bug (for aarch64) has recently been posted/fixed in glibc: https://sourceware.org/bugzilla/show_bug.cgi?id=16629 I have also tested the example posted at: https://sourceware.org/bugzilla/attachment.cgi?id=7435 and I get the following output on x86_64: start f2 start f1 finish f2 finish f1 {ss_sp: (nil), ss_flags: 2, ss_size: 0} {ss_sp: (nil), ss_flags: 2, ss_size: 0} and this one on AArch64: start f2 start f1 finish f2 finish f1 {ss_sp: (nil), ss_flags: 2, ss_size: 0} *{ss_sp: 0x7ff7e723f0, ss_flags: 0, ss_size: 8192}* I will first look into updating my glibc for AArch64 before coming back to qemu. Thanks for your support, Hamayun

10 years, 8 months

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linaro-dev April 2014