devel@lists.zephyrproject.org

Re: 回复：回复：[Zephyr-devel] is there any gudeline on how to run SMP mode kernel on X86 architecture?

Hi there, You are right, I made a mistake. Here’s the updated instructions that work for me: $ cd ~/zephyrproject/zephyr $ source zephyr-env.sh $ west build -b qemu_x86_64

By Carles Cufi · #6690 ·

Re: why no matches found in "west build -t menuconfig" during find "CONFIG_THREAD_NAME" flag?

Hello, Skip the 'CONFIG_' prefix when searching for symbols in menuconfig. 'CONFIG_' is just added on output. Can also search for e.g. "thread name" btw. The search function isn't case-sensitive, and

By Ulf Magnusson · #6689 ·

why no matches found in "west build -t menuconfig" during find "CONFIG_THREAD_NAME" flag?

See blow picture, i try to enable the flag "CONFIG_THREAD_NAME" because it was disabled by default, but still cant see the configuration items in menuconfig, can anyone tell me

By "曹子龙 · #6688 ·

回复：回复：[Zephyr-devel] is there any gudeline on how to run SMP mode kernel on X86 architecture?

Thank you! But it seems cant load the symbol, so how to compile the debug elf files? BTW: there are two elf files exist in build dir, zephyr.elf and zepyhr-qemu.elf, what is the difference? Thread 1

By "曹子龙 · #6687 ·

GPIO porting status, 24th January

[resending this email with the mailing list included to increase distribution] Hi all, This is the current status of GPIO user porting as of today (24th January): Remaining users without a

By Carles Cufi · #6686 ·

Re: 回复：[Zephyr-devel] is there any gudeline on how to run SMP mode kernel on X86 architecture?

$ cd ~/zephyrproject/zephyr $ source zephyr-env.sh $ west build-b qemu_x86_64 samples/hello_world/ $ cd build/ $ ninja debugserver and then in another terminal $ gdb (gdb) target remote

By Carles Cufi · #6685 ·

Zephyr 2.2 release schedule

Hi, I’d like to remind everyone of the current release schedule for the next Zephyr release, i.e. version 2.2: - The feature merge window is open for roughly two more weeks, closing on February

By Johan Hedberg · #6684 ·

回复：[Zephyr-devel] is there any gudeline on how to run SMP mode kernel on X86 architecture?

Thanks Can it be debuged by GDB? how to with west? 曹子龙珠海全志科技股份有限公司

By "曹子龙 · #6683 ·

Race Condition in ATT #ble #nrf52480

In version 1.14.1, there appears to be a race condition when updating an indication value. It results in a BUS FAULT, which occurs because a pointer becomes null. Here are the Zephyr ATT print

By ben.byers@... · #6682 · Edited

SDK 0.11.0 Release

Hi, Latest version of the SDK can be found here: https://github.com/zephyrproject-rtos/sdk-ng/releases/tag/v0.11.0 Please download and try things out and report any issues. General: • Replaced

By Kumar Gala · #6681 ·

Re: Use of k_work_submit_to_user_queue() with CONFIG_USERSPACE

This is a bug. I’ll spend some time on this today and get a GH issue opened. Andrew

By Boie, Andrew P · #6680 ·

Re: is there any gudeline on how to run SMP mode kernel on X86 architecture?

The qemu_x86_64 target is configured to use two cores and SMP by default. Regards, Andrew

By Boie, Andrew P · #6679 ·

Use of k_work_submit_to_user_queue() with CONFIG_USERSPACE

I have a work Q that will run in user state and attempting to send work to it. This results in intermittent failures. The issue I see in my current test is that I have taken an interrupt while

By Phil Erwin Jr · #6678 ·

is there any gudeline on how to run SMP mode kernel on X86 architecture?

Now SMP only supported on xtensa, arc and x86 arch, but it seems more diffculte to run on xtensa and arc becasue of no boards. so anybody can tell me how to launch a smp run environment on x86 arch?

By "曹子龙 · #6677 ·

Re: 回复：回复：[Zephyr-devel] Is this a bug? how to guarantee the "atomic semantics access of readyqueue" in "do_swap" function during context switch in SMP mode?

Hi there, Race conditions for SMP are still under investigation. We found one today where the same thread object was being scheduled on two cores. Additional eyes on this (or patches) are greatly

By Boie, Andrew P · #6676 ·

回复：回复：[Zephyr-devel] Is this a bug? how to guarantee the "atomic semantics access of readyqueue" in "do_swap" function during context switch in SMP mode?

hi : would the "wait_for_switch(new_thread)" would aggravate the race condition not fix the race condition？ the old thread save state still cant guarantee to be saved before it pick up by other

By "曹子龙 · #6675 ·

回复：回复：[Zephyr-devel] Is this a bug? how to guarantee the "atomic semantics access of readyqueue" in "do_swap" function during context switch in SMP mode?

HI folks: i still belive there are race conditions exist. in "do_swap" function, what would happen if others cpus pick up the "old" thread to run before it do the actual context backup? because

By "曹子龙 · #6674 ·

Cancelled Event: Zephyr Project: Dev Meeting - Thursday, 23 January 2020 #cal-cancelled

Cancelled: Zephyr Project: Dev Meeting This event has been cancelled. When: Thursday, 23 January 2020 8:00am to 9:00am (UTC-08:00) America/Los

By devel@lists.zephyrproject.org Calendar <devel@...> · #6673 ·

Re: 回复：[Zephyr-devel] Is this a bug? how to guarantee the "atomic semantics access of readyqueue" in "do_swap" function during context switch in SMP mode?

Hi The PR mentioned below (https://github.com/zephyrproject-rtos/zephyr/pull/21903) was merged yesterday – please review the comments and code changes for more details on the fix. Can you please

By Jennifer M Williams · #6672 ·

Re: 回复：[Zephyr-devel] Is this a bug? how to guarantee the "atomic semantics access of readyqueue" in "do_swap" function during context switch in SMP mode?

Actually, that PR merged a few hours ago, so code in master does not have this issue anymore. But yes: it was real and visible in CI testing as a spurious failure in qemu_x86_64. Andy

By Andy Ross · #6671 ·

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