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Hannu Nyman 47d56ae546
base-files: sysupgrade: Add 2 sec sleep into process KILL loop 
Add 2 seconds sleep after each forcibly killed/tried-to-kill process
in the final process termination loop in sysupgrade stage2.

This is needed especially for qualcommax/ipq807x, where ath11k
wireless driver may have a long 10-20 seconds delay after termination
before actually getting killed. This often breaks sysupgrade.

The current KILL loop in kill_remaining does all 10 kill attempts
consecutively without any delay, as evidenced here in a failing sysupgrade.
It does not allow any time for the process to finalize its internal
termination.

Sat Sep  2 19:05:56 EEST 2023 upgrade: Sending TERM to remaining processes ...
Sat Sep  2 19:05:56 EEST 2023 upgrade: Sending signal TERM to hostapd (2122)
Sat Sep  2 19:05:56 EEST 2023 upgrade: Sending signal TERM to hostapd (2138)
Sat Sep  2 19:06:00 EEST 2023 upgrade: Sending KILL to remaining processes ...
Sat Sep  2 19:06:00 EEST 2023 upgrade: Sending signal KILL to hostapd (2122)
Sat Sep  2 19:06:00 EEST 2023 upgrade: Sending signal KILL to hostapd (2138)
Sat Sep  2 19:06:00 EEST 2023 upgrade: Sending signal KILL to hostapd (2138)
Sat Sep  2 19:06:00 EEST 2023 upgrade: Sending signal KILL to hostapd (2138)
Sat Sep  2 19:06:00 EEST 2023 upgrade: Sending signal KILL to hostapd (2138)
Sat Sep  2 19:06:00 EEST 2023 upgrade: Sending signal KILL to hostapd (2138)
Sat Sep  2 19:06:00 EEST 2023 upgrade: Sending signal KILL to hostapd (2138)
Sat Sep  2 19:06:00 EEST 2023 upgrade: Sending signal KILL to hostapd (2138)
Sat Sep  2 19:06:00 EEST 2023 upgrade: Sending signal KILL to hostapd (2138)
Sat Sep  2 19:06:00 EEST 2023 upgrade: Sending signal KILL to hostapd (2138)
Sat Sep  2 19:06:00 EEST 2023 upgrade: Sending signal KILL to hostapd (2138)
Sat Sep  2 19:06:00 EEST 2023 upgrade: Failed to kill all processes.
sysupgrade aborted with return code: 256

The change in this commit adds a 2 seconds delay after each kill attempt
in order to allow some processes to more gracefully handle their
internal termination.

The result is like this:

Sun Sep  3 11:15:10 EEST 2023 upgrade: Sending TERM to remaining processes ...
Sun Sep  3 11:15:10 EEST 2023 upgrade: Sending signal TERM to hostapd (2309)
Sun Sep  3 11:15:10 EEST 2023 upgrade: Sending signal TERM to hostapd (2324)
Sun Sep  3 11:15:14 EEST 2023 upgrade: Sending KILL to remaining processes ...
Sun Sep  3 11:15:14 EEST 2023 upgrade: Sending signal KILL to hostapd (2309)
[  699.827521] br-lan: port 7(hn5wpa2r) entered disabled state
[  699.908673] device hn5wpa2r left promiscuous mode
[  699.908721] br-lan: port 7(hn5wpa2r) entered disabled state
[  701.038029] br-lan: port 6(hn5wpa3) entered disabled state
Sun Sep  3 11:15:16 EEST 2023 upgrade: Sending signal KILL to hostapd (2324)
[  702.058256] br-lan: port 5(hn2wlan) entered disabled state
[  709.250063] stage2 (8237): drop_caches: 3
Sun Sep  3 11:15:25 EEST 2023 upgrade: Switching to ramdisk...

The delay introduced here only kicks in if there is some process that
does not get terminated by the first TERM call. Then there is at least
one 2 sec wait after the first KILL loop round.

This commit is related to discussion in PRs #12235 and #12632

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
Reviewed-by: Robert Marko <robimarko@gmail.com>
2023-09-12 14:52:50 +02:00
.github uboot-bcm53xx: Add U-Boot for NorthStar BCM53xx 2023-08-20 18:08:13 +02:00
config kernel: default ARM_PMU on for armsr/armv8 2023-08-15 15:55:00 +02:00
include kernel: bump 6.1 to 6.1.52 2023-09-09 02:15:15 +02:00
LICENSES
package base-files: sysupgrade: Add 2 sec sleep into process KILL loop 2023-09-12 14:52:50 +02:00
scripts scripts/download.pl: remove stale GNOME download sites 2023-09-01 23:09:43 +02:00
target x86: geode: fix hwrng register accesses 2023-09-11 21:34:16 +02:00
toolchain toolchain/binutils: add support for version 2.41 2023-08-09 15:33:38 +02:00
tools tools/cmake: update to 3.27.4 2023-09-03 23:07:16 +02:00
.gitattributes
.gitignore .gitignore: ignore link if target is included from feed 2023-07-26 17:45:11 +02:00
BSDmakefile
Config.in
COPYING
feeds.conf.default Revert "feeds: use git-src-full to allow Git versioning" 2023-05-23 14:38:55 +02:00
Makefile treewide: add ORIG_PATH variable 2023-06-05 08:31:47 +02:00
README.md build: drop support for python 3.6 2023-05-22 13:23:35 +02:00
rules.mk prereq-build: increase GCC requirement to 8 2023-08-14 20:18:42 +02:00

README.md

OpenWrt logo

OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.

Sunshine!

Download

Built firmware images are available for many architectures and come with a package selection to be used as WiFi home router. To quickly find a factory image usable to migrate from a vendor stock firmware to OpenWrt, try the Firmware Selector.

If your device is supported, please follow the Info link to see install instructions or consult the support resources listed below.

An advanced user may require additional or specific package. (Toolchain, SDK, ...) For everything else than simple firmware download, try the wiki download page:

Development

To build your own firmware you need a GNU/Linux, BSD or MacOSX system (case sensitive filesystem required). Cygwin is unsupported because of the lack of a case sensitive file system.

Requirements

You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.

binutils bzip2 diff find flex gawk gcc-6+ getopt grep install libc-dev libz-dev
make4.1+ perl python3.7+ rsync subversion unzip which

Quickstart

  1. Run ./scripts/feeds update -a to obtain all the latest package definitions defined in feeds.conf / feeds.conf.default

  2. Run ./scripts/feeds install -a to install symlinks for all obtained packages into package/feeds/

  3. Run make menuconfig to select your preferred configuration for the toolchain, target system & firmware packages.

  4. Run make to build your firmware. This will download all sources, build the cross-compile toolchain and then cross-compile the GNU/Linux kernel & all chosen applications for your target system.

Related Repositories

The main repository uses multiple sub-repositories to manage packages of different categories. All packages are installed via the OpenWrt package manager called opkg. If you're looking to develop the web interface or port packages to OpenWrt, please find the fitting repository below.

  • LuCI Web Interface: Modern and modular interface to control the device via a web browser.

  • OpenWrt Packages: Community repository of ported packages.

  • OpenWrt Routing: Packages specifically focused on (mesh) routing.

  • OpenWrt Video: Packages specifically focused on display servers and clients (Xorg and Wayland).

Support Information

For a list of supported devices see the OpenWrt Hardware Database

Documentation

Support Community

  • Forum: For usage, projects, discussions and hardware advise.
  • Support Chat: Channel #openwrt on oftc.net.

Developer Community

License

OpenWrt is licensed under GPL-2.0