dd7d4703e9
Martin Kennedy reported: |Presently, I get this kernel panic on mpc85xx (Aerohive HiveAP 370) |on OpenWrt 'master' which occurs right as the second processor is |initialized: | |[ 0.478804] rcu: Hierarchical SRCU implementation. |[ 0.535569] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build |[ 0.627233] smp: Bringing up secondary CPUs ... |[ 0.681659] kernel tried to execute user page (0) - exploit attempt? (uid: 0) |[ 0.766618] BUG: Unable to handle kernel instruction fetch (NULL pointer?) |[ 0.848899] Faulting instruction address: 0x00000000 |[ 0.908273] Oops: Kernel access of bad area, sig: 11 [#1] |[ 0.972851] BE PAGE_SIZE=4K SMP NR_CPUS=2 P1020 RDB |[ 1.031179] Modules linked in: |[ 1.067640] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.10.80 #0 |[ 1.139507] NIP: 00000000 LR: c0021d2c CTR: 00000000 |[ 1.199921] REGS: c1051cf0 TRAP: 0400 Not tainted (5.10.80) |[...] |[ 1.758220] NIP [00000000] 0x0 |[ 1.794688] LR [c0021d2c] smp_85xx_kick_cpu+0xe8/0x568 |[ 1.856126] Call Trace: |[ 1.885295] [c1051da8] [c0021cb8] smp_85xx_kick_cpu+0x74/0x568 (unreliable) |[ 1.968633] [c1051de8] [c0011460] __cpu_up+0xc0/0x228 |[ 2.029038] [c1051e18] [c0031bbc] bringup_cpu+0x30/0x224 |[ 2.092572] [c1051e48] [c0031f3c] cpu_up.constprop.0+0x180/0x33c |[..] |[ 2.727952] ---[ end trace 9b796a4bafb6bc14 ]--- |[ 3.800879] Kernel panic - not syncing: Fatal exception |[ 3.862353] Rebooting in 1 seconds.. |[ 5.905097] System Halted, OK to turn off power | |I bisected this down to commit 3ae5da5adce9 ("kernel: bump 5.10 to 5.10.80"); |that is, I don't get the panic right before this commit, but I do after. He reported the issue upstream and Xiaoming Ni from huawei came up with the patch (that is on it's way to upstream). While the AP370 is not in Openwrt, this will likely affect other SMP P1020 devices OpenWrt ships with: like the AP330, Enterasys WS-AP3710i, etc. Reported-by: Martin Kennedy <hurricos@gmail.com> Tested-by: Martin Kennedy <hurricos@gmail.com> Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
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!
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 python3.6+ rsync subversion unzip which
Quickstart
-
Run
./scripts/feeds update -ato obtain all the latest package definitions defined in feeds.conf / feeds.conf.default -
Run
./scripts/feeds install -ato install symlinks for all obtained packages into package/feeds/ -
Run
make menuconfigto select your preferred configuration for the toolchain, target system & firmware packages. -
Run
maketo 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.
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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
#openwrton oftc.net.
Developer Community
- Bug Reports: Report bugs in OpenWrt
- Dev Mailing List: Send patches
- Dev Chat: Channel
#openwrt-develon oftc.net.
License
OpenWrt is licensed under GPL-2.0