| Age | Commit message (Collapse) | Author |
|---|
|
Grow maps without a 256 VMA cap, skip RSS walks for maps, report
matching status text, real RSS/statm, MemAvailable after page-pool
free pages, load averages plus last PID, cumulative processes, RV32
cpuinfo, and per-character mount escaping.
|
|
When msh tries to execute a non-ELF path, lwp_execve() may allocate a PID
before lwp_load() fails. The old error path only dropped the LWP reference,
leaving the PID tree entry pointing to a freed LWP.
In an init-less boot flow, this can poison pid 1 after a failed command from
msh. A later LWP launch may then treat the stale pid 1 entry as a valid parent
LWP, resulting in invalid pgrp/session state and a job-control assertion during
process exit.
Add lwp_pid_rollback() for exec/spawn failures before the process becomes
runnable. Unlike lwp_pid_put(), it always releases the PID lock and does not
enter the "no more pid allocation" state when the PID tree becomes empty.
Use the rollback helper in lwp_execve() failure paths after PID allocation.
Signed-off-by: zhangyang <[email protected]>
|
|
|
|
The patch introduces support for system reboot functionality and process teardown,
allowing for a clean shutdown and unmounting of the root filesystem. This is
necessary for ensuring a proper system shutdown process, especially when dealing
with resource cleanup and ensuring that all processes have exited before system
shutdown.
Changes:
- Added `lwp_teardown()` function to handle process cleanup and system teardown.
- Introduced `lwp_pid_wait_for_empty()` to wait for process ID table emptiness
before proceeding with shutdown.
- Updated `dfs_mnt_unref()` to trigger callbacks when unmounting a filesystem.
- Added new reboot types (`RB_AUTOBOOT`, `RB_POWER_OFF`) and implemented their
corresponding actions, including cleanup of processes and unmounting root
filesystem.
- Extended `sys_reboot()` to handle reboot and power off types with appropriate
callbacks for process and filesystem teardown.
- Introduced callback mechanism for root filesystem unmount notifications.
Signed-off-by: Shell <[email protected]>
|
|
This change introduces the `lwp_pid_for_each` function, which provides a
convenient and thread-safe method for iterating over PIDs with a user-
defined callback. This addition is necessary to support cases where
operations must be performed on each PID in the balanced tree, enhancing
flexibility and modularity for PID management.
Changes:
- Added `lwp_pid_for_each` function in `lwp_pid.c` to allow iteration
over PIDs using a callback function and optional data parameter.
- Defined a new internal `pid_foreach_param` structure to encapsulate
the callback and data for the iteration.
- Added `_before_cb` helper function for executing the callback on each
PID node during AVL traversal.
- Ensured thread safety by acquiring and releasing the PID lock around
the AVL traversal within `lwp_pid_for_each`.
- Updated `lwp_pid.h` with the `lwp_pid_for_each` function prototype and
included `rtthread.h` for necessary types.
Signed-off-by: Shell <[email protected]>
|
|
Signed-off-by: xqyjlj <[email protected]>
Signed-off-by: Shell <[email protected]>
Co-authored-by: xqyjlj <[email protected]>
|
|
Signed-off-by: shell <[email protected]>
Signed-off-by: Shell <[email protected]>
Co-authored-by: xqyjlj <[email protected]>
|
|
Signed-off-by: Shell <[email protected]>
Co-authored-by: Shell <[email protected]>
|
|
Prev implementation of lwp_new() including the create of lwp object
and the pid allocation. But not every lwp object need a pid.
So this patch split out the business of lwp_new() to improve the
maintainability.
Signed-off-by: Shell <[email protected]>
|
|
Signed-off-by: Shell <[email protected]>
|
|
* Synchronize the code of the rt mart branch to the master branch.
* TTY device
* Add lwP code from rt-smart
* Add vnode in DFS, but DFS will be re-write for rt-smart
* There are three libcpu for rt-smart:
* arm/cortex-a, arm/aarch64
* riscv64
Co-authored-by: Rbb666 <[email protected]>
Co-authored-by: zhkag <[email protected]>
|
