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sched: catch task memory leak

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Print all unreleased memory blocks when the task exits

Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
This commit is contained in:
yinshengkai 2022-10-28 11:42:13 +08:00 committed by Xiang Xiao
parent 65dc1fe0fc
commit 2c95c04f4e
2 changed files with 20 additions and 0 deletions
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8
sched/Kconfig
View File

@ -595,6 +595,14 @@ config SCHED_WAITPID
compliant) and will enable the waitid() and wait() interfaces as compliant) and will enable the waitid() and wait() interfaces as
well. well.
config SCHED_DUMP_LEAK
bool "Enable catch task memory leak"
default n
---help---
When this option is enabled, the task's outstanding memory allocations
are printed using syslog. This helps catch any memory allocated by the
task that remains unreleased when the task exits.
config SCHED_USER_IDENTITY config SCHED_USER_IDENTITY
bool "Support per-task User Identity" bool "Support per-task User Identity"
default n default n

12
sched/task/task_exithook.c
View File

@ -33,6 +33,7 @@
#include <nuttx/sched.h> #include <nuttx/sched.h>
#include <nuttx/fs/fs.h> #include <nuttx/fs/fs.h>
#include <nuttx/mm/mm.h>
#include "sched/sched.h" #include "sched/sched.h"
#include "group/group.h" #include "group/group.h"
@ -505,6 +506,17 @@ void nxtask_exithook(FAR struct tcb_s *tcb, int status, bool nonblocking)
nxsig_cleanup(tcb); /* Deallocate Signal lists */ nxsig_cleanup(tcb); /* Deallocate Signal lists */
#ifdef CONFIG_SCHED_DUMP_LEAK
if ((tcb->cmn.flags & TCB_FLAG_TTYPE_MASK) == TCB_FLAG_TTYPE_KERNEL)
{
kmm_memdump(tcb->pid);
}
else
{
umm_memdump(tcb->pid);
}
#endif
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
leave_critical_section(flags); leave_critical_section(flags);
#endif #endif