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Add stack trace dumps for VFS over serial

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This commit is contained in:
Thomas Veerman 2013-01-02 13:41:36 +00:00
parent 625f4ae4a3
commit ea8ff9284a
2 changed files with 15 additions and 0 deletions
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13
kernel/arch/i386/arch_system.c
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@ -45,6 +45,8 @@ static int osfxsr_feature; /* FXSAVE/FXRSTOR instructions support (SSEx) */
void * k_stacks; void * k_stacks;
static void ser_debug(int c); static void ser_debug(int c);
static void ser_dump_vfs(void);
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
static void ser_dump_proc_cpu(void); static void ser_dump_proc_cpu(void);
#endif #endif
@ -391,6 +393,9 @@ static void ser_debug(const int c)
ser_dump_proc_cpu(); ser_dump_proc_cpu();
break; break;
#endif #endif
case '5':
ser_dump_vfs();
break;
#if DEBUG_TRACE #if DEBUG_TRACE
#define TOGGLECASE(ch, flag) \ #define TOGGLECASE(ch, flag) \
case ch: { \ case ch: { \
@ -428,6 +433,14 @@ void ser_dump_proc()
} }
} }
static void ser_dump_vfs()
{
/* Notify VFS it has to generate stack traces. Kernel can't do that as
* it's not aware of user space threads.
*/
mini_notify(proc_addr(KERNEL), VFS_PROC_NR);
}
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
static void ser_dump_proc_cpu(void) static void ser_dump_proc_cpu(void)
{ {

2
servers/vfs/main.c
View File

@ -112,6 +112,8 @@ int main(void)
/* A task notify()ed us */ /* A task notify()ed us */
if (who_e == DS_PROC_NR) if (who_e == DS_PROC_NR)
handle_work(ds_event); handle_work(ds_event);
else if (who_e == KERNEL)
mthread_stacktraces();
else if (fp != NULL && (fp->fp_flags & FP_SRV_PROC)) else if (fp != NULL && (fp->fp_flags & FP_SRV_PROC))
handle_work(do_dev_event); handle_work(do_dev_event);
else else