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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2007-03-29 13:26:24 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2007-03-29 13:26:24 +0000 |
| commit | b47669c88a2bf61807881482f271ca3928c32530 (patch) | |
| tree | 91118c96b10a576b9bc37b57bb10246b9399e1e2 /nuttx/arch/pjrc-8051 | |
| parent | 605bd84ced2cf37e267eccf604bdff1a985a65d8 (diff) | |
| download | px4-nuttx-b47669c88a2bf61807881482f271ca3928c32530.tar.gz px4-nuttx-b47669c88a2bf61807881482f271ca3928c32530.tar.bz2 px4-nuttx-b47669c88a2bf61807881482f271ca3928c32530.zip | |
task_delete() calls sched_unlock(); _exit must keep pre-emption disabled until pending queue emptied.
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@167 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/pjrc-8051')
| -rw-r--r-- | nuttx/arch/pjrc-8051/src/up_exit.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/nuttx/arch/pjrc-8051/src/up_exit.c b/nuttx/arch/pjrc-8051/src/up_exit.c index a9b641bab..b938d9304 100644 --- a/nuttx/arch/pjrc-8051/src/up_exit.c +++ b/nuttx/arch/pjrc-8051/src/up_exit.c @@ -90,6 +90,13 @@ void _exit(int status) (void)sched_removereadytorun(tcb); + /* We are not in a bad stack-- the head of the ready to run task list + * does not correspond to the thread that is running. Disabling pre- + * emption on this TCB should be enough to keep things stable. + */ + + sched_lock(); + /* Move the TCB to the specified blocked task list and delete it */ sched_addblocked(tcb, TSTATE_TASK_INACTIVE); @@ -104,6 +111,10 @@ void _exit(int status) (void)sched_mergepending(); } + /* Now calling sched_unlock() should have no effect */ + + sched_unlock(); + /* Now, perform the context switch to the new ready-to-run task at the * head of the list. */ |