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Groups > linux.kernel > #1379032
| From | Peter Zijlstra <peterz@infradead.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v3 5/6] sched/deadline/rtmutex: Fix unprotected PI access in enqueue_task_dl() |
| Date | 2016-04-14 17:40 +0200 |
| Message-ID | <rnRx7-408-9@gated-at.bofh.it> (permalink) |
| References | <rnNMR-Ww-3@gated-at.bofh.it> <rnNMS-Ww-27@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, Apr 14, 2016 at 07:37:06PM +0800, Xunlei Pang wrote: > We access @pi_task's data without any lock in enqueue_task_dl(), though > checked "dl_prio(pi_task->normal_prio)" condition, that's not enough. The proper fix is to ensure that pi_task is guaranteed to be blocked.
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[PATCH v3 0/6] sched/deadline/rtmutex: Fix two deadline PI issues Xunlei Pang <xlpang@redhat.com> - 2016-04-14 13:40 +0200
[PATCH v3 1/6] rtmutex: Deboost before waking up the top waiter Xunlei Pang <xlpang@redhat.com> - 2016-04-14 13:40 +0200
[PATCH v3 5/6] sched/deadline/rtmutex: Fix unprotected PI access in enqueue_task_dl() Xunlei Pang <xlpang@redhat.com> - 2016-04-14 13:40 +0200
Re: [PATCH v3 5/6] sched/deadline/rtmutex: Fix unprotected PI access in enqueue_task_dl() Peter Zijlstra <peterz@infradead.org> - 2016-04-14 17:40 +0200
Re: [PATCH v3 5/6] sched/deadline/rtmutex: Fix unprotected PI access in enqueue_task_dl() Xunlei Pang <xpang@redhat.com> - 2016-04-15 04:00 +0200
Re: [PATCH v3 5/6] sched/deadline/rtmutex: Fix unprotected PI access in enqueue_task_dl() Xunlei Pang <xpang@redhat.com> - 2016-04-15 04:20 +0200
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