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Red Hat Bugzilla – Attachment 274001 Details for
Bug 311391
with DEBUG_PI_LIST a constantly prints out to console on futex
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updated patch to fix futex DEBUG_PI printk storm on debug -rt kernel
futex-pi-list-debug.patch (text/x-patch), 1.08 KB, created by
Clark Williams
on 2007-11-30 16:31:01 UTC
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Description:
updated patch to fix futex DEBUG_PI printk storm on debug -rt kernel
Filename:
MIME Type:
Creator:
Clark Williams
Created:
2007-11-30 16:31:01 UTC
Size:
1.08 KB
patch
obsolete
>Index: linux-2.6.21-rt-hack/kernel/futex.c >=================================================================== >--- linux-2.6.21-rt-hack.orig/kernel/futex.c >+++ linux-2.6.21-rt-hack/kernel/futex.c >@@ -933,7 +933,11 @@ retry: > plist_add(&this->list, &hb2->chain); > this->lock_ptr = &hb2->lock; > #ifdef CONFIG_DEBUG_PI_LIST >+# ifdef CONFIG_PREEMPT_RT >+ this->list.plist.lock = NULL; >+# else > this->list.plist.lock = &hb2->lock; >+# endif > #endif > } > this->key = key2; >@@ -1198,7 +1202,11 @@ static int futex_requeue(u32 __user *uad > plist_add(&this->list, &hb2->chain); > this->lock_ptr = &hb2->lock; > #ifdef CONFIG_DEBUG_PI_LIST >+# ifdef CONFIG_PREEMPT_RT >+ this->list.plist.lock = NULL; >+# else > this->list.plist.lock = &hb2->lock; >+# endif > #endif > } > this->key = key2; >@@ -1259,7 +1267,11 @@ static inline void __queue_me(struct fut > > plist_node_init(&q->list, prio); > #ifdef CONFIG_DEBUG_PI_LIST >+# ifdef CONFIG_PREEMPT_RT >+ q->list.plist.lock = NULL; >+# else > q->list.plist.lock = &hb->lock; >+# endif > #endif > plist_add(&q->list, &hb->chain); > q->task = current;
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