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Code Issues Releases Activity

Try to handle recursive attempts to raise IRQL to DISPATCH_LEVEL better

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(among other things).
This commit is contained in:
Bill Paul 2004-04-19 22:39:04 +00:00
parent 97c4c5308b
commit 1906853bd2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=128447
1 changed files with 9 additions and 1 deletions
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10
sys/compat/ndis/subr_hal.c
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@ -313,9 +313,13 @@ hal_raise_irql(/*irql*/ void)
if (irql < hal_irql())
panic("IRQL_NOT_LESS_THAN");
if (hal_irql() == DISPATCH_LEVEL)
return(DISPATCH_LEVEL);
mtx_lock_spin(&sched_lock);
oldirql = curthread->td_priority;
oldirql = curthread->td_base_pri;
sched_prio(curthread, PI_REALTIME);
curthread->td_base_pri = PI_REALTIME;
mtx_unlock_spin(&sched_lock);
return(oldirql);
@ -328,10 +332,14 @@ hal_lower_irql(/*oldirql*/ void)
__asm__ __volatile__ ("" : "=c" (oldirql));
if (oldirql == DISPATCH_LEVEL)
return;
if (hal_irql() != DISPATCH_LEVEL)
panic("IRQL_NOT_GREATER_THAN");
mtx_lock_spin(&sched_lock);
curthread->td_base_pri = oldirql;
sched_prio(curthread, oldirql);
mtx_unlock_spin(&sched_lock);