fasttrap_fork(): unlock the processes before removing the tracepoints.
In the future, we'll need to come up with new proc_*() functions that accept locked processes. For now, this prevents postgresql + DTrace from crashing the system. MFC after: 1 month
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=254198
@ -502,7 +502,13 @@ fasttrap_fork(proc_t *p, proc_t *cp)
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sprlock_proc(cp);
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mtx_unlock_spin(&cp->p_slock);
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#else
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/*
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* fasttrap_tracepoint_remove() expects the child process to be
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* unlocked and the VM then expects curproc to be unlocked.
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*/
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_PHOLD(cp);
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PROC_UNLOCK(cp);
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PROC_UNLOCK(p);
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#endif
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/*
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@ -537,6 +543,8 @@ fasttrap_fork(proc_t *p, proc_t *cp)
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mutex_enter(&cp->p_lock);
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sprunlock(cp);
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#else
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PROC_LOCK(p);
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PROC_LOCK(cp);
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_PRELE(cp);
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#endif
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}
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