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Code Issues Releases Activity

Avoid a LOR (sleepable after non-sleepable) in

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fasttrap_tracepoint_enable().

Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Rui Paulo 2010-09-11 12:58:31 +00:00
parent 5512804bb8
commit eae81e9501
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=212465
1 changed files with 2 additions and 0 deletions
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sys/cddl/contrib/opensolaris/uts/common/dtrace/fasttrap.c
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@ -591,7 +591,9 @@ fasttrap_tracepoint_enable(proc_t *p, fasttrap_probe_t *probe, uint_t index)
* Before we make any modifications, make sure we've imposed a barrier
* on the generation in which this probe was last modified.
*/
PROC_UNLOCK(p);
fasttrap_mod_barrier(probe->ftp_gen);
PROC_LOCK(p);
bucket = &fasttrap_tpoints.fth_table[FASTTRAP_TPOINTS_INDEX(pid, pc)];