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-rw-r--r--sys/kern/sys_process.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/kern/sys_process.c b/sys/kern/sys_process.c
index 521ba6a..c3c5414 100644
--- a/sys/kern/sys_process.c
+++ b/sys/kern/sys_process.c
@@ -647,6 +647,7 @@ kern_ptrace(struct thread *td, int req, pid_t pid, void *addr, int data)
return (error);
case PT_IO:
+ PROC_UNLOCK(p);
piod = addr;
iov.iov_base = piod->piod_addr;
iov.iov_len = piod->piod_len;
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