diff options
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/subr_witness.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/sys/kern/subr_witness.c b/sys/kern/subr_witness.c index 005d4e2..6d6afe8 100644 --- a/sys/kern/subr_witness.c +++ b/sys/kern/subr_witness.c @@ -1721,6 +1721,25 @@ witness_list_lock(struct lock_instance *instance) instance->li_line); } +static int +witness_thread_has_locks(struct thread *td) +{ + + return (td->td_sleeplocks != NULL); +} + +static int +witness_proc_has_locks(struct proc *p) +{ + struct thread *td; + + FOREACH_THREAD_IN_PROC(p, td) { + if (witness_thread_has_locks(td)) + return (1); + } + return (0); +} + int witness_list_locks(struct lock_list_entry **lock_list) { @@ -1917,6 +1936,29 @@ DB_SHOW_COMMAND(locks, db_witness_list) } } +DB_SHOW_COMMAND(alllocks, db_witness_list_all) +{ + struct thread *td; + struct proc *p; + + /* + * It would be nice to list only threads and processes that actually + * held sleep locks, but that information is currently not exported + * by WITNESS. + */ + FOREACH_PROC_IN_SYSTEM(p) { + if (!witness_proc_has_locks(p)) + continue; + printf("Process %d (%s)\n", p->p_pid, p->p_comm); + FOREACH_THREAD_IN_PROC(p, td) { + if (!witness_thread_has_locks(td)) + continue; + printf("Thread 0x%x\n", td->td_tid); + witness_list(td); + } + } +} + DB_SHOW_COMMAND(witness, db_witness_display) { |
