system/freebsd-src
system/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src synced 2024-09-30 13:44:55 +00:00
Code Issues Packages Projects Releases Wiki Activity

ddb(4): show lockchain: Don't dereference LK_KERNPROC

Browse source 
Also, print a little more information for otherwise unhandled inhibited states.

Finally, improve the grammar of some prints.  Some of the print statements
missing verb.

Sponsored by:	Dell EMC Isilon
This commit is contained in:
Conrad Meyer 2020-04-02 20:47:51 +00:00
parent 66bc03d415
commit 1e9ee2b596
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=359581
1 changed files with 9 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
sys/kern/subr_turnstile.c
View file

@ -1180,17 +1180,21 @@ print_lockchain(struct thread *td, const char *prefix)
* blocked on a lock that has an owner.
*/
while (!db_pager_quit) {
db_printf("%sthread %d (pid %d, %s) ", prefix, td->td_tid,
if (td == (void *)LK_KERNPROC) {
db_printf("%sdisowned (LK_KERNPROC)\n", prefix);
return;
}
db_printf("%sthread %d (pid %d, %s) is ", prefix, td->td_tid,
td->td_proc->p_pid, td->td_name);
switch (td->td_state) {
case TDS_INACTIVE:
db_printf("is inactive\n");
db_printf("inactive\n");
return;
case TDS_CAN_RUN:
db_printf("can run\n");
db_printf("runnable\n");
return;
case TDS_RUNQ:
db_printf("is on a run queue\n");
db_printf("on a run queue\n");
return;
case TDS_RUNNING:
db_printf("running on CPU %d\n", td->td_oncpu);
@ -1218,7 +1222,7 @@ print_lockchain(struct thread *td, const char *prefix)
td = owner;
break;
}
db_printf("inhibited\n");
db_printf("inhibited: %s\n", KTDSTATE(td));
return;
default:
db_printf("??? (%#x)\n", td->td_state);