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-rw-r--r--fs/dlm/lock.c241
-rw-r--r--fs/dlm/lock.h3
-rw-r--r--fs/dlm/recoverd.c6
-rw-r--r--fs/dlm/requestqueue.c4
4 files changed, 164 insertions, 90 deletions
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 49926f1df23..f3ba70301a4 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -160,11 +160,11 @@ static const int __quecvt_compat_matrix[8][8] = {
void dlm_print_lkb(struct dlm_lkb *lkb)
{
- printk(KERN_ERR "lkb: nodeid %d id %x remid %x exflags %x flags %x\n"
- " status %d rqmode %d grmode %d wait_type %d\n",
+ printk(KERN_ERR "lkb: nodeid %d id %x remid %x exflags %x flags %x "
+ "sts %d rq %d gr %d wait_type %d wait_nodeid %d\n",
lkb->lkb_nodeid, lkb->lkb_id, lkb->lkb_remid, lkb->lkb_exflags,
lkb->lkb_flags, lkb->lkb_status, lkb->lkb_rqmode,
- lkb->lkb_grmode, lkb->lkb_wait_type);
+ lkb->lkb_grmode, lkb->lkb_wait_type, lkb->lkb_wait_nodeid);
}
static void dlm_print_rsb(struct dlm_rsb *r)
@@ -589,6 +589,23 @@ static int find_rsb(struct dlm_ls *ls, char *name, int namelen,
return error;
}
+static void dlm_dump_rsb_hash(struct dlm_ls *ls, uint32_t hash)
+{
+ struct rb_node *n;
+ struct dlm_rsb *r;
+ int i;
+
+ for (i = 0; i < ls->ls_rsbtbl_size; i++) {
+ spin_lock(&ls->ls_rsbtbl[i].lock);
+ for (n = rb_first(&ls->ls_rsbtbl[i].keep); n; n = rb_next(n)) {
+ r = rb_entry(n, struct dlm_rsb, res_hashnode);
+ if (r->res_hash == hash)
+ dlm_dump_rsb(r);
+ }
+ spin_unlock(&ls->ls_rsbtbl[i].lock);
+ }
+}
+
/* This is only called to add a reference when the code already holds
a valid reference to the rsb, so there's no need for locking. */
@@ -1067,8 +1084,9 @@ static int _remove_from_waiters(struct dlm_lkb *lkb, int mstype,
goto out_del;
}
- log_error(ls, "remwait error %x reply %d flags %x no wait_type",
- lkb->lkb_id, mstype, lkb->lkb_flags);
+ log_error(ls, "remwait error %x remote %d %x msg %d flags %x no wait",
+ lkb->lkb_id, ms ? ms->m_header.h_nodeid : 0, lkb->lkb_remid,
+ mstype, lkb->lkb_flags);
return -1;
out_del:
@@ -3375,7 +3393,7 @@ static int validate_message(struct dlm_lkb *lkb, struct dlm_message *ms)
return error;
}
-static void receive_request(struct dlm_ls *ls, struct dlm_message *ms)
+static int receive_request(struct dlm_ls *ls, struct dlm_message *ms)
{
struct dlm_lkb *lkb;
struct dlm_rsb *r;
@@ -3415,14 +3433,15 @@ static void receive_request(struct dlm_ls *ls, struct dlm_message *ms)
error = 0;
if (error)
dlm_put_lkb(lkb);
- return;
+ return 0;
fail:
setup_stub_lkb(ls, ms);
send_request_reply(&ls->ls_stub_rsb, &ls->ls_stub_lkb, error);
+ return error;
}
-static void receive_convert(struct dlm_ls *ls, struct dlm_message *ms)
+static int receive_convert(struct dlm_ls *ls, struct dlm_message *ms)
{
struct dlm_lkb *lkb;
struct dlm_rsb *r;
@@ -3432,6 +3451,14 @@ static void receive_convert(struct dlm_ls *ls, struct dlm_message *ms)
if (error)
goto fail;
+ if (lkb->lkb_remid != ms->m_lkid) {
+ log_error(ls, "receive_convert %x remid %x remote %d %x",
+ lkb->lkb_id, lkb->lkb_remid,
+ ms->m_header.h_nodeid, ms->m_lkid);
+ error = -ENOENT;
+ goto fail;
+ }
+
r = lkb->lkb_resource;
hold_rsb(r);
@@ -3459,14 +3486,15 @@ static void receive_convert(struct dlm_ls *ls, struct dlm_message *ms)
unlock_rsb(r);
put_rsb(r);
dlm_put_lkb(lkb);
- return;
+ return 0;
fail:
setup_stub_lkb(ls, ms);
send_convert_reply(&ls->ls_stub_rsb, &ls->ls_stub_lkb, error);
+ return error;
}
-static void receive_unlock(struct dlm_ls *ls, struct dlm_message *ms)
+static int receive_unlock(struct dlm_ls *ls, struct dlm_message *ms)
{
struct dlm_lkb *lkb;
struct dlm_rsb *r;
@@ -3476,6 +3504,14 @@ static void receive_unlock(struct dlm_ls *ls, struct dlm_message *ms)
if (error)
goto fail;
+ if (lkb->lkb_remid != ms->m_lkid) {
+ log_error(ls, "receive_unlock %x remid %x remote %d %x",
+ lkb->lkb_id, lkb->lkb_remid,
+ ms->m_header.h_nodeid, ms->m_lkid);
+ error = -ENOENT;
+ goto fail;
+ }
+
r = lkb->lkb_resource;
hold_rsb(r);
@@ -3500,14 +3536,15 @@ static void receive_unlock(struct dlm_ls *ls, struct dlm_message *ms)
unlock_rsb(r);
put_rsb(r);
dlm_put_lkb(lkb);
- return;
+ return 0;
fail:
setup_stub_lkb(ls, ms);
send_unlock_reply(&ls->ls_stub_rsb, &ls->ls_stub_lkb, error);
+ return error;
}
-static void receive_cancel(struct dlm_ls *ls, struct dlm_message *ms)
+static int receive_cancel(struct dlm_ls *ls, struct dlm_message *ms)
{
struct dlm_lkb *lkb;
struct dlm_rsb *r;
@@ -3535,25 +3572,23 @@ static void receive_cancel(struct dlm_ls *ls, struct dlm_message *ms)
unlock_rsb(r);
put_rsb(r);
dlm_put_lkb(lkb);
- return;
+ return 0;
fail:
setup_stub_lkb(ls, ms);
send_cancel_reply(&ls->ls_stub_rsb, &ls->ls_stub_lkb, error);
+ return error;
}
-static void receive_grant(struct dlm_ls *ls, struct dlm_message *ms)
+static int receive_grant(struct dlm_ls *ls, struct dlm_message *ms)
{
struct dlm_lkb *lkb;
struct dlm_rsb *r;
int error;
error = find_lkb(ls, ms->m_remid, &lkb);
- if (error) {
- log_debug(ls, "receive_grant from %d no lkb %x",
- ms->m_header.h_nodeid, ms->m_remid);
- return;
- }
+ if (error)
+ return error;
r = lkb->lkb_resource;
@@ -3573,20 +3608,18 @@ static void receive_grant(struct dlm_ls *ls, struct dlm_message *ms)
unlock_rsb(r);
put_rsb(r);
dlm_put_lkb(lkb);
+ return 0;
}
-static void receive_bast(struct dlm_ls *ls, struct dlm_message *ms)
+static int receive_bast(struct dlm_ls *ls, struct dlm_message *ms)
{
struct dlm_lkb *lkb;
struct dlm_rsb *r;
int error;
error = find_lkb(ls, ms->m_remid, &lkb);
- if (error) {
- log_debug(ls, "receive_bast from %d no lkb %x",
- ms->m_header.h_nodeid, ms->m_remid);
- return;
- }
+ if (error)
+ return error;
r = lkb->lkb_resource;
@@ -3602,6 +3635,7 @@ static void receive_bast(struct dlm_ls *ls, struct dlm_message *ms)
unlock_rsb(r);
put_rsb(r);
dlm_put_lkb(lkb);
+ return 0;
}
static void receive_lookup(struct dlm_ls *ls, struct dlm_message *ms)
@@ -3656,18 +3690,15 @@ static void receive_purge(struct dlm_ls *ls, struct dlm_message *ms)
do_purge(ls, ms->m_nodeid, ms->m_pid);
}
-static void receive_request_reply(struct dlm_ls *ls, struct dlm_message *ms)
+static int receive_request_reply(struct dlm_ls *ls, struct dlm_message *ms)
{
struct dlm_lkb *lkb;
struct dlm_rsb *r;
int error, mstype, result;
error = find_lkb(ls, ms->m_remid, &lkb);
- if (error) {
- log_debug(ls, "receive_request_reply from %d no lkb %x",
- ms->m_header.h_nodeid, ms->m_remid);
- return;
- }
+ if (error)
+ return error;
r = lkb->lkb_resource;
hold_rsb(r);
@@ -3758,6 +3789,7 @@ static void receive_request_reply(struct dlm_ls *ls, struct dlm_message *ms)
unlock_rsb(r);
put_rsb(r);
dlm_put_lkb(lkb);
+ return 0;
}
static void __receive_convert_reply(struct dlm_rsb *r, struct dlm_lkb *lkb,
@@ -3796,8 +3828,11 @@ static void __receive_convert_reply(struct dlm_rsb *r, struct dlm_lkb *lkb,
break;
default:
- log_error(r->res_ls, "receive_convert_reply %x error %d",
- lkb->lkb_id, ms->m_result);
+ log_error(r->res_ls, "receive_convert_reply %x remote %d %x %d",
+ lkb->lkb_id, ms->m_header.h_nodeid, ms->m_lkid,
+ ms->m_result);
+ dlm_print_rsb(r);
+ dlm_print_lkb(lkb);
}
}
@@ -3824,20 +3859,18 @@ static void _receive_convert_reply(struct dlm_lkb *lkb, struct dlm_message *ms)
put_rsb(r);
}
-static void receive_convert_reply(struct dlm_ls *ls, struct dlm_message *ms)
+static int receive_convert_reply(struct dlm_ls *ls, struct dlm_message *ms)
{
struct dlm_lkb *lkb;
int error;
error = find_lkb(ls, ms->m_remid, &lkb);
- if (error) {
- log_debug(ls, "receive_convert_reply from %d no lkb %x",
- ms->m_header.h_nodeid, ms->m_remid);
- return;
- }
+ if (error)
+ return error;
_receive_convert_reply(lkb, ms);
dlm_put_lkb(lkb);
+ return 0;
}
static void _receive_unlock_reply(struct dlm_lkb *lkb, struct dlm_message *ms)
@@ -3876,20 +3909,18 @@ static void _receive_unlock_reply(struct dlm_lkb *lkb, struct dlm_message *ms)
put_rsb(r);
}
-static void receive_unlock_reply(struct dlm_ls *ls, struct dlm_message *ms)
+static int receive_unlock_reply(struct dlm_ls *ls, struct dlm_message *ms)
{
struct dlm_lkb *lkb;
int error;
error = find_lkb(ls, ms->m_remid, &lkb);
- if (error) {
- log_debug(ls, "receive_unlock_reply from %d no lkb %x",
- ms->m_header.h_nodeid, ms->m_remid);
- return;
- }
+ if (error)
+ return error;
_receive_unlock_reply(lkb, ms);
dlm_put_lkb(lkb);
+ return 0;
}
static void _receive_cancel_reply(struct dlm_lkb *lkb, struct dlm_message *ms)
@@ -3928,20 +3959,18 @@ static void _receive_cancel_reply(struct dlm_lkb *lkb, struct dlm_message *ms)
put_rsb(r);
}
-static void receive_cancel_reply(struct dlm_ls *ls, struct dlm_message *ms)
+static int receive_cancel_reply(struct dlm_ls *ls, struct dlm_message *ms)
{
struct dlm_lkb *lkb;
int error;
error = find_lkb(ls, ms->m_remid, &lkb);
- if (error) {
- log_debug(ls, "receive_cancel_reply from %d no lkb %x",
- ms->m_header.h_nodeid, ms->m_remid);
- return;
- }
+ if (error)
+ return error;
_receive_cancel_reply(lkb, ms);
dlm_put_lkb(lkb);
+ return 0;
}
static void receive_lookup_reply(struct dlm_ls *ls, struct dlm_message *ms)
@@ -3952,7 +3981,7 @@ static void receive_lookup_reply(struct dlm_ls *ls, struct dlm_message *ms)
error = find_lkb(ls, ms->m_lkid, &lkb);
if (error) {
- log_error(ls, "receive_lookup_reply no lkb");
+ log_error(ls, "receive_lookup_reply no lkid %x", ms->m_lkid);
return;
}
@@ -3996,8 +4025,11 @@ static void receive_lookup_reply(struct dlm_ls *ls, struct dlm_message *ms)
dlm_put_lkb(lkb);
}
-static void _receive_message(struct dlm_ls *ls, struct dlm_message *ms)
+static void _receive_message(struct dlm_ls *ls, struct dlm_message *ms,
+ uint32_t saved_seq)
{
+ int error = 0, noent = 0;
+
if (!dlm_is_member(ls, ms->m_header.h_nodeid)) {
log_debug(ls, "ignore non-member message %d from %d %x %x %d",
ms->m_type, ms->m_header.h_nodeid, ms->m_lkid,
@@ -4010,47 +4042,50 @@ static void _receive_message(struct dlm_ls *ls, struct dlm_message *ms)
/* messages sent to a master node */
case DLM_MSG_REQUEST:
- receive_request(ls, ms);
+ error = receive_request(ls, ms);
break;
case DLM_MSG_CONVERT:
- receive_convert(ls, ms);
+ error = receive_convert(ls, ms);
break;
case DLM_MSG_UNLOCK:
- receive_unlock(ls, ms);
+ error = receive_unlock(ls, ms);
break;
case DLM_MSG_CANCEL:
- receive_cancel(ls, ms);
+ noent = 1;
+ error = receive_cancel(ls, ms);
break;
/* messages sent from a master node (replies to above) */
case DLM_MSG_REQUEST_REPLY:
- receive_request_reply(ls, ms);
+ error = receive_request_reply(ls, ms);
break;
case DLM_MSG_CONVERT_REPLY:
- receive_convert_reply(ls, ms);
+ error = receive_convert_reply(ls, ms);
break;
case DLM_MSG_UNLOCK_REPLY:
- receive_unlock_reply(ls, ms);
+ error = receive_unlock_reply(ls, ms);
break;
case DLM_MSG_CANCEL_REPLY:
- receive_cancel_reply(ls, ms);
+ error = receive_cancel_reply(ls, ms);
break;
/* messages sent from a master node (only two types of async msg) */
case DLM_MSG_GRANT:
- receive_grant(ls, ms);
+ noent = 1;
+ error = receive_grant(ls, ms);
break;
case DLM_MSG_BAST:
- receive_bast(ls, ms);
+ noent = 1;
+ error = receive_bast(ls, ms);
break;
/* messages sent to a dir node */
@@ -4078,6 +4113,30 @@ static void _receive_message(struct dlm_ls *ls, struct dlm_message *ms)
default:
log_error(ls, "unknown message type %d", ms->m_type);
}
+
+ /*
+ * When checking for ENOENT, we're checking the result of
+ * find_lkb(m_remid):
+ *
+ * The lock id referenced in the message wasn't found. This may
+ * happen in normal usage for the async messages and cancel, so
+ * only use log_debug for them.
+ *
+ * Other errors are expected and normal.
+ */
+
+ if (error == -ENOENT && noent) {
+ log_debug(ls, "receive %d no %x remote %d %x seq %u",
+ ms->m_type, ms->m_remid, ms->m_header.h_nodeid,
+ ms->m_lkid, saved_seq);
+ } else if (error == -ENOENT) {
+ log_error(ls, "receive %d no %x remote %d %x seq %u",
+ ms->m_type, ms->m_remid, ms->m_header.h_nodeid,
+ ms->m_lkid, saved_seq);
+
+ if (ms->m_type == DLM_MSG_CONVERT)
+ dlm_dump_rsb_hash(ls, ms->m_hash);
+ }
}
/* If the lockspace is in recovery mode (locking stopped), then normal
@@ -4095,16 +4154,17 @@ static void dlm_receive_message(struct dlm_ls *ls, struct dlm_message *ms,
dlm_add_requestqueue(ls, nodeid, ms);
} else {
dlm_wait_requestqueue(ls);
- _receive_message(ls, ms);
+ _receive_message(ls, ms, 0);
}
}
/* This is called by dlm_recoverd to process messages that were saved on
the requestqueue. */
-void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms)
+void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms,
+ uint32_t saved_seq)
{
- _receive_message(ls, ms);
+ _receive_message(ls, ms, saved_seq);
}
/* This is called by the midcomms layer when something is received for
@@ -4653,6 +4713,7 @@ int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
struct rcom_lock *rl = (struct rcom_lock *) rc->rc_buf;
struct dlm_rsb *r;
struct dlm_lkb *lkb;
+ uint32_t remid = 0;
int error;
if (rl->rl_parent_lkid) {
@@ -4660,6 +4721,8 @@ int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
goto out;
}
+ remid = le32_to_cpu(rl->rl_lkid);
+
error = find_rsb(ls, rl->rl_name, le16_to_cpu(rl->rl_namelen),
R_MASTER, &r);
if (error)
@@ -4667,7 +4730,7 @@ int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
lock_rsb(r);
- lkb = search_remid(r, rc->rc_header.h_nodeid, le32_to_cpu(rl->rl_lkid));
+ lkb = search_remid(r, rc->rc_header.h_nodeid, remid);
if (lkb) {
error = -EEXIST;
goto out_remid;
@@ -4696,9 +4759,9 @@ int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
unlock_rsb(r);
put_rsb(r);
out:
- if (error)
- log_debug(ls, "recover_master_copy %d %x", error,
- le32_to_cpu(rl->rl_lkid));
+ if (error && error != -EEXIST)
+ log_debug(ls, "dlm_recover_master_copy remote %d %x error %d",
+ rc->rc_header.h_nodeid, remid, error);
rl->rl_result = cpu_to_le32(error);
return error;
}
@@ -4709,41 +4772,49 @@ int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
struct rcom_lock *rl = (struct rcom_lock *) rc->rc_buf;
struct dlm_rsb *r;
struct dlm_lkb *lkb;
- int error;
+ uint32_t lkid, remid;
+ int error, result;
+
+ lkid = le32_to_cpu(rl->rl_lkid);
+ remid = le32_to_cpu(rl->rl_remid);
+ result = le32_to_cpu(rl->rl_result);
- error = find_lkb(ls, le32_to_cpu(rl->rl_lkid), &lkb);
+ error = find_lkb(ls, lkid, &lkb);
if (error) {
- log_error(ls, "recover_process_copy no lkid %x",
- le32_to_cpu(rl->rl_lkid));
+ log_error(ls, "dlm_recover_process_copy no %x remote %d %x %d",
+ lkid, rc->rc_header.h_nodeid, remid, result);
return error;
}
- DLM_ASSERT(is_process_copy(lkb), dlm_print_lkb(lkb););
-
- error = le32_to_cpu(rl->rl_result);
+ if (!is_process_copy(lkb)) {
+ log_error(ls, "dlm_recover_process_copy bad %x remote %d %x %d",
+ lkid, rc->rc_header.h_nodeid, remid, result);
+ dlm_print_lkb(lkb);
+ return -EINVAL;
+ }
r = lkb->lkb_resource;
hold_rsb(r);
lock_rsb(r);
- switch (error) {
+ switch (result) {
case -EBADR:
/* There's a chance the new master received our lock before
dlm_recover_master_reply(), this wouldn't happen if we did
a barrier between recover_masters and recover_locks. */
- log_debug(ls, "master copy not ready %x r %lx %s", lkb->lkb_id,
- (unsigned long)r, r->res_name);
+
+ log_debug(ls, "dlm_recover_process_copy %x remote %d %x %d",
+ lkid, rc->rc_header.h_nodeid, remid, result);
+
dlm_send_rcom_lock(r, lkb);
goto out;
case -EEXIST:
- log_debug(ls, "master copy exists %x", lkb->lkb_id);
- /* fall through */
case 0:
- lkb->lkb_remid = le32_to_cpu(rl->rl_remid);
+ lkb->lkb_remid = remid;
break;
default:
- log_error(ls, "dlm_recover_process_copy unknown error %d %x",
- error, lkb->lkb_id);
+ log_error(ls, "dlm_recover_process_copy %x remote %d %x %d unk",
+ lkid, rc->rc_header.h_nodeid, remid, result);
}
/* an ack for dlm_recover_locks() which waits for replies from
diff --git a/fs/dlm/lock.h b/fs/dlm/lock.h
index 1a255307f6f..56e2bc64656 100644
--- a/fs/dlm/lock.h
+++ b/fs/dlm/lock.h
@@ -15,7 +15,8 @@
void dlm_dump_rsb(struct dlm_rsb *r);
void dlm_print_lkb(struct dlm_lkb *lkb);
-void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms);
+void dlm_receive_message_saved(struct dlm_ls *ls, struct dlm_message *ms,
+ uint32_t saved_seq);
void dlm_receive_buffer(union dlm_packet *p, int nodeid);
int dlm_modes_compat(int mode1, int mode2);
void dlm_put_rsb(struct dlm_rsb *r);
diff --git a/fs/dlm/recoverd.c b/fs/dlm/recoverd.c
index 3780caf7ae0..11351b57c78 100644
--- a/fs/dlm/recoverd.c
+++ b/fs/dlm/recoverd.c
@@ -54,7 +54,7 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
unsigned long start;
int error, neg = 0;
- log_debug(ls, "dlm_recover %llx", (unsigned long long)rv->seq);
+ log_debug(ls, "dlm_recover %llu", (unsigned long long)rv->seq);
mutex_lock(&ls->ls_recoverd_active);
@@ -227,7 +227,7 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
dlm_grant_after_purge(ls);
- log_debug(ls, "dlm_recover %llx generation %u done: %u ms",
+ log_debug(ls, "dlm_recover %llu generation %u done: %u ms",
(unsigned long long)rv->seq, ls->ls_generation,
jiffies_to_msecs(jiffies - start));
mutex_unlock(&ls->ls_recoverd_active);
@@ -237,7 +237,7 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
fail:
dlm_release_root_list(ls);
- log_debug(ls, "dlm_recover %llx error %d",
+ log_debug(ls, "dlm_recover %llu error %d",
(unsigned long long)rv->seq, error);
mutex_unlock(&ls->ls_recoverd_active);
return error;
diff --git a/fs/dlm/requestqueue.c b/fs/dlm/requestqueue.c
index a44fa22890e..d3191bf03a6 100644
--- a/fs/dlm/requestqueue.c
+++ b/fs/dlm/requestqueue.c
@@ -19,6 +19,7 @@
struct rq_entry {
struct list_head list;
+ uint32_t recover_seq;
int nodeid;
struct dlm_message request;
};
@@ -41,6 +42,7 @@ void dlm_add_requestqueue(struct dlm_ls *ls, int nodeid, struct dlm_message *ms)
return;
}
+ e->recover_seq = ls->ls_recover_seq & 0xFFFFFFFF;
e->nodeid = nodeid;
memcpy(&e->request, ms, ms->m_header.h_length);
@@ -76,7 +78,7 @@ int dlm_process_requestqueue(struct dlm_ls *ls)
e = list_entry(ls->ls_requestqueue.next, struct rq_entry, list);
mutex_unlock(&ls->ls_requestqueue_mutex);
- dlm_receive_message_saved(ls, &e->request);
+ dlm_receive_message_saved(ls, &e->request, e->recover_seq);
mutex_lock(&ls->ls_requestqueue_mutex);
list_del(&e->list);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-23 10:56:29 +0000