hi Zheng - On 8/26/19 2:55 PM, Yan, Zheng wrote: > I tracked down the bug > https://tracker.ceph.com/issues/41434
wow, that was quick - thank you for investigating. we are looking
forward for the fix :-)
in the meantime, is there anything we can do to prevent q ==
p->second.end() from happening? something along the lines of
--- a/src/mds/Locker.cc
+++ b/src/mds/Locker.cc
@@ -1867,6 +1867,8 @@ void Locker::file_update_finish(CInode *in,
MutationRef& mut, unsigned flags,
auto p = in->client_snap_caps.begin();
while (p != in->client_snap_caps.end()) {
auto q = p->second.find(client);
+ // horrible hack for zecm
+ std::this_thread::sleep_for(std::chrono::milliseconds(1));
if (q != p->second.end()) {
SimpleLock *lock = in->get_lock(p->first);
ceph_assert(lock);
thank you very much & with kind regards,
t.
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