Ceph

10/15/2019

05:25 PM Linux kernel client Bug #42331 (New): fscache: possible circular locking dependency detected

Got this lockdep pop soon after kicking off an xfstests run:...

10:36 AM Linux kernel client Bug #42288: ceph:: kernel BUG at mm/slub.c:3901!

Yanhu Cao wrote:
> No coredump file.
>
Too bad. That would help expedite this.
>
> It should be related t...

10/14/2019

06:33 PM fs Feature #39129: create mechanism to delegate ranges of inode numbers to client

That would make it a little simpler, but it's not really that big a deal to track an arbitrary interval_set. We have ...

05:57 PM fs Feature #39129: create mechanism to delegate ranges of inode numbers to client

I added a patch that makes the MDS encode it as part of the "extra" info that gets tacked onto the create reply. I th...

02:51 PM Linux kernel client Bug #42288: ceph:: kernel BUG at mm/slub.c:3901!

Do you have a coredump and a way to analyze it?
If so, then it'd be good to track down the msg and see what you ca...

12:56 PM Linux kernel client Bug #41519: kclient: crashed due to dentry still in use on umount

This kernel is missing a whole pile of dentry handling fixes that got backported in -701.el7. I'd recommend updating ...

12:47 PM Linux kernel client Bug #42288: ceph:: kernel BUG at mm/slub.c:3901!

Do you have a way to reproduce this at will?
If you have the debug symbols, you may be able to open the module wit...

11:03 AM Linux kernel client Bug #42288: ceph:: kernel BUG at mm/slub.c:3901!

Ilya Dryomov wrote:
> I think you meant con->private. That check is bogus, con->private is set when ceph_connection...

10:07 AM Linux kernel client Bug #42288: ceph:: kernel BUG at mm/slub.c:3901!

(cc'ing Ilya since he knows this code better)
I don't know the mon code as well, but the monitor dispatch function...

10/12/2019

09:56 PM Linux kernel client Bug #42288: ceph:: kernel BUG at mm/slub.c:3901!

Looks like slabcache corruption at first glance, or maybe a bogus pointer got passed to kfree. 4.19.15 is pretty old ...