[pnfs] Re-running Connecathon tests on origin/nfs41 latest

[William A. (Andy) Adamson]

I can't reproduce this problem. I just ran the connectathon tests 8 times
over 4.1 without umounting in between. No session recovery code was ever
hit.

-->Andy


----------- from bhalevy at panasas.com -----------
The third might be related and is more serious.
Reproducable when running the cthon test twice over 4.1
(without umounting in between). session recovery hits this:

Jun 25 16:02:39 buml kernel: Got error -10052 from the server on
DESTROY_SESSION
. Session has been destroyed regardless...
Jun 25 16:02:39 buml kernel: Error: session recovery failed on NFSv4.1
server wi
th error -10022
Jun 25 16:02:39 buml kernel: ------------[ cut here ]------------
Jun 25 16:02:39 buml kernel: WARNING: at
/usr0/export/dev/bhalevy/git/linux-pnfs
-bh-nfs41/fs/nfs/nfs4proc.c:4566 nfs4_proc_create_session+0x3bc/0x575
[nfs]()
Jun 25 16:02:39 buml kernel: Modules linked in: nfsd auth_rpcgss exportfs
nfs lo
ckd nfs_acl sunrpc
Jun 25 16:02:39 buml kernel: Call Trace:
Jun 25 16:02:39 buml kernel: 6e899c98:  [<6002f471>]
warn_on_slowpath+0x54/0x8e
Jun 25 16:02:39 buml kernel: 6e899cc8:  [<60005d73>]
free_bootmem_core+0x63/0xd4
Jun 25 16:02:39 buml kernel: 6e899cd8:  [<6005800f>] mempool_free+0x75/0x7d
Jun 25 16:02:39 buml kernel: 6e899d28:  [<7103cd7c>]
nfs4_proc_create_session+0x2fa/0x575 [nfs]
Jun 25 16:02:39 buml kernel: 6e899d38:  [<60073e8c>]
cache_alloc_debugcheck_after+0x110/0x1b2
Jun 25 16:02:39 buml kernel: 6e899d68:  [<7103cd7c>]
nfs4_proc_create_session+0x2fa/0x575 [nfs]
Jun 25 16:02:39 buml kernel: 6e899db8:  [<7103ce3e>]
nfs4_proc_create_session+0x3bc/0x575 [nfs]
Jun 25 16:02:39 buml kernel: 6e899e68:  [<7104d1d4>]
session_reclaimer+0x0/0x154 [nfs]
Jun 25 16:02:39 buml kernel: 6e899ed8:  [<7104d287>]
session_reclaimer+0xb3/0x154 [nfs]
Jun 25 16:02:39 buml kernel: 6e899ef8:  [<7104d1d4>]
session_reclaimer+0x0/0x154 [nfs]
Jun 25 16:02:39 buml kernel: 6e899f08:  [<60042f54>] kthread+0x56/0x8f
Jun 25 16:02:39 buml kernel: 6e899f48:  [<60021cc9>]
run_kernel_thread+0x41/0x4a
Jun 25 16:02:39 buml kernel: 6e899f58:  [<60042efe>] kthread+0x0/0x8f
Jun 25 16:02:39 buml kernel: 6e899f98:  [<60021cb0>]
run_kernel_thread+0x28/0x4a
Jun 25 16:02:39 buml kernel: 6e899fc8:  [<60013829>]
new_thread_handler+0x72/0x9c
Jun 25 16:02:39 buml kernel:
Jun 25 16:02:39 buml kernel: ---[ end trace 59c37dcd76de288e ]---

and although this is a WARN_ON the machince never really recovers.
Benny
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