Hi,

I have the following BUG when doing suspend to ram with nfs mounted 
directories: this seems to be reproducible, but doesn't prevent the 
system from restarting.

Aug 13 11:10:33 q30 kernel: BUG: atomic counter underflow at:
Aug 13 11:10:33 q30 kernel:  [_atomic_dec_and_lock+24/40]
_atomic_dec_and_lock+0x18/0x28
Aug 13 11:10:33 q30 kernel:  [<c019b62c>] _atomic_dec_and_lock+0x18/0x28
Aug 13 11:10:33 q30 kernel:  [dput+34/325] dput+0x22/0x145
Aug 13 11:10:33 q30 kernel:  [<c01584dc>] dput+0x22/0x145
Aug 13 11:10:33 q30 kernel:  [<e035c6b4>] rpc_destroy_client+0xce/0xe0
[sunrpc]
Aug 13 11:10:33 q30 kernel:  [<e035c801>] rpc_shutdown_client+0xd5/0xdc
[sunrpc]
Aug 13 11:10:33 q30 kernel:  [<e035c801>] rpc_shutdown_client+0xd5/0xdc
[sunrpc]
Aug 13 11:10:33 q30 kernel:  [default_wake_function+0/12]
default_wake_function+0x0/0xc
Aug 13 11:10:33 q30 kernel:  [<c0111a40>] default_wake_function+0x0/0xc
Aug 13 11:10:33 q30 kernel:  [<e03b67d9>] nfs_free_client+0x8e/0xd3 [nfs]
Aug 13 11:10:33 q30 kernel:  [<e03b6a94>] nfs_free_server+0xa5/0xd3 [nfs]
Aug 13 11:10:33 q30 kernel:  [deactivate_super+74/93]
deactivate_super+0x4a/0x5d
Aug 13 11:10:33 q30 kernel:  [<c014b531>] deactivate_super+0x4a/0x5d
Aug 13 11:10:33 q30 kernel:  [sys_umount+425/455] sys_umount+0x1a9/0x1c7
Aug 13 11:10:33 q30 kernel:  [<c015c558>] sys_umount+0x1a9/0x1c7
Aug 13 11:10:33 q30 kernel:  [destroy_inode+40/55] destroy_inode+0x28/0x37
Aug 13 11:10:33 q30 kernel:  [<c01594bc>] destroy_inode+0x28/0x37
Aug 13 11:10:33 q30 kernel:  [dput+34/325] dput+0x22/0x145
Aug 13 11:10:33 q30 kernel:  [<c01584dc>] dput+0x22/0x145
Aug 13 11:10:33 q30 kernel:  [__fput+302/342] __fput+0x12e/0x156
Aug 13 11:10:33 q30 kernel:  [<c01472ed>] __fput+0x12e/0x156
Aug 13 11:10:33 q30 kernel:  [mntput_no_expire+17/78]
mntput_no_expire+0x11/0x4e
Aug 13 11:10:33 q30 kernel:  [<c015b60c>] mntput_no_expire+0x11/0x4e
Aug 13 11:10:33 q30 kernel:  [filp_close+78/84] filp_close+0x4e/0x54
Aug 13 11:10:33 q30 kernel:  [<c0144ddc>] filp_close+0x4e/0x54
Aug 13 11:10:33 q30 kernel:  [sysenter_past_esp+86/121]
sysenter_past_esp+0x56/0x79
Aug 13 11:10:33 q30 kernel:  [<c0102a11>] sysenter_past_esp+0x56/0x79
Aug 13 11:10:33 q30 kernel:  =======================

config is attached.
This is on a Samsung Q30 laptop.
I can send more details if needed.

Thanks,
-- 
Jean-Denis Girard

SysNux                  Systèmes Linux en Polynésie française
http://www.sysnux.pf/   Tél: +689 483 527 / GSM: +689 797 527