On Wed, 2007-04-25 at 14:18 +0900, Tejun Heo wrote:
> Miles Lane wrote:
> > [ 59.677312] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state
> > recovery directory
> > [ 59.688633] NFSD: starting 90-second grace period
> > [ 60.221454]
> > [ 60.221456] =============================================
> > [ 60.221461] [ INFO: possible recursive locking detected ]
> > [ 60.221464] 2.6.21-rc7-mm1 #53
> > [ 60.221466] ---------------------------------------------
> > [ 60.221469] S20powernowd/3584 is trying to acquire lock:
> > [ 60.221472] (&sd->s_active){----}, at: [<c01a2436>]
> > sysfs_hash_and_remove+0x91/0x10e
> > [ 60.221486]
> > [ 60.221487] but task is already holding lock:
> > [ 60.221489] (&sd->s_active){----}, at: [<c01a2a20>]
> > sysfs_write_file+0xb9/0x14a
> > [ 60.221496]
> > [ 60.221497] other info that might help us debug this:
> > [ 60.221499] 4 locks held by S20powernowd/3584:
> > [ 60.221501] #0: (&sd->s_active){----}, at: [<c01a2a20>]
> > sysfs_write_file+0xb9/0x14a
> > [ 60.221508] #1: (&sd->s_active){----}, at: [<c01a2a32>]
> > sysfs_write_file+0xcb/0x14a
> > [ 60.221515] #2: (&per_cpu(cpu_policy_rwsem, cpu)){--..}, at:
> > [<c024081b>] lock_policy_rwsem_write+0x20/0x37
> > [ 60.221524] #3: (userspace_mutex){--..}, at: [<c0299dfe>]
> > mutex_lock+0x1f/0x23
>
> Thanks for reporting. We need to separate s_active users into two
> classes - one for r/w the other for deleting for nodes which delete
> other nodes when written to. Will post a patch soon.
>
I'm still getting this, with or without this patch applied. After this,
none of the ethernet cards work.
eth0 renamed to eth54
BUG: atomic counter underflow at:
[<c0104378>] show_trace_log_lvl+0x1a/0x30
[<c0104ec9>] show_trace+0x12/0x14
[<c0104f22>] dump_stack+0x16/0x18
[<c01bd575>] _atomic_dec_and_lock+0x29/0x4c
[<c0174388>] dput+0x34/0x103
[<c019d181>] sysfs_drop_dentry+0x141/0x149
[<c019d212>] sysfs_hash_and_remove+0x89/0x10e
[<c019f1fc>] sysfs_remove_link+0xe/0x10
[<c0221839>] device_rename+0x110/0x181
[<c025420a>] dev_change_name+0x11e/0x1ca
[<c02545e6>] dev_ifsioc+0x330/0x3d7
[<c0254d25>] dev_ioctl+0x350/0x46e
[<c0249792>] sock_ioctl+0x1be/0x1ca
[<c016f3c0>] do_ioctl+0x1c/0x53
[<c016f5e3>] vfs_ioctl+0x1ec/0x203
[<c016f643>] sys_ioctl+0x49/0x62
[<c0103cde>] sysenter_past_esp+0x5f/0x99
=======================
eth1 renamed to eth44
BUG: atomic counter underflow at:
[<c0104378>] show_trace_log_lvl+0x1a/0x30
[<c0104ec9>] show_trace+0x12/0x14
[<c0104f22>] dump_stack+0x16/0x18
[<c01bd575>] _atomic_dec_and_lock+0x29/0x4c
[<c0174388>] dput+0x34/0x103
[<c019d181>] sysfs_drop_dentry+0x141/0x149
[<c019d212>] sysfs_hash_and_remove+0x89/0x10e
[<c019f1fc>] sysfs_remove_link+0xe/0x10
[<c0221839>] device_rename+0x110/0x181
[<c025420a>] dev_change_name+0x11e/0x1ca
[<c02545e6>] dev_ifsioc+0x330/0x3d7
[<c0254d25>] dev_ioctl+0x350/0x46e
[<c0249792>] sock_ioctl+0x1be/0x1ca
[<c016f3c0>] do_ioctl+0x1c/0x53
[<c016f5e3>] vfs_ioctl+0x1ec/0x203
[<c016f643>] sys_ioctl+0x49/0x62
[<c0103cde>] sysenter_past_esp+0x5f/0x99
=======================
ACPI: PCI Interrupt 0000:00:11.5[C] -> Link [LNKC] -> GSI 10 (level,
low) -> IRQ 10
PCI: Setting latency timer of device 0000:00:11.5 to 64
eth2 renamed to eth1
BUG: atomic counter underflow at:
[<c0104378>] show_trace_log_lvl+0x1a/0x30
[<c0104ec9>] show_trace+0x12/0x14
[<c0104f22>] dump_stack+0x16/0x18
[<c01bd575>] _atomic_dec_and_lock+0x29/0x4c
[<c0174388>] dput+0x34/0x103
[<c019d181>] sysfs_drop_dentry+0x141/0x149
[<c019d212>] sysfs_hash_and_remove+0x89/0x10e
[<c019f1fc>] sysfs_remove_link+0xe/0x10
[<c0221839>] device_rename+0x110/0x181
[<c025420a>] dev_change_name+0x11e/0x1ca
[<c02545e6>] dev_ifsioc+0x330/0x3d7
[<c0254d25>] dev_ioctl+0x350/0x46e
[<c0249792>] sock_ioctl+0x1be/0x1ca
[<c016f3c0>] do_ioctl+0x1c/0x53
[<c016f5e3>] vfs_ioctl+0x1ec/0x203
[<c016f643>] sys_ioctl+0x49/0x62
[<c0103cde>] sysenter_past_esp+0x5f/0x99
=======================
Tony
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