Re: [BUG] 2.6.24-rc2-mm1 - kernel bug on nfs v4

2007-11-19 Thread Andrew Morton
On Mon, 19 Nov 2007 08:15:48 +0100 Torsten Kaiser [EMAIL PROTECTED] wrote: On Nov 18, 2007 8:18 PM, Trond Myklebust [EMAIL PROTECTED] wrote: On Sun, 2007-11-18 at 19:44 +0100, Torsten Kaiser wrote: NFSv2/3 and NFSv4 share the same dentry_iput and so share the same unlink and sillyrename

Re: [BUG] 2.6.24-rc2-mm1 - kernel bug on nfs v4

2007-11-19 Thread Torsten Kaiser
On Nov 19, 2007 10:00 AM, Andrew Morton [EMAIL PROTECTED] wrote: On Mon, 19 Nov 2007 08:15:48 +0100 Torsten Kaiser [EMAIL PROTECTED] wrote: On Nov 18, 2007 8:18 PM, Trond Myklebust [EMAIL PROTECTED] wrote: I had already fixed that one in my own stack. Attached are the 3 patches that I've

Re: [BUG] 2.6.24-rc2-mm1 - kernel bug on nfs v4

2007-11-19 Thread Christoph Lameter
On Sun, 18 Nov 2007, root wrote: @@ -2155,6 +2155,7 @@ static struct kmem_cache_node *early_kme { struct page *page; struct kmem_cache_node *n; + unsigned long flags; BUG_ON(kmalloc_caches-size sizeof(struct kmem_cache_node)); Well local_irq_save is a bit of

Re: [BUG] 2.6.24-rc2-mm1 - kernel bug on nfs v4

2007-11-19 Thread Andrew Morton
On Sun, 18 Nov 2007 14:18:06 -0500 Trond Myklebust [EMAIL PROTECTED] wrote: Torsten I had already fixed that one in my own stack. Attached are the 3 patches that I've got. 1 from SteveD, 2 fixes. Andrew, could you please unapply the sillyrename patches you've got, and apply these 3

Re: [BUG] 2.6.24-rc2-mm1 - kernel bug on nfs v4

2007-11-18 Thread Torsten Kaiser
On Nov 18, 2007 12:05 AM, Peter Zijlstra [EMAIL PROTECTED] wrote: I've been staring at this NFS code for a while an can't make any sense out of it. It seems to correctly initialize the waitqueue. So this would indicate corruption of some sort. No, it does not correctly initialize the

Re: [BUG] 2.6.24-rc2-mm1 - kernel bug on nfs v4

2007-11-18 Thread Trond Myklebust
On Sun, 2007-11-18 at 19:44 +0100, Torsten Kaiser wrote: On Nov 18, 2007 12:05 AM, Peter Zijlstra [EMAIL PROTECTED] wrote: I've been staring at this NFS code for a while an can't make any sense out of it. It seems to correctly initialize the waitqueue. So this would indicate corruption of

Re: [BUG] 2.6.24-rc2-mm1 - kernel bug on nfs v4

2007-11-18 Thread Torsten Kaiser
On Nov 18, 2007 8:18 PM, Trond Myklebust [EMAIL PROTECTED] wrote: On Sun, 2007-11-18 at 19:44 +0100, Torsten Kaiser wrote: NFSv2/3 and NFSv4 share the same dentry_iput and so share the same unlink and sillyrename logic. But they do not share nfs_init_server()! I wonder why this doesn't

Re: [BUG] 2.6.24-rc2-mm1 - kernel bug on nfs v4

2007-11-17 Thread Christoph Lameter
On Sat, 17 Nov 2007, Andrew Morton wrote: Don't know who to bug about that. That's slub. It appears that list_lock is being taken from process context in one place and from softirq in another. I kicked out some weird interrupt disable code in mm that was only run during NUMA bootstrap.

Re: [BUG] 2.6.24-rc2-mm1 - kernel bug on nfs v4

2007-11-17 Thread root
On Sat, Nov 17, 2007 at 07:09:46PM +0100, Ingo Molnar wrote: * Torsten Kaiser [EMAIL PROTECTED] wrote: Sadly lockdep does not work for me, as it gets turned off early: [ 39.851594] - [ 39.855963] inconsistent {softirq-on-W} - {in-softirq-W} usage. [

Re: [BUG] 2.6.24-rc2-mm1 - kernel bug on nfs v4

2007-11-17 Thread Torsten Kaiser
On Nov 18, 2007 12:05 AM, Peter Zijlstra [EMAIL PROTECTED] wrote: On Sat, Nov 17, 2007 at 08:40:22PM +0100, Torsten Kaiser wrote: Lockdep triggers immedetly before the freeze, but the result is still not helpful: [ 221.565011] INFO: trying to register non-static key. [ 221.566999]

[BUG] 2.6.24-rc2-mm1 - kernel bug on nfs v4

2007-11-16 Thread Kamalesh Babulal
Hi Andrew, The kernel enters the xmon state while running the file system stress on nfs v4 mounted partition. 0:mon e cpu 0x0: Vector: 300 (Data Access) at [c000dbd4f820] pc: c0065be4: .__wake_up_common+0x44/0xe8 lr: c0069768: .__wake_up+0x54/0x88 sp: