* Re: wait_for_key_construction oops
[not found] <CAJ75kXZb2_MGOrxG6JRyGEKdHm+t_yUk755DpqTvpdyVZ4TFzg@mail.gmail.com>
@ 2012-07-30 22:28 ` Myklebust, Trond
2012-07-31 8:07 ` William Dauchy
0 siblings, 1 reply; 7+ messages in thread
From: Myklebust, Trond @ 2012-07-30 22:28 UTC (permalink / raw)
To: William Dauchy, Schumaker, Bryan; +Cc: Linux NFS mailing list
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^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: wait_for_key_construction oops
2012-07-30 22:28 ` wait_for_key_construction oops Myklebust, Trond
@ 2012-07-31 8:07 ` William Dauchy
2012-08-02 21:28 ` William Dauchy
0 siblings, 1 reply; 7+ messages in thread
From: William Dauchy @ 2012-07-31 8:07 UTC (permalink / raw)
To: Myklebust, Trond; +Cc: Schumaker, Bryan, Linux NFS mailing list, David Howells
On Tue, Jul 31, 2012 at 12:28 AM, Myklebust, Trond
<Trond.Myklebust@netapp.com> wrote:
> I'm therefore Ccing Bryan in case he knows of anything.
I guess that the fixes from David Howells (a427b9e) are related to my
oops I mentioned; particularly the point 4 in his commit.
BUG: unable to handle kernel NULL pointer dereference at 0000000000000070
IP: [<ffffffff811a4a18>] wait_for_key_construction+0x28/0x70
PGD 2bf8de000
Oops: 0000 [#1] PREEMPT SMP
CPU 23
Pid: 25735, comm: kworker/23:2 Tainted: G W 3.4.4 #1 Dell
Inc. C6100 /0D61XP
RIP: 0010:[<ffffffff811a4a18>] [<ffffffff811a4a18>]
wait_for_key_construction+0x28/0x70
RSP: 0018:ffff880b99a15a80 EFLAGS: 00010246
RAX: ffffffff811a4a70 RBX: 0000000000000000 RCX: 0000000000000002
RDX: ffffffff811a4a60 RSI: 0000000000000000 RDI: 0000000000000070
RBP: ffff8803c915e420 R08: ffff88061c877bc1 R09: 0000000000000000
R10: 0000000050159fb7 R11: 0000000000000000 R12: ffffffff816b5e49
R13: ffff880ba944ca48 R14: 0000000000000013 R15: ffff8803c915e423
FS: 0000000000000000(0000) GS:ffff880c3fd60000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000070 CR3: 00000000014aa000 CR4: 00000000000007f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process kworker/23:2 (pid: 25735, threadinfo ffff880b154a0ba0, task
ffff880b154a0750)
Stack:
0000000000000000 ffffffff811a512f 0000000000000000 ffffffff810df09d
0000000000000000 000000000000000e ffff880841b54cc0 ffffffff816c88f8
ffff8803c915e420 ffffffff81184fbb 0000000000000013 ffffffff81935c40
Call Trace:
[<ffffffff811a512f>] ? request_key+0x5f/0xa0
[<ffffffff810df09d>] ? __kmalloc+0x2d/0x120
[<ffffffff81184fbb>] ? nfs_idmap_request_key+0x1ab/0x1c0
[<ffffffff81185027>] ? nfs_idmap_get_key+0x57/0xd0
[<ffffffff811852ae>] ? nfs_map_string_to_numeric+0x3e/0xc0
[<ffffffff8118535f>] ? nfs_idmap_lookup_id+0x2f/0x80
[<ffffffff81185479>] ? nfs_map_name_to_uid+0x39/0x90
[<ffffffff8117dedb>] ? decode_getfattr_attrs+0x94b/0xa10
[<ffffffff8117f776>] ? T.1607+0x96/0xe0
[<ffffffff8117f852>] ? nfs4_xdr_dec_delegreturn+0x72/0x80
[<ffffffff8117f7e0>] ? decode_getfattr+0x20/0x20
[<ffffffff8144db39>] ? rpcauth_unwrap_resp+0x79/0x80
[<ffffffff8117f7e0>] ? decode_getfattr+0x20/0x20
[<ffffffff81445a33>] ? call_decode+0x2a3/0x400
[<ffffffff8144cf26>] ? __rpc_execute+0x46/0x1b0
[<ffffffff81050338>] ? process_one_work+0x108/0x3a0
[<ffffffff8144d0c0>] ? rpc_execute+0x30/0x30
[<ffffffff81050a21>] ? worker_thread+0x151/0x420
[<ffffffff810508d0>] ? rescuer_thread+0x300/0x300
[<ffffffff810508d0>] ? rescuer_thread+0x300/0x300
[<ffffffff81054e3e>] ? kthread+0x9e/0xb0
[<ffffffff81484774>] ? kernel_thread_helper+0x4/0x10
[<ffffffff81482a38>] ? retint_restore_args+0x6/0x6
[<ffffffff81054da0>] ? kthread_freezable_should_stop+0x60/0x60
[<ffffffff81484770>] ? gs_change+0xb/0xb
Code: 00 00 00 40 80 fe 01 53 19 c9 48 89 fb 48 c7 c0 70 4a 1a 81 f7
d1 48 c7 c2 60 4a 1a 81 83 c1 02 48 8d 7f 70 40 84 f6 48 0f 45 d0 <48>
8b 43 70 a8 10 75 20 48 8b 43 70 a8 20 74 08 8b 83 80 00 00
RIP [<ffffffff811a4a18>] wait_for_key_construction+0x28/0x70
RSP <ffff880b99a15a80>
CR2: 0000000000000070
---[ end trace 59a8d5be7e929e25 ]---
--
William
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: wait_for_key_construction oops
2012-07-31 8:07 ` William Dauchy
@ 2012-08-02 21:28 ` William Dauchy
2012-08-02 21:33 ` Myklebust, Trond
0 siblings, 1 reply; 7+ messages in thread
From: William Dauchy @ 2012-08-02 21:28 UTC (permalink / raw)
To: Myklebust, Trond; +Cc: Schumaker, Bryan, Linux NFS mailing list, David Howells
On Tue, Jul 31, 2012 at 10:07 AM, William Dauchy <wdauchy@gmail.com> wrote:
> I guess that the fixes from David Howells (a427b9e) are related to my
> oops I mentioned; particularly the point 4 in his commit.
Seems not because I'm also still getting this oops on wait_for_key_construction
--
William
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: wait_for_key_construction oops
2012-08-02 21:28 ` William Dauchy
@ 2012-08-02 21:33 ` Myklebust, Trond
2012-08-02 21:54 ` William Dauchy
0 siblings, 1 reply; 7+ messages in thread
From: Myklebust, Trond @ 2012-08-02 21:33 UTC (permalink / raw)
To: William Dauchy; +Cc: Schumaker, Bryan, Linux NFS mailing list, David Howells
T24gVGh1LCAyMDEyLTA4LTAyIGF0IDIzOjI4ICswMjAwLCBXaWxsaWFtIERhdWNoeSB3cm90ZToN
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VHJvbmQuTXlrbGVidXN0QG5ldGFwcC5jb20NCnd3dy5uZXRhcHAuY29tDQoNCg==
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: wait_for_key_construction oops
2012-08-02 21:33 ` Myklebust, Trond
@ 2012-08-02 21:54 ` William Dauchy
0 siblings, 0 replies; 7+ messages in thread
From: William Dauchy @ 2012-08-02 21:54 UTC (permalink / raw)
To: Myklebust, Trond; +Cc: Schumaker, Bryan, Linux NFS mailing list, David Howells
Hi Trond,
Thank you for your reply.
On Thu, Aug 2, 2012 at 11:33 PM, Myklebust, Trond
<Trond.Myklebust@netapp.com> wrote:
> Have you applied commit b1027439dff844675f6c0df97a1b1d190791a699 (NFS:
> Force the legacy idmapper to be single threaded)? That patch is Cc:
> stable [>=3.4], and so needs to be applied to your kernel.
> There is also a minor fix from Dan Carpenter in commit
> 5abc03cd919535c61b813f2319cb38326a41e810 (NFS: kmalloc() doesn't return
> an ERR_PTR()) that should be applied.
Yes I have these two patches applied. I got the same trace with a
3.4.7 kernel including these patches.
--
William
^ permalink raw reply [flat|nested] 7+ messages in thread
* wait_for_key_construction oops
@ 2012-09-20 14:27 William Dauchy
2012-09-20 16:11 ` Myklebust, Trond
0 siblings, 1 reply; 7+ messages in thread
From: William Dauchy @ 2012-09-20 14:27 UTC (permalink / raw)
To: Linux NFS mailing list; +Cc: Trond Myklebust
Hello,
I'm still hitting a kernel NULL dereference on
wait_for_key_construction with a 3.4.7 x86_64 kernel.
My build also includes those NFS patches:
a427b9e # NFS: Fix a number of bugs in the idmapper
c506694 # NFS: Clear key construction data if the idmap upcall fails
12dfd08 # NFS: return -ENOKEY when the upcall fails to map the name
5cf02d0 # nfs: skip commit in releasepage if we're freeing memory for
fs-related reasons
caea33d # SUNRPC: return negative value in case rpcbind client creation error
cac5d07 # sunrpc: clnt: Add missing braces
0866004 # NFSv3: Ensure that do_proc_get_root() reports errors correctly
Since I'm not able to reproduce it easily, I don't know exactly when
it's happening.
Any idea? or maybe am I missing some other patches?
I'm using the old nfs userland.
Regards,
BUG: unable to handle kernel NULL pointer dereference at 0000000000000070
IP: [<ffffffff811a5248>] wait_for_key_construction+0x28/0x70
PGD 313892000
Oops: 0000 [#1] PREEMPT SMP
CPU 20
Pid: 23261, comm: kworker/20:12 Tainted: G W 3.4.7
RIP: 0010:[<ffffffff811a5248>] [<ffffffff811a5248>]
wait_for_key_construction+0x28/0x70
RSP: 0018:ffff88089e6e1a70 EFLAGS: 00010246
RAX: ffffffff811a52a0 RBX: 0000000000000000 RCX: 0000000000000002
RDX: ffffffff811a5290 RSI: 0000000000000000 RDI: 0000000000000070
RBP: ffff8804ac5d4800 R08: ffff880bf234c6c1 R09: 0000000000000000
R10: 00000000505a8526 R11: 0000000000000000 R12: ffffffff816abcd1
R13: ffff880887590a48 R14: 000000000000001b R15: ffff8804ac5d4803
FS: 0000000000000000(0000) GS:ffff880c3fd00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000070 CR3: 000000000149e000 CR4: 00000000000007f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process kworker/20:12 (pid: 23261, threadinfo ffff8808e9de7950, task
ffff8808e9de7500)
Stack:
0000000000000000 ffffffff811a595f 0000000000000000 ffffffff810df3cd
ffff8808e9de7500 0000000000000016 ffff88088cdc98c0 ffffffff816be7c0
ffff8804ac5d4800 ffffffff8118564b 000000000000001b ffffffff81935c40
Call Trace:
[<ffffffff811a595f>] ? request_key+0x5f/0xa0
[<ffffffff810df3cd>] ? __kmalloc+0x2d/0x120
[<ffffffff8118564b>] ? nfs_idmap_request_key+0x1ab/0x1c0
[<ffffffff811856b7>] ? nfs_idmap_get_key+0x57/0xe0
[<ffffffff8118594e>] ? nfs_map_string_to_numeric+0x3e/0xc0
[<ffffffff811859ff>] ? nfs_idmap_lookup_id+0x2f/0x80
[<ffffffff81185b19>] ? nfs_map_name_to_uid+0x39/0x90
[<ffffffff8117e56b>] ? decode_getfattr_attrs+0x94b/0xa10
[<ffffffff8117fe06>] ? T.1607+0x96/0xe0
[<ffffffff8117fee2>] ? nfs4_xdr_dec_delegreturn+0x72/0x80
[<ffffffff8105f160>] ? cpuacct_charge+0x20/0x70
[<ffffffff8117fe70>] ? decode_getfattr+0x20/0x20
[<ffffffff81445969>] ? rpcauth_unwrap_resp+0x79/0x80
[<ffffffff8117fe70>] ? decode_getfattr+0x20/0x20
[<ffffffff8143d7c3>] ? call_decode+0x2a3/0x400
[<ffffffff81444d46>] ? __rpc_execute+0x46/0x1b0
[<ffffffff81064a47>] ? try_to_wake_up+0x1d7/0x290
[<ffffffff81444efd>] ? rpc_async_schedule+0x1d/0x30
[<ffffffff810503b8>] ? process_one_work+0x108/0x3a0
[<ffffffff81444ee0>] ? rpc_execute+0x30/0x30
[<ffffffff81050aa1>] ? worker_thread+0x151/0x420
[<ffffffff81050950>] ? rescuer_thread+0x300/0x300
[<ffffffff81050950>] ? rescuer_thread+0x300/0x300
[<ffffffff81054ebe>] ? kthread+0x9e/0xb0
[<ffffffff8147bbb4>] ? kernel_thread_helper+0x4/0x10
[<ffffffff81479e78>] ? retint_restore_args+0x6/0x6
[<ffffffff81054e20>] ? kthread_freezable_should_stop+0x60/0x60
[<ffffffff8147bbb0>] ? gs_change+0xb/0xb
Code: 00 00 00 40 80 fe 01 53 19 c9 48 89 fb 48 c7 c0 a0 52 1a 81 f7
d1 48 c7 c2 90 52 1a 81 83 c1 02 48 8d 7f 70 40 84 f6 48 0f 45 d0 <48>
8b 43 70 a8 10 75 20 48 8b 43 70 a8 20 74 08 8b 83 80 00 00
RIP [<ffffffff811a5248>] wait_for_key_construction+0x28/0x70
RSP <ffff88089e6e1a70>
CR2: 0000000000000070
---[ end trace c733770a2ba5b873 ]---
--
William
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: wait_for_key_construction oops
2012-09-20 14:27 William Dauchy
@ 2012-09-20 16:11 ` Myklebust, Trond
0 siblings, 0 replies; 7+ messages in thread
From: Myklebust, Trond @ 2012-09-20 16:11 UTC (permalink / raw)
To: William Dauchy, dhowells@redhat.com; +Cc: Linux NFS mailing list
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^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2012-09-20 16:11 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
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[not found] <CAJ75kXZb2_MGOrxG6JRyGEKdHm+t_yUk755DpqTvpdyVZ4TFzg@mail.gmail.com>
2012-07-30 22:28 ` wait_for_key_construction oops Myklebust, Trond
2012-07-31 8:07 ` William Dauchy
2012-08-02 21:28 ` William Dauchy
2012-08-02 21:33 ` Myklebust, Trond
2012-08-02 21:54 ` William Dauchy
2012-09-20 14:27 William Dauchy
2012-09-20 16:11 ` Myklebust, Trond
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