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From: Anthony Messina <amessina@messinet.com>
To: Linux NFS Mailing List <linux-nfs@vger.kernel.org>
Subject: Re: Kernel warning: net/sunrpc/clnt.c:2161 call_decode+0x269/0x8a0 [sunrpc]()
Date: Mon, 16 Mar 2015 22:03:33 -0500
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On Tuesday, March 10, 2015 20:29:49 you wrote:
> While this may be unrelated, it is one of the errors that seems to oc=
cur
> around the same time as the issues detailed in "soft lockup in the
> laundromat" [1] and "NMI/soft lockup in nfs_delegation_need_return()"=
 [2].=20
> This is on an NFSv4.2/KRB5 client using kernel-3.18.9-200.fc21.x86_64=
 with
> the patch from thread "[PATCH] NFS: fix clp->cl_revoked list deletion=

> causing softlock in nfsd" applied at the Fedora kernel packaging leve=
l.
>=20
> ------------[ cut here ]------------
> WARNING: CPU: 0 PID: 6545 at net/sunrpc/clnt.c:2161 call_decode+0x269=
/0x8a0
> [sunrpc]()
> Modules linked in: dm_crypt bnep bluetooth rfkill veth cts rpcsec_gss=
_krb5
> nfsv4 dns_resolver nfs fscache ip6t_rpfilter ip6t_REJECT nf_reject_ip=
v6
> xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter=

> ebtables ip6table_na
>  shpchp i2c_i801 crc32c_intel serio_raw dcdbas ghash_clmulni_intel nf=
sd
> auth_rpcgss nfs_acl lockd grace sunrpc uas usb_storage nouveau video =
mxm_wmi
> broadcom wmi i2c_algo_bit drm_kms_helper ttm drm tg3 ptp pps_core
> CPU: 0 PID: 6545 Comm: kworker/0:1 Not tainted 3.18.9-200.fc21.x86_64=
 #1
> Hardware name: Dell Inc. XPS 8300  /0Y2MRG, BIOS A06 10/17/2011
> Workqueue: rpciod rpc_async_schedule [sunrpc]
>  0000000000000000 0000000089b51bad ffff88015d23fcc8 ffffffff8175b71c
>  0000000000000000 0000000000000000 ffff88015d23fd08 ffffffff81098eb1
>  0000000000000000 ffff8801572f1218 ffff880017369000 ffff8802060f1000
> Call Trace:
>  [<ffffffff8175b71c>] dump_stack+0x46/0x58
>  [<ffffffff81098eb1>] warn_slowpath_common+0x81/0xa0
>  [<ffffffffa0641810>] ? nfs4_xdr_dec_readdir+0xf0/0xf0 [nfsv4]
>  [<ffffffff81098fca>] warn_slowpath_null+0x1a/0x20
>  [<ffffffffa02810a9>] call_decode+0x269/0x8a0 [sunrpc]
>  [<ffffffffa0280e40>] ? call_refreshresult+0x150/0x150 [sunrpc]
>  [<ffffffffa0280e40>] ? call_refreshresult+0x150/0x150 [sunrpc]
>  [<ffffffffa028b6e4>] __rpc_execute+0x94/0x450 [sunrpc]
>  [<ffffffffa028bab5>] rpc_async_schedule+0x15/0x20 [sunrpc]
>  [<ffffffff810b1a6d>] process_one_work+0x14d/0x3f0
>  [<ffffffff810b23c3>] worker_thread+0x53/0x470
>  [<ffffffff810b2370>] ? rescuer_thread+0x290/0x290
>  [<ffffffff810b75b8>] kthread+0xd8/0xf0
>  [<ffffffff810b74e0>] ? kthread_create_on_node+0x1b0/0x1b0
>  [<ffffffff8176207c>] ret_from_fork+0x7c/0xb0
>  [<ffffffff810b74e0>] ? kthread_create_on_node+0x1b0/0x1b0
> ---[ end trace aa1a2fd825fce8b1 ]---
>=20
>=20
> [1] http://www.spinics.net/lists/linux-nfs/msg49735.html
> [2] http://www.spinics.net/lists/linux-nfs/msg47059.html
> [3] http://www.spinics.net/lists/linux-nfs/msg49798.html

I forgot to include the Fedora bug report:=20
https://bugzilla.redhat.com/show_bug.cgi?id=3D1200619

=2D-=20
Anthony - https://messinet.com/ - https://messinet.com/~amessina/galler=
y
8F89 5E72 8DF0 BCF0 10BE 9967 92DC 35DC B001 4A4E

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