On 04/22/2010 05:06 AM, Jan Engelhardt wrote:
Hi, I am observing this hanging nfsd kernel thread: Linux 2.6.33.2 0404] nfsd D ffff88033b29d100 0 26090 2 0x00000000 0410] ffff880191b45c60 0000000000000046 0000000000000010 ffff880191b45fd8 0415] ffff880101e943c0 ffff880191b45fd8 0000000000012300 0000000000012300 0420] 0000000000012300 0000000000012300 0000000000012300 ffff880191b45fd8 0426] Call Trace: 0442] [<ffffffffa04afb42>] rpc_wait_bit_killable+0x30/0x34 [sunrpc] 0459] [<ffffffff812e2997>] __wait_on_bit+0x3e/0x6f 0465] [<ffffffff812e2a36>] out_of_line_wait_on_bit+0x6e/0x77 0479] [<ffffffffa04b02d7>] __rpc_execute+0xf9/0x1b1 [sunrpc] 0501] [<ffffffffa04aa569>] rpc_run_task+0x4f/0x57 [sunrpc] 0515] [<ffffffffa04aa654>] rpc_call_sync+0x3d/0x5a [sunrpc] 0535] [<ffffffffa04b7581>] rpcb_register_call+0x18/0x4b [sunrpc] 0574] [<ffffffffa04b7770>] rpcb_v4_register+0xb4/0x16c [sunrpc] 0612] [<ffffffffa04b26c4>] svc_unregister+0x53/0xe1 [sunrpc] 0643] [<ffffffffa04b285d>] svc_destroy+0x10b/0x123 [sunrpc] 0667] [<ffffffffa07cb883>] nfsd+0x117/0x131 [nfsd] 0674] [<ffffffff8104bd7d>] kthread+0x75/0x7d 0680] [<ffffffff810037a4>] kernel_thread_helper+0x4/0x10 Is it going to timeout, if so when?
I saw this sort of hang at Connectathon, but didn't have a chance to track it down.
To verify, rpcbind is still running when the hang occurs? Or are you running a distribution that uses portmap instead? Is there any other loopback activity on this system, like a mount, or a misconfigured NFSv4 callback?
-- chuck[dot]lever[at]oracle[dot]com -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
