On Fri, Jan 09, 2009 at 06:58:17AM +0100, Peter Zijlstra wrote: > > > > > > Jan 8 15:29:17 ying3 kernel: [<c054bb26>] copy_from_user+0x36/0x90 > > > > > Jan 8 15:29:17 ying3 kernel: [<c0737800>] memcpy_fromiovecend+0x60/0x90 > > > > > Jan 8 15:29:17 ying3 kernel: [<c075ce9f>] ip_generic_getfrag+0x9f/0xb0 > > > > > Jan 8 15:29:17 ying3 kernel: [<c075cb6b>] ip_append_data+0x6bb/0x950 > > > > > Jan 8 15:29:17 ying3 kernel: [<c077cb0d>] udp_sendmsg+0x2bd/0x680 > > > > > Jan 8 15:29:17 ying3 kernel: [<c07835f9>] inet_sendmsg+0x39/0x70 > > > > > Jan 8 15:29:17 ying3 kernel: [<c072f0e6>] sock_sendmsg+0xd6/0x100 > > > > > Jan 8 15:29:17 ying3 kernel: [<c072f485>] kernel_sendmsg+0x35/0x50 > > > > > Jan 8 15:29:17 ying3 kernel: [<c07da698>] xs_send_kvec+0xa8/0xb0 > > > > > Jan 8 15:29:17 ying3 kernel: [<c07da711>] xs_sendpages+0x71/0x210 > > > > > Jan 8 15:29:17 ying3 kernel: [<c07dab30>] xs_udp_send_request+0x40/0x120 > > > > > Jan 8 15:29:17 ying3 kernel: [<c07d91ff>] xprt_transmit+0x6f/0x280 > > > > > Jan 8 15:29:17 ying3 kernel: [<c07d6c1f>] call_transmit+0x17f/0x250 > > > > > Jan 8 15:29:17 ying3 kernel: [<c07dda13>] __rpc_execute+0x73/0x250 > > Is there anything pinning that user-space page, if not its free to > fault, which would mean its a real warning... It's kernel memory, not user memory. See xs_udp_send_request in net/sunrpc. Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- 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
