c6e1ec80cd
Following stack trace was seen while doing a data transfer Unable to handle kernel paging request at virtual address 6b6b6b6b6b6b6ef3 pgd = ffffffc01c7c5000 [6b6b6b6b6b6b6ef3] *pgd=0000000000000000, *pud=0000000000000000 Internal error: Oops: 96000004 [#1] PREEMPT SMP Call trace: [<ffffffc000f669ac>] rmnet_map_command+0x19c/0x238 [<ffffffc000f6504c>] _rmnet_map_ingress_handler+0x3c/0x264 [<ffffffc000f65500>] rmnet_ingress_handler+0x1b4/0x3a4 [<ffffffc000f65704>] rmnet_rx_handler+0x14/0x2c [<ffffffc000d8b5ac>] __netif_receive_skb_core+0x514/0x71c [<ffffffc000d8c270>] __netif_receive_skb+0x30/0x98 [<ffffffc000d8d3bc>] process_backlog+0xb0/0x184 [<ffffffc000d8d1f8>] net_rx_action+0xfc/0x210 [<ffffffc00016a2e0>] __do_softirq+0x1c0/0x39c [<ffffffc00016a824>] irq_exit+0x88/0xf4 [<ffffffc0001565e8>] handle_IPI+0x340/0x4b4 [<ffffffc0001455e8>] gic_handle_irq+0xc4/0xec This is because an invalid MAP command was received and was freed and rmnet_data was trying to send the freed skb as an ACK. Fix this by returning if an invalid MAP command is detected. CRs-Fixed: 1019188 Change-Id: Ib52e6551ac67215dab2bc5770ddcf037568f8b77 Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
/*
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* Copyright (c) 2014, 2016 The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*
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* RMNET Data statistics
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*
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*/
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#ifndef _RMNET_DATA_STATS_H_
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#define _RMNET_DATA_STATS_H_
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enum rmnet_skb_free_e {
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RMNET_STATS_SKBFREE_UNKNOWN,
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RMNET_STATS_SKBFREE_BRDG_NO_EGRESS,
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RMNET_STATS_SKBFREE_DELIVER_NO_EP,
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RMNET_STATS_SKBFREE_IPINGRESS_NO_EP,
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RMNET_STATS_SKBFREE_MAPINGRESS_BAD_MUX,
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RMNET_STATS_SKBFREE_MAPINGRESS_MUX_NO_EP,
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RMNET_STATS_SKBFREE_MAPINGRESS_AGGBUF,
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RMNET_STATS_SKBFREE_INGRESS_NOT_EXPECT_MAPD,
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RMNET_STATS_SKBFREE_INGRESS_NOT_EXPECT_MAPC,
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RMNET_STATS_SKBFREE_EGR_MAPFAIL,
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RMNET_STATS_SKBFREE_VND_NO_EGRESS,
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RMNET_STATS_SKBFREE_MAPC_BAD_MUX,
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RMNET_STATS_SKBFREE_MAPC_MUX_NO_EP,
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RMNET_STATS_SKBFREE_AGG_CPY_EXPAND,
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RMNET_STATS_SKBFREE_AGG_INTO_BUFF,
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RMNET_STATS_SKBFREE_DEAGG_MALFORMED,
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RMNET_STATS_SKBFREE_DEAGG_CLONE_FAIL,
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RMNET_STATS_SKBFREE_DEAGG_UNKOWN_IP_TYP,
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RMNET_STATS_SKBFREE_DEAGG_DATA_LEN_0,
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RMNET_STATS_SKBFREE_INGRESS_BAD_MAP_CKSUM,
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RMNET_STATS_SKBFREE_MAPC_UNSUPPORTED,
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RMNET_STATS_SKBFREE_MAX
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};
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enum rmnet_queue_xmit_e {
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RMNET_STATS_QUEUE_XMIT_UNKNOWN,
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RMNET_STATS_QUEUE_XMIT_EGRESS,
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RMNET_STATS_QUEUE_XMIT_AGG_FILL_BUFFER,
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RMNET_STATS_QUEUE_XMIT_AGG_TIMEOUT,
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RMNET_STATS_QUEUE_XMIT_AGG_CPY_EXP_FAIL,
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RMNET_STATS_QUEUE_XMIT_AGG_SKIP,
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RMNET_STATS_QUEUE_XMIT_MAX
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};
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void rmnet_kfree_skb(struct sk_buff *skb, unsigned int reason);
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void rmnet_stats_queue_xmit(int rc, unsigned int reason);
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void rmnet_stats_deagg_pkts(int aggcount);
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void rmnet_stats_agg_pkts(int aggcount);
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void rmnet_stats_dl_checksum(unsigned int rc);
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void rmnet_stats_ul_checksum(unsigned int rc);
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#endif /* _RMNET_DATA_STATS_H_ */
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