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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1595303

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

** Tags added: trusty

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https://bugs.launchpad.net/bugs/1595303

Title:
  Kernel Panic on AWS EC2 with Ubuntu 14.04 and Strongswan

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Hello,

  we are running a little VPN-Server to share Data with customers. Since we installed the VPN-Tunnels
  the server started to panic every 24 hours with following trace.
  732.549376] Workqueue: crypto cryptd_queue_worker [cryptd]
  [110732.549376] task: ffff8800bf591800 ti: ffff8800bece6000 task.ti: ffff8800bece6000
  [110732.549376] RIP: 0010:[<ffffffff8132bb8d>]  [<ffffffff8132bb8d>] scatterwalk_map_and_copy+0x4d/0xc0
  [110732.549376] RSP: 0018:ffff8800bece7d50  EFLAGS: 00010202
  [110732.549376] RAX: ffff8800e68bd467 RBX: 000000000000087a RCX: 0000000000000010
  [110732.549376] RDX: 0000000000000050 RSI: ffff8800e68bd7c0 RDI: ffff8800e68bd460
  [110732.549376] RBP: ffff8800bece7d70 R08: 0000000000000001 R09: 0000000000000050
  [110732.549376] R10: 0000000000000050 R11: 0000000000000000 R12: 0000000000000000
  [110732.549376] R13: ffff8800e68bd690 R14: 0000000000000040 R15: ffffe8ffffc203f0
  [110732.549376] FS:  0000000000000000(0000) GS:ffff88010fc20000(0000) knlGS:0000000000000000
  [110732.549376] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [110732.549376] CR2: 000000000000000c CR3: 0000000001c0e000 CR4: 00000000001406e0
  [110732.549376] Stack:
  [110732.549376]  ffff8800e68bd598 ffff8800e68bd7c0 ffffffff0000087a ffff8800e68bd408
  [110732.549376]  ffff8800bece7d90 ffffffffa00dd318 ffff8800e68bd530 0000000000000000
  [110732.549376]  ffff8800bece7da8 ffffffffa00ddc0b ffff8800e68bd690 ffff8800bece7de0
  [110732.549376] Call Trace:
  [110732.549376]  [<ffffffffa00dd318>] crypto_rfc4543_done+0x48/0x60 [gcm]
  [110732.549376]  [<ffffffffa00ddc0b>] gcm_decrypt_done+0x3b/0x40 [gcm]
  [110732.549376]  [<ffffffffa002641b>] cryptd_blkcipher_crypt+0x5b/0x70 [cryptd]
  [110732.549376]  [<ffffffffa002646c>] cryptd_blkcipher_encrypt+0x1c/0x20 [cryptd]
  [110732.549376]  [<ffffffffa0026b04>] cryptd_queue_worker+0x54/0x80 [cryptd]
  [110732.549376]  [<ffffffff81086028>] process_one_work+0x178/0x470
  [110732.549376]  [<ffffffff81086e41>] worker_thread+0x121/0x410
  [110732.549376]  [<ffffffff81086d20>] ? rescuer_thread+0x430/0x430
  [110732.549376]  [<ffffffff8108dc29>] kthread+0xc9/0xe0
  [110732.549376]  [<ffffffff8108db60>] ? kthread_create_on_node+0x1c0/0x1c0
  [110732.549376]  [<ffffffff8173a328>] ret_from_fork+0x58/0x90
  [110732.549376]  [<ffffffff8108db60>] ? kthread_create_on_node+0x1c0/0x1c0
  [110732.549376] Code: 4e 2c 45 85 c9 74 37 48 83 c6 20 45 89 d3 45 85 c9 48 89 75 e8 74 73 8b 5e 08 47 8d 14 19 44 39 d2 89 5d f0 72 30 f6 06 02 74 d3 <44> 8b 0c 25 0c 00 00 00 31 f6 eb d4 0f 1f 80 00 00 00 00 48 8b 
  [110732.549376] RIP  [<ffffffff8132bb8d>] scatterwalk_map_and_copy+0x4d/0xc0
  [110732.549376]  RSP <ffff8800bece7d50>
  [110732.549376] CR2: 000000000000000c
  [110732.549376] ---[ end trace 56d0731046cb2c7e ]---
  [110732.549376] Kernel panic - not syncing: Fatal exception in interrupt

  
  Kind Regards

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