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[actechag <noc@xxxxxxxxxx>]

Public bug reported:

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

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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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:
  New

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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