kernel-packages team mailing list archive

[Steve Capper <steve.capper@xxxxxxxxxx>]

[ 2672.127929] Unable to handle kernel NULL pointer dereference at virtual address 00000008
[ 2672.136000] pgd = ffffffc00007d000
[ 2672.139383] [00000008] *pgd=00000043ec009003, *pmd=00000043ec00a003, *pte=00e0000078090407
[ 2672.147644] Internal error: Oops: 96000045 [#1] SMP
[ 2672.152496] Modules linked in: ceph libceph libcrc32c nfsd auth_rpcgss nfs_acl nfs lockd sunrpc fscache gpio_dwapb gpio_generic xgene_rng uio_pdrv_genirq uio ahci_xgene ahci_platform libahci xgene_enet
[ 2672.170522] CPU: 3 PID: 167 Comm: kworker/3:1 Not tainted 3.13.0-39-generic #66-Ubuntu
[ 2672.178410] Workqueue: ceph-msgr con_work [libceph]
[ 2672.183270] task: ffffffc3e547a100 ti: ffffffc3e5678000 task.ti: ffffffc3e5678000
[ 2672.190717] PC is at tcp_ack+0x55c/0xd8c
[ 2672.194618] LR is at tcp_rcv_established+0x430/0x668
[ 2672.199555] pc : [<ffffffc000562918>] lr : [<ffffffc00056395c>] pstate: a0000145
[ 2672.206911] sp : ffffffc3e567b670
[ 2672.210206] x29: ffffffc3e567b670 x28: 0000000000000000 
[ 2672.215509] x27: ffffffc3e7571d20 x26: 0000000000000004 
[ 2672.220812] x25: 0000000000000001 x24: ffffffc37b9372e8 
[ 2672.226114] x23: ffffffc3e7571c00 x22: 00000000a59a782f 
[ 2672.231417] x21: 00000000a59a837f x20: ffffffc0008e2000 
[ 2672.236719] x19: 0000000000000402 x18: 00000000a0313905 
[ 2672.242021] x17: 0000007facf86220 x16: ffffffc0001b9410 
[ 2672.247323] x15: ffffffbffc1e96d0 x14: 0000000000000000 
[ 2672.252623] x13: 0000000000000000 x12: 0000000000000000 
[ 2672.257926] x11: 0000000000300000 x10: ffffffc000952924 
[ 2672.263229] x9 : 00000000a5ca782f x8 : 0000000000020f01 
[ 2672.268532] x7 : 00000000a2e82fad x6 : 00000000fd4dac2e 
[ 2672.273834] x5 : 0000000000000200 x4 : 0000000000000000 
[ 2672.279137] x3 : ffffffc37b937310 x2 : 0000000000000001 
[ 2672.284440] x1 : 0000000000000000 x0 : ffffffc3e7571d20 
[ 2672.289742] 
[ 2672.291224] Process kworker/3:1 (pid: 167, stack limit = 0xffffffc3e5678058)
[ 2672.298235] Stack: (0xffffffc3e567b670 to 0xffffffc3e567c000)
[ 2672.303951] b660:                                     e567b740 ffffffc3 0056395c ffffffc0
[ 2672.312086] b680: e7571c00 ffffffc3 6e9f17a4 ffffffc3 e55bbd00 ffffffc3 e55bbd28 ffffffc3
[ 2672.320220] b6a0: 00000020 00000000 6e9f179c ffffffc3 6e9f1790 ffffffc3 6e9f17a4 ffffffc3
[ 2672.328355] b6c0: 00000064 00000000 e7571c00 ffffffc3 e567b710 ffffffc3 005669b4 ffffffc0
[ 2672.336490] b6e0: e7571c00 ffffffc3 00000000 ffffffff 00039e9d 00000001 00039e9d 00000033
[ 2672.344625] b700: 00000000 00000000 00000000 00000033 00000000 00000000 300e4f33 13a816f3
[ 2672.352759] b720: 00000000 0000003d 0000000f 00000033 00000020 00000000 00000000 ffffffff
[ 2672.360893] b740: e567b7b0 ffffffc3 0056bde0 ffffffc0 e55bbd00 ffffffc3 e7571c00 ffffffc3
[ 2672.369027] b760: df7ba900 ffffffc3 00000000 00000000 00000000 00000000 6e9f179c ffffffc3
[ 2672.377161] b780: 6e9f1790 ffffffc3 0056bbe0 ffffffc0 e55bbd00 ffffffc3 00000020 00000000
[ 2672.385295] b7a0: 6e9f1740 ffffffc3 009e2000 ffffffc0 e567b820 ffffffc3 00501368 ffffffc0
[ 2672.393429] b7c0: e55bbd00 ffffffc3 00000000 00000000 e7571c00 ffffffc3 009e2000 ffffffc0
[ 2672.401564] b7e0: 00960a34 ffffffc0 e7571c70 ffffffc3 00000001 00000000 00834140 ffffffc0
[ 2672.409698] b800: 000000f8 00000000 005012e8 ffffffc0 00000001 00000000 e7571c70 ffffffc3
[ 2672.417832] b820: e567b870 ffffffc3 00559a90 ffffffc0 e7571d20 ffffffc3 000000f8 00000000
[ 2672.425966] b840: 9e142000 ffffffc3 000040c0 00000000 000005a8 00000000 00000000 00000000
[ 2672.434101] b860: 000000f8 00000000 5c878600 ffffffc3 e567b920 ffffffc3 0058101c ffffffc0
[ 2672.442236] b880: e567b990 ffffffc3 ebfd0000 ffffffc3 e567bad8 ffffffc3 00000f08 00000000
[ 2672.450370] b8a0: fc1ed000 ffffffbf eca94638 ffffffbc fc1ee468 ffffffbf e63e0e10 ffffffc3
[ 2672.458505] b8c0: df660830 ffffffc3 00000009 00000000 000000f8 00000000 e75720cc ffffffc3
[ 2672.466639] b8e0: 00000000 00000000 008ef2b0 ffffffc0 00000000 00000001 e567bac8 ffffffc3
[ 2672.474773] b900: 00000000 00000000 00000000 00000000 000005a8 ffffffc3 00000000 00000000
[ 2672.482907] b920: e567b960 ffffffc3 004fc46c ffffffc0 000000f8 00000000 002eef20 ffffffc0
[ 2672.491041] b940: e567b950 ffffffc3 002b3d04 ffffffc0 e567b960 ffffffc3 004fc420 ffffffc0
[ 2672.499175] b960: e567ba60 ffffffc3 004fc4bc ffffffc0 e5678000 ffffffc3 ffffffff ffffffff
[ 2672.507309] b980: ebfd0000 ffffffc3 00000001 00000000 00000000 00000000 00000000 00000000
[ 2672.515444] b9a0: 00000000 00000000 e567b9e8 ffffffc3 e547a100 ffffffc3 00000000 00000000
[ 2672.523579] b9c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2672.531713] b9e0: 00000000 00000000 e7571c00 ffffffc3 e567baa0 ffffffc3 00580b80 000000f8
[ 2672.539847] ba00: ebfd0000 ffffffc3 ebfd0000 ffffffc3 00000000 00000000 e567bad8 ffffffc3
[ 2672.547981] ba20: fc1ed9c8 ffffffbf fc1edf90 ffffffbf fc1e63e8 ffffffbf fc1ed000 ffffffbf
[ 2672.556115] ba40: df6609e8 ffffffc3 008e2000 ffffffc0 00001000 00000000 00000000 00000000
[ 2672.564249] ba60: e567ba80 ffffffc3 005006b4 ffffffc0 e567bad8 ffffffc3 000000f8 00000000
[ 2672.572383] ba80: e567bb10 ffffffc3 005591f0 ffffffc0 e7571c00 ffffffc3 ebfd0000 ffffffc3
[ 2672.580517] baa0: eca94638 ffffffbc 004fc574 ffffffc0 00000f08 00000000 eca94638 ffffffbc
[ 2672.588651] bac0: e567bad0 ffffffc3 9e141f08 ffffffc3 000000f8 00000000 00000000 00000000
[ 2672.596787] bae0: 00000000 00000000 e567bac8 ffffffc3 00000001 00000000 00000000 00000000
[ 2672.604922] bb00: 00000000 00000000 000040c0 00000000 e567bbb0 ffffffc3 005819fc ffffffc0
[ 2672.613057] bb20: e7571c00 ffffffc3 ebfd0000 ffffffc3 00000000 00000000 fc1ed9c8 ffffffbf
[ 2672.621191] bb40: fc1ed000 ffffffbf eca94638 ffffffbc fc1ee468 ffffffbf e63e0e10 ffffffc3
[ 2672.629325] bb60: df660830 ffffffc3 00000009 00000000 ebfd0000 ffffffc3 fc1e96d0 ffffffbf
[ 2672.637459] bb80: 00000000 00000000 e567bc18 ffffffc3 e567bbb0 ffffffc3 fc1cbc90 ffffffbf
[ 2672.645593] bba0: 00000008 00000000 df660c00 ffffffc3 e567bbf0 ffffffc3 004fd320 ffffffc0
[ 2672.653727] bbc0: 000000f8 00000000 ebfd0000 ffffffc3 e567bbf0 ffffffc3 fc1cbc90 ffffffbf
[ 2672.661862] bbe0: df660830 ffffffc3 000002f6 00000000 e567bc00 ffffffc3 fc1cd4bc ffffffbf
[ 2672.669997] bc00: e567bc50 ffffffc3 fc1cf6c4 ffffffbf 00000001 00000000 e63e0d98 ffffffc3
[ 2672.678131] bc20: 00000000 00000000 e567bc08 ffffffc3 00000001 00000000 00000000 00000000
[ 2672.686265] bc40: e567bc50 ffffffc3 fc1cf6a8 ffffffbf e567bd10 ffffffc3 fc1d0254 ffffffbf
[ 2672.694399] bc60: df660830 ffffffc3 df660968 ffffffc3 df660c10 ffffffc3 df6609b0 ffffffc3
[ 2672.702533] bc80: fc1ee6e8 ffffffbf fc1e3038 ffffffbf e5678000 ffffffc3 00000000 00000000
[ 2672.710667] bca0: 00961000 ffffffc0 00000009 00000000 fc1ee6e8 ffffffbf fc1ed762 ffffffbf
[ 2672.718801] bcc0: fc1e64b8 ffffffbf fc1e2fb8 ffffffbf fc1ee378 ffffffbf fc1e2ff0 ffffffbf
[ 2672.726935] bce0: fc1e2f90 ffffffbf fc1ed760 ffffffbf e567bd10 ffffffc3 fc1d016c 00ffffbf
[ 2672.735069] bd00: 00000f08 00000000 000000f8 00000000 e567bd60 ffffffc3 000bfb50 ffffffc0
[ 2672.743203] bd20: df660c10 ffffffc3 df94d600 ffffffc3 fff9ff00 ffffffc3 fff9ff00 ffffffc3
[ 2672.751337] bd40: fffb4400 ffffffbb 00000000 00000000 fff9ff00 ffffffc3 000bfb74 ffffffc0
[ 2672.759471] bd60: e567bdc0 ffffffc3 000c089c ffffffc0 df94d600 ffffffc3 fff9ff18 ffffffc3
[ 2672.767605] bd80: fff9ff00 ffffffc3 df94d630 ffffffc3 e5678000 ffffffc3 fffffef7 00000000
[ 2672.775739] bda0: 009608d0 ffffffc0 00000001 00000000 007c26f8 ffffffc0 000c0958 ffffffc0
[ 2672.783874] bdc0: e567be30 ffffffc3 000c6960 ffffffc0 df746200 ffffffc3 00972a40 ffffffc0
[ 2672.792008] bde0: 007bf070 ffffffc0 df94d600 ffffffc3 000c0760 ffffffc0 00000000 00000000
[ 2672.800142] be00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2672.808276] be20: 007bf070 ffffffc0 df94d600 ffffffc3 00000000 00000000 00084b30 ffffffc0
[ 2672.816411] be40: 000c688c ffffffc0 df746200 ffffffc3 00000000 00000000 00000000 00000000
[ 2672.824545] be60: 00000000 00000000 e5678000 ffffffc3 00000000 00000000 00000000 00000000
[ 2672.832678] be80: 00000000 00000000 df94d600 ffffffc3 00000000 6efebb76 00000000 2fe9edb7
[ 2672.840813] bea0: e567bea0 ffffffc3 e567bea0 ffffffc3 00000000 ffffffc0 00000000 ffffffc3
[ 2672.848946] bec0: e567bec0 ffffffc3 e567bec0 ffffffc3 00000000 00000000 00000000 00000000
[ 2672.857080] bee0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2672.865215] bf00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2672.873349] bf20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2672.881483] bf40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2672.889617] bf60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2672.897752] bf80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2672.905887] bfa0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2672.914023] bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000005 00000000
[ 2672.922156] bfe0: 00000000 00000000 00000000 00000000 eec686ce df7bf175 74dff6e1 faff3f67
[ 2672.930289] Call trace:
[ 2672.932721] [<ffffffc000562918>] tcp_ack+0x55c/0xd8c
[ 2672.937659] [<ffffffc000563958>] tcp_rcv_established+0x42c/0x668
[ 2672.943634] [<ffffffc00056bddc>] tcp_v4_do_rcv+0x244/0x4b8
[ 2672.949091] [<ffffffc000501364>] release_sock+0xa4/0x14c
[ 2672.954376] [<ffffffc000559a8c>] tcp_sendmsg+0x15c/0xd90
[ 2672.959660] [<ffffffc000581018>] inet_sendmsg+0x44/0xb8
[ 2672.964859] [<ffffffc0004fc468>] sock_sendmsg+0x98/0xbc
[ 2672.970057] [<ffffffc0004fc4b8>] kernel_sendmsg+0x2c/0x40
[ 2672.975427] [<ffffffc0005006b0>] sock_no_sendpage+0x98/0xb0
[ 2672.980969] [<ffffffc0005591ec>] tcp_sendpage+0x48/0x78c
[ 2672.986252] [<ffffffc0005819f8>] inet_sendpage+0x48/0xd8
[ 2672.991536] [<ffffffc0004fd31c>] kernel_sendpage+0x14/0x2c
[ 2672.996999] [<ffffffbffc1cd4b8>] ceph_tcp_sendpage+0x48/0xf8 [libceph]
[ 2673.003498] [<ffffffbffc1cf6c0>] try_write+0x1c4/0xc48 [libceph]
[ 2673.009478] [<ffffffbffc1d0250>] con_work+0x10c/0x668 [libceph]
[ 2673.015368] [<ffffffc0000bfb4c>] process_one_work+0x154/0x3d0
[ 2673.021084] [<ffffffc0000c0898>] worker_thread+0x138/0x3b0
[ 2673.026540] [<ffffffc0000c695c>] kthread+0xd0/0xe8
[ 2673.031306] Code: f9400301 f9400700 f900031f f900071f (f9000420) 
[ 2673.037376] ---[ end trace 99141c7db238b4cf ]---
[ 2673.041969] Kernel panic - not syncing: Fatal exception in interrupt
[ 2673.048292] CPU0: stopping
[ 2673.050988] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G      D       3.13.0-39-generic #66-Ubuntu
[ 2673.059553] Call trace:
[ 2673.061989] [<ffffffc00008847c>] dump_backtrace+0x0/0x16c
[ 2673.067359] [<ffffffc0000885f8>] show_stack+0x10/0x1c
[ 2673.072385] [<ffffffc000602550>] dump_stack+0x74/0x94
[ 2673.077409] [<ffffffc00008ed08>] handle_IPI+0x120/0x138
[ 2673.082606] [<ffffffc0000812cc>] gic_handle_irq+0x74/0x7c
[ 2673.087975] Exception stack(0xffffffc0008dfde0 to 0xffffffc0008dff00)
[ 2673.094382] fde0: 008dc000 ffffffc0 008dc000 ffffffc0 008dff20 ffffffc0 00085600 ffffffc0
[ 2673.102517] fe00: 00022c72 00000000 00000000 00000000 fff79834 ffffffc3 00039ef8 00000001
[ 2673.110651] fe20: 00000020 00000000 00000010 00000000 5f634780 0000026e fff79df0 ffffffc3
[ 2673.118786] fe40: 0096fda8 ffffffc0 0000001f 00000000 0100039f 00000000 00000040 00000000
[ 2673.126921] fe60: 00000018 00000000 e8000000 00000003 00000000 00000000 13fcbd7b 001b9c20
[ 2673.135056] fe80: 00105790 ffffffc0 8627f280 0000007f 84fb4910 0000007f 008dc000 ffffffc0
[ 2673.143190] fea0: 008dc000 ffffffc0 00961000 ffffffc0 009793f8 ffffffc0 0096e958 ffffffc0
[ 2673.151324] fec0: 008dc000 ffffffc0 0096090b ffffffc0 0007d000 00000040 007c54a0 ffffffc0
[ 2673.159458] fee0: 00612cd8 ffffffc0 008dff20 ffffffc0 000855fc ffffffc0 008dff20 ffffffc0
[ 2673.167592] [<ffffffc0000845a8>] el1_irq+0x68/0xc0
[ 2673.172358] [<ffffffc0000ec814>] cpu_startup_entry+0x12c/0x1e4
[ 2673.178160] [<ffffffc0005fa178>] rest_init+0x6c/0x78
[ 2673.183099] [<ffffffc00088f7dc>] start_kernel+0x348/0x360
[ 2673.188470] CPU5: stopping
[ 2673.191164] CPU: 5 PID: 0 Comm: swapper/5 Tainted: G      D       3.13.0-39-generic #66-Ubuntu
[ 2673.199730] Call trace:
[ 2673.202165] [<ffffffc00008847c>] dump_backtrace+0x0/0x16c
[ 2673.207536] [<ffffffc0000885f8>] show_stack+0x10/0x1c
[ 2673.212561] [<ffffffc000602550>] dump_stack+0x74/0x94
[ 2673.217585] [<ffffffc00008ed08>] handle_IPI+0x120/0x138
[ 2673.222781] [<ffffffc0000812cc>] gic_handle_irq+0x74/0x7c
[ 2673.228150] Exception stack(0xffffffc3ec193e20 to 0xffffffc3ec193f40)
[ 2673.234557] 3e20: ec190000 ffffffc3 ec190000 ffffffc3 ec193f60 ffffffc3 00085600 ffffffc0
[ 2673.242692] 3e40: 0000309c 00000000 00000000 00000000 fffb5834 ffffffc3 00039e91 00000001
[ 2673.250826] 3e60: 00000008 00000000 00000010 00000000 7fdfd180 0000026f fffb5df0 ffffffc3
[ 2673.258961] 3e80: ec182610 ffffffc3 ec193d60 ffffffc3 00039cfb 00000001 00000000 00000000
[ 2673.267096] 3ea0: 00000000 00000000 ffffffff ffffffff 00000000 ffffffff 97131590 0000007f
[ 2673.275230] 3ec0: 000a844c ffffffc0 970506f0 0000007f d2a42f10 0000007f ec190000 ffffffc3
[ 2673.283364] 3ee0: ec190000 ffffffc3 00961000 ffffffc0 009793f8 ffffffc0 0096e958 ffffffc0
[ 2673.291498] 3f00: ec190000 ffffffc3 0096090b ffffffc0 0007d000 00000040 007c54a0 ffffffc0
[ 2673.299634] 3f20: 00612cd8 ffffffc0 ec193f60 ffffffc3 000855fc ffffffc0 ec193f60 ffffffc3
[ 2673.307768] [<ffffffc0000845a8>] el1_irq+0x68/0xc0
[ 2673.312534] [<ffffffc0000ec814>] cpu_startup_entry+0x12c/0x1e4
[ 2673.318336] [<ffffffc00008e8b8>] secondary_start_kernel+0xf8/0x108
[ 2673.324483] CPU1: stopping
[ 2673.327176] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G      D       3.13.0-39-generic #66-Ubuntu
[ 2673.335741] Call trace:
[ 2673.338175] [<ffffffc00008847c>] dump_backtrace+0x0/0x16c
[ 2673.343546] [<ffffffc0000885f8>] show_stack+0x10/0x1c
[ 2673.348570] [<ffffffc000602550>] dump_stack+0x74/0x94
[ 2673.353594] [<ffffffc00008ed08>] handle_IPI+0x120/0x138
[ 2673.358791] [<ffffffc0000812cc>] gic_handle_irq+0x74/0x7c
[ 2673.364160] Exception stack(0xffffffc3ec17be20 to 0xffffffc3ec17bf40)
[ 2673.370567] be20: ec178000 ffffffc3 ec178000 ffffffc3 ec17bf60 ffffffc3 00085600 ffffffc0
[ 2673.378703] be40: 00010a44 00000000 00000000 00000000 fff85834 ffffffc3 00039ebc 00000001
[ 2673.386839] be60: 00000020 00000000 00000010 00000000 74d87180 0000026e fff85df0 ffffffc3
[ 2673.394974] be80: ec1c1028 ffffffc3 0000001f 00000000 0100039f 00000000 00000040 00000000
[ 2673.403108] bea0: 00000018 00000000 e8000000 00000003 00000001 00000000 1ffcbd7b 003ba1da
[ 2673.411242] bec0: 000ca91c ffffffc0 b5dfc540 0000007f ee422fa0 0000007f ec178000 ffffffc3
[ 2673.419378] bee0: ec178000 ffffffc3 00961000 ffffffc0 009793f8 ffffffc0 0096e958 ffffffc0
[ 2673.427512] bf00: ec178000 ffffffc3 0096090b ffffffc0 0007d000 00000040 007c54a0 ffffffc0
[ 2673.435646] bf20: 00612cd8 ffffffc0 ec17bf60 ffffffc3 000855fc ffffffc0 ec17bf60 ffffffc3
[ 2673.443780] [<ffffffc0000845a8>] el1_irq+0x68/0xc0
[ 2673.448544] [<ffffffc0000ec814>] cpu_startup_entry+0x12c/0x1e4
[ 2673.454346] [<ffffffc00008e8b8>] secondary_start_kernel+0xf8/0x108
[ 2673.460494] CPU6: stopping
[ 2673.463189] CPU: 6 PID: 0 Comm: swapper/6 Tainted: G      D       3.13.0-39-generic #66-Ubuntu
[ 2673.471755] Call trace:
[ 2673.474190] [<ffffffc00008847c>] dump_backtrace+0x0/0x16c
[ 2673.479561] [<ffffffc0000885f8>] show_stack+0x10/0x1c
[ 2673.484585] [<ffffffc000602550>] dump_stack+0x74/0x94
[ 2673.489609] [<ffffffc00008ed08>] handle_IPI+0x120/0x138
[ 2673.494805] [<ffffffc0000812cc>] gic_handle_irq+0x74/0x7c
[ 2673.500174] Exception stack(0xffffffc3ec197e20 to 0xffffffc3ec197f40)
[ 2673.506581] 7e20: ec194000 ffffffc3 ec194000 ffffffc3 ec197f60 ffffffc3 00085600 ffffffc0
[ 2673.514717] 7e40: 00001d24 00000000 00000000 00000000 fffc1834 ffffffc3 00039e91 00000001
[ 2673.522852] 7e60: 00000008 00000000 00000010 00000000 47aec080 0000034d fffc1df0 ffffffc3
[ 2673.530987] 7e80: ec183110 ffffffc3 ec197d60 ffffffc3 00033109 00000001 00000000 00000000
[ 2673.539121] 7ea0: 00000028 00000000 00417460 00000000 00417548 00000000 88f6d590 0000007f
[ 2673.547257] 7ec0: 001a6c10 ffffffc0 88ee38d0 0000007f c23f2850 0000007f ec194000 ffffffc3
[ 2673.555391] 7ee0: ec194000 ffffffc3 00961000 ffffffc0 009793f8 ffffffc0 0096e958 ffffffc0
[ 2673.563525] 7f00: ec194000 ffffffc3 0096090b ffffffc0 0007d000 00000040 007c54a0 ffffffc0
[ 2673.571659] 7f20: 00612cd8 ffffffc0 ec197f60 ffffffc3 000855fc ffffffc0 ec197f60 ffffffc3
[ 2673.579794] [<ffffffc0000845a8>] el1_irq+0x68/0xc0
[ 2673.584560] [<ffffffc0000ec814>] cpu_startup_entry+0x12c/0x1e4
[ 2673.590362] [<ffffffc00008e8b8>] secondary_start_kernel+0xf8/0x108
[ 2673.596509] CPU4: stopping
[ 2673.599202] CPU: 4 PID: 0 Comm: swapper/4 Tainted: G      D       3.13.0-39-generic #66-Ubuntu
[ 2673.607769] Call trace:
[ 2673.610203] [<ffffffc00008847c>] dump_backtrace+0x0/0x16c
[ 2673.615574] [<ffffffc0000885f8>] show_stack+0x10/0x1c
[ 2673.620598] [<ffffffc000602550>] dump_stack+0x74/0x94
[ 2673.625622] [<ffffffc00008ed08>] handle_IPI+0x120/0x138
[ 2673.630817] [<ffffffc0000812cc>] gic_handle_irq+0x74/0x7c
[ 2673.636187] Exception stack(0xffffffc3ec18fe20 to 0xffffffc3ec18ff40)
[ 2673.642593] fe20: ec18c000 ffffffc3 ec18c000 ffffffc3 ec18ff60 ffffffc3 00085600 ffffffc0
[ 2673.650729] fe40: 0001cfde 00000000 00000000 00000000 fffa9834 ffffffc3 00039ef5 00000001
[ 2673.658865] fe60: 008f5ec0 ffffffc0 fffa9c90 ffffffc3 6e49fa00 0000026e 009734d8 ffffffc0
[ 2673.667000] fe80: ec181b10 ffffffc3 ec18fd60 ffffffc3 00039eb2 00000001 00000000 00000000
[ 2673.675134] fea0: 00000000 00000000 00000000 00000000 00000000 00000000 8bb4f590 0000007f
[ 2673.683268] fec0: 001a6ca0 ffffffc0 8bac5970 0000007f e181cdc0 0000007f ec18c000 ffffffc3
[ 2673.691402] fee0: ec18c000 ffffffc3 00961000 ffffffc0 009793f8 ffffffc0 0096e958 ffffffc0
[ 2673.699536] ff00: ec18c000 ffffffc3 0096090b ffffffc0 0007d000 00000040 007c54a0 ffffffc0
[ 2673.707670] ff20: 00612cd8 ffffffc0 ec18ff60 ffffffc3 000855fc ffffffc0 ec18ff60 ffffffc3
[ 2673.715804] [<ffffffc0000845a8>] el1_irq+0x68/0xc0
[ 2673.720569] [<ffffffc0000ec814>] cpu_startup_entry+0x12c/0x1e4
[ 2673.726370] [<ffffffc00008e8b8>] secondary_start_kernel+0xf8/0x108
[ 2673.732517] CPU7: stopping
[ 2673.735210] CPU: 7 PID: 0 Comm: swapper/7 Tainted: G      D       3.13.0-39-generic #66-Ubuntu
[ 2673.743776] Call trace:
[ 2673.746210] [<ffffffc00008847c>] dump_backtrace+0x0/0x16c
[ 2673.751580] [<ffffffc0000885f8>] show_stack+0x10/0x1c
[ 2673.756605] [<ffffffc000602550>] dump_stack+0x74/0x94
[ 2673.761628] [<ffffffc00008ed08>] handle_IPI+0x120/0x138
[ 2673.766826] [<ffffffc0000812cc>] gic_handle_irq+0x74/0x7c
[ 2673.772195] Exception stack(0xffffffc3ec19be20 to 0xffffffc3ec19bf40)
[ 2673.778602] be20: ec198000 ffffffc3 ec198000 ffffffc3 ec19bf60 ffffffc3 00085600 ffffffc0
[ 2673.786736] be40: 00002a92 00000000 00000000 00000000 fffcd834 ffffffc3 00039e91 00000001
[ 2673.794872] be60: 00000020 00000000 00000000 00000000 fffcd540 ffffffc3 00000400 00000000
[ 2673.803006] be80: ec183c10 ffffffc3 ec19bd60 ffffffc3 00000400 00000000 00000000 00000000
[ 2673.811140] bea0: 0000002d 00000000 00000020 00000000 00000060 00000000 90781590 0000007f
[ 2673.819275] bec0: 000a844c ffffffc0 906b4534 0000007f f1b19420 0000007f ec198000 ffffffc3
[ 2673.827409] bee0: ec198000 ffffffc3 00961000 ffffffc0 009793f8 ffffffc0 0096e958 ffffffc0
[ 2673.835544] bf00: ec198000 ffffffc3 0096090b ffffffc0 0007d000 00000040 007c54a0 ffffffc0
[ 2673.843677] bf20: 00612cd8 ffffffc0 ec19bf60 ffffffc3 000855fc ffffffc0 ec19bf60 ffffffc3
[ 2673.851811] [<ffffffc0000845a8>] el1_irq+0x68/0xc0
[ 2673.856576] [<ffffffc0000ec814>] cpu_startup_entry+0x12c/0x1e4
[ 2673.862377] [<ffffffc00008e8b8>] secondary_start_kernel+0xf8/0x108
[ 2673.868525] CPU2: stopping
[ 2673.871218] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G      D       3.13.0-39-generic #66-Ubuntu
[ 2673.879784] Call trace:
[ 2673.882218] [<ffffffc00008847c>] dump_backtrace+0x0/0x16c
[ 2673.887588] [<ffffffc0000885f8>] show_stack+0x10/0x1c
[ 2673.892613] [<ffffffc000602550>] dump_stack+0x74/0x94
[ 2673.897637] [<ffffffc00008ed08>] handle_IPI+0x120/0x138
[ 2673.902833] [<ffffffc0000812cc>] gic_handle_irq+0x74/0x7c
[ 2673.908202] Exception stack(0xffffffc3ec17fe20 to 0xffffffc3ec17ff40)
[ 2673.914609] fe20: ec17c000 ffffffc3 ec17c000 ffffffc3 ec17ff60 ffffffc3 00085600 ffffffc0
[ 2673.922744] fe40: 0000af5a 00000000 00000000 00000000 fff91834 ffffffc3 00039e91 00000001
[ 2673.930878] fe60: 00000008 00000000 00000010 00000000 17dc2180 0000069b e638f868 ffffffc3
[ 2673.939012] fe80: ec180510 ffffffc3 ec17fd60 ffffffc3 000399e2 00000001 00000000 00000000
[ 2673.947147] fea0: 00000000 00000000 00000000 00000000 00000000 00000000 8bb4f590 0000007f
[ 2673.955282] fec0: 001a6ca0 ffffffc0 8bac5970 0000007f e181cdc0 0000007f ec17c000 ffffffc3
[ 2673.963416] fee0: ec17c000 ffffffc3 00961000 ffffffc0 009793f8 ffffffc0 0096e958 ffffffc0
[ 2673.971550] ff00: ec17c000 ffffffc3 0096090b ffffffc0 0007d000 00000040 007c54a0 ffffffc0
[ 2673.979684] ff20: 00612cd8 ffffffc0 ec17ff60 ffffffc3 000855fc ffffffc0 ec17ff60 ffffffc3
[ 2673.987819] [<ffffffc0000845a8>] el1_irq+0x68/0xc0
[ 2673.992585] [<ffffffc0000ec814>] cpu_startup_entry+0x12c/0x1e4
[ 2673.998387] [<ffffffc00008e8b8>] secondary_start_kernel+0xf8/0x108

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https://bugs.launchpad.net/bugs/1396979

Title:
  APM Mustang board kernel crashes when running Ceph

Status in “linux” package in Ubuntu:
  New

Bug description:
  Hi,
  We've been running Ceph on 4 APM Mustang boards within Linaro, running stock Ubuntu Utopic (problem occurs with Trusty too).

  Essentially when I place the network under heavy load (by writing data
  to a Ceph filesystem backed by 3xOSDs), I experience kernel crashes.
  I've harvested a few backtraces from the serial port and will paste
  them below as separate comments.

  I think the problem lies in the xgene driver, but I don't know enough
  to resolve where this problem is happening.

  Cheers,
  --
  Steve

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