level 1 translation fault when extracting bzipped tarball

[Milosz Wasilewski]

The following LAVA job failed when extracting tarball

http://validation.linaro.org/scheduler/job/76559/log_file#L_11_4791

> tar xjvf Python-2.7.5.tar.bz2
[...]
tar: bunzip error -3
 [ 170.559102] tar[1279]: unhandled level 1 translation fault (11) at 0xfffffffffffff9, esr 0x92000005
 [ 170.559162] pgd = ffffffc877dfa000
 [ 170.559209] [fffffffffffff9] *pgd=00000008f7d71003, *pmd=0000000000000000
 [ 170.559270]
 [ 170.559334] CPU: 0 PID: 1279 Comm: tar Not tainted 3.12.0-1-linaro-vexpress64 #1ubuntu1~ci+131003010217
 [ 170.559409] task: ffffffc877540b40 ti: ffffffc87756c000 task.ti: ffffffc87756c000
 [ 170.559468] PC is at 0x7f9f40ea1c
 [ 170.559514] LR is at 0x4455ec
 [ 170.559567] pc : [<0000007f9f40ea1c>] lr : [<00000000004455ec>] pstate: 60000000
 [ 170.559621] sp : 0000007fec455050
 [ 170.559666] x29: 0000007fec455050 x28: 0000000028a1b112
 [ 170.559735] x27: 0000000000000005 x26: 0000000000005a42
 [ 170.559804] x25: 0000000000000003 x24: 0000000000000003
 [ 170.559873] x23: 0000000000001000 x22: 0000000000001000
 [ 170.559944] x21: fffffffffffffffd x20: 0000000028a1c120
 [ 170.560014] x19: 0000000000000001 x18: 0000007fec454c40
 [ 170.560086] x17: 0000007f9f40ea00 x16: 0000000000499800
 [ 170.560157] x15: 0000007f9f4d9588 x14: 0000007fec454970
 [ 170.560226] x13: 0000000000000018 x12: 0000000000000008
 [ 170.560297] x11: 0101010101010101 x10: 0101010101010101
 [ 170.560369] x9 : 2d61652e6273642e x8 : 00000000000000d7
 [ 170.560439] x7 : fefefefefefeff09 x6 : 0000000000000001
 [ 170.560508] x5 : 0000000000001000 x4 : 0000000000000000
 [ 170.560575] x3 : 0000000000000000 x2 : 0000000000000000
 [ 170.560642] x1 : 0000000000000000 x0 : 0000000000000001
 [ 170.560703]
 tar: short read

Linaro image: http://snapshots.linaro.org/openembedded/pre-built/vexpress64/483/vexpress64-openembedded_lamp-armv8_20131004-483.img.gz