configs: qemu-gdb: unset UBSAN_SANITIZE_ALL

[  123.491737][    T1] Unexpected kernel BRK exception at EL1
[  123.497593][    T1] Internal error: ptrace BRK handler: f20003e8 [#1] PREEMPT SMP
[  123.500785][    T1] Modules linked in:
[  123.502567][    T1] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G        W         5.8.0-rc3-next-20200630-00003-g15e24419c239-dirty torvalds#11
[  123.507468][    T1] Hardware name: linux,dummy-virt (DT)
[  123.509826][    T1] pstate: 80400005 (Nzcv daif +PAN -UAO BTYPE=--)
[  123.512609][    T1] pc : of_unittest_untrack_overlay+0x64/0x134
[  123.515245][    T1] lr : of_unittest_untrack_overlay+0x64/0x134
[  123.517848][    T1] sp : ffff00006a65fb30
[  123.519668][    T1] x29: ffff00006a65fb30 x28: 0000000000000000
[  123.522295][    T1] x27: ffff00006a65fc30 x26: ffffa00016b86f00
[  123.524937][    T1] x25: 0000000000000000 x24: 0000000000000000
[  123.527592][    T1] x23: ffffa00014c72540 x22: ffffa00016b86000
[  123.530191][    T1] x21: 0000000000000000 x20: 00000000ffffffff
[  123.532845][    T1] x19: 00000000ffffffff x18: 0000000000002690
[  123.535547][    T1] x17: 0000000000002718 x16: 00000000000014b8
[  123.538299][    T1] x15: 0000000000000001 x14: 0080000000000000
[  123.541055][    T1] x13: 0000000000000002 x12: ffff94000298d209
[  123.543801][    T1] x11: 1ffff4000298d208 x10: ffff94000298d208
[  123.546580][    T1] x9 : dfffa00000000000 x8 : ffffa00014c69047
[  123.549247][    T1] x7 : 0000000000000001 x6 : ffffa00014c69040
[  123.552026][    T1] x5 : ffff00006a654040 x4 : 0000000000000000
[  123.554799][    T1] x3 : ffffa00011d59d04 x2 : 00000000ffffffff
[  123.557541][    T1] x1 : ffff00006a654040 x0 : 0000000000000000
[  123.560390][    T1] Call trace:
[  123.561935][    T1]  of_unittest_untrack_overlay+0x64/0x134
[  123.564469][    T1]  of_unittest+0x2220/0x2438
[  123.566585][    T1]  do_one_initcall+0x470/0xa10
[  123.568751][    T1]  kernel_init_freeable+0x510/0x5f0
[  123.571123][    T1]  kernel_init+0x18/0x1e8
[  123.573078][    T1]  ret_from_fork+0x10/0x18
[  123.575119][    T1] Code: 97978a9c d4210000 14000024 97978a99 (d4207d00)
[  123.578138][    T1] ---[ end trace c4e049fb5e3b0ba0 ]---
[  123.580449][    T1] Kernel panic - not syncing: Fatal exception
[  123.583116][    T1] Kernel Offset: disabled
[  123.585066][    T1] CPU features: 0x240002,20002004
[  123.587259][    T1] Memory Limit: none
[  123.588986][    T1] ---[ end Kernel panic - not syncing: Fatal exception ]---

Signed-off-by: Anders Roxell <anders.roxell@linaro.org>

kernel/configs/qemu-gdb.config

@@ -6,3 +6,5 @@ CONFIG_GDB_SCRIPTS=y
 # Easier to debug
 # CONFIG_RANDOMIZE_BASE is not set
 # CONFIG_RELOCATABLE is not set
+
+# CONFIG_UBSAN_SANITIZE_ALL is not set