On 26/09/18 7:22 PM, Milian Wolff wrote:
> Fixes a crash when the report encounters an address that
> could not be associated with an mmaped region:
>
> #0 0x00005555557bdc4a in callchain_srcline (ip=<error reading variable:
> Cannot access memory at address 0x38>, sym=0x0, map=0x0) at
> util/machine.c:2329
> #1 unwind_entry (entry=entry@entry=0x7fffffff9180,
> arg=arg@entry=0x7ffff5642498) at util/machine.c:2329
> #2 0x00005555558370af in entry (arg=0x7ffff5642498, cb=0x5555557bdb50
> <unwind_entry>, thread=<optimized out>, ip=18446744073709551615) at
> util/unwind-libunwind-local.c:586
> #3 get_entries (ui=ui@entry=0x7fffffff9620, cb=0x5555557bdb50
> <unwind_entry>, arg=0x7ffff5642498, max_stack=<optimized out>) at
> util/unwind-libunwind-local.c:703
> #4 0x0000555555837192 in _unwind__get_entries (cb=<optimized out>,
> arg=<optimized out>, thread=<optimized out>, data=<optimized out>,
> max_stack=<optimized out>) at util/unwind-libunwind-local.c:725
> #5 0x00005555557c310f in thread__resolve_callchain_unwind (max_stack=127,
> sample=0x7fffffff9830, evsel=0x555555c7b3b0, cursor=0x7ffff5642498,
> thread=0x555555c7f6f0) at util/machine.c:2351
> #6 thread__resolve_callchain (thread=0x555555c7f6f0, cursor=0x7ffff5642498,
> evsel=0x555555c7b3b0, sample=0x7fffffff9830, parent=0x7fffffff97b8,
> root_al=0x7fffffff9750, max_stack=127) at util/machine.c:2378
> #7 0x00005555557ba4ee in sample__resolve_callchain (sample=<optimized out>,
> cursor=<optimized out>, parent=parent@entry=0x7fffffff97b8, evsel=<optimized
> out>, al=al@entry=0x7fffffff9750,
> max_stack=<optimized out>) at util/callchain.c:1085
>
Tested-by: Sandipan Das <sandi...@linux.ibm.com>
