diff options
Diffstat (limited to 'lib/observer/src/crashdump_viewer.erl')
| -rw-r--r-- | lib/observer/src/crashdump_viewer.erl | 73 |
1 files changed, 59 insertions, 14 deletions
diff --git a/lib/observer/src/crashdump_viewer.erl b/lib/observer/src/crashdump_viewer.erl index 9268dac180..2f9f81104a 100644 --- a/lib/observer/src/crashdump_viewer.erl +++ b/lib/observer/src/crashdump_viewer.erl @@ -90,6 +90,7 @@ %% All possible tags - use macros in order to avoid misspelling in the code +-define(abort,abort). -define(allocated_areas,allocated_areas). -define(allocator,allocator). -define(atoms,atoms). @@ -321,8 +322,16 @@ handle_call(general_info,_From,State=#state{file=File}) -> NumAtoms = GenInfo#general_info.num_atoms, WS = parse_vsn_str(GenInfo#general_info.system_vsn,4), TW = case get(truncated) of - true -> ["WARNING: The crash dump is truncated. " - "Some information might be missing."]; + true -> + case get(truncated_reason) of + undefined -> + ["WARNING: The crash dump is truncated. " + "Some information might be missing."]; + Reason -> + ["WARNING: The crash dump is truncated " + "("++Reason++"). " + "Some information might be missing."] + end; false -> [] end, ets:insert(cdv_reg_proc_table, @@ -515,8 +524,15 @@ truncated_warning([Tag|Tags]) -> false -> truncated_warning(Tags) end. truncated_warning() -> - ["WARNING: The crash dump is truncated here. " - "Some information might be missing."]. + case get(truncated_reason) of + undefined -> + ["WARNING: The crash dump is truncated here. " + "Some information might be missing."]; + Reason -> + ["WARNING: The crash dump is truncated here " + "("++Reason++"). " + "Some information might be missing."] + end. truncated_here(Tag) -> case get(truncated) of @@ -692,6 +708,7 @@ val(Fd, NoExist) -> {eof,[]} -> NoExist; [] -> NoExist; {eof,Val} -> Val; + "=abort:"++_ -> NoExist; Val -> Val end. @@ -787,7 +804,7 @@ do_read_file(File) -> ?erl_crash_dump -> reset_index_table(), insert_index(Tag,Id,N1+1), - put(last_tag,{Tag,""}), + put_last_tag(Tag,""), indexify(Fd,Rest,N1), end_progress(), check_if_truncated(), @@ -831,7 +848,7 @@ indexify(Fd,Bin,N) -> <<_:Pos/binary,TagAndRest/binary>> = Bin, {Tag,Id,Rest,N1} = tag(Fd,TagAndRest,N+Pos), insert_index(Tag,Id,N1+1), % +1 to get past newline - put(last_tag,{Tag,Id}), + put_last_tag(Tag,Id), indexify(Fd,Rest,N1); nomatch -> case progress_read(Fd) of @@ -1174,7 +1191,11 @@ parse_link_list("{from,"++Str,Links,Monitors,MonitoredBy) -> parse_link_list(", "++Rest,Links,Monitors,MonitoredBy) -> parse_link_list(Rest,Links,Monitors,MonitoredBy); parse_link_list([],Links,Monitors,MonitoredBy) -> - {lists:reverse(Links),lists:reverse(Monitors),lists:reverse(MonitoredBy)}. + {lists:reverse(Links),lists:reverse(Monitors),lists:reverse(MonitoredBy)}; +parse_link_list(Unexpected,Links,Monitors,MonitoredBy) -> + io:format("WARNING: found unexpected data in link list:~n~s~n",[Unexpected]), + parse_link_list([],Links,Monitors,MonitoredBy). + parse_port(Str) -> {Port,Rest} = parse_link(Str,[]), @@ -1813,16 +1834,16 @@ main_modinfo(_Fd,LM,_LineHead) -> all_modinfo(Fd,LM,LineHead) -> case LineHead of "Current attributes" -> - Str = hex_to_str(val(Fd)), + Str = hex_to_str(val(Fd,"")), LM#loaded_mod{current_attrib=Str}; "Current compilation info" -> - Str = hex_to_str(val(Fd)), + Str = hex_to_str(val(Fd,"")), LM#loaded_mod{current_comp_info=Str}; "Old attributes" -> - Str = hex_to_str(val(Fd)), + Str = hex_to_str(val(Fd,"")), LM#loaded_mod{old_attrib=Str}; "Old compilation info" -> - Str = hex_to_str(val(Fd)), + Str = hex_to_str(val(Fd,"")), LM#loaded_mod{old_comp_info=Str}; Other -> unexpected(Fd,Other,"loaded modules info"), @@ -1848,7 +1869,12 @@ hex_to_term([],Acc) -> Bin}; Term -> Term - end. + end; +hex_to_term(Rest,Acc) -> + {"WARNING: The term is probably truncated!", + "I can not convert hex to term.", + Rest,list_to_binary(lists:reverse(Acc))}. + hex_to_dec("F") -> 15; hex_to_dec("E") -> 14; @@ -2159,7 +2185,8 @@ sort_allocator_types([{Name,Data}|Allocators],Acc,DoTotal) -> Type = case string:tokens(Name,"[]") of [T,_Id] -> T; - [Name] -> Name + [Name] -> Name; + Other -> Other end, TypeData = proplists:get_value(Type,Acc,[]), {NewTypeData,NewDoTotal} = sort_type_data(Type,Data,TypeData,DoTotal), @@ -2686,6 +2713,7 @@ count_index(Tag) -> %%----------------------------------------------------------------- %% Convert tags read from crashdump to atoms used as first part of key %% in cdv_dump_index_table +tag_to_atom("abort") -> ?abort; tag_to_atom("allocated_areas") -> ?allocated_areas; tag_to_atom("allocator") -> ?allocator; tag_to_atom("atoms") -> ?atoms; @@ -2720,6 +2748,14 @@ tag_to_atom(UnknownTag) -> list_to_atom(UnknownTag). %%%----------------------------------------------------------------- +%%% Store last tag for use when truncated, and reason if aborted +put_last_tag(?abort,Reason) -> + %% Don't overwrite the real last tag + put(truncated_reason,Reason); +put_last_tag(Tag,Id) -> + put(last_tag,{Tag,Id}). + +%%%----------------------------------------------------------------- %%% Fetch next chunk from crashdump file lookup_and_parse_index(File,What,ParseFun,Str) when is_list(File) -> Indices = lookup_index(What), @@ -2815,7 +2851,16 @@ collect(Pids,Acc) -> update_progress(), collect(Pids,Acc); {'DOWN', _Ref, process, Pid, {pmap_done,Result}} -> - collect(lists:delete(Pid,Pids),[Result|Acc]) + collect(lists:delete(Pid,Pids),[Result|Acc]); + {'DOWN', _Ref, process, Pid, _Error} -> + Warning = + "WARNING: an error occured while parsing data.\n" ++ + case get(truncated) of + true -> "This might be because the dump is truncated.\n"; + false -> "" + end, + io:format(Warning), + collect(lists:delete(Pid,Pids),Acc) end. %%%----------------------------------------------------------------- |