Re: ☠ Buildbot (GNU Toolchain): binutils-gdb - failed test (failure) (master)

[Mark Wielaard <mark@klomp.org>]

Hi,

On Fri, May 13, 2022 at 08:18:18PM +0000, builder@sourceware.org wrote:
> A new failure has been detected on builder gdb-debian-armhf while building binutils-gdb.
> 
> Full details are available at:
>     https://builder.sourceware.org/buildbot/#builders/72/builds/181
> 
> Build state: failed test (failure)
> Revision: 5400535a70cd5f7626f4110a69508ad9ff669328
> Worker: debian-armhf
> Build Reason: (unknown)
> Blamelist: Tom Tromey <tromey@adacore.com>
> 
> Steps:
> [...]
> - 5: make check-gdb ( failure )
>     Logs:
>         - stdio: https://builder.sourceware.org/buildbot/#builders/72/builds/181/steps/5/logs/stdio
>         - gdb.sum: https://builder.sourceware.org/buildbot/#builders/72/builds/181/steps/5/logs/gdb_sum
>         - gdb.log: https://builder.sourceware.org/buildbot/#builders/72/builds/181/steps/5/logs/gdb_log

I was a little afraid of this. It looks like even this simple
unittest.exp is slightly flaky. It has failed twice now on armhf (but
not on any other arch).

The actual failure is an timeout followed by some errors because some
variables aren't set after the timeout.

(gdb) maintenance selftest
Running selftest addrmap.
Running selftest arm-record.
Running selftest arm_analyze_prologue.
Running selftest array_view.
Running selftest array_view-copy.
Running selftest child_path.
Running selftest cli_utils.
Running selftest command_structure_invariants.
Running selftest complaints.
Running selftest copy_bitwise.
Running selftest copy_integer_to_size.
Running selftest cp_remove_params.
Running selftest cp_symbol_name_matches.
Running selftest dw2_expand_symtabs_matching.
warning: could not convert 'u8função' from the host encoding (ANSI_X3.4-1968) to UTF-32.
This normally should not happen, please file a bug report.
warning: charset conversion failure for 'u8função'.
You may have the wrong value for 'set ada source-charset'.
Running selftest dwarf2_find_containing_comp_unit.
Running selftest enum-flags.
[...]
Running selftest string_appendf.
Running selftest string_printf.
Running selftest string_vappendf.
Running selftest string_view.
FAIL: gdb.gdb/unittest.exp: no executable loaded: maintenance selftest (timeout)
ERROR: tcl error sourcing /var/lib/buildbot/workers/wildebeest/gdb-debian-armhf/gdb-build/gdb/testsuite/../../../binutils-gdb/gdb/testsuite/gdb.gdb/unittest.exp.
ERROR: can't read "num_ran": no such variable
    while executing
"list $enabled $num_ran"
    (procedure "run_selftests" line 34)
    invoked from within
"run_selftests """
    ("uplevel" body line 2)
    invoked from within
"uplevel 1 $body"
    invoked from within
"with_test_prefix "no executable loaded" {
    set res [run_selftests ""]
    set self_tests_enabled [lindex $res 0]
    set num_ran [lindex $res 1]
}"
    (file "/var/lib/buildbot/workers/wildebeest/gdb-debian-armhf/gdb-build/gdb/testsuite/../../../binutils-gdb/gdb/testsuite/gdb.gdb/unittest.exp" line 89)
    invoked from within
"source /var/lib/buildbot/workers/wildebeest/gdb-debian-armhf/gdb-build/gdb/testsuite/../../../binutils-gdb/gdb/testsuite/gdb.gdb/unittest.exp"
    ("uplevel" body line 1)
    invoked from within
"uplevel #0 source /var/lib/buildbot/workers/wildebeest/gdb-debian-armhf/gdb-build/gdb/testsuite/../../../binutils-gdb/gdb/testsuite/gdb.gdb/unittest.e..."
    invoked from within
"catch "uplevel #0 source $test_file_name""
testcase /var/lib/buildbot/workers/wildebeest/gdb-debian-armhf/gdb-build/gdb/testsuite/../../../binutils-gdb/gdb/testsuite/gdb.gdb/unittest.exp completed in 19 seconds

It is not clear to me why the timeout occurs after "Running selftest
string_view." there should be more self tessts coming after that. But
the two times it timed out it did after that.

Let me know if this get annoying and I remove the selftest from the gdb-check step.

Cheers,

Mark